Sony WRR-862A User manual

UHF SYNTHESIZED DUAL DIVERSITY TUNER
WRR-862A
WRR-862B
SERVICE MANUAL
1st Edition (Revised 2)

WRR-862A/862B
!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.

1
WRR-862A/862B
Table of Contents
1. Operating Instructions.....................................................................1-1
2. Service Overview
2-1. Disassembly ................................................................................................2-1
2-2. Notes on Replacing the Parts ......................................................................2-4
2-2. Unleaded Solder ..........................................................................................2-4
3. Electrical Alignment
3-1. Preparation ..................................................................................................3-1
3-1-1. Equipment and Tools .................................................................3-1
3-1-2. Notes on Adjustment ..................................................................3-2
3-2. Adjustment and Checking ...........................................................................3-2
3-2-1. Current Consumption Check ......................................................3-3
3-2-2. Reference Frequency (4 MHz oscillation frequency)
Adjustment .................................................................................3-4
3-2-3. Output Level Adjustment ...........................................................3-4
3-2-4. RF Squelch Level and RF Level Indicator Adjustment .............3-5
3-2-5. S/N Checking .............................................................................3-8
3-2-6. Distortion Ratio Check.............................................................3-10
3-2-7. Frequency Characteristic Check ..............................................3-11
3-2-8. RF Squelch Level Check..........................................................3-12
3-2-9. RF Level Indicator Check ........................................................3-14
3-2-10. AF level Indicator/AF Indicator Check....................................3-15
3-2-11. Tone Squelch Check ................................................................3-16
3-2-12. TX BATT Transmitter (Battery) Indicator Check ...................3-17
4. Spare Parts
4-1. Notes on Repair Parts..................................................................................4-1
4-2. Exploded Views and Parts List ...................................................................4-2
4-3. Electrical Parts List .....................................................................................4-4
4-4. Supplied Accessories ................................................................................4-30
5. Semiconductor Pin Assignments.............................................5-1
6. Block Diagram.......................................................................................6-1

2WRR-862A/862B
7. Board Layout
CN-2168 ......................................................................................................7-1
CN-2287 ......................................................................................................7-1
CN-2176 ......................................................................................................7-2
CN-2288 ......................................................................................................7-2
RX-60 ..........................................................................................................7-3
RX-74 ..........................................................................................................7-4
AU-276........................................................................................................7-5
AU-285........................................................................................................7-6
8. Schematic Diagrams
RX-60 ..........................................................................................................8-2
CN-2176 ......................................................................................................8-2
RX-74 ..........................................................................................................8-8
CN-2288 ......................................................................................................8-8
AU-276......................................................................................................8-13
CN-2168 ....................................................................................................8-13
AU-285......................................................................................................8-15
CN-2287 ....................................................................................................8-15

1-1
WRR-862A/862B
Section 1
Operating Instructions Reprinted from the
operating instructions
3-205-401-12 (1)
WRR-862A/WRR-862B
UHF Synthesized
Dual Diversity Tuner
2000 Sony Corporation
Operating Instructions GB
II
Declaration of Conformity
Trade Name: SONY
Model No.: WRR-862B
Responsible Party: Sony Electronics Inc.
Address: 1 Sony Drive, Park Ridge,
NJ.07656 U.S.A.
Telephone No.: 201-930-6972
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired
operation.
Owner’s Record
The model and serial numbers are located at the rear of the
unit. Record the serial number in the space provided below.
Refer to these numbers whenever you call upon your Sony
dealer regarding this product.
Model No. WRR-862A/862B Serial No.
Notice for customers in the U.S.A.
You are cautioned that any changes or modifications not
expressly approved in this manual could void your authority
to operate this equipment.
If you have any questions about this product, you
may call:
Sony's Business Information Center (BIC)
at 1-800-686-SONY (7669)
or Write to:
Sony Customer Information Services Center
6900-29 Daniels Parkway, PMB 330 Fort Myers,
Florida 33912
III
Notice for customers in Canada:
Use of Sony wireless devices is regulated by the Industry
Canada as described in their Radio Standard Specification
RSS-123.
A licence is normally required. The local district office of
Industry Canada should therefore be contacted. When the
operation of the device is within the broadcast band, the
licence is issued on no-interference, no-protection basis with
respect to broadcast signals.
Operation of this device is subject to the following two
conditions: (1) this device may not cause interference, and
(2) this device must accept any interference, including
interference that may cause undesired operation of the
device.
Avis pour les clients au Canada:
L’usage des appareils sans-fil Sony est réglé par l’Industrie
Canada comme décrit dans leur Cahier des Normes
Radioélectriques CNR-123.
Une licence est normalement requise. Le bureau de
l’Industrie Canada doit être contacté. Lorsque l’opération de
l’appareil est dans les limites de la bande de radiodiffusion,
la licence est émanée sur la base de non-interférence, non-
protection avec les signaux de radiodiffusion.
L’utilisation de cet appareil est soumise aux deux conditions
suivantes : (1) cet appareil ne peut causer d’interférences, et
(2) cet appareil doit accepter toutes les interférences, y
compris les interférences capables de provoquer un
fonctionnement indésirable de l’appareil.
IV
Notice for customers in Europe
Spécifications particulières pour les consommateurs européens
Hinweis für Kunden in Europa
Aviso para los usuarios en Europa
U.K. 854.125 - 862 MHz
Turkey 854.125 - 862 MHz
Spain 841.250, 841.750, 842.250, 842.750 MHz
843.250, 848.750, 849.250, 849.750 MHz
850.250, 850.750, 851.250, 851.750 MHz
Germany 798 - 822 MHz
Norway 800 - 820 MHz
Luxembourg 800 - 830 MHz, 854.125 - 862 MHz
Belgium 854.125 - 862 MHz
Denmark 800 - 820 MHz
France 470 - 830 MHz
Greece 800 - 820 MHz
Ireland 800 - 820 MHz
Italy 800 - 820 MHz
Portugal 800 - 820 MHz
Sweden 800 - 820 MHz
Switzerland 800 - 820 MHz
Finland 800 - 814 MHz
Iceland 800 - 814 MHz
Austria 774 - 790 MHz
Netherland 774 - 782 MHz
Hereby, Sony Corporation, declares that this WRR-862B is
in compliance with the essential requirements and other
relevant provisions of Directive 1999/5/EC.
Sony Corporation déclare par la présente que ce WRR-862B
est conforme aux exigences fondamentales et aux autres
dispositions applicables de la Directive 1999/5/CE.
Hiermit erklärt die Sony Corporation, daßdas Modell
WRR-862B die grundlegenden Anforderungen und sonstigen
relevanten Bestimmungen der Richtlinie 1999/5/EU erfüllt.
Por la presente, Sony Corporation, declara que este
WRR-862B cumple con los requisitos esenciales y otras
disposiciones pertinentes de la Directiva 1999/5/CE.

