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
13
RB2G CHASSIS
W700B/ W800B
Troubleshooting
BAX
Board PWB (A side)
Detail
BAX
F9104
C9153
BAX
F9104
C9172
C9172
Chassis: RB2G, HE-L
Chassis: RB2G, HE-L
14
RB2G CHASSIS
W700B/ W800B
Troubleshooting
BAX
Board PWB (A side)
Detail
BAX
F9106
C9167
Chassis: RB2G, HE-L
Chassis: RB2G, HE-L
15
2.1-4 - NO POWER: AYU2 CONTROL
RB2G CHASSIS
W700B/ W800B
Troubleshooting
2-1- 4 No Power : Ayu2 control
2-1- 4. No Power : Ayu2 control
No Power
No Power
Check
STBY_+3.3V
at
AYU2
(F11, G11, K13 pin
Look for
AC_MON line
at
CN9101 pin10 or G-board
NG
NG
Check
AC_MON
at
AYU2
look for where
STBY +3.3V is NG.
(
,
,
p
C7348)
at
CN9101 pin10 or G board
(C6 pin
C9131)
STBY_ 3.3V is NG.
Look for
MAIN_POWER line
NG
Check
MAIN_PWR
at
AYU2
OK
Check
STBY_+1.8V
at
AYU2
look for where
OK
NG
Check
STBY_+1.0V
look for where
at
CN9101 pin21 or replace AYU2
at
AYU2
(A9 pin
C9109)
OK
NG
Check
REG+12V
(K5, L5, L10, J7 pin
C7349)
STBY_+1.8V is NG.
OK
NG
at
AYU2
(N13, P13 pin
C7350)
Check Xtal oscillation
OK
look for where
STBY_+1.0V is NG.
NG
G-board
NG
Check
REG+12V
at
CN9101 pin23
OK
NG
Check Xtal oscillation
X7302, 32.768KHz
(A7, B7 pin
R7386)
NG
Replace
X7302 or Ayu2
OK
It might be power supply problem
Please refer
"DC/DC converter check" sheet
Or
Check
"STBY LED BLINKING"
Chassis: RB2G, HE-L
Chassis: RB2G, HE-L
16
RB2G CHASSIS
W700B/ W800B
Troubleshooting
Board
Board PWB (B side)
Detail
Board
Name
Board PWB (B side)
Detail
BAX
(C7348)
C7348
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.