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
21
RB2G CHASSIS
W700B/ W800B
Troubleshooting
Board
Name
Board PWB (A side)
Detail
Name
BAX
(CN9101 Pin
23)
23)
CN9101 Pin 23
Chassis: RB2G, HE-L
Chassis: RB2G, HE-L
22
2.1-5 - NO POWER: G BOARD
RB2G CHASSIS
W700B/ W800B
Troubleshooting
2-1-5 No Power G* Board
No Power
2-1-5. No Power G Board
Check STBY 3.3V
L9107
G* Board
Replace
Between G* Board to
B* Board Harness
NG
NG
Harness
OK
OK
B* Board
DC/DC converter check
NO POWER: Ayu2 control
Board Name
Board PWB (A side)
Detail
BAX-L
1.L9107
L9107
1
1
Chassis: RB2G, HE-L
Chassis: RB2G, HE-L
23
2.1-6 - NO POWER: DC/DC CONVERTER CHECK
RB2G CHASSIS
W700B/ W800B
Troubleshooting
2-1-6 No Power - DC/DC converter check
2-1-6. No Power - DC/DC converter check
START
START
Check C9137 Voltage.
Is the voltage 5V?
Check F9101
no
Check C9175 is
it 1.0V?
Check F9105
no
Check C9192 Voltage.
Is the voltage 5V?
Check F9102
yes
no
Check C9167 is
it 1.15V?
Check F9106
no
Check C9153 Voltage.
Is the voltage 3.3V?
Check F9104
yes
no
yes
END
yes
Check C9172 Voltage.
Is the voltage 1.5V?
Check F9104
yes
no
yes
Chassis: RB2G, HE-L
Chassis: RB2G, HE-L
24
RB2G CHASSIS
W700B/ W800B
Troubleshooting
Board
Name
Board PWB (A side)
Detail
Name
BAX-L
1 C9137 [5V]
F910
1
1
2
F9102
3, 4
C9153
F9104
5
1
2
1.C9137 [5V]
F9101
2.C9192 [5V]
F9102
3.C9153 [3.3V]
C9137
C9172
F9104
3,4
6
3.C9153 [3.3V]
F9104
4.C9172 [1.5V]
F9104
5.C9175 [1V]
C9192
5
6
[ ]
F9105
6.C9167[1.15V]
F9106
C9175
F9105
C9175
F9106
Click on the first or last page to see other 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 manuals if exist.