1-2 WRR-862A/862B
1
(GB)
Precautions
English Table of Contents
•
The unit is designed for use in ambient temperature range
of 0°C to 50°C (32°F to 122°F).
•
Do not place the unit on or near heat sources, such as
lighting equipment, power amplifiers, or in a place subject
to direct sunlight or excessive moisture. In such places,
the external finish or internal parts of the unit may be
damaged.
•
If the unit is used in a very humid or dusty place or in a
place subject to an active or corrosive gas, clean its
surface as well as the connectors with a dry, soft cloth
soon after use.
Lengthy use of the unit in such places or not cleaning it
after its use in such places may shorten its life.
•
When cleaning the unit, never use organic solvents such
as thinners or benzine, which will damage the finish of the
unit.
•
The unit has been factory adjusted precisely. Do not
tamper with its internal parts or attempt to repair it.
Precautions ......................................................................... 1
Overview............................................................................. 2
Features .......................................................................... 2
Parts Identification ............................................................ 3
Power Supply ..................................................................... 6
Settings................................................................................ 7
Wireless Channel Selection ........................................... 7
Setting the Squelch Level ............................................ 10
Resetting the Accumulated Time Indication ............... 11
Selecting the Backlight Mode...................................... 12
Error Messages ................................................................ 12
Specifications.................................................................... 13
Appendix .......................................................................... 15
Connections ................................................................. 15
Attaching to a Camcorder ............................................ 15
2 (GB)
WRR-862A
Model available in Australia: 792 to 806 MHz, TV channels 66 to 67
WRR-862B
Model available in USA: 470 to 806 MHz, TV channels 14 to 69 (14
frequency band, divided into 24 MHz range. All 14 frequency bands
may not be available in some areas.)
Model available in Europe: 470 to 862 MHz, TV channels 21 to 69 (17
frequency band, divided into 24 MHz range. All 17 frequency bands
may not be available in some areas.)
Compact, lightweight and easy to mount on Sony
camcorders
The WRR-862A/862B is extremely compact and
lightweight, housing in the rugged, die-cast magnesium
case. It is easily mounted on Sony camcorders.
Preprogrammed wireless channel plans for simultaneous
multi channel operation
The WRR-862A/862B has many preprogrammed channel
groups, meaning combination of wireless channels to permit
simultaneous operation of multiple channels without
intermodulation.
See “Wireless Microphone System Frequency List” supplied
with this manual.
Extensive information by the LEDs and LCD display
The LEDs indicate each channel RF input level (green/ red
indication), diversity reception status, and transmitter
battery alarm. The LCD display for each tuner indicates the
Overview
The WRR-862A/862B is a highly reliable diversity tuner for
the Sony UHF wireless microphone system to be used for
broadcast or movie production purposes.
This tuner is suitable for Electronic News Gathering (ENG)
and Electronic Field Production (EFP).
The microphone/transmitter and tuners of the wireless
microphone system are classified by frequency band.
In building a UHF wireless microphone system, be sure to
combine a microphone/transmitter and a tuner having the
same wireless channel (frequency).
Features
Dual Diversity Tuner
Despite of its compact design, the WRR-862A/862B
simultaneously receives two signal channels. A space
diversity system is employed on both channels to eliminate
signal dropout and provide stable reception. Two SMC9-4S
(Sony 4 pin) audio output connectors are provided on the
top panel.
Wide Operating Frequency ranges
The WRR-862A operates over a 14 MHz frequency band
within the range of 792 MHz to 806 MHz (model available
in Australia) , while the WRR-862B operates over a 24 MHz
frequency band between 470 MHz to 806 MHz (model
available in U.S.A.), or 470 MHz to 862 MHz (model
available in Europe).
3
(GB)
Parts Identification
operating channel/frequency, AF output level, RF input
level, battery status of the tuner, and the accumulated
operating time.
Long operating time
Approximate five hours of continuous operation is provided
by using four LR6 (size AA) alkaline batteries. The WRR-
862A/862B can also be operated on the external power from
Sony camcorders via the supplied DC cable.
Switchable RF squelch
The RF squelch can be easily turned ON or off with the
panel button. The RF squelch level is selectable from 5 dBµ,
10 dBµand 15 dBµ.
Output monitoring
Monitoring of the tuner 1, the tuner 2, or mixed 1 and 2
output is selectable. The monitor volume is adjustable with
a knob.
Overview
qg
DC 12V IN connector
1
ANT a/b connectors
2
OUTPUT 1/2 (BAL)
connectors
3
MONITOR connector
4
RF indicators
5
TX BATT indicators
8
SQUELCH switch
7
MONITOR volume
6
MONITOR switch
9
Display section
qd CONTROL switch
qs
MODE button
qa
SET button
0
+/–buttons
qf
POWER switch
Battery holder
4 (GB)
Parts Identification
the squelch level setting.
When the squelch level is set to 5 dBµ;
On in green: RF input is more than 15 dBµ.
On in red: RF input is between 5 dBµand 15 dBµ.
Off: RF input is less than 5 dBµ.
When the squelch level is set to 10 dBµ;
On in green: RF input is more than 20 dBµ.
On in red: RF input is between 10 dBµand 20 dBµ.
Off: RF input is less than 10 dBµ.
When the squelch level is set to 15 dBµ;
On in green: RF input is more than 25 dBµ.
On in red: RF input is between 15 dBµand 25 dBµ.
Off: RF input is less than 15 dBµ.
5TX BATT (transmitter battery) indicators
Show the battery conditions of the two wireless microphone
transmitters independently. The indicators start flashing
about one hour before the transmitter batteries go flat.
6MONITOR switch
Select the tuner to monitor. The “1+2”position allows to
monitor the mixed output of both tuners.
7MONITOR volume
Turn to adjust the monitoring level through headphones.
8SQUELCH switch
In ordinary use, set the switch to ON, and the noise and
signal interference will be eliminated when the tuner is in
1ANT (antenna) a/b connectors
Connect the antennas supplied to both ANT a/b connectors.
Note
Be sure to connect two antennas to these connectors, even
when you use one tuner, to make the diversity reception
properly.
2OUTPUT 1/2 (BAL) connectors
The OUTPUT 1 connector supplies audio signal output
from tuner 1, and the OUTPUT 2 connector supplies the
output from tuner 2.
Connect these connectors to the microphone input
connector of a camcorder, mixer, or tape recorder by using
the supplied cable.
3MONITOR connector
To monitor the tuner output, connect the headphones,
equipped with a 3.5 mm (
5
/
32 inch) dia stereo mini jack.
Use either of stereo or monaural headphones. Select the
tuner to be monitored with the MONITOR switch, and
adjust the monitor level with the MONITOR volume.
4RF (radio frequency) indicators
Indicate the strength of the RF input signal and the
receiving antenna for diversity reception of each tuner; the
left pair is for the tuner 1, and the right pair is for the tuner
2.
The indication color shows the strength of the RF input
signal. The indicated signal level changes corresponding to

