Sony KDL-40HX800 / KDL-40HX803 / KDL-40HX805 / KDL-46HX800 / KDL-46HX803 / KDL-46HX805 Service Manual ▷ View online
KDL-40/46HX800,803,805(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-40/46HX800,803,805(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 5V
： 22” Model
about 12V : ex. 22” Model
KDL-40/46HX800,803,805(AEP/UK)
31
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”
KDL-40/46HX800,803,805(AEP/UK)
32
3-7. TV COMMANDER BUTTONS MALFUNCTION
TROUBLE SHOOTING
1) TV button malfunction
Button malfunction
on the TV
BAL to Switch Unit
harness check
Switch Unit
Harness
Switch Unit change
BAL Board
OK
NG
OK
NG
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