Sony Outdoor Storage User manual

SERVICE MANUAL
SRP-X351P
US Model
Canadian Model
POWERED MIXER
RF/
SIGNAL
ECHO/
AUX SEND
PLAYER PLAYER/RECORDER
ØON øOFF
A
B
C
D
ECHO RETURN
MUTING
MIC GROUP BASS
MIN MAX
CLIP PROTECTION
MASTER VOLUME
EMG +45V
+10
+5
0
-5
-15
-25
+10
+5
0
-5
-15
-25
+10
+5
0
-5
-15
-25
ØON øOFF
MIC4
MIC1
RF/
SIGNAL
MIC2
SIGNAL
MIC3
SIGNAL
MIC4
SIGNAL
ST1
SIGNAL
ST2
SIGNAL
ST3
TREBLE
MIN MAX
BALANCE
LR
TABLE OF CONTENTS
1. GENERAL .......................................................................... 5
2. ELECTRICAL ADJUSTMENT ................................. 8
3. DIAGRAMS
3-1. Circuit Boards Location ...................................................... 9
3-2. Block Diagram .................................................................. 10
3-3. Printed Wiring Board – Audio Section – .......................... 11
3-4. Schematic Diagram – Audio Section (1/3) – .................... 13
3-5. Schematic Diagram – Audio Section (2/3) – .................... 15
3-6. Schematic Diagram – Audio Section (3/3) – .................... 17
3-7. Printed Wiring Board – Master Section – ......................... 17
3-8. Schematic Diagram – Master Section – ............................ 18
3-9. Printed Wiring Board
– ANT, IR, LED, MIC4, TUN, VOL Section –................. 19
3-10. Schematic Diagram
– ANT, IR, LED, MIC4, TUN, VOL Section –................. 21
3-11. Printed Wiring Board – Fader Section – ........................... 23
3-12. Schematic Diagram – Fader Section – .............................. 25
3-13. Printed Wiring Board – Mix Section –.............................. 27
3-14. Schematic Diagram – Mix Section (1/2) –........................ 29
3-15. Schematic Diagram – Mix Section (2/2) –........................ 31
3-16. Printed Wiring Board – S-Video Section – ....................... 33
3-17. Schematic Diagram – S-Video Section – .......................... 34
3-18. Printed Wiring Board – Video Section – ........................... 35
3-19. Schematic Diagram – Video Section –.............................. 37
3-20. Printed Wiring Board – Control Section – ........................ 39
3-21. Schematic Diagram – Control Section (1/2) – .................. 41
3-22. Schematic Diagram – Control Section (2/2) – .................. 43
3-23. Printed Wiring Board – Control2 Section – ...................... 45
3-24. Schematic Diagram – Control2 Section – ......................... 46
3-25. Printed Wiring Board – PA, SP, TH1, TH2 Section – ....... 47
3-26. Schematic Diagram – PA, SP, TH1, TH2 Section – .......... 49
3-27. Printed Wiring Board – IND, PS1, PS2, PSW Section – ..51
3-28. Schematic Diagram – IND, PS1, PS2, PSW Section – ..... 53
4. EXPLODEDVIEWS
4-1. Front Panel Section ........................................................... 55
4-2. Chassis Section ................................................................. 56
5. ELECTRICAL PARTS LIST ........................................ 58

