Sony KDL-22EX550 / KDL-22EX553 / KDL-22EX555 / KDL-26EX550 / KDL-26EX553 / KDL-26EX555 / KDL-32EX650 / KDL-32EX653 / KDL-32EX655 Service Manual ▷ View online
KDL-22/26EX550,553,555,32EX650,653,655(AEP/UK/IT)
81
TROUBLE SHOOTING
5) 7 times blinking (Temperature Error)
7 times blinking
Setting circumstance
is OK?
Temperature,
Ventilation, etc.
Set to another
Location, etc.
NO
YES
Change B* Board,
and Aging a few hours
B* Board
OK
Panel
6) 8 times blinking (Software Error)
8 times blinking
If the Symptom
Improved by changing
the WIFI module
B* Board
NO
WIFI Module
Symptom
improvement
improvement
KDL-22/26EX550,553,555,32EX650,653,655(AEP/UK/IT)
82
3-5. POWER (Green) LED BLINKING
POWER (Green) blinking
T-con
(Panel module)
Remove the LVDS FFC.
And recheck the impedance.
Check
the impedance between
TCON_VCC (CN6401#19)
and GND (CN6401#12)
G* Board
B* Board
Non-Stop blinking
TROUBLE SHOOTING
< 200 Ohm
>= 200 Ohm
< 200 Ohm
>= 200 Ohm
KDL-22/26EX550,553,555,32EX650,653,655(AEP/UK/IT)
83
TROUBLE SHOOTING
3-6. NO PICTURE
No Picture
Press HOME key.
Menu displayed?
B* Board
NO
YES
Replace
the LVDS FFC
Panel
(Tcon)
FFC
(LVDS)
NG
Check
BL_ON and BLINKING
at CN6401#5 & 4
on the G* Board
Both H
B* board
Replace the harness
between G* board
and B* board)
Harness
（G* to B*)
NG
Not both H
Change B* Board
G* board
NG
Symptom
improvement
improvement
Symptom
improvement
improvement
OK
KDL-22/26EX550,553,555,32EX650,653,655(AEP/UK/IT)
84
TROUBLE SHOOTING
3-7. NO SOUND
No Sound
Check the Speaker
Harness
Speaker Harness
Replace
the B* Board
B* Board
Speaker
NG
NG
Check the
“Speakers setting”
Change to
“TV Speaker”
“Audio System”
“TV Speakers”
Symptom
improvement
improvement
Symptom
improvement
improvement
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