Sony KDL-32W503A / KDL-32W503A Service Manual ▷ View online
21
Troubleshooting
Troubleshooting Reference
Board Name
Board PWB (A side)
Detail
BLJ
(JL9132)
(JL9116)
(JL9125)
(JL9126)
(SL9111)
(F9102)
(F9104)
(F9105)
(F9106)
(JL9116)
(JL9125)
(JL9126)
(SL9111)
(F9102)
(F9104)
(F9105)
(F9106)
BLJ
(JL9132)
(JL9116)
(JL9125)
(JL9126)
(SL9111)
(F9102)
(F9104)
(F9105)
(F9106)
(JL9116)
(JL9125)
(JL9126)
(SL9111)
(F9102)
(F9104)
(F9105)
(F9106)
L9103
L9102
F9102
SL9111
F910
5
5
F9104
L910
5
5
L91
07
07
F910
6
6
JL9132
JL9116 JL9125
JL91
26
26
22
Troubleshooting
3-1-2-2. No POWER: Ayu2L Control
No Power
Check STBY_+3.3V
at AYU2L
(H15, H16, H17 pin
C7407)
Adapter failure (LW)
NG
NG
Check STBY_+1.0V
at AYU2L
(J15, J16, J17 pin
C7408)
Check Xtal oscillation
X7302, 32.768KHz
(A23, B23 pin
R7386)
OK
Check AC_MON
at AYU2L
(C11 pin
R7352)
look for where
STBY_+3.3V is NG.
look for where
STBY_+1.0V is NG.
NG
Replace X7302 or Ayu2L
OK
It might be power supply problem
Please refer "DC/DC converter check" sheet
Or
Check "STBY LED BLINKING"
Replace AYU2L
NG
Check MAIN_PWR
at AYU2L
(C13 pin
R7344)
OK
Adapter failure (LW)
NG
Check REG+19V
at F9301(BL*)
OK
OK
Check STBY_+1.8V
at AYU2L
(H19 pin
C7403)
look for where
STBY_+1.8V is NG.
OK
OK
NG
NG
Note:
G BOARD : ( N/A FOR THIS MODEL)
G BOARD : ( N/A FOR THIS MODEL)
B* Board Type
EUROPE
JP
BLE
BLJ
Note:
G BOARD : N/A FOR THIS MODEL
G BOARD : N/A FOR THIS MODEL
23
Troubleshooting
Troubleshooting Reference
Board
Name
Name
Board PWB
Detail
BLE
(C7407)
(C7403)
(C7408)
(C7403)
(C7408)
BLE
(R7386)
(R7352)
(R7344)
(F9301)
(R7352)
(R7344)
(F9301)
C7408
C7407
C7403
R7386
F9301
R7352
R7344
24
Troubleshooting
Board
Name
Name
Board PWB
Detail
BLJ
(C7407)
(C7403)
(C7408)
(C7403)
(C7408)
BLJ
(R7386)
(R7352)
(R7344)
(F9301)
(R7352)
(R7344)
(F9301)
C7408
C7407
C7403
R7386
F9301
R7352
R7344
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