SPECIFICATIONS
— 2 —
AUDIO INPUT/OUTPUT SPECIFICATIONS
Name Connector Type Number of channels
Reference Max Input
input outputlevel input output level output impedance
MIC IN (REAR) XLR-3-31 4 -54dBu -24dBu 2.2kΩ
(FRONT) PHONE
ST1 input Phono Jack 1(Stereo) -10dBu +20dBu 20kΩ
ST2 input Phono Jack 1(Stereo) -10dBu +20dBu 20kΩ
ST3 input(A,B,C,D) Phono Jack 4(Stereo) -10dBu +20dBu 20kΩ
Echo return input Phono Jack 1(Stereo) -10dBu +10dBu 20kΩ
Mic group output Phono Jack 1 -10dBu +10dBu 470Ω
Echo send Phono Jack 1 -10dBu +10dBu 470Ω
Master output Phono Jack 1(Stereo) -5dBu +15dBu 470Ω
Rec output Phono Jack 1(Stereo) -10dBu +10dBu 470Ω
Speakers output Screw type 1(Stereo) Rated output 125W + 125W (8Ω1kHz THD 0.1%)
binding terminal 170W + 170W (4Ω1kHz THD 0.1%)
VIDEO INPUT/OUTPUT SPECIFICATIONS
ST3 input(A,B,C,D)
(S-VIDEO) Mini-DIN 4 1Vp-p(Y) 75Ω
(VIDEO) Phono Jack 1Vp-p 75Ω
Master output
Rec output
(S-VIDEO) Mini-DIN 2 1Vp-p(Y) 75Ω
(VIDEO) Phono Jack 1Vp-p 75Ω
CONTROL TERMINAL SPECIFICATIONS
RS-232C terminal D-sub 9 male 1 7 function is controled
CONTROL-S input φ 3.5 jack 1
CONTROL-S output φ 3.5 jack 1 Through out from input
EMG CONTROL Screw type 1 Break contact, 24V signal control (Active "break")
terminal
OTHER TERMINALS
Antenna in BNC 2 DC 9V out 35mA max
+48V power supply MIC 1 to 4 XLR terminals only
ELECTRICAL CHARACTERISTICS
ITEM MEASUREMENT CONDITIONS STANDARD
Frequency response 20 to 20kHz, 1kHz reference, master output +0.5, -1dB
Total harmonic distortion MIC IN-Master output, 1kHz -54dBu input less than 0.05%
ST input -Master output, 1kHz -10dBu input less than 0.01%
Input conversion noise level MIC IN input, 150Ωtermination, IHF-A less than -126dBu
S/N ratio ST input, input short, IHF-A more than 85dB
Residual noise level Master volume 0, IHF-A, Speaker output less than 100µV
Crosstalk 1kHz, between L-R channels less than -60dB
1kHz, between input channels less than -80dB
TONE MIC L.C.F fc=100Hz -12dB/oct
TREBLE 10kHz (shelving type) ±12dB
BASS 60Hz (peaking type) ±12dB
Frequency 50 to 10MHz, reference 3.58MHz +0.5dB, -1dB
Crosstalk 3.58MHz, 1Vp-p less than -50dB
S/N ratio 100kHz, H.P.F, 5MHz, L.P.F more than 65dB
Frequency 50 to 10MHz, reference 3.58MHz +0.5dB, -1dB
Crosstalk 3.58MHz, 1Vp-p less than -50dB
S/N ratio 100kHz, H.P.F, 5MHz, L.P.F more than 65dB
0 dBu = 0.775 V
Power requirement AC 120V 60Hz
Power consumption 4A
Dimensions 482 ×132 ×350 (width/height/depth) mm
not including max protrusion
Mass 15kg
Operating temp. 0°C to 40°C
Storage temp. -20°C to 60°C
Supplied accessories Operating instructions (1)
Remote control (SRP-351RM) (1)
Battery R6 SIZE AA (2)
Recommend accessory UHF antenna AN-820A
Wireless tuner unit WRU-806A
Design and specifications are subject to change without notice.
AUDIO SYSTEM VIDEO
SYSTEM
S-VIDEO

Notes on chip component replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
•Keep the temperature of soldering iron around 270˚C
during repairing.
•Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
•Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by
the manufacturer.
Discard used batteries according to the manufacturer’s instructions.
Dimensions
—3 —
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINEWITH
MARK 0ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
RF/
SIGNAL
ECHO/
AUX SEND
PLAYER PLAYER/RECORDER
ØON øOFF
A
B
C
D
ECHO RETURN
MUTING
MIC GROUP BASS
MIN MAX
CLIP PROTECTION
MASTERVOLUME
EMG +45V
+10
+5
0
-5
-15
-25
+10
+5
0
-5
-15
-25
+10
+5
0
-5
-15
-25
ØON øOFF
MIC4
MIC1
RF/
SIGNAL
MIC2
SIGNAL
MIC3
SIGNAL
MIC4
SIGNAL
ST1
SIGNAL
ST2
SIGNAL
ST3
TREBLE
MIN MAX
BALANCE
LR
336
482
57.2
24 52 350 30
13
238
1328
Unit ; mm

—4 —
SAFETY CHECK-OUT
After correcting the original service problem, perform the
following safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized”knobs,screws,
and all other exposed metal parts forAC leakage. Check leakage as
described below.
LEAKAGE
TheAC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microampers).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of aVOM
or battery-operated AC voltmeter. The “limit”indication is 0.75
V, so analog meters must have an accurate low-voltage scale.
TheSimpson250 and SanwaSH-63Trdareexamples ofapassive
VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
Earth Ground
AC
voltmeter
(0.75V)
1.5kΩ
0.15µF
Fig.A. Using an AC voltmeter to check AC leakage.
To Exposed Metal
Parts on Set

