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Je suis audiophile belge, électronicien et créateur d'enceintes acoustiques.
J'ai apprécié la qualité des documents fournis. Ils sont très lisibles, ils peuvent être agrandis sans problème et ils sont complets. Pour moi, c'est parfait. Pour cette qualité, je suis d'accord de payer. Et le système de paiement et d'envoi est simple. Merci, continuez comme cela.
Frédéric
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The cover page was a little scary, very dark but readable. The remainder of the document was better copy and easily readable. Why would I give 5 Stars? (1) PRICE, (2) AUTHENTICITY, It was the real deal, filled with service information, including the specific information I required. (3) PRIVACY, I didn't start to get slammed with spam. (4) EASY TRANSACTION. Painless. (5) COMPLETE, I have found several manuals here, that I could find nowhere else. (6) I will be a repeat customer!
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Well done!!! I found what I need to have, indeed!
Furthermore, due to my hobby is repairing vintage equipments, I added this web site in my desk toolbar because I have in mind to search further service manuals. Thanks a lot www.owner-manuals.com !
Regards, Maurizio
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Again very good service manual, this time very fast download. AAAAA+
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Ckear manual, well reproduced with plenty of overlap on critical pages.
MD-MT290H
� Recording/playback operation.
Insert a low reflection disc, and ascertain audio output by normal playback, and then set TEST REC mode. Change MSL from 00H to 80H by the control setting of EEPROM. After completing the operation, return in to 00H. Does the head move down, failing to start record even when the continuous record mode is set after address ? Yes Does the RF waveform appear at TP201 when recording/ Playback is performed. No Does level of pins 69 of IC401 and pin 2 of change depending on record and playback ? Yes Yes No Check voltage of pins 89 and 90 of IC201, pins 17, 18, 20, and 21 of IC601, pins 8 and 9 of CN601. Check whether disc is record-inhibited.
No
Check periphery of IC401 and IC101.
Is RF pattern output from IC201 pin 36, 37 ? Yes Check whether there is any damage in IC101, periphery of laser diode. Check for defects of IC351 head, flexible PWB.
No
Check for soldering failure of IC201 .
Check whether input waveform is observed on the pins 3 and 4 of IC501. Yes
No
Check whether the audio signal line between IC501 and J701 is defective.
Is the output waveform output to the pin 9 of IC501 ? Yes Check the periphery of IC501 and the waveform of the pins 97, 100, 101, 102 of IC201.
No
Check whether the pin 16 of IC501 and the pin 108 of IC201 are in H state.
� 35 �
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