1-3
WRR-862A/862B
5
(GB)
CGP/CH (group/channel) indication
Shows the receiving channel group and channel number.
Each time you press the MODE button the group/channel
indication changes to the frequency, squelch level,
accumulated time of battery use and backlight mode
indications.
For each item setting, see “Settings" from page 7 to 12.
DRF (radio frequency) indications
The number of dots shows the RF input level as below.
Four dots on: more than 35 dBµ
Three dots on: between 25 dBµand 35 dBµ
Two dots on: between 15 dBµand 25 dBµ
One dot on: between 5 dBµand 15 dBµ
No dot: less than 5 dBµ
signal reception stand-by mode. Set to OFF to search outside
noise or a radio wave which may disrupt the transmission.
Note
If you turn off the SQUELCH switch when the tuner is in
stand-by condition for signal receiving or when the RF input
level is low, noise may be heard or the connected device or
speakers may be damaged. Be sure to operate this switch
only after minimizing the input of the connected device.
See “Setting the Squelch Level”on page 10.
9Display section
Shows the status of the tuner; the left display shows the
tuner 1, and the right shows the tuner 2.
For details of each indication, see Ato D.
AAF (audio frequency) indication
Lights when the output audio signal is over the reference
level.
BBATT (battery) indication
Displays the status of the batteries of this tuner.
See “Battery indication”on page 6.
Group/channel Frequency Squelch level
Accumulated time
of battery use
Group/channel and frequency indications show those of
the U66 model as an example
Backlight mode
GP
AFRF BATT
CH GP
AFRF BATT
CH
A
B
C
D
6 (GB)
Power Supply
Installing the batteries
The tuner can operate on four LR6 (size AA) alkaline
batteries continuously for about 5 hours at 25°C (77 °F).
1
Slide the battery-holder catches inward to take out the
battery holder.
2
Match the polarities and insert the batteries.
3
Set the battery holder in the original position.
Confirm that both catches on the holder are locked.
Battery indication
When you turn the power on, the battery status of this unit
appears in the BATT indication on the display section.
Note
The indication may be incorrect if the batteries are not new
when installed. If you plan to use the tuner for a long
period, it is best to replace the batteries with new ones.
0+ (+ selection) / –(–selection/reset) buttons
When setting the transmission channel, frequency, squelch
level and backlight mode, press these buttons to change its
contents. The “–” button resets the accumulated time
indication to “00:00”.
qa SET button
Press to set and fix the item on the display.
qs MODE button
Press to select the item shown on the display.
qd CONTROL switch
Select the tuner to be set.
qf POWER switch
Turns the power of the tuner ON or OFF.
qg DC 12V IN connector
For external power operation, connect to an external power
supply (DC 10 V to 17 V) of a camcorder using the supplied
power cable.
For connecting the antennas, output cables and DC power
cable and attaching the unit to a camcorder, see
“Appendix”on page 15.
Four Alkaline batteries LR6 (sizeAA)
Parts Identification
7
(GB)
Notes on batteries
•
Use new alkaline batteries.
•
Do not use different types of batteries together.
•
Always replace the four batteries together.
•
The batteries are not rechargeable.
•
Be careful to install the batteries with the correct polarity.
•
When not using the tuner for a long period, remove the
batteries to avoid leakage. If the batteries do leak, clean all
leakage from the battery holder case and the unit. Leakage
left in the holder case and the unit may cause poor battery
contact. If there seems to be poor battery contact, consult
your Sony dealer.
External power operation
To operate on an external power supply (DC 10 V to 17 V),
connect the DC 12V IN connector to the DC OUT connector
of a camcorder using the power cable supplied. When the
external power is supplied, the tuner functions regardless of
the built-in batteries.
3
4,6,8
5,7
2
1
OFF
GP
AFRF BATT
CH GP
AFRF BATT
CH
ON 1+2
A
TX BATT
BRF
12
OFF ON
CONTROL
SQUELCH MONITOR
POWER
21
MODE SET
ABRF
Settings
To set the tuner in Setting Mode, press the SET button. The
indication on the display starts to flash waiting for you to
press the +/–buttons to change the contents on the display.
The Setting Mode is automatically cancelled if no buttons
are pressed for 30 seconds while the indication flashes.
Wireless Channel Selection
Note
Noise may occur when the power is turned on or off. Be
sure to turn down the input level of the connected equipment
before operating the POWER switch.
Good
1234
BATT
indication
Lights Lights Lights
Less than
50% charge
BATT
condition
Flashes
Less than
20% charge Almost
exhausted
8 (GB)
Settings
1Set the POWER switch to ON.
The display shows the same status as before the tuner
was last turned off.
2Set the CONTROL switch to “1”or “2”.
The tuner to be set is selected.
If the group name and channel number is shown on the
display, skip step 3and proceed with step 4.
3Press the MODE button until the group and channel
number appear on the display.
4Press the SET button.
The group indication starts flashing.
5Press the + or –button to select the desired group.
Pressing the + button cyclically changes the group in the
following order. Pressing the –button changes it in the
reverse order.
If you hold the button down, the group will continuously
change.
Group setting
Display example for U66 model
Model available in USA
Model available in Europe (CE21)
Model available in Australia