—5 —
This section is extracted from
instruction manual.
SECTION 1
GENERAL
3
Powered Mixer Has 170W+170W(4Ω) Power Amplifier,
and 4 Microphones, 3 Line Inputs.
Built-in power amplifier satisfy a small PA system with
170W+170W (4Ω) output.
Mixing of 4 microphone inputs and 3 stereo (line) inputs
Line input (ST3) can be select 4 AV's one.
Wireless Tuner Unit Can Be Installed
Two UHF SYNTHESIZED TUNER UNIT WRU-806A
can be installed.
Wireless microphone system can be easy to setup.
Wireless Remote Controller supplied
AV input selection, master volume and MUTING can be
controlled.
Simple work of Sony's CD player or MD player, Cassette
Deck can be operated
*
.
*
AV equipment supplied with a wireless remote control or with
Control-S terminal only
Exclusive Input Connectors for Recording Equipment
Line input (ST2) is separated from REC bass to avoid
oscillation comes from flowing of its own signal.
Features
Enough Number of Input/Output Terminals, Various
Function
1The master input to connect equalizer or limiter.
2The ECHO SEND/RETURN terminals for connect
Echo equipment
3The ASSIGN SWITCH cuts the microphone signals
from MASTER OUTPUT.
4Tone control (BASS, TREBLE), BALANCE switch of
stereo/monaural and MUTING button.
5The MIC GROUP knob for centralized control of
summing signal from 4 microphone inputs.
6The CONTROL-S terminal
7The RS-232C REMOTE terminal
8EIA standard 19 inch rackmountable (3U high)
4
Location and Function of Parts
1POWER button
Pressing it turns on the power.
2Wireless remote control sensor
It catches the signal from the infrared wireless remote
control.
If this sensor is covered by something, the remote
control may not function correctly. Place the unit so
that the sensor will be easy to receive the remote
control signal.
3ECHO/AUX SEND knob
It adjusts the mixed signals after each channel fader
and outputs to the ECHO SEND terminal.
4RF/SIGNAL indicators
They light up regardless of the position of channel
fader when sound signal of more than -20dB to the
standard input level are input.
As for MIC 1/MIC 2 would be light up when it
received the signal while the wireless tuner unit is
installed and switch of the microphone is turned on.
5ECHO RETURN switch
When it is ON, the signal from the ECHO RETURN
input are assigned to L/R and Rec Bus.
6MUTING button
Use muting outputs from MASTER OUTPUT,
MASTER INSERT, ECHO SEND, MIC GROUP
OUT, and SPEAKER output terminals.
7CLIP indicator
Too high an output level will cause signal distortion
and make the CLIP indicator light up. When this
happens, lower the MASTER volume or the MIC/
LINE level knob until the indicator turns off. If too
much signal output for an extended period, it may
cause the equipment to overheat or to damage the
speakers.
8PROTECTION indicator
It lights up while the protection circuit is working.
When the power is turned on, it also lights up for few
seconds and it turns off when the amplifier become
stable.
9EMG indicator
It lights up when the unit receives a signal from the
emergency broadcast facilities and turns to standby.
As for EMG, refer to P. 75.
0+48V indicator
It lights up while the Phantom power (DC+48V) is
supplied through the MIC input terminal.
!¡ MASTER VOLUME
Use to adjust the volume of MASTER OUTPUT and
SPEAKER terminal.
!™ MIC 4 terminal
This is input terminal in front for wired microphone.
If the wired microphones are connected to the MIC 4
terminals both at front and rear panel, the front input
is given priority.
Note : When you use the MIC 4, check the balanced
connection.
12 34 5678 !¡ 90
!∞
!£
!™ !¢
Front panel
RF/
SIGNAL
ECHO/
AUX SEND
PLAYER PLAYER/RECORDER
ØON øOFF
A
B
C
D
ECHO RETURN
MUTING
MIC GROUP BASS
MIN MAX
CLIP PROTECTION
MASTER VOLUME
EMG +45V
+10
+5
0
-5
-15
-25
+10
+5
0
-5
-15
-25
+10
+5
0
-5
-15
-25
ØON øOFF
MIC4
MIC1
RF/
SIGNAL
MIC2
SIGNAL
MIC3
SIGNAL
MIC4
SIGNAL
ST1
SIGNAL
ST2
SIGNAL
ST3
TREBLE
MIN MAX
BALANCE
LR
!ª!¶!§ !• @£@™@¡@º
5
!£ MIC 1/MIC 2 fader knobs
Use to adjust the mixing level of MIC 1/MIC 2.
Either the wireless microphone or the wired micro-
phone can be used in MIC 1/MIC 2.
(Refer to page 6 and page 9.)
