Sony RB1G - LED Blinking

RB1G CHASSIS
W600A/ W603A/ W605A/ W607A/ W650A/ W651A/ W653A/
W654A/ W655A/ W656A/W657A/ W658A/ W670A/ W674A
33
Troubleshooting
3-2. LED Blinking
3-2-1. LED BLINKING 3x (DC Alert, Audio Error & Communication Error)
3-time blinking
Check D+1.0V at
JL9129
on the B* Board
F9105,IC9103,etc
(B* Board)
Speaker
Check +3.3V_MAIN_1
at JL9116 on
the B* Board
Check
Speaker Impedance
at SP Connector
F9102,IC9102,etc
(B* Board)
Check AUDIO+12.5V
at pin 8/10 of
CN9101 on
the B* Board
G-board /
Adapter (LW)
Check +12.5V
at Power Amp side
of F4601
on
the B* Board
F4601,IC4601,etc
(B* Board)
IC4601,etc
(B* Board)
DC_ALERT
NG
OK
NG
OK
AUDIO
NG
OK
NG
OK
NG
OK
(Continue) #2
(Continue) #3
DMD_TU_I2C
or
I2CB bus check:
Probe CL2205,
CL2206
I2C bus dumping or
AYU2
I2CA bus check:
Probe CL5023,
CL5024
I2CA bus
dumping
resistor
or AYU2
TUNER
NG
OK
NG
HDMI
OK
I2C_CCP check
R8502 and
R8503
NG
OK
Brownie
I2C_CCP Pull
Up
Check +1.8V_MAIN on
Pin 2 of IC9201
IC9201,etc
(B* Board)
Check +5V_MAIN
at JL9132 on
the B* Board
NG
OK
IC9101,etc
(B* Board)
SPIC check
Probe
R8541,R8542
(BKE/X) only
OK
SPI dumping
resistor
or AYU2
(*)
Note:
(AYU2) – IC9000
(Brownie)- IC9001
Size B* Board Type
(Segment: LW)
OTHERS EUROPE JP
32” BKX BKE BKJ
42” BKX BKE BKJ
Note:
G BOARD : ( N/A FOR THIS MODEL)