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The item received was as described, as expected. I was pleased with the order. Thank you.
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Superb rendition. Drawings (schematics) complete and unabridged. I do a great deal of vintage audio restoration. Documentation is essential for successful repairs. I have found sources over the years that offer good documentation, but rarely all that is necessary. Owner's Manuals has filled that void with complete and legible documentation. They have narrowed my "favorites" to a more manageable collection. This Denon manual in particular contained the latest revisions level, and offered alterations favorable to updating the item. The Illustrated Parts Breakdown (IPB) was well enough detailed to simplify part symbols and physical locations. You will not be disappointed!
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Clear and concise. Saved me a lot of time and money.
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Superb manual. Exactly what I ordered and made available in a very timely manner.
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very fast detailed and accurate hope to do business again
5 Troubleshooting
5-1-13 High Voltage Failure WAVEFORMS
3
IC401 Pin 6 OSC pulse exists?
No
Check and replace IC401 and +12 V line.
3 2.00 V (IC401, #6)
Yes No
10
Q402 Gate driving pulse exists?
Check and replace Q401 and Q423.
Yes
11
CH1 P-P = 2.00 V CH1 RMS = 5.868 V
Q402 Drain pulse exists?
No
Check and replace D401, Q403 and L402.
10 2.00 V (Q402, Gate)
Yes Done
CH1 P-P = 2.00 V CH1 RMS = 7.692V
5-1-14 ABL Failure
11 50.0 V (Q402, Drain)
Input full white pattern to monitor.
IC101 Pin 8 input exists and varies with different patterns? Yes Check CN102.
No
Check and replace IC101.
CH1 P-P = 50.0 V CH1 RMS = 73.7V
T501 Pin 8 output exists?
No
Check and replace T501.
Yes IC201 Pin 26 output exists and varies with different patterns? Yes Done No Check and replace IC201.
AQ17KS
5-7
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