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!
very fast detailed and accurate hope to do business again
Text excerpt from page 39 (click to view)
Main PCBs Trouble Diagnosis
7-1-3. When Control Key does not operate
Check Start
N After turn on the power, does LED turn on red light?
1. Check AC connection 2. Check Power S/W ON 3. Check other PCBs
Y
After ST-BY on Does LED turn on green light?
N
Check the connection of KEY PCB to MAIN PCB -> Check the connection between KEY PCB and MAIN PCB
Y
Is output first pin PW7 normal?
N
1. Replace the CON NECTOR 2. Replace KEY PCB
Y
Check Main PCB
A. First check connection, and then check the output of first pin of PA912(ST-BY 3.3V) B. Check waveform first pin and third pin of PA911. If waveform does not appear, replace connector or KEY PCB. -main TP : RC398, RC399
