Sansui SV3215 LCD, Service Manual

Page: 19 / 52

18
5. Trouble Shooting Flow Chart
STEP 1.
NO NO
YES YES
YES YES
NO
NO
YES
YES
OK NG NO YES
No Display
( Black )
LED ON
?
Push the power
ON/OFF
switch
LED Color
change ?
Check IR/LED
board
？
Check Keypad
Board
？
LCD TV
ON?
Check
Video&
Audio
Function
C0N1
Pin7
Active
Check the D-SUB
37Pin board
C0N1-Pin7
Check Inverter
Power (24V)of
LCD Panel, OK?
B
Display ?
Check
Video&
Audio
Function
A
Change AD
Board BOX
Check AC
Socket ?
Change AC
Socket Fuse
C