Urx m1

UHF WIRELESS MICROPHONE PACKAGE
UWP-C1
UWP-C2
UWP-C3
UWP-S1
UWP-S2
UWP-X1
UWP-X2
UWP-X5
UHF SYNTHESIZED TRANSMITTER
UTX-B1
UHF SYNTHESIZED TRANSMITTER
UTX-P1
UHF SYNTHESIZED DIVERSITY TUNER
URX-R1
SERVICE MANUAL
1st Edition (Revised 2)
UHF SYNTHESIZED WIRELESS
MICROPHONE
UTX-H1
UHF SYNTHESIZED DIVERSITY TUNER
URX-P1
UHF SYNTHESIZED TUNER UNIT
URX-M1

UWP Series
! WARNING
This manual is intended for qualified service personnel only.
To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that
contained in the operating instructions unless you are qualified to do so. Refer all servicing to
qualified service personnel.
! WARNUNG
Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die
Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei
Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen. Andere als die angegeben
Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung
dazu besitzen.
! AVERTISSEMENT
Ce manual est destiné uniquement aux personnes compétentes en charge de l’entretien. Afin
de réduire les risques de décharge électrique, d’incendie ou de blessure n’effectuer que les
réparations indiquées dans le mode d’emploi à moins d’être qualifié pour en effectuer d’autres.
Pour toute réparation faire appel à une personne compétente uniquement.

1UWP Series
Table of Contents
1. Service Overview
1-1. UTX-B1 ..........................................................................1-1
1-1-1. Disassembly ..........................................................1-1
1-1-2. Precaution for Reassembling .................................1-2
1-1-3. Precaution When Replacing EEPROM (IC401) ...1-2
1-1-4. Error Messages ......................................................1-3
1-2. UTX-H1 ..........................................................................1-4
1-2-1. Disassembly ..........................................................1-4
1-2-2. Precaution for Reassembling .................................1-6
1-2-4. Error Messages ......................................................1-6
1-3. URX-M1 .........................................................................1-7
1-3-1. Removal/Installation .............................................1-7
1-3-2. URX-M1 Checking ...............................................1-8
1-3-3. Error Messages ......................................................1-8
1-4. URX-P1 ..........................................................................1-9
1-4-1. Disassembly ..........................................................1-9
1-4-2. Precaution for Reassembling ...............................1-10
1-4-4. Precaution When Replacing Gasket ....................1-10
1-4-5. Absorption Sheet (for CE only) ..........................1-11
1-4-6. Error Messages ....................................................1-11
1-5. URX-R1 ........................................................................1-12
1-5-1. Locations of the Printed Wiring Boards ..............1-12
1-5-2. Precaution on Routing Harness ...........................1-12
1-5-3. Error Messages ....................................................1-13
1-6. UTX-P1.........................................................................1-14
1-6-1. Disassembly ........................................................1-14
1-6-2. Precaution for Reassembling ...............................1-15
1-7. Unleaded Solder............................................................1-15
2. Electrical Alignment
2-1. UTX-B1 ..........................................................................2-1
2-1-1. Equipment and Tools ............................................2-1
2-1-2. Adjustments ...........................................................2-2
2-2. UTX-H1 ........................................................................2-14
2-2-1. Equipment and Tools ..........................................2-14
2-2-2. Adjustments .........................................................2-15
2-3. URX-M1 .......................................................................2-27
2-3-2. Adjustments .........................................................2-28
2-4. URX-P1 ........................................................................2-41
2-4-2. Adjustments .........................................................2-42
2-5. URX-R1 ........................................................................2-57
2-5-2. Adjustments.........................................................2-58
2-6. UTX-P1.........................................................................2-71
2-6-2. Adjustments.........................................................2-72
3. Spare Parts
3-1. Notes on Repair Parts .....................................................3-1
3-2. Exploded Views ..............................................................3-2
3-2-1. UTX-B1 .................................................................3-2
3-2-2. UTX-H1 ................................................................3-4
3-2-3. URX-M1................................................................3-6
3-2-4. URX-P1 .................................................................3-8
3-2-5. URX-R1 ..............................................................3-10
3-2-6. UTX-P1 ...............................................................3-12
3-3. Electrical Parts List .......................................................3-14
3-3-1. UTX-B1 ...............................................................3-14
3-3-2. UTX-H1 ..............................................................3-17
3-3-3. URX-M1..............................................................3-21
3-3-4. URX-P1 ...............................................................3-26
3-3-5. URX-R1 ..............................................................3-32
3-3-6. UTX-P1 ...............................................................3-39
3-4. Accessories Supplied ....................................................3-43
3-4-1. UWP-C1 ..............................................................3-43
3-4-2. UWP-C2 ..............................................................3-43
3-4-3. UWP-S1 ..............................................................3-44
3-4-4. UWP-S2 ..............................................................3-44
3-4-5. UWP-X1 ..............................................................3-45
3-4-6. UWP-X2 ..............................................................3-45
3-4-7. UWP-C3 ..............................................................3-45
3-4-8. UWP-X5 ..............................................................3-46
4. Semiconductor Pin Assignments
5. Block Diagrams and Circuit Descriptions
5-1. UTX-B1 ..........................................................................5-2
5-2. UTX-H1 ..........................................................................5-4
5-3. URX-M1 .........................................................................5-6
5-4. URX-P1 ..........................................................................5-8
5-5. URX-R1 ........................................................................5-10
5-6. UTX-P1.........................................................................5-12

2 UWP Series
6. Board Layouts
6-1. UTX-B1 ..........................................................................6-1
6-2. UTX-H1 ..........................................................................6-1
6-3. URX-M1 .........................................................................6-2
6-4. URX-P1 ..........................................................................6-4
6-5. URX-R1 ..........................................................................6-5
6-6. UTX-P1...........................................................................6-6
7. Schematic Diagrams
7-1. UTX-B1 ..........................................................................7-1
7-2. UTX-H1 ..........................................................................7-3
7-3. URX-M1 .........................................................................7-4
7-4. URX-P1 ..........................................................................7-6
7-5. URX-R1 ..........................................................................7-8
7-6. UTX-P1.........................................................................7-12

1-1UWP Series
Stereo miniature jack
Supplied
washer
Battery
spring (_)
Battery spring (_)
Jack
bracket
Lock (R)
Lock (L)
Battery cover
Power button
MB-4 board
Screw
BTP1.7 x 5
Two holes
Front cabinet sub assembly (TX)
Hole
Connector (3P)
Nut
Remove the battery spring (_) from the hole
in the state that the spring is being compressed.
Unsolder.
Section 1
Service Overview
1-1. UTX-B1
1-1-1. Disassembly
Rear cabinet (TX)/Antenna
Rear cabinet (TX)
Antenna
Unsolder.
Six screws
BTP1.7 x 9
Stereo miniature jack/MB-4 board

1-2 UWP Series
1-1-2. Precaution for Reassembling
When reassembling the UTX-B1, insert the unit into the hole of the front cabinet while the battery springs
(_) are being compressed as shown.
1-1-3. Precaution When Replacing EEPROM (IC401)
When the EEPROM (IC401) is replaced with the new EEPROM, the same data that have been stored in
the removed EEPROM must be written into the newly mounted EEPROM.
Insert the battery spring (_) into the hole in
the state that the spring is being compressed.
Battery spring (_)
Hole
Two holes

1-3UWP Series
1-1-4. Error Messages
When an error occurs, any of the following error messages can be generated by the self-diagnostics
function that is built-in the UTX-B1 and can appear on the display section.
Message Error contents Remedial measure
Err01 An error occurs in the backup Check the EEPROM (IC401) and its peripheral
memory data. circuits.
Err02 An error occurs in the PLL Check the PLL synthesizer circuit (IC102, CP101 on
synthesizer circuit. the MB-4 board and its peripheral circuits).
Err03 Power supply voltage has exceeded Use the equipment with the power supply of the
the range of allowable limits. specified voltage range.

