Sony KD-55S8005C Service Manual ▷ View online
KD-55/65S8505C, KD-55/65S8005C
TROUBLE SHOOTING
3-3-7. 6 Times Blinking (Backlight Error)
Harness /
Connection
broken
6-times blinking
Check a voltage of
BL_ERR_DET.
Check point is
JL9007
or
23pin of CN9000
on B*Board
Voltage ≥ 1.9 V
Symptom
Improvement
Harness
Change
harness
Change
B* board
B* Board
Harness /
Connection OK
No improvement
Voltage < 1.8 V
Panel
Change
Panel
Symptom
Improvement
No Improvement
Symptom
Improvement
LED driver or G* board
Change LD board or G* board.
No improvement
LD board/G board
Symptom
Improvement
Check
harness/connection
G*board to B*Board
or
LD board to B*Board
105
KD-55/65S8505C, KD-55/65S8005C
TROUBLE SHOOTING
3-3-8. 7 Times Blinking (Temperature Error)
7-time blinking
B* Board NG
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
Check I2C_C bus
communication OK?
(check the next page)
Yes
No
Temp sensor
IC1400
I2C_C bus dumping or
Muffin check
106
KD-55/65S8505C, KD-55/65S8005C
TROUBLE SHOOTING
3-4-1. No Sound Audio
No Sound
Audio
Replace B-K Harness
OK ?
Yes
No
Replace K-PWB
OK ?
Replace B-PWB
OK ?
Yes
No
Yes
No
Finish
Segment “XS”?
Yes
No
3-4. NO SOUND
No Sound with normal picture
Please refer Audio
troubleshooting
YES
NO
Only RF tuner input?
Check IC1000 (SOC)
3-4-2. No Sound : TUNER
107
KD-55/65S8505C, KD-55/65S8005C
TROUBLE SHOOTING
3-4-3. No Sound : MHL
No Sound
Check the picture
NG
OK
Refer to 4.6 MHL NO PICTURE
NG
OK
Check the settings of
Source equipment
Check Sound by other TV set
which is same model
NG
OK
Check Source equipment
by Reference TV set
(For example, Samsung TV(UN46ES7000),
Toshiba TV(42WL863), RB1 or RB2)
Refer to 3.1 No Sound Audio
Change B-Board.
108
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