Sony KDL-32W700C / KDL-32W705C / KDL-40W700C / KDL-40W705C / KDL-48W700C / KDL-48W705C / KJ-32W700C / KJ-40W700C / KJ-48W700C Service Manual ▷ View online
21
Troubleshooting
19.5V_SS,
19.5V_HOLD
OK?
C9196, C9197
STBY_+3.3V
OK?
L9107
IC9103 broken
Check LD Board or
Harness
+5V_VBUS
(IC9106) OK?
C9214
IC9106 broken
+5V_MAIN
(IC9101) OK?
SL9104
IC9101 broken
D+1.0V
(IC9103) OK?
SL9110
+3.3V_MAIN_1
(IC9104) OK?
SL9107
IC9104 broken
D+1.1V
(IC9105) OK?
SL9108
IC9105 broken
+3.3V_MAIN
(Q9107) OK?
SL9106
Q9107 broken
Check LD Board or
Harness
+1.5V_DDR
(IC9104) OK?
SL9109
IC9104 broken
All
DDCON
OK
Sheet 3
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
Turn ON board
MAIN_
PWR
high
Refer AYU2L manual
service sheet
NO
YES
SYSTE
M1_P
WR
high
Refer AYU2L manual
service sheet
YES
NO
SYSTE
M3_P
WR
high
Refer AYU2L manual
service sheet
YES
NO
STBY_+1.8V,
STBY_+1.0V
OK?
C7374,C736
9
Check IC7304 (1.8V)
or IC7305 (1.0V)
YES
NO
+1.8V_MAIN
OK?
C9202
IC9201 broken
YES
NO
SYSTE
M2_P
WR
high
Refer AYU2L
manual service
sheet
YES
NO
3-1-4. NO POWER: DC/DC converter check
1
3
4
2
22
1
C9214
C9158
IC9106
F9102
SL9104
C9114
IC9101
SL9110
F9101
F9105
Q9108
C9147
IC9103
MAIN_PW
R
SYSTEM1_PWR
L9107
19.5V_S
S
19.5V_HOL
D
C9302
23
Q9107
SL9106
C9148
2
C7374
C7369
IC7305
IC7304
IC9201
C9202
24
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