Trouble Shooting Flow Chart - Sansui SV3215 LCD Service Manual

5. Trouble Shooting Flow Chart

No Display
( Black )
?
LED ON
YES
Push the power
switch
ON/OFF
LED Color
change ?
NO
Check IR/LED
board？
Check Keypad
Board？
OK
A
Board BOX
C
NO
Check AC
Socket ?
YES
LCD TV
Check the D-SUB
37Pin board
C0N1-Pin7
C0N1
Pin7Active
YES
Check Inverter
Power (24V)of
LCD Panel, OK?
NG
Change AD
18
STEP 1.
YES
ON?
NO
YES
NO
B
Change AC
NO
Socket Fuse
Check
YES
Video&
Audio
Function
Display ?
Check
Video&
Audio
Function
YES