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TROUBLE SHOOTING GUIDE
NO POWER
DOES 150V APPEAR BETWEEN THE GT602 AND GROUND
I
1
1
I
YES
I
C?
1
DOES 300V OVER APPEAR BETWEEN
601
1. DISCONNECT CN
PIN#1 AND #4 OF D601 ?
I
2. RECHECK 150V APPEAR BETWEEN
GROUND
THE GE601 AND
I
YES
I
F601, SWl,2
D601
NTH601,602
Circuits Checked:
*
Power Regulator Circuit
*
Protector Circuit
*
Horizontal Sync Circuit
~
1
IC601,603
0601,602
1
I
NO
I
1
1. DISCONNECT CN603
2. RECHECK 150V APPEAR
BETWEEN THE GT601
AND GROUND
VIDEO BOARD
0101,102,103,104
0106-109,0111-114
NO LED LIGHT UP
DOES 16V APPEAR BETWEEN THE R631 AND GROUND ?
CHECK NO POWER
32
I
YES
I
1
LED DIODE
DEFBOARD
IC301,401
0409,411
D415,420
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