Sony KDL-32W700B / KDL-42W700B / KDL-42W800B / KDL-42W805B / KDL-50W700B / KDL-50W790B / KDL-50W800B / KDL-50W805B / KDL-50W807B / KDL-55W700B / KDL-55W790B / KDL-55W800B / KDL-55W805B / KDL-55W807B Service Manual ▷ View online
Chassis: RB2G, HE-L
Chassis: RB2G, HE-L
37
RB2G CHASSIS
W700B/ W800B
Troubleshooting
Board
Name
Board PWB (A side)
Detail
BAX
(F4401)
F4401
BAXL
(F4601)
F4601
BAX
(IC4901)
IC4901
Chassis: RB2G, HE-L
Chassis: RB2G, HE-L
38
RB2G CHASSIS
W700B/ W800B
Troubleshooting
Board
Name
Board PWB (A side)
Detail
BAXL
(IC4601)
IC4601
BAX
(CN9101)
CN9101
BAXL
BAXL
(CN9101)
CN9101
Chassis: RB2G, HE-L
Chassis: RB2G, HE-L
39
2.2-2 - LED BLINKING: 3X(AUDIO ERROR) - BAX-L(HE-L,HM,HE-H) BOARD ONLY
RB2G CHASSIS
W700B/ W800B
Troubleshooting
2-2 Led Blinking
#2
#3
2-2-2. 3x (Audio Error) – BAX-L(HE-L,HM,HE-H)board only
2-2. Led Blinking
F4601,IC4601,etc
(B* Board)
IC4601,etc
(B* Board)
Check 19.5V
(at fuse F4601)
to GND
impedance
Replace
F4601
High
enough
enough
Check the
IC4601
Out pin 37, 41, 44, 46
Switching 0V to
19V
around 300-400kHz
No
Check the IC4601
pin 18 (at CL4606)
is HIGH?
No
Low impedance
IC4601 or parts around IC4601
NG
Yes
Yes
Solder NG
IC4601
Check broken parts
NG
Check the CN4601
DC level ~
9.7V
(at JL4621~JL4624)
No
L4601-L4604
No
burn or broken ?
Yes
p
around
IC4601
or C4611-C4614
NG
Yes
Check the IC4601
NG
Replace
IC4601
I2S line pin
4, 12, 15, 16 (at
CL4601~CL4604)
IC9000 NG
OK
IC4601 NG
#2
#3
Chassis: RB2G, HE-L
Chassis: RB2G, HE-L
40
RB2G CHASSIS
W700B/ W800B
Troubleshooting
6
02
6
03
6
04
CL4
6
CL4
6
CL4
6
12
13
24
25
18
15
16
IC4601
4
F4601
36
1
37
48
39
41
44
46
4
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