Sony KDL-32EX700 / KDL-40EX700 / KDL-46EX700 / KDL-52EX700 Service Manual ▷ View online
KDL-32/40/46/52EX700(WB)
29
TROUBLE SHOOTING
6) 7 times blinkings (Temperature Error or RGB sensor I2C Error)
7 times Blinkings
Setting circumstance
is OK?
Temperature,
Ventilation, etc.
Harness B* to H*
Set to another
Location, etc.
Change the harness
between B* board
to H* board
NO
NG
YES
OK
Change H* board
Change B* Board,
and Aging a few hours
RGB Sensor
Problem
*
OK
B* Board
OK
Panel
* On Self Check Display
000:RGB_SEN -> No count
007:TEMP_ERR -> Increment
007:TEMP_ERR -> Increment
KDL-32/40/46/52EX700(WB)
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
NG
NG
NG
YES
OK
OK
OK
PANEL_VCC
At JL3806 on the
BAL Board
G* Board
YES
NO
about 5V ： 22” Model
about 12V : ex. 22” Model
about 12V : ex. 22” Model
KDL-32/40/46/52EX700(WB)
31
TROUBLE SHOOTING
3-6. NO SOUND
No Sound
Check the Speaker
Harness
Speaker Harness
Replace
the BAL Board
BAL Board
Speaker
NG
OK
OK
NG
Check the
“Speakers setting”
Change to
“TV Speaker”
“Audio System”
“TV Speakers”
KDL-32/40/46/52EX700(WB)
32
3-7. TV COMMANDER BUTTONS MALFUNCTION
1) TV button malfunction
TROUBLE SHOOTING
Button malfunction
on the TV
BAL to Switch Unit
harness check
Switch Unit
Harness
Switch Unit change
BAL Board
OK
OK
NG
NG
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