Sony KDL-32EX40B / KDL-32EX43B / KDL-40EX40B / KDL-40EX43B Service Manual ▷ View online
KDL-32/40EX4xB Series(AEP/UK)
29
TROUBLE SHOOTING
6) 7 times blinkings (Temperature Error)
7 times Blinkings
Setting circumstance
is OK?
Temperature,
Ventilation, etc.
BAL Board
Set to another
Location, etc.
Change BAL Board,
and Aging a few hours
Panel
5) 6 times blinkings (Backlight Error)
6 times Blinkings
Check
PANEL_FAIL at
JL2565
on the BAL Board
G* Board
BAL Board
Under 2.65V
Change G* Board
Panel (T-con)
NG
OK
NO
YES
NG
OK
Over 2.65V
KDL-32/40EX4xB Series(AEP/UK)
30
TROUBLE SHOOTING
3-5. NO PICTURE
No Picture
Press HOME Key
XMB (Menu) displayed?
BAL Board
Replace
the LVDS Harness
LCD Panel
(T-con)
Harness
(LVDS)
Check
BL_ON at JL2566
on the BAL Board
BL_ON:H
BAL Board
Check Harness
(Between G* Board
to BAL Board)
Harness
(G* to BAL)
BL_ON: not H
Change BAL Board
G* Board
NO
YES
NG
OK
NG
OK
NG
OK
PANEL_VCC
At JL3806 on the
BAL Board
G* Board
YES
NO
about 12V
KDL-32/40EX4xB Series(AEP/UK)
31
TROUBLE SHOOTING
3-5. NO PICTURE
BDP NO PICTURE
No Picture
Check Internal
HDMI Cable
HDMI Cable
Connection
Replace BDP Unit
BAL Board
Repair BDP unit
(see BDP unit
repair guide)
Check harnesses
between BAL Board,
HI Board and BDP Unit
Harness
NG
OK
NG
OK
NG
OK
KDL-32/40EX4xB Series(AEP/UK)
32
TROUBLE SHOOTING
3-6. NO SOUND
No Sound
Check the Speaker
Harness
Speaker Harness
Replace
the BAL Board
BAL Board
Speaker
NG
OK
NG
OK
Check the
“Speakers setting”
Change to
“TV Speaker”
“Audio System”
“TV Speakers”
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