Sony KDL-22PX300 Service Manual ▷ View online
KDL-22PX300(AEP/UK/RUSSIA)
37
TROUBLE SHOOTING
6) 7 times blinkings (Temperature Error or RGB sensor I2C Error)
7 times Blinkings
Setting circumstance
is OK?
Temperature,
Ventilation, etc.
Harness BAL to HLR
Set to another
Location, etc.
Change the harness
between BAL board
to HLR board
NO
YES
NG
OK
Change HLR board
Change BAL Board,
and Aging a few hours
RGB Sensor
Problem
*
OK
BAL Board
OK
Panel
* On Self Check Display
000:RGB_SEN -> No count
007:TEMP_ERR -> Increment
007:TEMP_ERR -> Increment
KDL-22PX300(AEP/UK/RUSSIA)
38
TROUBLE SHOOTING
3-5. NO PICTURE
No Picture
Replace Stand
(PS2 Unit)
BAL Board
PS2 Unit
NG
Symptom
improvement
improvement
NG
Only PlayStation2 input?
All the other input are OK?
No
See
3-5-2. TV SIDE
3-5-2. TV SIDE
3-5-1. PS2 UNIT SIDE
KDL-22PX300(AEP/UK/RUSSIA)
39
TROUBLE SHOOTING
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 GD1 Board
to BAL Board)
Harness
(GD1 to BAL)
BL_ON: not H
Change BAL Board
GD1 Board
NO
YES
NG
OK
NG
OK
NG
OK
PANEL_VCC
At JL3806 on the
BAL Board
GD1 Board
YES
NO
about 5V ： 22” Model
about 12V : ex. 22” Model
about 12V : ex. 22” Model
3-5-2. TV SIDE
KDL-22PX300(AEP/UK/RUSSIA)
40
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”
Only PlayStation2 input?
All the other input are OK?
No
Replace Stand
(PS2 Unit)
BAL Board
PS2 Unit
NG
NG
Symptom
improvement
improvement
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