Sanyo ACI-A Training Manual page 33

Trouble Shooting Chart
Startpoint symptom: Dead
No
Is the fuse OK ?
*
I
Yes
Check voltage on both ends of
C607 ?
F
L
Check power primary circuit,
C601 , C602, VA601 , PS601 ,
C607, Q611 , Q612, Q613, C615,
R626, D615,
Secondary circuit, Q631, C641,
R635, VR631 , D641 , Q432,
C435, C436, R636
-1
L
I
+300V
Check voltage on pin 1 of IC651 ?
+
+15V
AC cord, SW601, F601, L601,
R602
Q611 , Q612, Q613, C617, R620,
R621 , R622, D625, C616, R624,
D634, C644, C643, C645, D641 ,
ICOO1, CO07, T611 ,L603, L606,
Q686, Q685, D685
t
No 1(3651, C651 , IC801 , IC802,
Is the power LED lighting ?
> C815, C816, C801 , C828, C81O,
I I
,
Yes
I C809
I
+
Check voltage(+24V) on Q683-
Ov
* D633, R643
emitter
1
+24V
v
Check voltage(+l 30V) on both
Ov
ends of C641
- C641 , D631
+130V or more
t
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Training Manual AC 1Chassis
-33-