Sharp DT-200 Service Manual download pdf (Page 24)

XV-Z90U

DT-200

TROUBLE SHOOTING TABLE

Yes

Checking of Basic Operation

Yes

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.

Check IC3104 and its

peripheral circuit.

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?

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Sharp DT-200 Service Manual Page 24

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