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*1
I
C1
=;
OV
I
No
PC602, D658,D659,ZD652
Yes
TR652, TR653
Failure
Turn the power switch. OFF,
wait 5 seconds then disconnect
C1, C2, C3.
Next turn the power ON and
Check that about 120V
appears at C1.
Yes
I
Failure or A3
I
I
C660, D663, TR652
No
Turn the power switch ON
and Check that about 7V
appears at both ends of R620
Yes
C657,C658,C662,AD602, TR602
CR603, D658, D659, AD652, IC602
No
Failure
PC602, CR603, rC602, TR602
ZD602, D606, D604, R624
R632, R623,C615,C616
C617 Failure
-56-
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