DOWNLOAD Sony KDL-42W850A / KDL-47W850A / KDL-55W850A Service Manual ↓ Size: 53.63 MB | Pages: 127 in PDF or view online for FREE

Model
KDL-42W850A KDL-47W850A KDL-55W850A
Pages
127
Size
53.63 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kdl-42w850a-kdl-47w850a-kdl-55w850a.pdf
Date
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Sony KDL-42W850A / KDL-47W850A / KDL-55W850A Service Manual ▷ View online

RB1G
CHASSIS
W850A
Troubleshooting
Troubleshooting Reference 
BKE and BKX board Side A (not applicable for this model)
BKE and BKX board Side A (not applicable for this model)
F4601
8
IC4601
8 
2
CN4601
2
7 
Pin 4 
Pin 3
Pin 2
Pin 1
89
RB1G
CHASSIS
W850A
Troubleshooting
3-3-4. Main Board Power On Checking (for Main SP Lch & Rch)
No
Checking Item
OK
NG
If
 NG
If 
 NG
5
Check CL4605, 
CL4606, CL4607
Vdc = 3.3V ± 0.3V
Vdc < 0.8V
CL4606 NG,
Check IC4601
CL4605,4607 NG,
Check IC9000
6
Check CL4601, 
CL4602, CL4603, 
CL4604
CL4601 = 12.288MHz
CL4603 = 3.072MHz
CL4604 = 48KHz
CL4602 = moving CLK
If no frequency at CL4601, 
CL4603, CL4604, Ayu2 IC 
(IC9000) NG.
If  no frequency at CL4602, 
If sound source OK, 
but CL4602 = NG,
Ayu2 IC (IC9000) NG.
All Vp-p 
≈ 3.3V
make sure sound source 
OK.
Note: 
(AYU2) – IC9000
(Brownie)- IC9001
(*)
Size
B* Board Type G* Board Type
42”
BA2-S GL2S
47”
BA2-S
GL2S
90
(Brownie)- IC9001
55”
BA2-S
GL2E
RB1G
CHASSIS
W850A
Troubleshooting
Troubleshooting Reference 
BA2 board Side A
BA2 board Side A 
C
C
C
C
L4602
C
L4603
C
L4604
CL4601
91
RB1G
CHASSIS
W850A
Troubleshooting
Troubleshooting Reference 
BA2 board Side B 
CL4607
92
CL4605
CL4606
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