When the WRU-806A (optional) is put in to the tuner
unit compartment at the rear panel, the wireless
microphone is given priority while it is on.
!¢ MIC 3 fader knob
Use to adjust the mixing level of MIC 3.
Only the wired microphone can be used in MIC 3.
!∞ MIC 4 fader knob
Use to adjust the mixing level of MIC 4.
!§ ST1 fader knob
Use to adjust the mixing level of ST1.
A playback unit will be connected to it mainly.
!¶ ST2 fader knob
Use to adjust the mixing level of ST2.
The sound signal of this channel is not output to the
REC OUTPUT terminal; you can use without being
bothered about oscillation from signal loop.
!ª SELECT buttons
Use to select one of the unit connected to ST3 A to D
input.
S VIDEO and VIDEO signal from the selected input
is directly output to the MASTER OUTPUT and the
REC OUTPUT.
The mixing level of the sound signal can be adjusted
by ST3 fader knob.
@º MIC GROUP knob
Use to adjust the level of the signal after mixing in
MIC 1 to 4 in a lump.
The signal will be output from the MIC GROUP OUT
terminal.
@¡ Bass control knob
Use to adjust low frequency among the sound from
the MASTER OUTPUT or SPEAKER terminal.
@™ TREBLE control knob
Use to adjust high frequency among the sound from
the MASTER OUTPUT or SPEAKER terminal.
@£ BALANCE adjustment knob
Use to adjust the balance of left and right of the sound
from the MASTER OUTPUT or SPEAKER terminal.
Note
When the PROTECTION indicator lights up
The protection circuit triggers and the PROTECTION indicator
lights up in following conditions. In this case, the speaker and
amplifier are protected by cutting output.
•When direct-current voltage appears in the SPEAKER
terminal from a malfunction.
•When rated temperature of amplifier internal heat sink is
exceeded.
•When impedance of the connected speaker is too low, or
when speaker outputs are shorted.
When the above happens, turn off the POWER switch, find
and fix the cause of the problem, and restart.
!• ST3 Fader knob
Use to adjust the level of the signal from AV equip-
ment selected by the SELECT button stated in !ª.
SRP-X351P Recorder/Player
When
recording
OUTPUT
INPUT
INPUT
OUTPUT
REC
Sound signal of
except ST2
ST2
MASTER
×
6
1ANT IN (antenna input) A/B terminals
Use to connect the antenna for wireless tuner. When
installing the tuner unit, connect the optional UHF
antenna AN-820A.
Note
Before locating and connecting the antenna, read carefully the
instructions supplied with the antenna.
Incorrect location of the antenna may cause a bad reception
such as intermittent sounds. If it is not easy to relocate the
antenna after location, check carefully if the performance will
be satisfied with the location.
Use the coaxial cable of impedance 50 ohms/75 ohms (5D-FB,
5C-2V, etc.). The cable can be extended up to about 50 m with
5D-FB, and up to about 25 m with 5C-2V.
2Tuner unit slot (MIC1, MIC2)
These are for installation of the optional wireless
tuner unit WRU-806A. Up to two units can be
installed. (Refer to page 9 and page 10)
Before installation, read carefully also the instructions
of WRU-806A.
3REMOTE terminals
CONTROL S input terminal
Connect to the S output terminal of another equip-
ment.
When this terminal is plugged in, the sensor of this
unit is not functioning.
Input signals are directly output from control S output
terminal.
CONTROL S output terminal
This terminal outputs the signal input from CON-
TROL S input terminal or the sensor.
RS-232C (serial input/output) terminal
This model can be controlled by the external controll
equipment through this terminal using a cross cable.
Terminal : D-sub 9 pin, male,
inch type screw
Electrical specification : Based on RS-232C standard
Recommended cable : Plural leads shielded cable
for data communication
Cable length : 15m or under
For protocols, please consult your dealer.
1234567
0
89 !∞!£!™ !¢
Rear panel
!§
Pin No. Signal Function
1 N.C Not connected
2 RD Received data
3 TD Transmission data
4 ER Data terminal ready
5 SG Signal line grand
6 DR Data set ready
7 RS Transmission request
8 CS Transmission approval
9 N.C Not connected
15
69
!¡
Location and Function of Parts
!¶

