Sony KLV-22EX300 Service Manual page 62

KLV-22, 26, 32 EX300, 32, 40, 46 EX400
3-3. Video Problem
3-3-1. General
Picture On Screen
Distorted Or Missing
Backlight
turns ON?
Yes
Tuner, OK?
Yes
Video 1, OK?
Yes
Monitor Out, OK?
Yes
Video 2, OK?
Yes
Video 3, OK?
Yes
3-3-2. TUNER
Tuner Problem
Check RF source cable
and antenna
OK
Check C6346
= +5V?
Check F6304
OK?
Raster, OK?
Tuning, OK?
A
RM-GA019
Check LED 6x
times blink?
No
No
Refer "Tuner
Problem"
No
Refer "Video 1
Problem"
No
Refer "Monitor
Out Problem"
No
Refer "Video 2
Problem"
No
Refer "Video 3
Problem"
NG
Change RF cable and antenna
NG
OK
NG
OK
NG
OK
NG
OK
Check "R1056
Change BAA board
Yes
No
Power Saving
Component, OK?
Change BAA board
Change BAA board
OK
= +33V?
NG
– 62 –
Refer to Power Troubleshoot (STANDBY LED
BLINK 6x times blinking
Check Eco
Yes
ON?
No
No
Yes
No
HDMI, OK?
Yes
No
PC, OK?
Yes
Finish
A
Check LVDS
harness
NG
connection
between BAA
board, OK?
OK
Refer to IM Eco
Power Saving
Setting
Change
BAA board
Refer "Component
Problem"
Refer "HDMI
Problem"
Refer "PC Problem"
Reconnect LVDS cable
or change new LVDS
cable