1-4 UWP Series
1-2. UTX-H1
1-2-1. Disassembly
Cage sub assembly
Cage sub assembly
Model cover
Do not touch the portion
during removing the unit.
Dynamic unit
Remove it using
tweezers.
Connector (3P)
Connector (3P)
Dynamic unit
Grip (B)
Ring stopper
Grip (B)
*Grip removal fixture
*Grip removal fixture
Push up the claws.
(If difficult to remove,
unlock one claw
after another.)
Grip (B)
Go to page 1-5
(Grip A)
* : Tools required :
Grip removal fixture (J-6407-080-A)

1-5UWP Series
Grip (A) Antenna/MB-5 board
Stopper
Stopper
Disengage the claw of
the chassis (A) using
a flat head (_) screwdriver,
and remove the stopper.
Claw of
the chassis (A)
Protruded portion
of the indicator
Remove the chassis (A)
assembly in the direction of
the arrow in the way as if
removing the protruded
portion of the indicator.
Hole
Grip (A)
*LRT screw
(M2 x 4)
*LRT screw
(M2 x 4)
Chassis (A)
assembly
Antenna
Power button
Power lock
Indicator
Chassis (B) sub
assembly
Chassis (A) sub assembly
MB-5 board
Shield
Precision
P2.6 x 5
Precision
P2 x 3
Precision
P2 x 3Precision
P2 x 3
Unsolder.
Three claws
Three claws
Unsolder.
* : Tools required :
LRT screwdriver (J-6402-350-A)

1-6 UWP Series
When install the Grip (A), install the Grip (A) under the state that the power is turned on and the protrud-
ed portion of the indicator is confirmed that it has fitted into the hole of the Grip (A) as shown.
When the EEPROM (IC401) is replaced with the new EEPROM, the same data that have been stored in
the removed EEPROM must be written into the newly mounted EEPROM.
function that is built-in the UTX-H1 and can appear on the display section.
Message Error contents Remedial measure
Err01 An error occurs in the backup Check the EEPROM (IC401) and its peripheral
memory data. circuits.
Err02 An error occurs in the PLL Check the PLL synthesizer circuit (IC102, CP101 on
synthesizer circuit. the MB-5 board and its peripheral circuits).
Err03 Power supply voltage has exceeded Use the equipment with the power supply of the
the range of allowable limits. specified voltage range.
ON
Hole
Grip (A)
Power switch
Protruded portion
of the indicator

1-7UWP Series
1-3. URX-M1
1-3-1. Removal/Installation
m
. Before installing the URX-M1, make sure the MB-806A
into which the URX-M1 will be installed is turned off. Do
not install or uninstall the URX-M1 while the MB-806A is
turned on, as this may damage the connector or cause noise.
. The buttons and display on the front panel of the URX-
M1 may be damaged if they are gripped too strongly.
Always hold the URX-M1 by the side.
. Do not put your fingers on the connectors on the rear
panel of the URX-M1 or into the slot on the unit into
which the URX-M1 will be installed.
. Keep the URX-M1 away from static electricity.
For the MB-806A Tuner Base Unit
Removal
1. On the bottom panel of the MB-806A, locate the lever
corresponding to the slot of the URX-M1 to be
removed and pull the lever forward. The URX-M1 is
ejected from the slot.
Installation
The MB-806A Tuner Base Unit can accommodate up to 6
URX-M1.
1. Inspect the top and bottom side of the URX-M1.
2. Holding both sides of the URX-M1, insert it into the
slot. Push it in until you hear a click.
Lever
For the SRP-X700P Powered Mixer
Removal
1. Insert a screwdriver into the hole under the lower part
of the tuner slot and remove the URX-M1.
Screwdriver : Shaft diamter is between 2 to 4 mm
Shaft length is 30 mm or longer
Installation
The SRP-X700P Powered Mixer can accommodate up to 2
URX-M1.
1. Remove the tuner slot cover from the SRP-X700P and
inspect the top and bottom sides of the URX-M1.
2. Holding the tuner module on both sides, insert it into
the slot.
MASTER
SCENE
RECALL
GPGP
AFAF
RFRF
GPGP
CHCH
BATTBATT
LINE 4 SELECT
A
A
B
C
D
E
F
B
URX-M1
MASTER
SCENE
RECALL
GP
AF
RF
GP
CH
BATT
LINE 4 SELECT
A
A
B
C
D
E
F
B
URX-M1

1-8 UWP Series
1-3-2. URX-M1 Checking
The following procedures describe how to prove URX-M1 whether it needs to be required or not.
Equipment Required : MB-806A (quality unit)
URX-M1 (quality unit)
1. Install the repair URX-M1 to be examined in a quality MB-806A.
2. Check the fault with a quality MB-806A.
. If there is a fault, URX-M1 is defective.
Check the URX-M1 then fix a faulty section, and perform “2. Electrical Alignment”.
. If there is no fault found on the MB-806A, repairing URX-M1 is no longer defective.
Thus the repairing MB-806A, other than URX-M1, is defective.
function that is built-in the URX-M1 and can appear on the display section.
Message
Err01
Err02
Err03
NOTONE
Sq OFF
Error contents
An error occurs in EEPROM data.
The PLL synthesizer circuit does not
lock.
Power supply voltage has exceeded
the range of allowable limits.
The tone signal does not exist, or
any tone signal radio wave other
than 32 kHz is received and the
audio signal is muted.
If you turn on the power while
pressing the “SET” button and the
“_” button at the same time, the
squelch function release mode is
set, and this message appears once
before the display of normal
operation appears.
Remedial measure
Take both of the following remedial measures.
. Write the frequency data that corresponds to the
desired destination location, into EEPROM.
. Perform the RF squelch adjustment and the RF
level indicator adjustment. (Refer to Section 2-3.)
If the frequency data that does not corresponds to
the desired reception frequency range is written:
Write the correct frequency data into the EEPROM.
If the error message is displayed even though the
frequency data is correct:
Check the PLL synthesizer circuit (IC302, CP301,
Q302 and Q303 and its peripheral circuits on the
MB-2 board).
Use the equipment with the power supply of the
specified voltage range.
An interference radio wave has occurred in the
frequency band in use.
. If an error is displayed while the power of the
transmitter is on:
Turn off the power of the transmitter.
. If the RF level indicator of the receiver LCD lights
even when the power of the transmitter is turned off:
Set the frequency of the transmit/receive channel
that is free from the interference radio wave.
When the error is not caused by the signal interfer-
ence, the tone squelch circuit of receiver or transmitter
(both receiver and transmitter) is defective.
. Check the receiver : Check the tone squelch.
(Refer to Section 2-3.)
If the tone squelch does
not work well, check the
tone squelch circuit (IC405
and its peripheral circuit
on the MB-2 board.)
. Check the transmitter : Refer to the Service
Manual of transmitter.
Turn off the power once and then back on without
pressing any button.

1-9UWP Series
Battery spring (_)
Lock (R)
Lock (L)
Battery cover
*Gasket
*Gasket
Two stereo
miniature jacks
Supplied
washer
Battery
spring (_)
Jack
bracket
Power button
MB-1 board
Two holes
Two nuts
Front cabinet sub assembly (RX)
Remove the battery spring (_) from the hole
in the state that the spring is being compressed.
Hole
Unsolder.
B1.7 x 5
1-4. URX-P1
1-4-1. Disassembly
Rear cabinet/Antenna Stereo miniature jack/MB-1 board
Six screws
BTP1.7 x 9
Antenna
Unsolder.
Rear cabinet
Connector (CN1)
Unsolder.
* Refer to “1-4-4. Precaution when Replacing Gasket”.

1-10 UWP Series
When reassembling the URX-P1, insert the unit into the hole of the front cabinet while the battery springs
(_) are being compressed as shown.
When the EEPROM (IC11) is replaced with the new EEPROM, the same data that have been stored in the
removed EEPROM must be written into the newly mounted EEPROM.
1-4-4. Precaution When Replacing Gasket
When replacing the gasket, separate the new gasket (3-207-026-01) into two blocks and use it.
Insert the battery spring (_) into the hole in
the state that the spring is being compressed.
Battery spring (_)
Hole
Two holes

1-11UWP Series
1-4-5. Absorption Sheet (for CE only)
Several absorption sheets are attached to the MB-1 board of the URX-P1 (CE62/CE67 model). When
replacing parts, replace the parts after peeling off the absorption sheet.
When replacement of the parts is completed, be sure to attach the absorption sheet that has been peeled off.
function that is built-in the URX-P1 and can appear on the display section.
Absorption sheets (1)
Absorption sheet (2)
MB-1 board
Message
Err01
Err02
Err03
NOTONE
Sq OFF
Error contents
lock.
operation appears.
Remedial measure
. Write the frequency data that corresponds to the desired destination
location, into EEPROM.
. Perform the RF squelch adjustment and the RF level indicator
adjustment. (Refer to Section 2-4.)
If the frequency data that does not corresponds to the desired reception
frequency range is written:
If the error message is displayed even though the frequency data is
correct:
Check the PLL synthesizer circuit (IC302, CP301, Q302 and Q303 and
its peripheral circuits on the MB-1 board).
Use the equipment with the power supply of the specified voltage range.
An interference radio wave has occurred in the frequency band in use.
. If an error is displayed while the power of the transmitter is on:
. If the RF level indicator of the receiver LCD lights even when the power
of the transmitter is turned off:
Set the frequency of the transmit/receive channel that is free from
the interference radio wave.
When the error is not caused by the signal interference, the tone squelch
circuit of receiver or transmitter (both receiver and transmitter) is defective.
. Check the receiver : Check the tone squelch. (Refer to Section 2-4.)
If the tone squelch does not work well, check
the tone squelch circuit (IC405 and its
peripheral circuit on the MB-1 board.)
. Check the transmitter : Refer to the Service Manual of transmitter.
Turn off the power once and then back on without pressing any button.

