Sony SA-WGT5D Service Manual ▷ View online
SA-WGT5D
45
To clear the Initialize Setup Data
Press the [DVD/TUNER MENU] button on the remote command-
er and then press the [CLEAR] button on the remote commander.
Press the [DVD/TUNER MENU] button on the remote command-
er and then press the [CLEAR] button on the remote commander.
Emg. History Check
Initialize setup data ...
Laser Hours
CD
999h
59min
DVD
999h
59min
[Next]Next Page [Prev]Prev Page
[0]Return to Top Menu
(Displayed values in the above fi gure are example)
To return to the Top Menu of Remocon Diagnosis Menu
Press the [0] button on the remote commander.
Press the [0] button on the remote commander.
•
Check Version Information
To check the version information, please follow the following
procedure.
procedure.
1. From the Top Menu of Remocon Diagnosis Menu, select “4.
Version information” by pressing the [4] button on the remote
commander. The following screen appears on the on-screen
display.
commander. The following screen appears on the on-screen
display.
[0]Return to Top Menu
Version Information
Firm(Main): Ver. 0.030
Firm(Sub): OW.B1
RISC: BP6305
8032: AU0001
Audio DSP: 08.00.00.15
Servo DSP: AC.09.06.C7
Firm(Sub): OW.B1
RISC: BP6305
8032: AU0001
Audio DSP: 08.00.00.15
Servo DSP: AC.09.06.C7
(Displayed values in the above fi gure are example)
To return to the Top Menu of Remocon Diagnosis Menu, press
the [0] button on the remote commander.
the [0] button on the remote commander.
SA-WGT5D
46
SECTION 4
ELECTRICAL CHECKS
TUNER SECTION 0 dB = 1 V
FM TUNE LEVEL CHECK
signal
generator
unit
Procedure:
1. Press the [
1. Press the [
?
/
1
] button to turn the power on.
2. Input the following signal from signal generator to FM antenna
input directly.
Carrier frequency : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation
Deviation
: 75 kHz
Modulation
: 1 kHz
ANT input
: 35 dBu (EMF)
Note: Use 75 ohm coaxial cable to connect signal generator and the unit.
You cannot use video cable for checking.
Use signal generator whose output impedance is 75 ohm.
3. Press the [FUNCTION] button to turn the “TUNER FM” func-
tion and tune A, B and C signals.
4. Check “TUNED” is lit on the fl uorescent indicator tube for A,
B and C signals.
When the selected station signal is received in good condition,
“TUNED” is displayed on the fl uorescent indicator tube.
“TUNED” is displayed on the fl uorescent indicator tube.
DVD SECTION
Note:
1. DVD block is basically constructed to operate without adjustment.
2. Use YEDS-18 disc (Part No. 3-702-101-01) unless otherwise indicat-
1. DVD block is basically constructed to operate without adjustment.
2. Use YEDS-18 disc (Part No. 3-702-101-01) unless otherwise indicat-
ed.
3. Use an oscilloscope with more than 10 M
impedance.
4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specifi ed value with the following check.
RF SIGNAL CHECK
+
–
–
ARAGON-MOTHER board
CN402 pin 17 (RF)
CN402 pin 1 (GND (LD))
oscilloscope
(DC range)
Procedure:
1. Connect the oscilloscope to CN402 pin 17 (RF) and CN402
1. Connect the oscilloscope to CN402 pin 17 (RF) and CN402
pin 1 (GND (LD)) on the ARAGON-MOTHER board.
2. Press the [
?
/
1
] button to turn the power on.
3. Press the [FUNCTION] button to turn the “DVD/CD” func-
tion.
4. Press the [
Z
] button to open the disc tray and set the disc
(YEDS-18).
5. Press the [
Z
] button to close the disc tray.
6. Press the [
N
] button to playback.
7. Confi rm that oscilloscope waveform is as shown in the fi gure
below. (eye pattern)
A good eye pattern means that the diamond shape (
) in the
center of the waveform can be clearly distinguished.
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level: 1.0 ± 0.25 Vp-p
Connection Location:
– ARAGON-MOTHER Board (Component Side) –
pin 1
(GND (LD))
pin 17
(RF)
IC404
IC104
CN402
SA-WGT5D
47
SECTION 5
TROUBLESHOOTING
1. Switching Regulator (SSN-152AD) (SWR1) Diagnosis Flow
CN4:
Between pin 3, 4 (LED)
and pin 5, 6 (LED GND)
Between pin 3, 4 (LED)
and pin 5, 6 (LED GND)
Standby
Demo mode
Power on
13.5 V ± 5 %
13.5 V ± 5 %
13.5 V ± 5 %
CN2:
Between pin 1 to 3 (+PVDD)
and pin 5 (GND)
Between pin 1 to 3 (+PVDD)
and pin 5 (GND)
0 V
62.5 V ± 5 %
0 V
CN2:
%HWZHHQSLQWRí39''
and pin 5 (GND)
%HWZHHQSLQWRí39''
and pin 5 (GND)
0 V
0 V
í9
CN2:
Between pin 4 (+VL)
and pin 5 (GND)
Between pin 4 (+VL)
and pin 5 (GND)
0 V
0 V
24 V ± 5 %
CN2:
%HWZHHQSLQí9/
and pin 5 (GND)
%HWZHHQSLQí9/
and pin 5 (GND)
0 V
0 V
í9
CN2:
Between pin 10 (SVP)
and pin 5 (GND)
Between pin 10 (SVP)
and pin 5 (GND)
0 V
0 V
í9
Connect the AC power cord.
