Sony KDL-32W600A / KDL-32W603A / KDL-32W605A / KDL-32W607A / KDL-32W650A / KDL-32W651A / KDL-32W653A / KDL-32W654A / KDL-32W655A / KDL-32W656A / KDL-32W658A / KDL-32W670A / KDL-32W674A / KDL-42W650A / KDL-42W651A / KDL-42W653A / KDL-42W654A / KDL-42W655A / KDL Service Manual ▷ View online
RB1G CHASSIS
W600A/ W603A/ W605A/ W607A/ W650A/ W651A/ W653A/
W654A/ W655A/ W656A/W657A/ W658A/ W670A/ W674A
85
Troubleshooting
Troubleshooting Reference
BM board Side A (not applicable for this model)
P
in 4
P
in 3
P
in
2
P
in 1
CN4601
L4604
L4603
L4602
L4601
RB1G CHASSIS
W600A/ W603A/ W605A/ W607A/ W650A/ W651A/ W653A/
W654A/ W655A/ W656A/W657A/ W658A/ W670A/ W674A
86
Troubleshooting
Troubleshooting Reference
BKE and BKX board Side A
F4601
L4601
L4602
L4603
L4604
P
in 4
P
in 3
P
in 2
P
in 1
CN4601
RB1G CHASSIS
W600A/ W603A/ W605A/ W607A/ W650A/ W651A/ W653A/
W654A/ W655A/ W656A/W657A/ W658A/ W670A/ W674A
87
Troubleshooting
3-3-4. Main Board Power On Checking (for Main SP Lch & Rch)
No
Checking Item
OK
NG
If
NG
If
NG
1
Check
IC4601 side-terminal of
L4601,L4602,
L4603,L4604
IC4601 side-terminal of
L4601,L4602,
L4603,L4604
Switching Freq = 384kHz or
768KHz ±20KHz
Vrms = dont care
768KHz ±20KHz
Vrms = dont care
No switching
frequency at
either one of the
CL
frequency at
either one of the
CL
Go to next checking.
2
Check F4601 MainSP
(for BA2 and BM board
only)
(for BA2 and BM board
only)
V(before fuse) = 12.5V ± 0.5V
V(after fuse) = 12.5V ± 0.5 V
V(after fuse) = 12.5V ± 0.5 V
No voltage.
Check fuse broken?
Check CN9101 Pin 8
&10 got 12.5V?
Check CN9101 Pin 8
&10 got 12.5V?
Change fuse (5A).
Check power supply
board audio VCC.
Check power supply
board audio VCC.
3
Check F4601 MainSP
(for BKE and BKX
board only)
(for BKE and BKX
board only)
V(before fuse) = 19.5V ± 0.5V
V(after fuse) = 19.5V ± 0.5 V
V(after fuse) = 19.5V ± 0.5 V
No voltage.
Change fuse (5A).
Check power supply
board audio VCC.
Check power supply
board audio VCC.
4
Check IC4601 (Pin
8) and C4601 (Pin 27)
(for BKE and BKX
board only)
8) and C4601 (Pin 27)
(for BKE and BKX
board only)
V(before fuse) = 3.3V ± 0.5V
V(after fuse) = 3.3V ± 0.5 V
V(after fuse) = 3.3V ± 0.5 V
No voltage.
Check +3.3V_MAIN
supply.
supply.
Size
B* Board Type
(Segment: LW)
OTHERS EUROPE
JP
32”
BKX
BKE
BKJ
42”
BKX
BKE
BKJ
RB1G CHASSIS
W600A/ W603A/ W605A/ W607A/ W650A/ W651A/ W653A/
W654A/ W655A/ W656A/W657A/ W658A/ W670A/ W674A
88
Troubleshooting
Troubleshooting Reference
BA2 board Side A (not applicable for this model)
L4602
L4601
L4603
L4604
Click on the first or last page to see other KDL-32W600A / KDL-32W603A / KDL-32W605A / KDL-32W607A / KDL-32W650A / KDL-32W651A / KDL-32W653A / KDL-32W654A / KDL-32W655A / KDL-32W656A / KDL-32W658A / KDL-32W670A / KDL-32W674A / KDL-42W650A / KDL-42W651A / KDL-42W653A / KDL-42W654A / KDL-42W655A / KDL service manuals if exist.