1-4 WRR-862A/862B
9
(GB)
6
When the desired group appears, press the SET button
again.
The group selected is fixed.
The tuner now enters the wireless channel setting mode,
and both of the TV channel number and 2-digit number
flash on the display.
7
Press the + or –button to select the desired wireless
channel.
The wireless channels change in the order listed on the
table of the group on the “Wireless Microphone System
Frequency List”supplied with this manual.
8
When the desired wireless channel appears, press the
SET button.
The display stops flashing and the selected group and
wireless channel are now stored in memory.
Display example for U66 model
Channel setting
To select the channel by frequency indication
1
Turn on the unit, select the tuner to be set.
2
Press the MODE button until the frequency indication
appears.
3
Press the SET button.
The frequency indication starts flashing.
4
Press the + or –button to select the desired channel
frequency.
5
When the desired frequency appears, press the SET
button.
The display stops flashing and the selected wireless
channel is now stored in memory.
If noise is heard
Depending on the environment where the system is installed,
outside noise or radio wave may disrupt the transmission of
certain channels.
To select a channel under this circumstance, turn off the
wireless microphone or transmitter. Then select a channel at
When the group 00 is selected for U66 model
Display example for U66 model
10
(GB)
Settings
other. In such a case, keep a enough distance to ensure
the proper performance of the unit.
•When operating two or more UHF wireless microphone
systems using channels in different groups, ensure that the
systems are at least 100 m (330 feet) apart from each
other. (The same applies also when using channels in a
group if the different UHF wireless microphone systems
are installed where they are within sight of each other.)
Setting the Squelch Level
You can eliminate the noise and signal interference which
may occur in reception stand-by mode. Select a squelch
level from 5 dBµ,10 dBµor 15 dBµ.The factory preset
level is 10 dBµ.To obtain a wide service area, set this to
5 dBµ.When using the tuner in a multi-channel system or
when you want to receive noise free audio input all the time,
set it to 15 dBµ.
1Press the MODE button until the squelch level appears.
2Press the SET button.
The squelch level indication starts flashing.
which the RF indicator is off. (A channel free from noise or
radio wave interference is selected.) Set the same channel on
the microphone or transmitter.
Notes
•
Do not remove the batteries during group and wireless
channel selection. If they are inadvertently removed, re-
insert them immediately and repeat the steps on pages 7 to
9 from the beginning.
•
Make sure that the channel selected is the same as that
selected on the transmitter used in the same system.
•
Be sure to set tuners 1 and 2 to different channels.
•
Depending on the noise or interference conditions, the
selectable channels may not necessarily all be usable. If
necessary, you can determine the usable channels by
stepping the channel selection through a number of
channels on the tuner with the microphone/transmitter set
to OFF. Those channels on which the RF indicator of the
tuner does not light are usable.
•
If there is a TV broadcasting station near by, do not use
the station's channel.
•
The unit may not operate correctly if it is turned on again
immediately after turning off the power while in setting
mode. Pause for a few seconds or more before turning on
the power again.
•
When operating the unit with one transmitter (for
example, using tuner 1 for reception, and leaving tuner 2
unused), noise or audio signals may occur on the unused
tuner, if the tuner and the transmitter are too close to each
Squelch level
11
(GB)
3
Press the + or –button to select the desired level.
4
When the desired level appears, press the SET button.
The display stops flashing and the selected level is now
stored in memory.
Squelch functions
When the SQUELCH switch is set to ON, the following functions
work in combination.
(1) Squelching by RF input level
As sufficient S/N for the audio output may not be obtained if no RF
signal is received or the RF input level is low, the audio output is
squelched when the RF input level falls below the squelch level
selected.
(2) Tone squelch
The audio output is obtained only when the unit receives an RF
signal which includes a specified tone signal. The audio output is
squelched to eliminate noise which may be heard when the
transmitter is turned on/off or the unit receives an interference RF
signal.
(3) Noise squelch
The audio output is squelched to eliminate noise which may be
heard when there is such excessive interference RF signal that the
tone squelch does not work.
Accumulated time of
battery use
Resetting the Accumulated Time Indication
The time indication accumulates time in hours and minutes
when the WRR-862A/862B is on.
Reset the indication to “00:00”whenever you replace the
batteries so that it can display the running time of the
batteries.
1Press the MODE button until the accumulated time
appears.
2Press the SET button.
3Press the –button.
The time indication resets to “00:00.”
While you see “00:00”is flashing, you can go back to
previous value by pressing the + button.
4Press the SET button.
12
(GB)
Error Messages
Backlight mode
Selecting the Backlight Mode
You can select the backlight mode of the display.
1Press the MODE button until the backlight mode appears.
2Press the SET button.
The backlight indication starts flashing.
3Press the + or –button to select the desired mode.
BL OFF : Lights off all the time
BL ON : Lights on all the time
BL AT : Lights on when you begin to operate the
tuner. Turns off automatically 15 seconds
after you finish operation.
4When the desired mode appears, press the SET button.
The display stops flashing and the selected mode is now
stored in memory.
When a problem occurs, one of the following error message
may appear on the display.
Messages
ERROR 03
ERROR 11
ERROR 21
ERROR 51
Contents
The battery voltage
exceeds the allowable
value.
An error occurred in
backup memory data.
The PLL synthesized
circuit is in trouble.
Defect of the A/D
converter.
Measures
Use the specified
batteries.
Contact your Sony
dealer.
Settings

