BenQ PE8700 - DLP Projector - HD, Service Manual

Page: 49 / 97

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C h e c k I C 6 0 1 .
C h e c k p rim a r y
c ir c u it.
I s th e P W M w a v e f o r m o f
P in 6 o f I C 6 0 1 is c o r r e c t ?
C h e c k B D 6 5 1 d a m a g e s ? C h e c k Q 6 0 1 d a m a g e s ?
F u s e B r o k e n ?
I n s id e d io d e s o f
B D 6 0 1 a re s h o rte d .
R e p la c e n e w b rid g e
d io d e .
P in D & P in S o f Q 6 0 1
a re s h o rte d . R e p la c e
n e w
R 6 1 2 ,Q 6 0 1 ,R 6 1 1 ,Z D
6 0 2 ,I C 6 0 1 a n d F u s e .
R e p la c e I C 6 0 1 .
R e p la c e Z D 6 0 1 a n d
I C 6 0 3 .
O p e n R 6 1 2 a n d in je c t
1 2 V to P in 7 o f
I C 6 0 1 .
P r o c e e d to " C h e c k
I C 6 0 1 " .
P ro c e e d to " C h e c k
IC 6 0 1 " .
Y e s
Y e s
N o
N o
Y e s
N o
Y e s
N o