Trouble Shooting - Sony KLV-26S550A Service Manual

3-1. Flowchart
3-1-1. NO POWER
3-1-2. SOUND NG
SECTION 3

TROUBLE SHOOTING

NO POWER
No Power
YES
Check AC cable connection
YES
STBY_VCC(GT3:6.2V, G4T:5.6V)
CN7000_7pin on BT2 Board
YES
BT2 or Switch Unit NG
SOUND NG
Sound NG
Only speaker out?
YES
AUDIO_VCC(GT3:13V, G4T:15V)
CN7000_1, 2pin on BT2 Board
YES
UI of Audio setting correct?
Volume,TV speaker
NO
Set correctly or reset by menu
NO
AC cable NG
NO
GT3, G4T Board NG
NO
BT2 Board NG
NO
GT3, G4T Board NG
YES
BT2 Board or Speaker NG
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KLV-32S530A, 26, 32, 37 S550A
RM-GA016W
RM-GA016