1-5
WRR-862A/862B
13
(GB)
Specifications
Tuner section
Type of reception Space diversity
Circuit system Dual conversion superheterodyne
Receiving frequencies Model available in USA:
two frequencies within a 24
MHz frequency band selected
from 470 to 806 MHz
Model available in Europe:
two frequencies within a 24
MHz frequency band selected
from 470 to 862 MHz
Model available in Australia:
two frequencies within 792 to
806 MHz
Local oscillators 1st: Crystal controlled PLL
synthesizer
2nd: Crystal oscillator
Antenna connectors BNC-R (2)
RF input impedance 50 Ω
RF squelch level 5 dBµ/10 dBµ/15 dBµor OFF
selectable
Frequency response 40 Hz to 18 kHz
De-emphasis 50 µs
Selectivity 60 dB or more
(at ±250 kHz detuned)
Spurious rejection ratio 70 dB or more
Image rejection ratio 60 dB or more
Signal-to-noise ratio 30 dB or more at 10 dBµRF input
60 dB or more at 60 dBµRF input
(±5 kHz deviation at 1 kHz
modulation, A-weighted)
Distortion 1% or less
(±40 kHz deviation at 1 kHz
modulation)
Tone squelch frequency 32.768 kHz
Output connectors SMC9-4S (2)
Output level –58 dBm
(±5 kHz deviation at 1 kHz
modulation)
Output impedance 150 Ω, balanced
Monitor connector 3.5 mm (
5
/ 32
inch) dia.
stereo mini jack
General
Power requirements
Batteries: 6 V DC , four
alkaline
batteries LR6 (size AA)
External: 12V DC
Current consumption Batteries: Approx. 230 mA
at 6V DC
External: Approx. 135 mA
at 12 V DC
Battery life 5 hours or more of continuous use
with four Sony LR6 alkaline
batteries at 25°C
.............................................................................................................................................................................................................................................................
0 dBµ= 1 µV
EMF
0 dBm = 0.775 Vrms (600 Ωloaded)
14 (GB)
Operating temperature 0 °C to +50 °C (32 °F to 122 °F)
Storage temperature –20 °C to +60 °C
(–4 °F to +140 °F)
Dimensions 89 ×120 ×29.5 mm (w/h/d)
(3
5
/ 8 ×4
3
/ 4 ×1
3
/ 16
inches)
Mass 400 g (14 oz) including batteries
Supplied accessories
Antennas (2)
Output cables (2)
DC power cable (1)
Mounting plate (1)
Attachment case (1)
Operating instructions (1)
Wireless Microphone System Frequency List (1)
Optional accessory
Mounting bracket (A-8278-057-A)
Design and specifications are subject to change without notice.
Specifications
15
(GB)
When connecting antennas and cables, match the guides of
the male and female connectors.
The DC power cable can be released by pulling out the
connector cover.
Appendix
Antenna
Turn the
connector
cover to
lock.
Output cable DC power cable
Mounting plate supplied
Mounting bracket optional
(A-8278-057-A)
1: NC
2: Hot
3: Cold
4: GND
1: GND
2: NC
3: NC
4: +12V
OUTPUT 1/2 (BAL)
1
2
3
4DC 12V IN 1
2
3
4
When the Sony lithium-ion battery pack BP-L60/L60A is
attached on the camcorder, both the mounting bracket
optional (A-8278-057-A) and the mounting plate supplied
are required. When attaching the Sony nickel-cadmium
battery, use only the supplied mounting plate.
To release the tuner from the mounting plate, push in the
lever on the plate.
Attaching to a Camcorder
Connections
Sony lithium-ion battery pack BP-L60/L60A
Sony Corporation Printed in Japan

2-1
WRR-862A/862B
2-1. Disassembly
Battery case assy
Section 2
Service Overview
Case (Upper)
1
2
Battery case assy
Screw
(DIA. 2.6x24)
Case (upper)
Panel (upper)
Button (4 gangs)
Light guide plate
(2 gangs)
Case (upper) Case insulating
sheet
to page 2-2
to page 2-2

