Sony KDL-32W503A / KDL-32W503A Service Manual ▷ View online
17
SECTION 3
TROUBLESHOOTING
3-1. No Power
Note: For location details, refer to troubleshooting Reference for parts location.
No Power
Check STBY 3.3V
L9101 (B-others)
C9318 (BL*)
Harness/
AC Adaptor
G* Board
Replace
Between G* Board to
B* Board Harness /
AC Adaptor
B* Board
NG
OK
NG
OK
DC/DC converter check
NO POWER: Ayu2L Control
B* Board Type
EUROPE
JP
BLE
BLJ
Note:
G BOARD : N/A FOR THIS MODEL
G BOARD : N/A FOR THIS MODEL
18
Troubleshooting
Troubleshooting Reference
Board Name
Board PWB (A side)
Detail
BLE
(C9318)
BLJ
(C9318)
C9318
C9318
3-1-1. No POWER DC / DC Converter Check
19
Troubleshooting
START
Check SL9111 Voltage.
Is the voltage 1V?
Check
SL9109 (B-others)
JL9132 (BL*) Voltage.
Is the voltage 5V?
Check
SL9103 (B-others)
JL9116 (BL*) Voltage.
Is the voltage 3.3V?
Check
SL9107 (B-others)
JL9125 (BL*) Voltage.
Is the voltage 1.5V?
END
Check F9105
(Check before fuse &
after fuse condition)
Check F9104
(Check before fuse &
after fuse condition)
Check F9102
(Check before fuse &
after fuse condition)
Check F9102
(Check before fuse &
after fuse condition)
no
yes
no
yes
no
yes
no
yes
Check
SL9105 (B-others)
JL9126 (BL*)
Voltage.
Is the voltage
1.18V?
yes
Check F9106
(Check before fuse &
after fuse condition)
no
B* Board Type
EUROPE
JP
BLE
BLJ
Note:
G BOARD : N/A FOR THIS MODEL
G BOARD : N/A FOR THIS MODEL
20
Troubleshooting
Troubleshooting Reference
Board
Name
Name
Board PWB (A side)
Detail
BLE
(JL9132)
(JL9116)
(JL9125)
(JL9126)
(SL9111)
(F9102)
(F9104)
(F9105)
(F9106)
(JL9116)
(JL9125)
(JL9126)
(SL9111)
(F9102)
(F9104)
(F9105)
(F9106)
BLE
(JL9132)
(JL9116)
(JL9125)
(JL9126)
(SL9111)
(F9102)
(F9104)
(F9105)
(F9106)
(JL9116)
(JL9125)
(JL9126)
(SL9111)
(F9102)
(F9104)
(F9105)
(F9106)
A side
B side
SL9111
F910
5
5
F9104
F9106
F9102
JL9132
JL9116 JL9125
JL9126
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