XV-Z10E (serv.man13). (10) Troubleshooting table - Sharp Projector Service Manual (repair manual). Page 3

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36
XV-Z10E
YES
YES
YES
YES
YES
NO
Checking the 
microprocessor circuits
Is there about DC3.3V 
applied between pins (3) 
and (5) of IC1703?
Check IC1703 and its 
peripheral circuits, or IC1702 
and its peripheral circuits.
Is the lamp cover or filter 
cover tightly closed? Or is 
the P2006(LF) jack tight 
in position?
Check IC2002 and its 
peripheral circuits.
Check IC8202, IC8203, 
IC2601 and their 
peripheral circuits.
Check IC1704 and its 
peripheral circuits.
NO
Is there about DC2.5V 
applied between pins (5) 
and (8) of IC1704?
NO
Check IC8009 and its 
peripheral circuits.
NO
Check the fan for unusual 
run. Or check IC8003 and 
its peripheral circuits.
NO
Is there about DC2.5V 
applied between pins (3) 
and (4) of IC8009?
Is there about DC3V 
applied at pin (21) of 
IC2002? Check the D0 thru 
D7 signals with an 
oscilloscope: Are there 
pulse signals?
Close the lamp cover or 
filter cover tightly. Or 
insert the P2006(LF) jack.
YES
Check IC8010, IC8011 and 
their peripheral circuits.
NO
Is there 133 MHz clock 
output at pin (6) of IC8010? 
Is there 40 MHz clock 
output at pin (6) of IC8011?
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