1-12 UWP Series
1-5. URX-R1
1-5-1. Locations of the Printed Wiring Boards
1-5-2. Precaution on Routing Harness
If the antenna harness is removed during removal of circuit boards (or parts), route the antenna harness as
shown below.
JK-1
MB-3
DP-2
Harness clamps Antenna harnessAntenna harness

1-13UWP Series
Message
Err01
Err02
Err03
NOTONE
Sq OFF
Error contents
lock.
operation appears.
Remedial measure
. Write the frequency data that corresponds to the
desired destination location, into EEPROM.
. Perform the RF squelch adjustment and the RF
level indicator adjustment. (Refer to Section 2-5.)
If the frequency data that does not corresponds to
the desired reception frequency range is written:
If the error message is displayed even though the
frequency data is correct:
Check the PLL synthesizer circuit (IC302, CP301,
Q302 and Q303 and its peripheral circuits on the
MB-3 board).
Use the equipment with the power supply of the
specified voltage range.
An interference radio wave has occurred in the
frequency band in use.
. If an error is displayed while the power of the
transmitter is on:
. If the RF level indicator of the receiver LCD lights
even when the power of the transmitter is turned off:
Set the frequency of the transmit/receive channel
that is free from the interference radio wave.
When the error is not caused by the signal interfer-
ence, the tone squelch circuit of receiver or transmitter
(both receiver and transmitter) is defective.
. Check the receiver : Check the tone squelch.
(Refer to Section 2-5.)
If the tone squelch does
not work well, check the
tone squelch circuit (IC405
and its peripheral circuit
on the MB-3 board.)
. Check the transmitter : Refer to the Service
Manual of transmitter.
Turn off the power once and then back on without
pressing any button.
function that is built-in the URX-R1 and can appear on the display section.

1-14 UWP Series
1-6. UTX-P1
1-6-1. Disassembly
Upper sub assembly
Notch
Four screws
P2 x 6
Four screws
P2 x 6
Battery
case Battery case
Case
MB-1094
board
XLA connector
Connector holder
Locking
Coil spring
Screw
K2 x 5
Screw
P1.7 x 3
Screw
P1.7 x 6
Three screws
B1.7 x 8
Three screws
B2 x 6
Two screws
P2 x 6
Two screws
P2 x 6
Two screws
P2 x 6
Battery spring (_) L
Battery spring (_) R
Battery spring (+)
Battery spring (+)
Lower spring
Press and hold the notch, and pull up the upper sub assembly.
Remove the solder, and disconnect the harness from
the XLA connector terminal.
*Remove the
solders.
*Remove the
solders.
Upper sub assembly
Case
MB-1094 board
XLA connector

1-15UWP Series
When reassembling the UTX-P1, be sure that the knob on the case and the switch on the MB-1094 board
fit together correctly.
1-7. Unleaded Solder
Boards requiring use of unleaded solder are printed with a lead free mark (LF) indicating the solder
contains no lead.
(Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular
size.)
: LEAD FREE MARK
m
. Be sure to use the unleaded solder for the printed circuit board printed with the lead free mark.
. The unleaded solder melts at a temperature about 40 dC higher than the ordinary solder, therefore, it is
recommended to use the soldering iron having a temperature regulator.
. The ordinary soldering iron can be used but the iron tip has to be applied to the solder joint for a
slightly longer time. The printed pattern (copper foil) may peel away if the heated tip is applied for too
long, so be careful.
Knob
Case
Knob Panel
Switch
Lever
MB-1094 board

2-1UWP Series
Section 2
Electrical Alignment
2-1. UTX-B1
2-1-1. Equipment and Tools
Equipment Required
Name Specifications Model Name
DC POWER SUPPLY Output regulated voltage : 0 to 5 V, 2 A –
DC AMMETER Measurement : 300 mA –
SPECTRUM ANALYZER Frequency : 10 kHz to 3 GHz ADVANTEST R3361B or equivalent
MODULATION ANALYZER RF input Frequency : 150 kHz to 3 GHz ANRITSU MS616A or equivalent
RF POWER METER Range : 3 uW to 100 mW HP 435B (Power sensor HP 8482A) or equivalent
WITH POWER SENSOR
AUDIO ANALYZER . Oscillator : 20 Hz to 100 kHz HP 8903B (with A-weight filter) or equivalent
. DISTORTION ANALYZER
. S/N METER
. LEVEL METER
FREQUENCY COUNTER Frequency : 10 Hz to 1000 MHz HP 5358A or equivalent
Effective digits: 10 digits
OSCILLOSCOPE Frequency : DC to 10 MHz –
DIGITAL VOLT METER Effective digits : 3 1
/2
digits –
Tool
Name Part No. Remarks
MM-SMA conversion connector J-6402-490-A For RF signal output
SMA-BNC conversion connector J-6402-480-A For RF signal output
Adjustor (0.4 x 1.3 mm) 7-721-052-81 Screwdriver for adjustment

2-2 UWP Series
2-1-2. Adjustments
This section describes adjustments and checks which must
be completed to assure that the specifications are complied
with.
Make adjustment and checks following the procedure be-
low:
Preparation
1. When adjustments are performed, remove the MB-4
board from UTX-B1 unit.
(Refer to the Section 1-1-1. for removal.)
2. Connect the SMA-BNC conversion connector (J-6402-
480-A) and the MM-SMA conversion connector (J-
6402-490-A) to the antenna terminal (CN101) on the
MB-4 board as shown below.
MM-SMA conversion connector
SMA-BNC conversion connector
CN101
MB-4 board (B side)
ONOFF
MB-4 board
(A side)
S301
CT101
(Transmitter output)
RV102
CT401
(Transmitter frequency)
RV2 (Max.
frequency deviation)
RV1 (Max.
RV101 (Reference
RV103
(Tone signal level)
GND
BATT
Solder here.
Solder here.
Lead wireDC ammeter
MB-4 board (B side)
DC requlated power supply
(DC output voltage : + 3.0 ±0.1 V)
Lead wire
3. Connecting the DC power supply
Supply the DC power to the battery terminal on MB-4
board using the wires as below.
Check
After the DC power supply connection is complete, set
the power switch (S301) to ON, and check the level on
DC ammeter.
DC ammeter indication level: 130 to 200 mA
Switch and Control Initial Setting
MB-4 board
Switch and Control Setting
U6264 model ;62-01 channel (758.125 MHz)
CE62 model ;Group 00, 62-01 channel (798.125 MHz)
AU model ;66-01 channel (792.250 MHz)
CN model ;62-01 channel (758.125 MHz)
KR model ;59-01 channel (740.125 MHz)
Attenuation setting : 0 dB
Accumulated time setting : “00 : 00”
n
Note down the setting position before the adjustment.
After the Adjustment complete, set the original position.
Adjustment Location
1. Power Supply Voltage Check
2. Carrier Frequency Adjustment
3. RF Power Output Adjustment
4. Reference Frequency Deviation Adjustment
5. Maximum Frequency Deviation Adjustment
6. Distortion Ratio Check
7. S/N Check
8. Frequency Characteristics Check
9. Tone Signal Adjustment
10. Spurious Emissions Check
11. Ocupied Band Width Check
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓

2-3UWP Series
Equipment and Tools
. DC power supply
DC output voltage : +3.0 ±0.1 Vdc
. DC ammeter
. Digital volt meter (or Digital multimeter)
MB-4 board
Transmission channel
U6264 model ; 62-01 channel (758.125 MHz)
CE62 model ; Group 00, 62-01 channel (798.125 MHz)
AU model ; 66-01 channel (792.250 MHz)
CN model ; 62-01 channel (758.125 MHz)
KR model ; 59-01 channel (740.125 MHz)
Accumulated time setting :“00 : 00”
n
Take note of the settings before starting the confirmation
work.
After confirmation is completed, return the settings to
the original setting before change.
Connections
(For connecting the DC power supply, refer to step
“3. Connecting the DC power supply” in Section 2-1-2.)
S301
C212
C211
+ _
GND
DC voltmeter
MB-4 board (B side)MB-4 board (A side)
Procedure
1. Set the POWER switch (S301) on the MB-4 board to ON.
2. Check the DC Voltage of the + terminal on the C212 to
the specified voltage as below :
Specification : + terminal DC Voltage = +3.3 ±0.1Vdc
3. Check the DC voltage of the + terminal on the C211 to
Specification : + terminal DC voltage= +5.0 ±0.1Vdc

2-4 UWP Series
CN101
Frequency counter
MB-4 board
(B side)
MM-SMA conversion connector and
Equipment and Tools
. DC power supply
. DC ammeter
. Frequency counter
. Adjustor (SONY Part No. 7-721-052-81)
. MM-SMA conversion connector
(SONY Part No. J-6402-490-A)
. SMA-BNC conversion connector
MB-4 board
n
Connections
Procedure
1. Connect a frequency counter to the antenna terminal
(CN101) via the MM-SMA conversion connector and
the SMA-BNC conversion connector.
2. Adjust 1CT401 so that the frequency counter reading
meets the following specification.
Specification : Carrier frequency mentioned below.
U6264 model ; 770.125 MHz ±1 kHz
U6668 model ; 794.125 MHz ±1 kHz
CE62 model ; 810.000 MHz ±1 kHz
AU model ; 799.250 MHz ±1 kHz
CN model ; 770.125 MHz ±1 kHz
KR model ; 746.125 MHz ±1 kHz
Adjustment : 1CT401/MB-4 Board (A side)
(Refer to page 2-2 for the adjustment location.)

2-5UWP Series
Power sensor
Power meter
CN101
MB-4 board
(B side)
Equipment and Tools
. DC power supply
. DC ammeter
. Power meter (with power sensor)
MB-4 board
RF power output : “H”
n
Connections
+0.5
_0.1
Procedure
1. Connect the power meter (with power sensor) to the an-
tenna terminal (CN101) via the MM-SMA conversion
connector and the SMA-BNC conversion connector.
2. Adjust 1CT101 so that the power meter reading meets
the following specification.
Specification : power meter = Maximum
3. Adjust 1RV102 so that the power meter reading meets
Specification :
. U6264, U6668, CE62, CE67, AU and CN models :
Power meter = 28 ±1 mW
. KR model :
Power meter = 9 mW
Adjustment : 1RV102/MB-4 Board (A side)
4. Set the transmission output to “L”.
5. Check that the power meter reading meets the follow-
ing.
5 ±2 mW
. KR model : 1.6 ±0.6 mW

2-6 UWP Series
Connections
Procedure
1. Input 1 kHz, _60 dBV (_57.8 dBm) signal to the MIC
INPUT connector (with Mic input cable).
(0 dBV = 1 Vrms)
2. Connect a modulation analyzer to the antenna terminal
3. Adjust 1RV101 so that the frequency deviation for the
modulation analyzer reading meets the following speci-
fication.
Specification : Frequency deviation = ±5 kHz ±0.1 kHz
Adjustment : 1RV101/MB-4 board (A side)
4. Reference Frequency Deviation
Adjustment
Equipment and Tools
. DC power supply
DC output voltage : +3.0 ±0.1Vdc
. DC ammeter
. Audio analyzer
. Modulation analyzer
MEASUREMENT : FM
MEASUREMENT RANGE : AUTO or ±10 kHz
HPF : 50 Hz
LPF : 20 kHz or 15 kHz
DE EMPHASIS : 50 usec
. Adjustor (SONY part No. 7-721-052-81)
MB-4 board
n
Oscilloscope
Modulation
analyzer
CN101
RF IN
MB-4 board
(B side)
Oscillator
Audio analyzer Level meter
CN1
MB-4 board
(A side)
Lead wires
BNC connector HOT
GND Solder

2-7UWP Series
fication.
Equipment and Tools
. DC power supply
. DC current meter
. Audio analyzer
MEASUREMENT : FM
HPF : 50 Hz
. Oscilloscope
MB-4 board
n
work.
5. Maximum Frequency Deviation
Adjustment
Equipment and Tools
. DC power supply
. DC ammeter
. Audio analyzer
MEASUREMENT : FM
HPF : 50 Hz
. Oscilloscope
MB-4 board
n
Connections
. Same as “4. Reference Frequency Division adjustments”.
. For connecting the DC power supply, refer to step
“3. Connecting the DC power supply” in Section 2-1-2.
Procedure
1. Input 1 kHz, _24 dBV (_21.8 dBm) signal to the MIC IN-
PUT connector (with Mic input cable). (0 dBV = 1 Vrms)
3. Adjust 1RV2 so that the frequency deviation for the mod-
ulation analyzer reading meets the following specification.

2-8 UWP Series
CN1
RF IN
AF
OUT
CN101
Level meter
Distortion
analyzer
Oscilloscope
Oscillator
Audio analyzer
Modulation
analyzer
MB-4 board (A side)
MB-4 board (B side)
7. S/N Check
Equipment and Tools
. DC power supply
. DC ammeter
. Audio analyzer
MEASUREMENT : FM
MEASUREMENT RANGE : ±40 kHz
HPF : 50 Hz
. Oscilloscope
MB-4 board
n
work.
Connections
. Same as “6. Distortion Ratio Check”.
Procedure
1. Connect the audio analyzer (level meter) to the AF OUT
connector for the modulation analyzer.
2. Set the modulation analyzer.
INPUT connector from audio analyzer (oscillator).
(0 dBV = 1 Vrms)
4. Set the audio analyzer to S/N measurement (with A-
weighting filter).
5. Check that the S/N reading is more than 30 dB.
n
Perform the checking with the MIC INPUT connector
short-circuit.
Connections
. For the connection to the MIC IN connector (CN1), refer
to the section “4. Reference Frequency Deviation
Adjustment”.
Procedure
1. Connect the audio analyzer (distortion analyzer) to the
AF OUT connector for the modulation analyzer.
2. Set the audio analyzer to distortion measurement
(DISTORTION mode).
(0 dBV = 1 Vrms)
4. Check that the distortion analyzer reading is less than
0.90%.
INPUT connector.
0.9%.

2-9UWP Series
5. Check the indication on the audio analyzer (level meter).
6. Set the SENSITIVITY on the audio analyzer (level
meter) so that the audio analyzer (level meter) reads 0 dB.
7. Switch the oscillation frequency for the audio analyzer
(oscillator) from 1 kHz to 150 Hz.
8. Check that audio analyzer (level meter) reading is 0
±1.5 dB.
(oscillator) from 150 Hz to 15 kHz.
10. Check that the reading for the audio analyzer (level
meter) is 2 ±1.5 dB.
Equipment and Tools
. DC power supply
. DC current meter
. Frequency counter
. Spectrum analyzer
. RF adjusting cable (SONY part No. 7-721-052-81)
MB-4 board
n
Equipment and Tools
. DC power supply
. DC ammeter
. Audio analyzer
MEASUREMENT : FM
HPF : 50 Hz
. Oscilloscope
MB-4 board
n
work.
Connections
Procedure
1. Connect the audio analyzer (level meter) to the AF-
OUT connector for the modulation analyzer.
3. Set the audio analyzer to level meter mode.

