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The Service Manual was just as expected, complete with schematics and I was able to download it in less than an hour after I ordered it. The only problem with these is that the schematics are hard to read due to the small font. I could remedy this by printing them on a larger printer.
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Very fast, clear and usefull site !
Also this Service Manual are very well maked and with a very good definition !
Very fast download speed !
Recomended Seller !
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The manual you sent me was excellent. It included clear, readable diagrams and a usable parts list. I would surely use your service again. Thanks
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Payments were processed quickly and items were exactly as described. I will use owner-manuals.com in the future for any other manual needs.
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The Technics manual was very clear and I was able to solve my technical problems.
I did not think that anyone kept these manuals and was pleasantly surprised to find them on the Internet and at an affordable price.
I would recommend Owner Manuals as a first source of technical products for ‘dated’ equipment manuals.
Ian
XR-A550MD
¶ The disc motor does not rotate
Do waveforms appear for Pins 24 and 25 of IC1201 at the focus gain rough adjustment step in Test mode? YES Do waveforms appear for Pins 34 and 35 of IC1601 and Pins 1 and 2 of CN1603? YES Replace the DISC MOTOR Assy. NO Check soldering of the substrate of the DISC MOTOR ASSY of IC1601 and CN1601. NO Check soldering and parts of Pins 24 and 25 of IC1201 and the circuits around IC1201.
¶ The tracking servo does not function
Do waveforms appear for Pins 8 and 9 of IC1601, and Pins 1 and 3 of CN1101 at the tracking gain adjustment step in Test mode? YES Replace the Light Pickup. NO Check soldering of Pins 20 and 21 of IC1201, IC1601 and CN1101.
¶ The slide servo does not function
Does the pickup move toward the outer and inner circumference in Test mode? NO Do Pins 22 and 23 of IC1201 change when the pickup moves toward the outer and inner circumference in Test mode? YES Do Pins 28 and 29 of IC1601 and Pins 1 and 2 of CN1602 change when the pickup moves toward the outer and inner circumference in Test mode? YES Does voltage of positive (+) and negative (-) terminals of the Slide Motor change when the pickup moves toward the outer and inner circumference in Test mode? YES Replace the Slide Motor. NO Check soldering connecting to the Slide Motor. Check for disconnection. NO Check soldering of IC1601 and CN1602. NO Check waveforms of Pins 22 and 23 of IC1201. Check parts around IC1201. Check soldering of IC1201. YES Check waveforms of Pins 22 and 23 of IC1201. Check parts around IC1201. Check soldering of IC1201.
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