—6 —
7
‘’
4MASTER INSERT (Tip: output, Ring:
input, Sleeve: GND)
These are input/output terminals for MASTER
OUTPUT. An external equipment can be inserted
before master volume.
5EMG input terminals
This terminal receives signal from the emergency
broadcast facilities and makes this unit be in standby.
In this case, the EMG indicator on the front panel
lights up.
Select one of following two ways of connection as
follows.
When using the BREAK CONTACT terminal
Remove the short bar and connect the Relay of the
emergency broadcast facilities. When the relay is
contact is breaked, all AUDIO outputs of this unit will
be cut off.
When using the +24V IN terminal
This terminal receives signals of DC24V from the
emergency broadcast facilities.
When DC24V is cut off, all AUDIO outputs of this
unit will be cut off.
8MIC input terminals (1:GND 2:HOT
3:COLD)
This is the input terminals for microphones.
In MIC1 and MIC2, wireless microphone has priority
while the tuner unit is used. (Refer to page 44.)
9+48V button
It supplies the Phantom power (DC+48V) to the MIC
1 - 4 terminals for condenser microphones.
When it is ON, DC+48V is output for the MIC
terminals except for the MIC4 on the front panel.
Notes
•Make sure to turn the MIC fader toward minimum before
connecting or disconnecting any cable or turning the +48
button to ON.
•Make sure to connect a line equipment to ST1 to ST3 inputs.
•When using a microphone powered by +48V and a dynamic
microphone simultaneously, the dynamic microphone may
not show its performance to the full.
6CIRCUIT BREAKER
When over-current flows into the unit, the circuit
breaker cuts the power. In this case, remove the cause
of over-current and reset the breaker by pressing
RESET button.
7SPEAKER output terminals
Connect with the speakers. Connect + of the speaker
to the red terminal and - to the black terminal. Use
the speaker of 4 to 16 impedance.
0ST1/ST2 input terminals
Use them for inputs from audio equipment.
Connect a playback equipment mainly to ST1 and a
record player to ST2.
!¡ ST3 (AV) input terminals
Use them for inputs from AV equipment.
Each of input A to D is selected by the SELECT
button on the front panel.
!™ MASTER OUTPUT terminals
Signal routed through the Master Volume are output
here.
!£ REC OUTPUT terminals
Signal not routed through the tone control (BASS,
TREBLE), BALANCE and Master Volume are output
here.
Video signal is the same as for MASTER OUT signal.
Remove the short bar of the
BREAK CONTACT terminal
BREAK
CONTACT
Relay
‘’ ‘ ’
or
(+24V output)
The emergency broadcast facilities
(+ 24V IN)
8
Remote control
1FUNCTION button
Use to select one of ST3 A to D input.
2CD deck operation buttons
Use to operate the Sony CD deck.
3MD deck operation buttons
Use to operate the Sony MD deck.
4TAPE deck operation buttons (A, B)
Use to operate the Sony TAPE deck.
5MASTER VOLUME operation knob
Use to adjust the master volume level.
6MUTING button
Use to mute the output signal from MASTER OUT-
PUT, MASTER INSERT, ECHO SEND, MIC
GROUP OUTPUT or SPEAKER output terminals.
!¢ ECHO SEND/RETURN terminals
Connect effectors such as reverbrators and delay units
to this terminal.
SEND terminal
This terminal outputs audio signals mixed by ECHO/
AUX SEND knob of MIC1 to MIC4 and ST1 to ST3
in monaural
RETURN terminals
This is an input terminal for signal returned from the
effector. When the ECHO RETURN switch on the
front panel is set to ON, these are assigned to L and to
R.
Adjust the input level using effector's level controller.
!∞ MIC GROUP and ASSIGN switch
MIC GROUP OUTPUT terminal
It outputs signal of which level is adjusted by MIC
GROUP knob.
ASSIGN switch
This is normally on.
When this switch is set to OFF, the microphone signal
for MASTER OUTPUT and SPEAKER terminals are
cut off.
Using this, turn it OFF when a PA system with ceiling
speakers and external power amplifier.
INSERT terminal (Tip: output, Ring: input, Sleeve:
GND)
Use it to connect an external graphic equalizer or a
feedback reducer.
!§ MODE switch
It will be monaural when MASTER INSERT, MAS-
TER OUTPUT and SPEAKER output are set to
MONO.
!¶ POWER cord
Inserting batteries into the remote
AB
C
CD
DISC SKIP
MUTING
MD
TAPE DECK A
TAPE DECK B
MASTER
VOLUME
D
1
2
3
4
5
6
You can control this unit with using the supplied remote.
Insert two R6 (size AA) batteries by matching the + and –
on the batteries. When using the remote, point it at the
remote sensor on the equipment.
When to replace batteries
With normal use, the batteries should last for about six
months. When the remote no longer operates the equip-
ment, replace all the batteries with new ones.
Notes
•Do not leave the remote near an extremely hot or humid
place.
•Do not drop any foreign object into the remote casing,
particularly when replacing the batteries.
•Do not expose the remote sensor to direct sunlight or lighting
apparatuses. Doing so may cause a malfunction.
•If you don't use the remote for an extended period of time,
remove the batteries to avoid possible damage from battery
leakage and corrosion.
Location and Function of Parts
9
Tuner unit
Tuner cover
Installation of The Tuner Unit
1 Turn off the power of this unit.
2 Remove the tuner cover.
3 Check the up and down sides of the tuner unit, and
insert it into the slot.
The upper slot corresponds to MIC1 and the lower slot
to MIC2. (Set the group and channel of the tuner unit
to same as wireless microphone's one.)
NOTICE
To prevent breakdown or injury, do not put your hand
inside of the slot except when you install or remove the
tuner unit.
Insert it deeply into the compart-
ment.
Do not insert or remove the tuner
unit while the power is on. This
may be cause of noise or
malfunction of the connector.
4 Fix the tuner cover.
After installation of the tuner unit, turn on the power
of the unit and turn on the power of the wireless
microphone to check it is receiving. While receiving,
the RF/SIGNAL indicator lights up. Note that the
RF/SIGNAL indicator will not light up when the
setting channel of the microphone is different from
the setting of the tuner unit, or when the microphone
power is consumed.
Notes
Take the following precautions to prevent interference
and noise.
•If there is a TV broadcasting station nearby, to avoid
possible interference from its broadcasting, do not
use that station's channel.
•When simultaneously using two tuners, always set
the tuners to different channels within the same group
(other than group 00).
•Please make a choice of model in accordance with
your area to use picking up an unused TV channel.
•Make sure that the channel selected on the micro-
phone is the same as that selected on the tuner being
used in the same system.
10
RF AF
DISPLAY
GP CH
BATT
GP
AF
GP CH
BATT
CH
+
_
RF
1
13
24
2
3
4
5
7
6
1AF (audio frequency) indicator
2AF (audio frequency) level indications
The indicator lights and the indications appear when
the audio output level is higher than the reference
level.
3BATT (battery) indicator
4BATT (battery) indication
Indicate the condition of the wireless microphone
transmitter batteries. The indicator and indication
appear and start flashing about one hour before the
transmitter batteries go flat.
The time at which flashing begins will depend on the
type of battery used in the transmitter, and its
condition.
5GP/CH (group/channel) indication
Shows the reception channel group and respective
channel number.
Pressing the + button changes this indication to the
frequency indication.
6RF (ratio frequency) level indications
7RF (ratio frequency) indicator
The indicator lights and the indications (dots) appear
when the antenna reception is optimal. Depending on
the RF input level, the number of dots changes.
Please refer to the table Sony 800MHz-band system models frequency range in the Operating Manual of Wireless Micro-
phone or Transmitter.
1GP (group) button
To change the group, press the + or –button while
holding this button down.
2CH (channel) button
To change the channel in a group, press the + or –
button while holding this button down.
3+ button
To go to a higher group or channel, press this button
while holding the GP or CH button.
Press this button changes the indication from GP/CH
to frequency.
4– button
To go to a lower group or channel, press this button
while holding the GP or CH button.