2-10 UWP Series
Spectrum analyzer
CN101
MB-4 board
(B side)
Frequency
counter
Modulation
analyzer
RF IN AF UOT
CN101
MB-4 board
(B side)
Frequency check
Connections
Procedure
n
Perform the checking with the MIC INPUT connector short-
circuit.
1. Set the modulation analyzer as below:
MEASUREMENT : FM
HPF : 4 kHz
LPF : >20 kHz
DE EMPHASIS : OFF
2. Check that the frequency counter (resolution : 0.1 Hz
setting) reading is 32.000 kHz ±1Hz.
Frequency deviation adjustment
Connections
Procedure
1. Connect the spectrum analyzer to the antenna terminal
2. Set the spectrum analyzer as below:
CENTER FREQUENCY (fc)
U6264 model : 770.125 MHz
U6668 model : 794.125 MHz
CE62 model : 810.000 MHz
AU model : 799.250 MHz
CN model : 770.125 MHz
KR model ; 746.125 MHz
REFERENCE LEVEL : 20 dBm
FREQUENCY SPAN : 200kHz (20 kHz/DIV)
RBW (resolution band width) : 3kHz
VBW (video band width) : 1kHz
ATT : 20 dB
3. Adjust 1RV103/MB-4 board (A side) so that level
between carrier frequency (frequency center level) on
spectrum analyzer and tone signal is within 29 dB ±1 dB.
fc
32.000 kHz
29±1 dB
20 dBm
v:10 dB/div
H:20 MHz/div

2-11UWP Series
Equipment and Tools
. DC power supply
. DC ammeter
. Spectrum analyzer
MB-4 board
n
work.
10 dBm
Carrier frequency
_40 dBm
v:10 dB/div
H:20 MHz/div
3 GHz1.5 GHz (fc)
Connections
. For connecting the MIC input connector (CN1), refer to
“4.Reference Frequency Deviation Adjustment”.
Procedure
1. Set the spectrum analyzer as below;
CENTER FREQUENCY : 1.5 GHz
REFERENCE LEVEL : 20 dBm (10 dBm ; KR
model only)
FREQUENCY SPAN : 3 GHz or Full span
(300 MHz/DIV)
RBW (resolution band width) : 300 kHz
ATT : 20 dB
2. Check that the spurious emissions level (up to 3 GHz)
reading for the spectrum analyzer remains below
_40 dBm.
Spectrum analyzer
CN101
MB-4 board
(B side)
CN1
MB-4 board (A side)
Input termination (shorted between GND and HOT)

2-12 UWP Series
11. Occupied Band Width Check
Equipment and Tools
. DC power supply
. DC ammeter
. Audio analyzer
. Spectrum analyzer
MB-4 board
n
work.
Spectrum analyzer
CN101
MB-4 board
(B side)
Oscillator
CN1
MB-4 board
(A side)
Connections

2-13UWP Series
Procedure
CENTER FREQUENCY :
U6264 model : 770.125 MHz
U6668 model : 794.125 MHz
KRmodel : 746.125 MHz
REFERENCE LEVEL : 20 dBm (10 dBm ;
KR model only)
VBW (video band width) : 1 kHz
ATT : 20 dB
2. Set the carrier frequency level (the center frequency
level of the spectrum analyzer) to the REFERENCE
LEVEL when no signals are input.
INPUT connector (with Mic input cable) from the audio
analyzer (oscillator).
4. At this time, confirm that the bandwidth at the level
_23 dB lower than REFERENCE LEVEL is in
specification.
Specification : bandwidth =100 kHz or less
v:10 dB/div
H:50 kHz/div
_23 dB
fc
REFERENCE LEVEL
band width
80 kHz or less
carrier frequency
with no input signal

2-14 UWP Series
2-2. UTX-H1
Equipment Required
Name Specifications Model Name
DC POWER SUPPLY Output regulated voltage : 0 to 5 V, 2 A –
DC AMMETER Measurement : 300 mA –
SPECTRUM ANALYZER Frequency : 10 kHz to 3 GHz ADVANTEST R3361B or equivalent
MODULATION ANALYZER RF input Frequency : 150 kHz to 3 GHz ANRITSU MS616A or equivalent
RF POWER METER Range : 3 uW to 100 mW HP 435B (Power sensor HP 8482A) or equivalent
WITH POWER SENSOR
AUDIO ANALYZER . Oscillator : 20 Hz to 100 kHz HP 8903B (with A-weight filter) or equivalent
. DISTORTION ANALYZER
. S/N METER
. LEVEL METER
FREQUENCY COUNTER Frequency : 10 Hz to 1000 MHz HP 5358A or equivalent
Effective digits: 10 digits
OSCILLOSCOPE Frequency : DC to 10 MHz –
DIGITAL VOLT METER Effective digits : 3 1
/2
digits –
Tool
MM-SMA conversion connector J-6402-490-A For RF signal output
SMA-BNC conversion connector J-6402-480-A For RF signal output
Adjustor (0.4 x 1.3 mm) 7-721-052-81 Screwdriver for adjustment

2-15UWP Series
2-2-2. Adjustments
This section describes adjustments and checks which must
be completed to assure that the specifications are complied
with.
Make adjustment and checks following the procedure be-
low:
Preparation
1. When adjustments are performed, remove the MB-5
board from UTX-H1 unit.
(Refer to the Section 1-2-1. for removal.)
2. Connect the SMA-BNC conversion connector (J-6402-
480-A) and the MM-SMA conversion connector (J-
6402-490-A) to the antenna terminal (CN101) on the
MB-5 board as shown below.
GND
BATT
Solder here.
Lead wire
DC ammeter
MB-5 board (B side)
DC requlated power supply
(DC output voltage : + 3.0 ±0.1 V)
Solder here.
Lead wire
3. Connecting the DC power supply
Supply the DC power to the battery terminal on MB-5
board using the wires as below.
Check
After the DC power supply connection is complete, set the
power switch (S301) to ON, and check the level on DC
ammeter.
DC ammeter indication level: 130 to 200 mA
4. Switch and Control Initial Setting
MB-5 board
AU model ;66-01 channel (792.250 MHz)
CN model ;62-01 channel (758.125 MHz)
KR model ;59-01 channel (740.125 MHz)
n
4. Reference Frequency Deviation Adjustment
5. Maximum Frequency Deviation Adjustment
7. S/N Check
11. Ocupied Band Width Check
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
CN101 MB-5 board (B side)

2-16 UWP Series
S301
ON
OFF
CT101
MB-5 board (A side)
RV102
RV101 (Standard
CT401
(Transmitter frequency)
RV103
(Tone signal level)
RV1 (Max.
RV2 (Max.
Equipment and Tools
. DC power supply
. DC ammeter
MB-5 board
n
work.
Connections
Procedure
1. Set the POWER switch (S301) on the MB-5 board to ON.
2. Check the DC Voltage of the + terminal on the C212 to
Specification : + terminal DC Voltage = +3.3 ±0.1Vdc
3. Check the DC voltage of the + terminal on the C211 to
Specification : + terminal DC voltage= +5.0 ±0.1Vdc
S301
ON
OFF
MB-5 board (A side) MB-5 board (B side)
_+
GND
DC voltmeter
C211
C212
Adjustment Location

2-17UWP Series
CN101
Frequency counter
MB-5 board (B side)
Equipment and Tools
. DC power supply
. DC ammeter
. Frequency counter
MB-5 board
n
Connections
Procedure
1. Connect a frequency counter to the antenna terminal
2. Adjust 1CT401 so that the frequency counter reading
meets the following specification.
Specification : Carrier frequency mentioned below.
U6264 model ; 770.125 MHz ±1 kHz
U6668 model ; 794.125 MHz ±1 kHz
AU model ; 799.250 MHz ±1 kHz
CN model ; 770.125 MHz ±1 kHz
KR model ; 746.125 MHz ±1 kHz

2-18 UWP Series
CN101
MB-5 board (B side)
Power sensor
Power meter
Equipment and Tools
. DC power supply
. DC ammeter
. Power meter (with power sensor)
MB-5 board
RF power output : “H”
n
Connections
Procedure
1. Connect the power meter (with power sensor) to the an-
tenna terminal (CN101) via the MM-SMA conversion
connector and the SMA-BNC conversion connector.
2. Adjust 1CT101 so that the power meter reading meets
Specification : power meter = Maximum
3. Adjust 1RV102 so that the power meter reading meets
Specification :
Power meter = 28 ±1 mW
. KR model :
Power meter = 9.0 mW
Adjustment : 1RV102/MB-5 Board (A side)
4. Set the transmission output to “L”.
5. Check that the power meter reading meets the follow-
ing.
5 ±2 mW
. KR model : 1.6 ±0.6 mW
+0.5
_0.1

2-19UWP Series
Connections
Procedure
INPUT connector (with Mic input cable).
(0 dBV = 1 Vrms)
fication.
4. Reference Frequency Deviation
Adjustment
Equipment and Tools
. DC power supply
. DC ammeter
. Audio analyzer
MEASUREMENT : FM
HPF : 50 Hz
MB-5 board
n
CN101
Oscilloscope
Modulation
analyzer
MB-5 board (B side)
MB-5 board
(B side)
CN2
Oscillator
Lead wires
BNC connector
GND HOT
Solder

2-20 UWP Series
fication.
Equipment and Tools
. DC power supply
. DC ammeter
. Audio analyzer
MEASUREMENT : FM
HPF : 50 Hz
. Oscilloscope
MB-5 board
n
work.
5. Maximum Frequency Deviation
Adjustment
Equipment and Tools
. DC power supply
. DC ammeter
. Audio analyzer
MEASUREMENT : FM
HPF : 50 Hz
. Oscilloscope
MB-5 board
n
Connections
. Same as “4. Reference Frequency Division adjustments”.
Procedure
1. Input 1 kHz, _24 dBV (_21.8 dBm) signal to the MIC IN-
PUT connector (with Mic input cable). (0 dBV = 1 Vrms)
3. Adjust 1RV2 so that the frequency deviation for the mod-
ulation analyzer reading meets the following specification.