2-2 WRR-862A/862B
AU-276/285 Board/LCD/Knob (ATT) /
SW knob (3P)
Battery spring (MID) /Battery spring (END)
Connector (S) 4P/Coaxial Connector (BNC Type) /
CN-2168/2287 Board/CN-2176/2288 Board
to page 2-3
Knob (ATT)
SW knob (3P)
Rotary shaft
Case (LCD)
LCD
Connection
conductive board
BL plate
AU-276/285
board
+P 1.4x4.5
Bracket (P)
Connector (4p)
Sheet
(spring retainer)
Battery spring
(MID)
Battery spring
(END)
Coaxial connector
(BNC type)
Cushion
(ANT) Unsolder
Unsolder
CN-2176 board
CN-2168/2287
board
Harness
Stereo miniature
S jack
CN-2176/2288
board
Unsolder
+P 2x4
Coaxial connector
(BNC type)
Cushion
(ANT)
+P 2x4Bracket (ANT2)
Connector (S) 4P

2-3
WRR-862A/862B
Partition (Shield) RX-60/74 Board/Case (Lower) /Flat type wire (20 Core) /Coaxial cable Assy
Shield insulating sheet
Partition
(shield)
+B 2x5,
tapping
Flat type wire (20 core)
Coaxial cable
assy
Coaxial cable
assy
RX-60/74 board
Case (lower)
Coaxial cable
assy

2-4 WRR-862A/862B
2-3. 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 recom-
mended 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.
2-2. Notes on Replacing the Parts
n
When replacing the connector and the connected flexible
card wire, use the specified parts.
If unspecified parts are used, the characteristics change and
malfunction occurs. Be sure to use the specified parts for
replacement.
When replacing the connector of the following boards, be
sure to perform the following operation:
1. When replacing the connector (Ref No. CN2701) of
AU-276 or AU-286 board.
.Replace the connector (Ref No. CN2701) with part
number 1-778-648-52.
.Replace the flexible card wire with part number
1-757-587-21.
2. When replacing the connector (Ref No. CN2801) of
AU-276 or AU-286 board.
.Replace the connector (Ref No. CN2801) with part
number 1-778-648-52.
.Replace the flexible card wire with part number
1-757-587-21.
3. When replacing the connector (Ref No. CN102) of
RX-60 or RX-74 board.
.Replace the connector (Ref No. CN102) with part
number 1-778-648-52.
.Replace the flexible card wire with part number
1-757-587-21.
4. When replacing the connector (Ref No. CN402) of
RX-60 or RX-74 board.
.Replace the connector (Ref No. CN402) with part
number 1-778-648-52.
.Replace the flexible card wire with part number
1-757-587-21.

3-1
WRR-862A/862B
Section 3
Electrical Alignment
3-1. Preparation
3-1-1. Equipment and Tools
Equipment
Name Specifications Model name
DC power supply +3.00 ±0.02 Vdc output _
Signal generator Frequency : 100 kHz to 1040 MHz HEWLETT PACKARD 8657A or equivalent
DC volt meter (Multi Meter) Effective digits: 4 digits HEWLETT PACKARD 34401A or equivalent
Audio analyzer Frequency : 20 Hz to 100 kHz HEWLETT PACKARD 8903B or equivalent
Filter(included) : A-weighted filter
Frequency Counter Frequency : 1 Hz to 225 MHz HEWLETT PACKARD 53181A or equivalent
Noise meter Frequency: 10 Hz to 500 kHz MEGURO MN-445B or equivalent
Function generator 32.768 kHz (and 32.782 kHz) HEWLETT PACKARD 8904A or equivalent
signal (sine wave) can be generated.
Adjustment can be 0.1 Hz step the specification.
Mic amp Gain : 0 dB to 70 dB (with A-weighted filter) _
Oscilloscope Frequency: DC to 30 MHz _
Tools
Name Part No. Remarks
AF Output Cable 1-574-041-12 Supplied with WRR-862A/862B
Adjuster (0.4 x 1.3 mm) 7-221-052-81 Screwdriver for adjustment
Connector 4P (Round type) 1-566-425-11 _

3-2 WRR-862A/862B
50 Z
50 Z50 mVOSC
100 dBuVEMF
Adjust the output of
the signal generator
(SSG) so that the
meter reards 50 mV.
50-ohm
termination probe
Signal generator
(SSG)
RF milivoltmeter
(set in 100 mV range)
3-1-2. Notes on Adjustment
The RF level of the input signal (output level of the signal
generator) for adjustment is expressed as open ended
voltage in unit dBuVEMF (0 dBuVEMF = 1uVEMF).
The adjustment is to be performed by calibrating the output
level of the signal generator as shown below.
Calibration method
(1) Connect the RF milli-voltmeter 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 milli-voltmeter reads 50
mV. The level of the output signal from the signal gen-
erator (SSG) when RF milli- voltmeter reads 50 mV
shall be specified as 100 dBuVEMF.
3-2. Adjustment and Checking
This section describes the following adjustments (and
checking) required to satisfy the specifications.
Adjustment and Checking Item
3-2-1. Current Consumption Check
3-2-2. Reference Frequency (4 MHz oscillation frequency)
Adjustment
3-2-3. Output Level Adjustment
3-2-4. RF Squelch Level and RF Level Indicator Adjustment
3-2-5. S/N Checking
3-2-6. Distortion Ratio Check
3-2-7. Frequency Characteristics Check
3-2-8. RF Squelch Level Check
3-2-9. RF Level Indicator Check
3-2-10. AF Level Indicator/AF Indicator Check
3-2-11. Tone Squelch Check
3-2-12. TX BATT Transmitter (Battery) Indicator Check
n
0 dBuVEMF= _113 dBm
(EMF = Electromotive force)
0 dBm = 1 mW at 50 ohm loaded
1. Switch and Control Initial setting
MONITOR control (RV1211) : Minimum position
SQUELCH switch (S1602) : OFF
Channel setting (Tuner 1, 2) :Setting of the channel is to
be perform with the CON-
TROL switch (S1601) the
MODE switch (S1603) ,
SET switch (S1606) , “+”
switch (S1604) and “_”
switch (S1605).
CE21 model : Group 00, 2232 channel (482.000 MHz)
CE33 model : Group 00, 3432 channel (578.000 MHz)
CE62 model : Group 00, 6332 channel (810.000 MHz)
CE67 model : Group 00, 6932 channel (850.000 MHz)
U1416 model : Group 00, 1601 channel (482.125 MHz)
U3032 model : Group 00, 3201 channel (578.125 MHz)
U4244 model : Group 00, 4401 channel (650.125 MHz)
U6264 model : Group 00, 6401 channel (770.125 MHz)
U6668 model : Group 00, 6801 channel (794.125 MHz)
AU66 model : Group 00, 6701 channel (799.250 MHz)