—7 —
14
Troubleshooting
Power will not turned on. •Is the power cord unplugged?
•Is the curcuit breaker working? (See page 7.)
No sound. •Does the EMG indicator turn off? (See pages 4 and 7.)
•Does the PROTECTION indicator turn off? (See page 4.)
No sound is output to MASTER OUTPUT •Has the ASSIGN switch been set to OFF? (See page 8.)
or SPEAKER terminals from microphone. •Has the MIC GROUP knob been set to –∞? (See page 5.)
No sound from wireless microphone. •Is the channels of microphone and tuner unit matching?
And does the RF/SIGNAL indicator light on when the microphone
is turned on? (See page 9.)
•Is the antenna connected correctly?
Sound is heard in monaural. Has the MODE switch been set to STEREO? (See page 8.)
Sound is distorted. Is the CLIP indicator lighting on? (See page 4.)
No sound from MIC4. Has another microphone been connected to MIC4 terminal
on the front panel?(See page 4.)
Wireless remote control does not function. •Has a plug been connected to CONTROL-S input terminal
on the rear panel?(See page 6.)
•Are the remote control batteries dead?(See page 8.)
Signal of the ST2 can not be recorded. Signal from ST2 does not output to REC OUTPUT. (See page 5.)
Printed in Japan

—8 —
SECTION 2
ELECTRICAL ADJUSTMENT
1. Bias Adjustment
Preparation:
Master VOL : MIN
RV601 (602) : MIN
Procedure:
1. Connect a multimeter to the CN601 (605) without a signal.
2. Adjust the RV601 (602) so that a multimeter indicates:
(See the following diagram.)
V = 5mV ± 0.5mV
Adjustment Location:
[PA BOARD]
CN605 RV602
RV601
1
2
CN601 (605)
RV601 (602)
MIN MAX
Polarity
+
–
Terminals
1
2
CN601
1
2
2. DC Offset Confirmation
Procedure:
Confirm that the voltage between “+”and “–” output terminals of
speaker is below.
V = 0 ± 30mV

SRP-X351P
3-2. BLOCK DIAGRAM
— 9 — — 10 —
3-1. CIRCUIT BOARDS LOCATION
SECTION 3
DIAGRAMS
For schematic diagrams
• All capacitors are in µF unless otherwise noted. pF : µµF. 50V or
less are not indicated except for electrolytics and tantalums.
• All resistors except chips are in Ωand 1/4W orlessunlessotherwise
specified.
•f: internal component.
• : panel designation
• : B+ Line
• : B– Line
• : adjustment for repair.
• Voltage is measured with respect to ground under no-signal
conditions.
• Voltages are reference values measured by aVOM (10MΩ/V).
• Signal path.
F: AUDIO
f: VIDEO
• Conditions of measuring voltage
MASTER VOL MIN
MIC GROUP MAX
ECHO SEND – ∞
SELECT A
MIC ASSIGN ON
THIS NOTE IS COMMON FOR WIRING BOARDS
AND SCHEMATIC DIAGRAMS
B+
B–
SP board
S-VIDEO board
VIDEO board
MIC4 board
IR board
CONTROL board
CONTROL2 board
PS2 board
PS1 board
PSW board
FADER board
MIX board
LED board
MASTER board
IND board
TH1 board
PA board
TUN board
TH2 board
AUDIO boar
d
ANT board
VOL board
MONO/STE MODE STEREO
+48V SW OFF
BALANCE/TONE MIDDLE
FADER – ∞
For printed wiring boards
• : parts extracted from the component side.
• : Pattern on the side which is seen.
(Other patterns are not shown.)
• Indication of transistor.
C
Q
These are omitted.
BE
Note:
The components identi-
fied by mark 0or dotted
linewithmark0arecriti-
cal for safety.
Replace only with part
number specified.
Note:
Lescomposantsidentifiés par
une marque 0sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
WRU-806A WIRELESS
+48V
+48V
+48V
+48V
HA
HA
LCF
LCF
RF/Signal IND
MIC GROUP BUS
MIC
GROUP MIC
ASSIGN
SW
MONO STEREO
MODE
TREBLE BASS
BALANCE
MASTER
MASTER INSERT
MASTER OUTPUT REC OUTPUT
REMOTE
CONTROL-S OUT
S-Video Video
-5dBu
L R
S-Video Video
-10dBu
EMG
EMG CONTROL
AC IN
POWER
SW
CIRCUIT BRAKER
L R
L R
SREAKERS OUTPUT 125W+125W 8Ω 170W+170W 4Ω
L R
PROTECTION CLIP
MIC GROUP OUTPUT -10dBu MIC GROUP INSERT -10dBu ECHO SEND -10dBu
ECHO BUS
REC L
REC R
Signal IND
Signal IND Signal IND
Signal IND
ECHO ECHO
MIC 1
-54dBu
MIC 2
-54dBu
MIC 3
-54dBu
MIC 4
-54dBu
ST 1
-10dBu
for Player
ST 2
-10dBu
ST 3 Ach ST 3 Bch
ECHO
RETURN
L
A B C DMute
RECHO
RETURN
ECHO
ECHO ECHO
ECHO
REMOTE
RS-232C
RS-232C Controller
REMOTE
CONTROL S IN
IR
Same as ST3 Ach
Same as MIC1 Same as MIC4
(without phone jack)
Same as ST3 Ach Same as ST3 Ach
ST 3 Cch ST 3 Dch
for Player/
Recorder
CH Fader
CH Fader
-10dBu
S-Video
Video
L
R
L
R
L
R
M
Main Controller