2-21UWP Series
CN2
RF IN
AF
OUT
Level meter
Distortion
analyzer
Oscilloscope
Oscillator
Audio analyzer
Modulation
analyzer
CN101
MB-5 board (B side)
and
7. S/N Check
Equipment and Tools
. DC power supply
. DC ammeter
. Audio analyzer
MEASUREMENT : FM
HPF : 50 Hz
. Oscilloscope
MB-5 board
n
work.
Connections
Procedure
1. Connect the audio analyzer (level meter) to the AF OUT
connector for the modulation analyzer.
(0 dBV = 1 Vrms)
4. Set the audio analyzer to S/N measurement (with A-
weighting filter).
5. Check that the S/N reading is more than 30 dB.
n
Perform the checking with the MIC INPUT connector
short-circuit.
Connections
. For the connection to the MIC IN connector (CN2), refer
to the section “4. Reference Frequency Deviation
Adjustment”.
Procedure
1. Connect the audio analyzer (distortion analyzer) to the
AF OUT connector for the modulation analyzer.
2. Set the audio analyzer to distortion measurement
(DISTORTION mode).
(0 dBV = 1 Vrms)
0.90%.
INPUT connector.
0.9%.

2-22 UWP Series
5. Check the indication on the audio analyzer (level meter).
6. Set the SENSITIVITY on the audio analyzer (level
meter) so that the audio analyzer (level meter) reads 0 dB.
(oscillator) from 1 kHz to 150 Hz.
8. Check that audio analyzer (level meter) reading is 0
±1.5 dB.
(oscillator) from 150 Hz to 15 kHz.
10. Check that the reading for the audio analyzer (level
meter) is 2 ±1.5 dB.
Equipment and Tools
. DC power supply
. DC ammeter
. Frequency counter
. Spectrum analyzer
. RF adjusting cable (SONY part No. 7-721-052-81)
MB-5 board
n
Equipment and Tools
. DC power supply
. DC ammeter
. Audio analyzer
MEASUREMENT : FM
HPF : 50 Hz
. Oscilloscope
MB-5 board
n
work.
Connections
Procedure
1. Connect the audio analyzer (level meter) to the AF-
OUT connector for the modulation analyzer.
3. Set the audio analyzer to level meter mode.

2-23UWP Series
CN101
Spectrum analyzer
MB-5 board (B side)
CN101
Frequency
counter
Modulation
analyzer
RF IN AF UOT
MB-5 board (B side)
Frequency check
Connections
Procedure
n
Perform the checking with the MIC INPUT connector short-
circuit.
1. Set the modulation analyzer as below:
MEASUREMENT : FM
HPF : 4 kHz
LPF : >20 kHz
DE EMPHASIS : OFF
2. Check that the frequency counter (resolution : 0.1 Hz
setting) reading is 32.000 kHz ±1Hz.
Frequency deviation adjustment
Connections
Procedure
1. Connect the spectrum analyzer to the antenna terminal
CENTER FREQUENCY (fc)
U6264 model : 770.125 MHz
U6668 model : 794.125 MHz
REFERENCE LEVEL : 20 dBm
RBW (resolution band width) : 3kHz
VBW (video band width) : 1kHz
ATT : 20 dB
3. Adjust 1RV103/MB-5 board (A side) so that level
between carrier frequency (frequency center level) on
spectrum analyzer and tone signal is within 29 dB ±1 dB.
fc
32.000 kHz
29±1 dB
20 dBm
v:10 dB/div
H:20 MHz/div

2-24 UWP Series
Equipment and Tools
. DC power supply
. DC ammeter
. Spectrum analyzer
MB-5 board
n
work.
10 dBm
Carrier frequency
_37 dBm
v:10 dB/div
H:20 MHz/div
3 GHz1.5 GHz (fc)
Connections
Procedure
1. Set the spectrum analyzer as below;
CENTER FREQUENCY : 1.5 GHz
REFERENCE LEVEL : 20 dBm (10 dBm ; KR
model only)
FREQUENCY SPAN : 3 GHz or Full span
(300 MHz/DIV)
ATT : 20 dB
2. Check that the spurious emissions level (up to 3 GHz)
reading for the spectrum analyzer remains below
_37 dBm.
CN101
Spectrum analyzer
MB-5 board (B side)
CN2
MB-5 board (B side)
Input termination (shorted between GND and HOT)

2-25UWP Series
11. Occupied Band Width Check
Equipment and Tools
. DC power supply
. DC ammeter
. Audio analyzer
. Spectrum analyzer
MB-5 board
n
work.
CN101
Spectrum analyzer
MB-5 board (B side)
CN2
Oscillator
MB-5 board (B side)
Connections

2-26 UWP Series
Procedure
CENTER FREQUENCY :
U6264 model : 770.125 MHz
U6668 model : 794.125 MHz
REFERENCE LEVEL : 20 dBm (10 dBm ;
KR model only)
VBW (video band width) : 1 kHz
ATT : 20 dB
2. Set the carrier frequency level (the center frequency
level of the spectrum analyzer) to the REFERENCE
LEVEL when no signals are input.
INPUT connector (with Mic input cable) from the audio
analyzer (oscillator).
4. At this time, confirm that the bandwidth at the level
_23 dB lower than REFERENCE LEVEL is in
specification.
Specification : bandwidth =100 kHz or less
v:10 dB/div
H:50 kHz/div
_23 dB
fc
REFERENCE LEVEL
band width
80 kHz or less
carrier frequency
with no input signal

2-27UWP Series
2-3. URX-M1
Equipment
Name Specifications Model name
DC Power supply Output regulated voltage : +9.0 ±0.1 Vdc _
Frequency counter Frequency : 1 Hz to 225 MHz HP 5318A or equivalent
Signal generator Frequency : 100 kHz to 990 MHz HP 8656B or equivalent
Spectrum analyzer Frequency : 10 kHz to 5 GHz ADVANTEST TR4173 or equivalent
1
DC volt meter (Multi Meter) Effective digits : 3 / digits _3
Audio analyzer Frequency : 10 Hz to 100 kHz HP or 8903B equivalent
(with A-weighted filter)
RF millivolt meter Frequency : 10 kHz to 1000 MHz MEGURO MV-19B, C (with 50 Z termination prove chip
MP-3109) or equivalent
Level meter Frequency : 20 Hz to 100 kHz _
Noise meter Frequency : 10 Hz to 500 kHz MEGURO MN-445B or equivalent
Tracking generator Frequency : 100 kHz to 2 GHz ADVANTEST TR4153A or equivalent
Function generator 32.000 kHz ± 0.1 Hz signal (sine wave) HP 8904A or equivalent
can be generated.
Mic amp Gain : 30 dB to 70 dB _
Input impedance :
600 Z (balanced)
Oscilloscope Frequency : DC to 30 MHz _
Tools
Adjuster (0.4 x 1.3 mm) 7-721-052-81 For adjustment
DC cut fixture _ Refer to “How to make DC cut fixture”
How to make DC cut fixture
Required parts
BNC-J connector; 1 (Part No. 1-562-261-21)
BNC-P connector; 1 (Part No. 1-560-257-11)
Ceramic capacitor 0.001 uF ; 1 (Part No. 1-161-456-00)
BNC-J connector
(1-562-261-21)
Ceramic capacitor
0.001 uF 50 V (1-161-456-00)
Cut Plated wire (0.6 to 0.8 ø)
2 mm
3 mm
BNC-P connector
(1-560-257-11)
Solder

