Sony KDL-32W700C / KDL-32W705C / KDL-40W700C / KDL-40W705C / KDL-48W700C / KDL-48W705C / KJ-32W700C / KJ-40W700C / KJ-48W700C Service Manual ▷ View online
45
Troubleshooting
3-2-5. LED BLINKING 6x (Backlight Error)
No
Harness /
Connection
broken
6-times blinking
Check
JL9016
BACKLIGHT_MON
on B*Board
Check
harness/connection
G*board to B*Board
or
LD board to B*Board
G*Board
or LD?
Voltage
≥ 1.9 V
Symptom
Improvement
Harness
Change
harness
Change
B* board
B* Board
Harness /
Connection OK
No
improvement
PSU OK
Voltage < 1.8 V
Panel
Change
Panel
Symptom
Improvement
Visual Check LS Bar
FFC Conductive Copper
Peel Off?
Refer to 1.5
Out1 & Out2 Check (LED_Output)
LD
G* Board
Yes
Suspect LS
Bar Broken
No
Improvement
Symptom
Improvement
46
Troubleshooting
3-2-5. LED BLINKING 6x (Backlight Error)
BAX-L: B Side
JL9016
47
Troubleshooting
3-2-6. LED BLINKING 7x (Temperature Error)
Troubleshooting Reference
7-time blinking
B* Board
Yes
Panel
NG
Change B* Board,
and Aging a few
hours
Setting
circumstance is OK?
Temperature,
Ventilation, etc.
Set to another
location, etc.
No
Symptom
improvement
improvement
I2CA bus check:
HDMI is working?
Yes
No
Temp sensor
IC7001
I2CA bus dumping or
Ayu2L check
Board Name
Board PWB (A side)
Detail
BAXL
(IC7001)
IC7001
48
Troubleshooting
3-3. No Sound
No Sound
Change the Speaker
Harness
Speaker Harness
Replace
the B* Board
Speaker
NG
NG
Check the
“Speakers setting”
Change to
“TV Speaker”
“Audio System”
“TV Speakers”
Symptom
improvement
improvement
Symptom
improvement
improvement
No Sound: Audio
No Sound: Tuner
No Sound: HDMI
B* Board
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