Sharp XV-ZW99U - Checking the remote control circuit; No Lamp Light-Up

xv-zw99u
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TROUBLE SHOOTING TABLE (Coutinued)
1 Checking the remote control circuit 1
signal outputs at pins (9) and (10) of
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1
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IC2001, IC2005, IC2009 or nearby I
circuit in trouble.
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1 No Lamp Light-Up 1
Replace with new lamp. Does it light
up?
, ,
Are more than 200V applied across
1
:+rrwh
Are more than 12V applied across
I”’
r-------------~
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Replace F1701.
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_----------_-_~
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Check IC2001.
,No
----------_-__I
No
v
Are more than 3V applied between
(1) and (4) of connector EB?
Yes
I-
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01707 or PC1702 broken.
Are more than 1 V applied between
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Replace.
(1) and (5) of CNlOl?
Yes
Q1701 or (3702 broken. 1
I
I___----_-__--_I
r.--‘-------‘---
I Power unit in trouble. Check all I
I the output pins of connectors EA I
I and EB, for short-circuit or
1 voltage drop.
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L-m.--------,-- A
r-------------_
f R711 or 0701 broken. Replace. w
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----------,,-_I
-------
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*_______,
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Replace the sub-PWB or check the 1
internal elements.
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40