2-28 UWP Series
2-3-2. Adjustments
This section describes the following adjustments (and
checks) required to satisfy the specifications.
Adjustment Item
1. Current Consumption Check
↓
2. Reference Frequency (4 MHz oscillation frequency)
Adjustment
↓
3. Output Level Adjustment
↓
4. RF Squelch Level/RF Indicator Level Adjustment
↓
5. Overall Characteristics Check
(1) Output Level Check
(2) S/N Check
(3) Frequency Characteristic Check
(4) Distortion Ratio Check
(5) RF Squelch Level/RF Indicator Check
(6) RF Level Indicator Check
(7) AF Level Indicator/AF Indicator Check
(8) Tone Squelch Check
n
0 dBuVEMF = _113 dBm
(EMF = Electromotive force)
0 dBm = 1 mW at 50 Z loaded
Note on Adjustment
The RF level of the input signal (the output level of the sig-
nal generator) for adjustment is expressed as an open ended
voltage in unit dBuVEMF (0 dBuVEMF = 1 uVEMF).
The adjustment is to be performed by calibrating the output
level of the signal generator as shown below.
Calibration method
1. Connect the RF millivoltmeter to the signal generator as
shown in the figure below.
2. Adjust the level of the output signal from the signal gen-
erator (SSG) so that the RF millivoltmeter reads 50 mV.
The level of the output signal from the signal generator
(SSG) when RF millivoltmeter reads 50 mV shall be
specified as 100 dBuVEMF (at no load).
Setting the Squelch OFF Mode
When the URX-M1 is installed in the MB-806A, the
squelch OFF mode can be set in the following procedure.
1. Turn off the power of the MB-806A and install the
URX-M1.
2. While pressing the “SET ” and the “_ ” button of the
URX-M1 at the same time, turn on the power of the
MB-806A. (Keep pressing the above buttons and
continue the adjustment.)
3. When the following message appears on the LCD of
the URX-M1, remove your hands from the above
buttons.
Model LCD message
U6264 U62
U6668 U66
CE62 CE62
CE67 CE67
AU AU66
4. When the message “Sq OFF ” is displayed, the squelch
OFF mode is set.
n
When you turn off the power of the MB-806A, the
equipment returns to the normal mode (squelch ON
mode).
V
Signal generator
(SSG)
RF millivoltmeter
(set in 100 mV range)
50 Z
termination probe
Adjust the output of
the signal generator
(SSG) so that the
meter reads 50 mV.
50 mV50 Z
50 Z
OSC
100 dBu

2-29UWP Series
1. Current Consumption Check
Equipment and Tools
. DC power supply
DC output voltage : +9.0Vdc ±0.1 V
. DC ammeter
URX-M1 Front panel
Channel setting :
U6264 model; Group 03, 6401 channel (770.125 MHz)
CE62 model ; Group 04, 6332 channel (810.000 MHz)
AU model ; Group 12, 6701 channel (799.250 MHz)
RF Squelch : OFF (For setting, refer to “Setting the
Squelch OFF mode” on page 2-28)
Procedure
1. Remove the case (upper and lower) of the URX-M1
from the UWP unit.
2. Connect a DC power supply (+9.0Vdc ±0.1 V) as
shown in the figure below.
DC ammeter indication level
(under no-RF signal input and SQUELCH OFF mode)
: 190 mA or less
DC ammeter
MB-2 board (B side)
DC power supply
(DC output voltage : +9.0 ± 0.1 V)
Solder
Solder
CN2
Pin No.6
Pin No.7
2. Reference Frequency (4 MHz oscillation
frequency) Adjustment
Equipment and Tools
. DC power supply
DC output voltage : +9.0Vdc ±0.1 V
. Frequency counter
URX-M1 Front panel
Channel setting :
Connection/Adjustment Location
When adjustment is performed, remove the case (upper
and lower) of the URX-M1 from the UWP unit.
(For connecting the DC power supply, refer to the “1.
Current Consumption Check” .)
Procedure
1. Connect the frequency counter to the IC13 (pin No.4)/
MB-2 board (A side).
2. Adjustmemt
Specification : :Frequency at IC13 (pin No.4)/MB-2
board (A side) = 4.000 MHz ± 20 Hz
Adjustment : 1 CT11/MB-2 board (A side)
IC13 CT11
Frequency counter
MB-2 board (A side)
Pin No.4

2-30 UWP Series
1 62 3 4 5
ANTENNA A IN
ANTENNA B IN
URX-M1
TUNER
OUTPUT 1
RV201 RV101
Oscilloscope
600 Z
balance
input
Signal
generator
DC cut fixture
MB-806A
Tuner slot
DC cut fixture
Audio
analyzerMIC amp
3. Output Level Adjustment
Perform this adjustment when the TUNER OUTPUT levels
deviate from the specification.
Preparation
1. Turn off the POWER switch of the MB-806A.
2. Remove the case cover of the MB-806A.
3. Remove the upper side case lid of the URX-M1, and
insert the URX-M1 to theTuner [1] slot of the MB-
806A.
Equipment and Tools
. Tuner base unit MB-806A
. Audio analyzer (level meter, distortion meter)
. Mic amp (Noise meter)
. Oscilloscope
. Adjuster (0.4 x 1.3 mm) : (Part No. 7-721-052-81)
. DC cut fixture (See the “How to make DC cut fixture”
on page 2-27.)
Connection/Adjustment Location
. URX-M1 Front panel
Channel setting :
. MB-806A Rear panel
ATT (ANTENNA A, B) switch : 0 dB
OUTPUT LEVEL switch : LINE (_20 dBm)
Procedure
Preparation
Set the signal generator as follows :
Signal generator setting
FREQUENCY (carrier frequency) :
U6264 model ; 770.125 MHz
U6668 model ; 794.125 MHz
CE62 model ; 810.000 MHz
AU model ; 799.250 MHz
RF OUTPUT (Output level) : 60 dBuVEMF
(= _53 dBm)
MODULATION (Modulation frequency) : 100 Hz
DEVIATION (Frequency deviation) : ±5 kHz
Adjustment
n
The adjustment procedures describe that the URX-M1
(to be adjusted) is installed into the Tuner [1] slot on the
MB-806A.
1. Connect the audio analyzer to the TUNER OUTPUT 1
connector via MIC amp.
2. Connect the signal generator to the ANTENNA A IN
connector with DC cut fixture.
3. Adjustment (ANTENNA A IN side adjustment)
Point : TUNER OUTPUT 1
Specification : Output level (level meter indication
level) = _20 dBm ±0.5 dB (at 600 Z
loaded)
Adjustment : 1RV201/MB-2 board (URX-M1)
4. Connect the signal generator to the ANTENNA B IN

2-31UWP Series
5. Adjustment (ANTENNA B IN side adjustment)
Point : TUNER OUTPUT 1
Specification : Output level (level meter indication
level) = _20 dBm ±0.5 dB (at 600 Z
loaded)
Adjustment : 1RV101/MB-2 board (URX-M1)
n
The output level difference between the ANTENNA A
IN side and the ANTENNA B IN side should be within
0.5 dB.
After Completing Adjustment
1. Turn off the MB-806A power switch.
2. Remove the tuner unit URX-M1 to be adjusted from
the MB-806A.
3. Attach the upper side case lid to the tuner unit URX-M1.
1 2 3 4 5 6
ANTENNA B IN
MB-806A
ANTENNA A IN
Signal
generator
DC cut fixture
Tuner slot
DC cut fixture
4. RF Squelch Level/RF Indicator Level
Adjustment
Perform this adjustment when Muting levels deviate from
the specification.
This adjustment is performed automatically by the learning
function of the URX-M1 RSSI learning.
m
. The adjustment is performed using as Tuner base unit
MB-806A.
. Perform the adjustment with the URX-M1 installed in the
MB-806A.
Preparation
1. Turn off the POWER switch of the MB-806A.
2. Insert the URX-M1 to theTuner [1] slot of the MB-
806A.
Equipment and Tools
. Signal generator
. DC cut fixture (See the “How to make DC cut fixture”
on page 2-27.)
Connection

