Sony KLV-22EX300 Service Manual page 57

3-1-5. Panel ID Error
Green & Amber blinking
Check TCON_ON
at FB5619
on the BAA Board
High
Check
TCON_VCC_12V
1) at JL6217
(non-motionflow models)
2) TCON_12V
At G*Board
(Motionflow models)
OK
Check F6200 for
non-motionflow models
3-2. Audio Problem
3-2-1. Flowchart A
Audio Problem
* V1 = Video1, V2 = Video2,
V3 = Video3, D1 = Component1
Low
BAA Board
NG
G* Board
about 5V : 22" Model
about 12V : ex. 22" Model
NG
BAA Board
OK
Harness check:
1) TCON to BAA board
2) TCON to G* board
3) LVDS cable
OK
Change BAA
OK
Panel(T-con)
Main Speaker No
Sound
Mon Out No
Sound
HP Out No Sound
*V1, V2, V3, D1 or
PC/HDMI analog
no sound?
Analog RF
no sound?
HDMI Audio
no sound?
USB Audio
no sound?
– 57 –
KLV-22, 26, 32 EX300, 32, 40, 46 EX400
NG
Harness
NG
BAA Board
Note:
G* - Power Board
Refer "Main
Speaker No Sound"
Refer "Mon Out
No Sound"
Refer "HP Out
No Sound"
Refer "Analog
Audio Input
No Sound"
Refer "Analog RF
No Sound"
Refer "HDMI Audio
No Sound"
Refer "USB Audio
No Sound"
RM-GA019