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3.1 Flowchart
Trouble Shooting Flowchart
1. NO POWER
No Power
YES
Check AC cable
connection
YES
STBY_VCC
(GT2:13.2V, GT3:6.2V)
CN7000_7pin on BT2
YES
BT2 NG
3. PICTURE NG
PICTURE NG
All input have
problem
YES
Backlight on?
YES
UI of some picture
setting correct?
NO
Set correctly or reset by menu
SECTION 3
TROUBLESHOOTING
NO
AC cable NG
NO
GT2 or GT3 Board NG
NO
BT2 Board NG
NO
BT2 Board or GT2, GT3 Board NG
YES
LVDS harness connection
or BT2 board or Panel NG
2. SOUND NG
Sound NG
Only speaker out?
YES
AUDIO_VCC
(GT2:1, GT2:10V, GT3:13V)
CN7000_1, 2pin on
YES
UI of Audio
setting
correct?
Volume,TV speaker
NO
Set correctly or reset by menu
– 9 –
KLV-22, 32 T550A
RM-GA016
NO
BT2 Board NG
NO
GT2 or GT3 Board NG
YES
BT2 Board or Speaker NG
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