2-32 UWP Series
A C2 L
(A C2 L)
Procedure
Preparation
Set the signal generator as follows :
U6264 model ; 759.000 MHz
U6668 model ; 783.000 MHz
RF OUTPUT (Output level) : 35 duVEMF (= _78 dBm)
MODULATION (Modulation frequency) :
OFF (No modulation)
Adjustment
m
. The adjustment procedures describe that the URX-M1
(to be adjusted) is installed into the Tuner [1] slot on the
MB-806A.
. The message indications “A” and “B” on the LCD
display and those of the inscription on the ANTENNA
connector where the RF input signal is connected are
reversed. However, follow the adjustment procedure as
described below.
2. Turn OFF the MB-806A POWER switch.
3. Set the “ATT” switch on the MB-806A rear panel as
follows.
ATT (ANTENNA A, B) switch: 0 dB
4. Set the RF OUTPUT (output level) of the signal genera-
tor to the OFF.
5. Turn on the power of the MB-806A. Before any
indication appears on the LCD (URX-M1), press the
“SET”, the “+” and the “_” button of the URX-M1 at
the same time. (Keep pressing the above buttons and
continue the adjustment.)
6. When the following message appears on the LCD
(URX-M1), remove your hand from the above buttons.
U6264 model : “U62”
U6668 model : “U66”
CE62 model : “CE62”
CE67 model : “CE67”
AU model : “AU66”
-SOL-
A C1 L
(A C1 L)
(-SQL- )
A
7. When a message appears on the LCD (URX-M1), all seg-
ments light on. Then pressing the following buttons in
the order starting from “SET” → “+” → “_” → “SET”
buttons while all segments are lighting.
8. Indication on LCD (URX-M1, Tuner [1]) appears as
follows :
LCD :
9. Set the RF OUTPUT (output level) of the signal genera-
tor to the ON.
10. Check first that indication “L” of “AC1L” on the LCD
(URX-M1, Tuner [1]) has disappeared, and then press
the “SET ” button of the URX-M1.
n
If the LCD (on A area: refer to the previous procedure
8) displays below, perform the following adjustment (1)
or (2).
.When “L” indication does not disappear from the
LCD. (The RF input level is lower than the reference
level.)
.When “H” is displayed. (The RF input level is higher
than the reference level)
(1) Check the RF output level and FREQUENCY of
the signal generator (perform re-setting if
necessary), and repeat from procedure 1.
(2) If the above conditions (the “L” indication does
not disappear, or “H” is displayed) remain even
after re-adjustment, it is necessary to check the
RF circuit of the URX-M1.
11. Indication on the LCD (URX-M1, Tuner [1]) appears
as follows :
LCD :

2-33UWP Series
A C3 L
(A C3 L)
B C1 L
(B C1 L)
B C2 L
(B C2 L)
20. Check first that indication “L” of “BC1L” on the LCD
the “SET” button of the URX-M1.
as follows :
LCD :
22. Set the FREQUENCY (carrier frequency) of the signal
generator as follows :
U6264 model ; 777.000 MHz
U6668 model ; 794.000 MHz
as follows :
LCD :
U6264 model ; 781.000 MHz
U6668 model ; 805.000 MHz
U6264 model ; 770.000 MHz
U6668 model ; 794.000 MHz
the “SET ” button of the URX-M1.
as follows :
LCD :
U6264 model ; 781.000 MHz
U6668 model ; 805.000 MHz
18. Indication on LCD (URX-M1, Tuner [1]) appears as
follows :
LCD :
U6264 model ; 759.000 MHz
U6668 model ; 783.000 MHz
B C3 L
(B C3 L)

2-34 UWP Series
1 2 3 4 5 6
ANTENNA
A IN ANTENNA B IN
TUNER
OUTPUT 1
600 Z
balance
input
Oscilloscope
Signal
generator
DC cut fixture
MB-806A
Tuner slot
DC cut fixture
Audio
analyzerMIC amp
Function
generator
5. Overall Characteristics Check
Perform the overall characteristics check according to the
following procedure.
Procedure
↓
(2) S/N Check
↓
↓
(4) Distortion Ration Check
↓
(5) RF Squelch Level/RF Indicator Check
↓
(6) RF Level Indicator Check
↓
(7) AF Level Indicator/AF Indicator Check
↓
(8) Tone Squelch Check
Equipment and Tools
. Signal generator
. Audio analyzer
. Mic amp (Noise meter) with A-weighted filter
. Oscilloscope
. DC current meter
. DC cut fixture (See “How to make DC cut fixture” on
page 2-27.)
Connection
CE67
(CE67)
. CE67 model
AU66
(AU66)
. AU66 model
CE62
(CE62)
. CE62 model
U68
(U68)
. U6668 model
U62
(U62)
. U6264 model
as follows :
LCD :
28. Adjustment is completed. (Normal operation mode)

2-35UWP Series
Procedure
n
The checking procedures describe that the URX-M1 (to be
adjusted) is installed into the Tuner [1] slot on the MB-806A.
1. Set the URX-M1/MB-806A as follows :
. URX-M1 Front panel (Tuner [1])
Channel setting :
U6264 model;Group 03, 6401 channel (770.125 MHz)
CE62 model ;Group 04, 6332 channel (810.000 MHz)
AU model ;Group 12, 6701 channel (799.250 MHz)
ATT (ANTENNA A, B) switch :0 dB
OUTPUT LEVEL switch : LINE (_20 dBm)
4. Set the signal generator as follows :
U6264 model ; 770.125 MHz
U6668 model ; 794.125 MHz
RF OUTPUT (Output level) : 60 dBuVEMF (= _53 dBm)
MODULATION (Modulation frequency) : 100 Hz
5. Check that the TUNER OUTPUT 1 connector output
level is _20 dBm ±1.0 dB (at 600 Z loaded).
6. Connect the audio analyzer to the MIX OUTPUT con-
nector via MIC amp.
7. Check that the MIX OUTPUT connector output level is
_20 dBm ±1.0 dB (at 600 Z loaded).
8. Set the MIX OUTPUT LEVEL switch is _58 dBm (MIC).
9. Check that the TUNER OUTPUT 1 connector output
level is _58 dBm ±1.5 dB (at 600 Z loaded).
10. Check that the MIX OUTPUT connector output level is
_58 dBm ±1.5 dB (at 600 Z loaded).
12. Perform the procedures 4 to 10 above.
n
The output level difference between the ANTENNA A
IN side and the ANTENNA B IN side should be within
0.5 dB.
(2) S/N Check
Procedure
n
Channel setting :
U6264 model ; 770.125 MHz
U6668 model ; 794.125 MHz
MODULATION (Modulation frequency) : 1 kHz
5. Read the output level of the TUNER OUTPUT 1 con-
nector (Audio analyzer indication level).
This level is specified to be 0 dB.
6. Turn OFF the MODULATION (modulation frequency)
of the signal generator (No modulation).
7. Check that output level of the TUNER OUTPUT 1 is 62
dB or more (S/N is _62 dB or less with A-weighted fil-
ter) as compared with the level of procedure 5 above.
8. Change the RF OUTPUT (output level) of the signal
generator as shown below.
RF OUTPUT (output level) : 15 dBuVEMF (= _98 dBm)

2-36 UWP Series
Procedure
n
Channel setting :
U6264 model ; 770.125 MHz
U6668 model ; 794.125 MHz
5. Read the output level of the TUNER OUTPUT 1
(indication of the audio analyzer).
This level is specified to be 0 dB.
9. Check that output level of the TUNER OUTPUT 1 is 36
dB or more (S/N is _36 dB or less with A-weighted fil-
ter) as compared with the level of procedure 5 above.
10. Change the RF OUTPUT (output level) of the signal
generator as shown below.
RF OUTPUT (output level) : 60 dBuVEMF (=_53 dBm)
11. Set the audio analyzer to the distortion mode.
12. Check that distortion ratio is _40 dB or less (1 % or
less) with A-weighted.
15. Set the channel and FREQUENCY (carrier frequency)
of the signal generator as shown 1 and 2 below.
Perform the procedures 3 to 14 above, for each channel
setting (1 and 2).
1 Channel setting :
U6264 model ; Group 01, 6201 channel (758.125 MHz)
U6668 model ; Group 01, 6601 channel (782.125 MHz)
Signal generator setting :
FREQUENCY (carrier frequency)
U6264 model; 758.125 MHz
U6668 model; 782.125 MHz
2 Channel setting :
Signal generator setting:
FREQUENCY (carrier frequency):
U6264 model; 781.875 MHz
U6668 model; 805.875 MHz

2-37UWP Series
(4) Distortion Ratio Check
Procedure
n
Channel setting :
U6264 model; 770.125 MHz
U6668 model; 794.125 MHz
5. Set the audio analyzer to the distortion mode, and check
that the distortion ratio is less than 0.8 %.
6. Change the MODULATION (modulation frequency) of
the signal generator as shown below.
MODULATION (modulation frequency) : 10 kHz
Check that the distortion ratio is less than 4 %.
n
10 kHz modulation frequency must be set by using the
function generator.
6. Change the MODULATION (modulation frequency) of
the signal generator as follows, and check the output
level of the OUTPUT connector is set also as follows.
n
40 Hz and 18 kHz modulation frequency must be set by
using the function generator.
MODULATION frequency TUNER OUTPUT 1
of signal generator connector output level
40 Hz +2.0 ±1.0 dB
18 kHz _34.0 ±2.5 dB
8. Perform the procedures 4 to 6.

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