SRP-X351P
— 11 — — 12 —
3-3. PRINTEDWIRING BOARD – AUDIO SECTION –
• Semiconductor Location
Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location
12
A
B
C
D
E
F
G
3 4 5 6 7 8 9 10111213
L
R
L
R
L
R
A
L
R
L
R
L
R
L
R
L
R
L
R
BC D
MIC GROUP
OUT
D001 C-2
D002 C-1
D003 C-2
D004 C-1
D011 C-4
D012 C-3
D013 C-4
D014 C-3
D021 C-4
D022 C-4
D023 C-4
D024 C-4
D031 C-5
D032 C-5
D033 C-5
D034 C-5
D041 B-6
D042 B-6
D043 B-6
D044 B-6
D051 B-7
D052 B-7
D053 B-7
D054 B-6
D061 B-7
D062 B-7
D063 B-7
D064 B-7
D065 B-8
D066 B-8
D067 B-8
D068 B-8
D069 B-8
D070 B-9
D071 B-8
D072 B-8
D073 B-9
D074 B-9
D075 B-9
D076 B-9
D081 B-10
D082 B-10
D083 B-9
D084 B-9
D091 B-10
D092 B-10
D093 B-10
D094 B-10
D101 B-11
D102 B-11
D103 B-10
D104 B-11
D111 B-11
D112 B-11
D113 B-11
D114 B-11
D121 B-12
D122 B-12
D123 C-12
D124 C-12
D130 F-11
D131 E-11
D132 E-11
D133 E-11
D134 E-11
D135 D-9
IC001 E-2
IC002 D-3
IC003 E-2
IC004 E-4
IC005 E-4
IC006 E-5
IC007 D-6
IC008 D-8
IC009 D-9
IC010 D-10
IC011 D-11
IC012 C-12
IC013 E-12
IC014 E-13
IC015 F-12
IC016 F-13
Q001 D-2
Q002 D-1
Q011 C-2
Q012 C-2
Q013 D-2
Q014 C-3
Q015 C-3
Q016 D-3
Q021 D-4
Q022 D-3
Q031 D-4
Q032 D-4
Q041 D-5
Q042 D-5
Q051 C-6
Q052 D-6
Q053 C-6
Q054 C-7
Q061 C-10
Q062 C-9
Q071 C-10
Q072 C-10
Q081 B-11
Q082 C-11
Q083 B-11
Q084 C-11
Q091 B-12
Q101 E-11
Q102 F-11
Q103 F-11
Q104 F-11
Q111 D-9
Q112 D-9
Q113 D-9
Q114 F-1
Q115 F-3
Q116 F-4
Q117 F-5

SRP-X351P
— 13 — — 14 —
3-4. SCHEMATIC DIAGRAM – AUDIO SECTION (1/3) –
6
5
4
3
2
1
D198
D199
CN008
123
5
68
(1/2)
7
(1/2)
(2/2)
5
68
7
3
21
4
123
123
123
(1/2)
(2/2)
2
341
2
341
(1/2)
(2/2)
5
687
5
687
5
687
(1/2)
(2/2)
2
341
2
34
1
(2/2)
32
14
3
2
1
3
1
2
3
2
1
3
2
1
Fig. 1
The components identified by
mark 0or dotted line with mark
0are critical for safety.
Replace only with part number
specified.
Les composants identifiés par
une marque 0sont critiques
pour la sécurité.
Ne les remplacer que par une
pièceportantlenumérospécifié.
Note:
The diodes are connected between
pin-3 and pin-4, and between pin-5
andpin-6ofCN008 from the rearside
of the printed board. (See Fig. 1)

SRP-X351P
— 15 — — 16 —
3-5. SCHEMATIC DIAGRAM – AUDIO SECTION (2/3) –
3
2
1
4
6
5
3
2
1
4
6
5
3
2
1
4
6
5
3
2
1
4
6
5
3
2
1
1
3
2
5
687
3
21
4
(1/2)
(2/2)
(1/2)
(2/2)
(1/2)
(2/2)
8
13
2
8
13
2
4
76
5
4
76
5
4
76
312 645
5
8
13
2
(2/2)
(1/2)

