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PIONEER XRA550MD
Service Manual


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

Description of PIONEER XRA550MD 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.

The manual is available in languages: English

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Text excerpt from page 105 (click to view)
XR-A550MD

¶ Disc loading is incorrect
Is disc loaded when it is inserted? NO Is Pin 4 of CN1601 set to "L"? YES Does either Pin 23 or 24 of IC1601 change? YES NO NO Check IC1401. NO Check CN1601 and SW1956. YES

Does either Pin 30 or 31 of IC1601 change? YES Check the CN1604.

NO

Check CN1604 and IC1601.

YES Does the system eject when the MD removal button is pressed? YES The disc table retracts after ejection is completed. YES Check CN1601 and SW1956. NO

¶ The system does not playback
The system play back neither reflection discs. NO The system does not playback only high-reflection discs. YES Is Pin 93 of IC1401 set to 1.02V±0.3V in Test mode, with high-reflection disc inserted? NO YES YES NO YES Go to "CHECKING BY TEST MODE". NO The system does not play back only low-reflection discs. YES Is Pin 93 of IC1401 set to 2.06V±0.3V (recording possible), 3.2V±0.3V (recording prohibit) with low-reflection disc inserted?

Go to "NORMAL PLAYBACK" after readjustment.

Check SW1951/SW1952, MD MECHA SW Assy and CN1601.

105

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