3-3
WRR-862A/862B
2. Adjustment Location
.Remove the case (upper).
.Remove the case (upper) and partition.
3-2-1. Current Consumption Check
Equipment and Tools
DC power supply
DC output voltage : +1.5 Vdc ±0.1 V
DC ammeter
DC volt meter (or Digital multimeter)
Connector 4P (Part No. 1-566-425-11)
Switch and Control Setting
Same as “1. Switch and Control Initial Setting”on page 3-2.
Procedure
(1) Remove the case (upper) from the WRR-862A/862B
unit. (For removal, refer to the Section 2.)
(2) Current Consumption Check during Battery Operation
1. Connect a DC power supply (+6 Vdc ±0.1 V) as
shown in the figure below.
2. Check the level on the DC ammeter.
DC ammeter indication level
(under no-RF signal input and SQUELCH
OFF mode) : 220 mA or less
(3) Current Consumption Check during External Power
Supply Operation
1. Connect a DC power supply (+12 Vdc ±0.1 V) as
shown in the figure below.
2. Check the level on the DC ammeter.
DC ammeter indication level
(under no-RF signal input and SQUELCH
OFF mode) : 125 mA or less
1
1
ANT a
SQUELCH
(S1602)
LCD
(Tuner 1)
CONTROL
(S1601)
POWER
(S1701)
OUTPUT1
(BAL)
OUTPUT2
(BAL)
MONITOR ANT b
MONITOR
(S1201)
LCD
(Tuner 2)
CL1351
RV1211
CT1401
AU-276/285 board
(B side)
1
1
11 11
RX-60/74 board (B side)
RV601
RV611
RV701
RV711
1
1
4
31 2
Pin No.4
DC power
supply DC
ammeter
Pin No.1
To DC
POWER
SUPPLY (+)
+12.0 ±0.1V
(_)
4P connector
Bottom View
+
_
+_
+
_
DC 12V IN
1
1
DC
ammeter DC power
supply
_+
_+
+
_
+6.0 ± 0.1V

3-4 WRR-862A/862B
Signal
generator
Function
generator
AF output cable
OUTPUT1
OUTPUT2
ANT b
Mic amp
Audio
analyzer
(with A-weighted filter)
Oscilloscope
ANT a
4
31 2
Pin No.4
DC power supply DC ammeter
Pin No.1
To DC
POWER
SUPPLY
(+)
+12.0 ±0.1V
(_)
4P connector
Bottom View
+
_
+_
+
_
1
1
11 11
RV611
RV601 RV701
RV711
1
1
Frequency
counter
CL1351 CT1401
AU-276 board (B side)
4
31 2
Pin No.4
DC power
supply DC ammeter
Pin No.1
To DC
POWER
SUPPLY (+)
+12.0 ±0.1V
(_)
4P connector
Bottom View
+
_
+_
+
_
AU-276/285 board
CN1701
CN1801
Frat wire
RX-60/74 board
3-2-2. Reference Frequency (4 MHz
oscillation frequency) Adjustment
Equipment and Tools Required
DC power supply : +12.0 Vdc ±0.1 V
Frequency counter
Adjuster (Part No. 7-221-652-81)
Connector 4P (Part No. 1-566-425-11)
Connection/Adjustment Location
When adjustment is performed, remove the case (upper)
from the WRR-862A/862B unit.
Switch and Control Setting
Same as “1. Switch and Control Initial Setting”on page 3-2.
Procedure
(1) Connect the frequency counter to the CL1351 on the
AU-276/285 board (B side).
(2) Adjustment
Specification :Frequency at CL1351/AU-276 board
(B side) = 4.000 MHz ±60 Hz
Adjustment :1 CT1401/AU-276/285 board (B side)
3-2-3. Output Level Adjustment
Perform this adjustment when the OUTPUT connector
levels deviate from the specification.
Equipment and Tools
DC power supply: +12.0 Vdc ±0.1 V
Audio analyzer (level meter, distortion meter)
Mic amp (Noise meter)
Oscilloscope
AF Output cable (supplied with WRR-862A/862B)
Adjuster (0.4 x1.3 mm) : (Part No. 7-221-652-81)
Connector 4P (Part No. 1-566-425-11)
Preparation
(1) Remove the case (upper) and the partition.
(For removal, refer to the Section 2.)
(2) Connect the two flat wires of the RX-60/74 board to the
CN1701 and CN1801 connectors on the AU-276/285
board. The AU-276/285 and RX-60/74 boards must be
connected electrically as shown below.
Connection/Adjustment Location