SRP-X351P
— 17 — — 18 —
3-6. SCHEMATIC DIAGRAM – AUDIO SECTION (3/3) –
3-7. PRINTED WIRING BOARD – MASTER SECTION –
3-8. SCHEMATIC DIAGRAM – MASTER SECTION –
5
687
3
24
3
12
2
1
5
6
87
3
2
4
1
3
2
4
1
1
2
13
3
5
687
5
6
87
5
6
87
3
2
4
1
3
2
4
1
5
4
5
46
6
(
1/2
)
(
2/2
)
(
1/2
)
(
2/2
)
(
1/2
)
(
2/2
)
(
1/2
)
(
2/2
)
(
1/2
)
(
2/2
)
3
2
4
5
1
5
6
8
7
3
2
1
4
(1/2)
(2/2)
12
A
B
3456
Ref. No. Location
• Semiconductor
Location
IC701 B-4
IC702 B-4
IC703 B-3
IC704 B-2
IC705 B-1

SRP-X351P
— 19 — — 20 —
3-9. PRINTEDWIRING BOARD – ANT, IR, LED, MIC4,TUN,VOL SECTION –
Ref. No. Location
• Semiconductor
Location
12
A
B
C
D
E
F
G
H
345678910
D1201 B-8
D2001 F-5
IC1201 D-7
IC1202 B-8
IC1203 C-3
IC1801 F-10

SRP-X351P
— 21 — — 22 —
3-10. SCHEMATIC DIAGRAM – ANT, IR, LED, MIC4,TUN,VOL SECTION –
3
1
2
6
4
5
7
8
2
1
2
1
1
3
2
3
9
8
7
3
2
4
5
6
1

SRP-X351P
— 23 — — 24 —
3-11. PRINTED WIRING BOARD – FADER SECTION –
• Semiconductor Location
Ref. No. Location Ref. No. Location Ref. No. Location
12
A
B
C
D
E
F
3456789101112
D1101 B-11
D1102 D-10
D1103 D-10
D1104 E-10
D1105 B-10
D1106 D-10
D1107 C-10
D1108 C-10
D1109 B-9
D1110 D-8
D1111 D-8
D1112 B-7
D1113 D-8
D1114 D-8
D1115 B-6
D1116 D-6
D1117 E-6
D1118 B-5
D1119 D-7
D1120 D-7
D1121 B-4
D1122 D-6
D1123 D-5
IC1101 D-10
IC1102 D-8
IC1103 D-6
IC1104 D-5
Q1101 D-11
Q1102 D-10
Q1103 C-10
Q1104 C-10
Q1105 D-9
Q1106 D-9
Q1107 C-8
Q1108 C-8
Q1109 E-7
Q1110 E-7
Q1111 C-7
Q1112 C-7
Q1113 C-6
Q1114 C-6

SRP-X351P
— 25 — — 26 —
3-12. SCHEMATIC DIAGRAM – FADER SECTION –
32
1
32
1
32
1
32
1
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
12
4
3
21
4
3
21
4
3
21
4
3
21
4
2
3
8
1
2
3
8
6
57
4
6
57
4
2
3
8
6
57
4
6
57
83
2
1
4
(1/2)
(1/2)
(2/2)
(1/2)
(2/2)
(1/2)
(2/2)
(2/2)
1
1

SRP-X351P
— 27 — — 28 —
3-13. PRINTED WIRING BOARD – MIX SECTION –
12
A
B
C
D
E
F
3456789101112
• Semiconductor Location
Ref. No. Location
IC301 C-3
IC302 D-3
IC303 C-4
IC304 C-4
IC305 C-5
IC306 D-5
IC307 C-7
IC308 D-7
IC309 D-8
IC310 D-9
IC311 D-10
IC312 D-4
IC313 E-9
IC314 C-10
IC315 B-10
IC316 B-11

SRP-X351P
— 29 — — 30 —
3-14. SCHEMATIC DIAGRAM – MIX SECTION (1/2) –
5
6
87
5
6
87
5
6
87
5
6
87
(1/2)
(1/2)
(1/2)
(1/2)
(2/2)
(2/2)
(2/2)
(2/2)
3
21
4
3
21
4
3
21
4
3
21
4
6
5
87
6
5
87
6
5
87
2
31
4
2
31
4
2
31
4
3
2
1
45
6
8
7
(
1/2
)
(
2/2
)
(
1/2
)
(
2/2
)
(
1/2
)
(
2/2
)
(
1/2
)
(
2/2
)

SRP-X351P
— 31 — — 32 —
3-15. SCHEMATIC DIAGRAM – MIX SECTION (2/2) –
5
6
87
5
6
87
5
6
87
5
6
87
3
21
4
3
21
4
3
21
4
3
21
4
5
6
87
3
21
4
5
6
87
3
21
4
5
6
87
3
21
4
5
2
14
36
5
2
14
36
5
2
14
36
5
2
3
1
6
4
(
1/2
)
(
2/2
)
(
1/2
)
(
2/2
)
(
1/2
)
(
2/2
)
(
1/2
)
(
2/2
)
(
1/2
)
(
2/2
)
(
1/2
)
(
2/2
)
(
1/2
)
(
2/2
)