The output voltage from the switching regulator is the following standard value.
No
Replace the
switching regulator (SWR1)
.
Yes
End
1
CN1 (AC power cord connector)
2
F1 (Fuse)
3
T1 (Sub power transformer)
4
CN4 (Main power connector)
Pin
1
:
Audio
Pin 2 : Audio GND
Pin 3 : LED
Pin 4 : LED
Pin 5 : LED GND
Pin 6 : LED GND
Pin
7
:
AC-DET
Pin 8 : PCON
Pin 9 : LOW AC
5
T2 (Main power transformer)
6
CN2 (Amplifi er power connector)
Pin 1 : +PVDD
Pin 2 : +PVDD
Pin 3 : +PVDD
Pin 4 : +VL
Pin 5 : GND
Pin 6 : –VL
Pin 7 : –PVDD
Pin 8 : –PVDD
Pin 9 : –PVDD
Pin 10 : SVP
– SWITCHING REGULATOR (Component Side) –
– SWITCHING REGULATOR (Conductor Side) –
CN1
F1
T2
CN2
CN4
T1
CN2
Pin 1
Pin 10
Pin 1
Pin 9
CN4
SA-WGT5D
48
2. Optical Pick-up Block (CMS-S76RFS7G1/S76RFS7GP) (OP1) Diagnosis Flow
Remove the top panel, turn the
power on, close the disc tray and
set in the state that optical pick-up
block can see.
power on, close the disc tray and
set in the state that optical pick-up
block can see.
Yes
Yes
Yes
The voltage of the following is 3.3 V.
ARAGON-MOTHER board:
CN052 pin 5
The voltage of the following is 1.2 V.
ARAGON-MOTHER board:
CN052 pin 7
ARAGON-MOTHER board:
CN052 pin 5
The voltage of the following is 1.2 V.
ARAGON-MOTHER board:
CN052 pin 7
The optical pick-up block moves to
the inner circumference.
(Visual check)
the inner circumference.
(Visual check)
No
The spindle motor rotates.
(Visual check)
(Visual check)
No
Check the circuit (R015, R016) of area
surrounding IC002 on the POWER board
about 3.3 V output.
Check the circuit (R009, R012) of area
surrounding IC002 on the POWER board
about 1.2 V output.
surrounding IC002 on the POWER board
about 3.3 V output.
Check the circuit (R009, R012) of area
surrounding IC002 on the POWER board
about 1.2 V output.
No
Check the circuit of area surrounding
IC701 pin 17 (VOLD+), pin 18 (VOLDí)
on the ARAGON-MOTHER board.
Check the circuit of area surrounding
IC404 pin 18 (FMO) on the ARAGON-
MOTHER board.
IC701 pin 17 (VOLD+), pin 18 (VOLDí)
on the ARAGON-MOTHER board.
Check the circuit of area surrounding
IC404 pin 18 (FMO) on the ARAGON-
MOTHER board.
No
Yes
The SL+/SLí signal is outputted to the
CN701 pin 6 (SL+), pin 5 (SLí) on the
ARAGON-MOTHER board.
CN701 pin 6 (SL+), pin 5 (SLí) on the
ARAGON-MOTHER board.
Yes
Replace the optical pick-up block
(OP1)
because sled motor has the problem.
Check the circuit of area surrounding
IC701 pin 11 (VOSL+), pin 12 (VOSLí)
on the ARAGON-MOTHER board.
Check the circuit of area surrounding
IC404 pin 17 (DMO) on the ARAGON-
MOTHER board.
IC701 pin 11 (VOSL+), pin 12 (VOSLí)
on the ARAGON-MOTHER board.
Check the circuit of area surrounding
IC404 pin 17 (DMO) on the ARAGON-
MOTHER board.
No
The SP+/SPí signal is outputted to the
CN701 pin 2 (SP+), pin 1 (SPí) on the
ARAGON-MOTHER board.
CN701 pin 2 (SP+), pin 1 (SPí) on the
ARAGON-MOTHER board.
Yes
Replace the optical pick-up block
(OP1)
because spindle motor has the problem.
The optical pick-up block does the
focus search.
(Visual check)
focus search.
(Visual check)
No
Check the circuit of area surrounding
IC701 pin 14 (VOFC+), pin 13 (VOFCí)
on the ARAGON-MOTHER board.
Check the circuit of area surrounding
IC404 pin 22 (FOO) on the ARAGON-
MOTHER board.
IC701 pin 14 (VOFC+), pin 13 (VOFCí)
on the ARAGON-MOTHER board.
Check the circuit of area surrounding
IC404 pin 22 (FOO) on the ARAGON-
MOTHER board.
No
The FCS+/FCSí signal is outputted to the
CN402 pin 23 (FCS+), pin 24 (FCSí) on
the ARAGON-MOTHER board.
CN402 pin 23 (FCS+), pin 24 (FCSí) on
the ARAGON-MOTHER board.
Yes
Replace the optical pick-up block
(OP1)
because
optical pick-up block
(OP1) has
the problem.
– Continued on page 49 –
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