Sharp DT-200, Service Manual

Page: 24 / 82

24
XV-Z90U
DT-200
TROUBLE SHOOTING TABLE
Yes
No
Checking of Basic Operation
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Yes
No
Does the digital RGB input
operate normally?
Does the video input operate
normally?
Is the component input acting
normally?
Is the analog RGB input acting
normally?
Is the user menu displayed?
Does the cooling fan rotate and
does the lamp light up?
Go to "Checking of Power Unit".
Go to the "Check of IC2002 and
around I/O".
Go to "Checking of Lamp Lighting-up"
Check the formatter circuit and
its periphery.
Check of IC6004 (AD) or
IC3104 and check of analog
RGB input
Is there input signal at pins
(16), (18) and (20) of IC3104?
Check of IC502 of the DVI-
TAN1 PWB and peripheral
circuits.
Go to "Checking of Video
Input". Is the input signal of
IC3105 coming?
Check IC3102 and its
peripheral circuit.
No
Check IC3104 and its
peripheral circuit.
No
Check IC3105 and its
peripheral circuit.
Does the POWER LED light up or
flicker in red or green?
End
Does the set operate by the set's
key or the remote controller's
power key?