Sony KDL-32W503A / KDL-32W503A Service Manual ▷ View online
29
Troubleshooting
3-2-3. LED BLINKING 3x (Audio Error)
Check 19.5V
(at fuse F4601)
to GND
impedance
F4601,IC4601,etc
(B* Board)
Replace F4601
High
enough
Low impedance
IC4601
burn or broken ?
Replace IC4601
Yes
Check broken parts
around IC4601
#2
IC4601,etc
(B* Board)
#3
IC4601 or parts around IC4601 NG
Check the IC4601
Out pin 38, 42, 43, 47
Switching 0V to 19V
around 300-400kHz
No
Yes
Check the CN4601
DC level ~9.7V
(at JL4621~JL4624)
No
L4601-L4604
or
C4611-C4614
NG
Yes
IC4601 NG
Check the IC4601
I2S line pin
4, 12, 15, 16 (at
CL4601~CL4604)
IC9000 NG
OK
NG
Check the IC4601
pin 18 (at CL4606)
is HIGH?
Yes
Solder NG
No
No
B* Board Type
EUROPE
JP
BLE
BLJ
Note:
G BOARD : N/A FOR THIS MODEL
G BOARD : N/A FOR THIS MODEL
30
Troubleshooting Reference
BLE , BLJ board Side A
F4601
IC4601
CL4601
CL
4602
4602
CL
4604
4604
CL
4603
4603
31
JL4621
JL4623
JL4622
JL4624
Troubleshooting Reference
BLE and BLJ board Side B
Board
Name
Name
Board PWB (A side)
Detail
BLJ
(IC9201)
BLE
(L9105,
IC9101)
IC9101)
BLJ
(L9105,
IC9101)
IC9101)
32
Troubleshooting
Troubleshooting Reference
IC9201
L9105
IC9101
L9105
IC9101
Click on the first or last page to see other KDL-32W503A / KDL-32W503A service manuals if exist.