DOWNLOAD Sony KDL-65W850A / KDL-65W855A Service Manual ↓ Size: 16.78 MB | Pages: 127 in PDF or view online for FREE

Model
KDL-65W850A KDL-65W855A
Pages
127
Size
16.78 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / COMMON
File
kdl-65w850a-kdl-65w855a.pdf
Date
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Sony KDL-65W850A / KDL-65W855A Service Manual ▷ View online

#2 
#3 
3-2.  LED Blinking
3-2-1. LED BLINKING  3x 
F4601,IC4602,F4701,IC4701,etc
(K* Board)
IC4602,IC4701etc
(K* Board)
Check the IC4602/4701
Check the
Check 12.5V 
( at F4601/4701) to GND
impedance
Replace F4601/4701
High
enough
Out  pin 10, 15, 26, 31
Switching 0V to 12V
around 300-400kHz
No
Y
Check the
IC4602/4701 pin 18 
(at CL4606/4706)
is HIGH?
Yes
No
Low impedance
IC4602/4701 or parts around IC
NG
Yes
Yes
Solder NG
IC4602 /4701
Check broken parts
Check the CN4702
DC level ~2V 
(at  JL4621~JL4624
No
L4720,4722,
L4723
or 
C4617 C4620
No
burn or broken ?
Yes
around IC4602/4701
/ JL4721~JL4724)
C4617-C4620
/ C4717-C4718
NG
Yes
Check the IC4602/4701
I2S li
i 5 6 7 8
NG
Replace IC4602/4701 
I2S line pin 5, 6, 7, 8
(at CL4601~CL4604
/CL4701~4704)
IC9000 NG
OK
IC4602/4701 NG
21
RB1G
CHASSIS
W850/855A
Troubleshooting
K board  Side A
IC4701
IC4602
F4701
CL4604
F4601
CL4701
CL4702
CL4704
CL4703
CL4601
CL4602
CL4604
CL4603
CL4701
22
RB1G
CHASSIS
W850/855A
Troubleshooting
K board Side B
JL4621
JL4622
JL4623
JL4624
JL4721
JL4722
JL4723
JL4724
23
RB1G
CHASSIS
W850/855A
Troubleshooting
3-2-2 LED BLINKING 4x (LED Voltage Error)
4-time blinking
Check 
Between 0.49V to 1.32V
BACKLIGHT_MON
on the B* Board
LED driver
B* Board
24
RB1G
CHASSIS
W850/855A
Troubleshooting
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