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Service Manual

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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of SHARP XGP25X Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

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Text excerpt from page 35 (click to view)

Checking the video system
Is the lamp on?


Go to "Lamp fails to light-up". Is specified voltage fed to EA connectors?


Check the power circuit and its parts. Are there signal inputs at pins (9), (19) and (21) of SC401?


Are there signals at pin (7) of IC5555? Are there signal outputs at pins (1),(12) and (14) of SC4303?

No No

Check SC4303,P4303 and their peripheral circuits. (Go to "Checking the output PWB unit".)

Check the IC5555 and its peripheral circuits.

Check IC4311, IC4502, IC4501and their peripheral circuits.

Checking the video unit circuit
Is there video signal output at P401 pin (9).



Check the IC5555 selector switch, terminal voltage and input circuit.

Is there video signal input at pins (76) and (88) of IC4502?

Check the low-pass and buffer circuits of Q4501,Q4502,and Q4508,Q4509.


Are there signal outputs at pins (83) and (84) of IC4502?



Check IC4502,IC4503 and their peripheral circuits (bias).

Check the buffer circuits of Q4503 thru Q4504. Is the signal as specified?



Check Q4503 thru Q4504 and their peripheral circuits.

Check IC4501,IC4311and their peripheral circuits. (Go to "Checking the output PWB unit".)


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