Read Sony KDL-32W700B / KDL-32W705B / KDL-32W706B / KDL-42W700B / KDL-42W705B / KDL-42W706B / KDL-42W708B / KDL-42W800B / KDL-42W805B / KDL-42W807B / KDL-42W815B / KDL-42W817B / KDL-42W828B / KDL-42W829B / KDL-50W700B / KDL-50W705B / KDL-50W706B / KDL-50W790B / KDL Service Manual online
RB2G
CHASSIS
W700B/ W705B/ W706B/ W707B/ W708B/ W790B
W800B/ W805B/ W807B/ W808B/ W815B/ W817B/ W828B/ W829A
W855B/ W857B
12
Troubleshooting
3-2-1. LED Blinking: 3x (DC Alert & Communication Error)
Note :
-B* Board – BAXL Board
-G*Board- Not applicable
-TUS Board (Others) / TUW Board (Japan)
-B* Board – BAXL Board
-G*Board- Not applicable
-TUS Board (Others) / TUW Board (Japan)
3-2. LED BLINKING
Speaker
Check
Speaker Impedance
at SP Connector
Check
Audio +12.5V
at pin 18/20 of CN9101
on the B* Board
(except Adapter
(except Adapter
model)
G* Board
Check
+12.5V / +19.5V
at Power Amp side
of F4401 / F4601 on
the B* Board
F4401 / F4601,
IC4901 / IC4601
,etc
(B* Board)
IC4901 / IC4601,etc
(B* Board)
AUDIO
NG
OK
NG
OK
NG
OK
3-times blinking
Check D+1.0V at
JL9003 / JL9127 on
the B* Board
F9105,IC9103,
Etc (B* Board)
Check
+3.3V_MAIN_1
at JL9117 on
the B* Board
F9104,IC9104,
etc (B* Board)
etc (B* Board)
DC_ALERT
NG
OK
NG
OK
NG
Check
+1.8V_MAIN on
Pin 2 of IC9201
IC9201,etc
(B* Board)
Check
+5.0V_MAIN
at JL9113 / JL9112 on
the B* Board
NG
OK
IC9102 / IC9101
etc (B* Board)
TUNER Board
Change TUS/TUW
Board
OK
NG
Click on the first or last page to see other KDL-32W700B / KDL-32W705B / KDL-32W706B / KDL-42W700B / KDL-42W705B / KDL-42W706B / KDL-42W708B / KDL-42W800B / KDL-42W805B / KDL-42W807B / KDL-42W815B / KDL-42W817B / KDL-42W828B / KDL-42W829B / KDL-50W700B / KDL-50W705B / KDL-50W706B / KDL-50W790B / KDL service manuals if exist.