3-5
WRR-862A/862B
Switch and Control Setting
Same as “1. Switch and Control Initial Setting”on page 3-2.
Procedure
(1) Connect the audio analyzer to the OUTPUT 1 connec-
tor via MIC amp.
(2) Connect the signal generator to the ANT a connector.
Signal generator setting
FREQUENCY (Carrier frequency)
CE21 model : 482.000MHz
CE33 model : 578.000 MHz
CE62 model : 810.000 MHz
CE67 model : 850.000 MHz
U1416 model : 482.125 MHz
U3032 model : 578.125 MHz
U4244 model : 650.125 MHz
U6264 model : 770.125 MHz
U6668 model : 794.125 MHz
AU66 model : 799.250 MHz
RF OUTPUT (Output level) : 60 dBuVEMF (=_53 dBm)
MODULATION (Modulation frequency) : 1 kHz
DEVIATION (Frequency deviation) : ±5 kHz
(3) Adjustment
Specification :OUTPUT connector output level
(level meter indication level)
= _58.0 dBm ±0.5 dB (at 600 Zloaded)
Adjustment :1RV601/RX-60/74 board (B side)
(4) Connect the signal generator to the ANT b connector.
(5) Adjustment
Specification :OUTPUT connector output level
(level meter indication level)
= _58.0 dBm ±0.5 dB (at 600 Zloaded)
Adjustment :1RV611/RX-60/74 board (B side)
(6) Connect the signal generator to the OUTPUT 2 connector.
(7) Adjustment
Specification :OUTPUT connector output level
(level meter indication level)
= _58.0 dBm ±0.5 dB (at 600 Zloaded)
Adjustment :1RV711/RX-60/74 board (B side)
(8) Connect the signal generator to the ANT a connector.
(3) Adjustment
Specification :OUTPUT connector output level
(level meter indication level)
= _58.0 dBm ±0.5 dB (at 600 Zloaded)
Adjustment :1RV701/RX-60/74 board (B side)
Signal
generator
ANT b
ANT a
4
31 2
Pin No.4
DC power supply DC ammeter
Pin No.1
To DC
POWER
SUPPLY
(+)
+12.0 ±0.1V
(_)
4P connector
DC 12V IN
Bottom View
+
_
+_
+
_
3-2-4. RF Squelch Level and RF Level
Indicator Adjustment
n
Perform this adjustment/check with the case (upper) , parti-
tion and battery case installed.
(Do under the regular use condition).
Perform this adjustment when the Muting levels deviate
from the specification.
This adjustment is performed automatically by the learning
function of the WRR-862A/862B RSSI learning.
Equipment and Tools
DC power supply: +12.0 Vdc ±0.1 V
Signal generator
Connector 4P (Part No. 1-566-425-11)
Connection
Switch and Control Setting
Same as “1. Switch and Control Initial Setting”on page 3-2.
Procedure
Step 1. Tuner 1 Adjustment
(1) Connect the signal generator to the ANT a connector.
(2)
Turn OFF the WRR-862A/862B POWER switch (S501).
(3) Set the CONTROL switch (S1601) to “1”.

3-6 WRR-862A/862B
(A M xx)
xx: about 3D to 58
(Hexadecimal)
(A H xx)
xx: about 3D to 58
(Hexadecimal)
(9) Set the FREQUENCY (Carrier frequency) of the signal
generator as follow:
FREQUENCY (Carrier frequency)
CE21 model : 482.000 MHz
CE33 model : 578.000 MHz
CE62 model : 810.000 MHz
CE67 model : 850.000 MHz
U1416 model : 482.000 MHz
U3032 model : 578.000 MHz
U4244 model : 650.000 MHz
U6264 model : 770.000 MHz
U6668 model : 794.000 MHz
AU66 model : 799.000 MHz
(10)Indication on the LCD (Tuner 1) appears as follows:
LCD:
(11)Make sure that the indication “ERR-06”is not displayed
on the LCD (Tuner 1), and then press the “SET”switch.
(12)Set the FREQUENCY (Carrier frequency) of the signal
generator as follow.
FREQUENCY (Carrier frequency):
CE21 model : 493.000 MHz
CE33 model : 589.000 MHz
CE62 model : 821.000 MHz
CE67 model : 861.000 MHz
U1416 model : 493.000 MHz
U3032 model : 589.000 MHz
U4244 model : 661.000 MHz
U6264 model : 781.000 MHz
U6668 model : 805.000 MHz
AU66 model : 805.000 MHz
(13)Indication on the LCD (Tuner 1) appears as follows:
LCD:
(14)Make sure that the indication “ERR-06”is not displayed
on the LCD (Tuner 1), and then press the “SET”button
on the front panel (Tuner 1).
(15) Connect the signal generator to the ANT b connector.
(LEARN)
(A L xx)
xx: about 3D to 58
(Hexadecimal)
↓
(4) Set the signal generator as follows :
Signal generator setting
FREQUENCY (Carrier frequency)
CE21 model : 471.000 MHz
CE33 model : 567.000 MHz
CE62 model : 799.000 MHz
CE67 model : 839.000 MHz
U1416 model : 471.000 MHz
U3032 model : 567.000 MHz
U4244 model : 639.000 MHz
U6264 model : 759.000 MHz
U6668 model : 783.000 MHz
AU66 model : 793.000 MHz
RF OUTPUT (Output level) :20 dBuV EMF
(=_93 dBm)
MODULATION (Modulation frequency) :
OFF (No modulation)
(5) Turn the power on, and before any indication appears on
the LCD display, simultaneously press the “MODE”,
“+”and “_”buttons and hold them pressed.
(6) Release the three buttons. After the destination indication
“CE62 (CE21, CE33, CE62, CE67, U1416, U3032,
U4244, U6264, U6668 or AU66) ”is displayed, all
indication of LCD (Tuner 1) will be flashed. While all
indication is flashed, set the SQUELCH switch from
OFF to ON, then to OFF again.
(7) Indication on LCD (Tuner 1) appears as follows:
LCD:
(8) Make sure that the indication “ERR-06”is not displayed
on the LCD (Tuner 1) and then press the “SET”switch.
n
If the “ERR-06”indication appears on the LCD
(when the RF input level is lower or higher than the ref-
erence level), perform the following adjustment.
1Check the RF output level and frequency of the sig-
nal generator (perform re-setting if necessary), and
repeat from procedure (1).
2If the above conditions (the “ERR-06”indication
appears) remain even after re-adjustment, it is nec-
essary to check the RF circuit.