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!
No sound from built-in both L-CH and R-CH Speakers
Check that there is an audio signal to the Audio Out Terminal from all input terminals. (All input are NG.) (Only Audio1 OR Audio2 input is NG.) Replace the OPT/TV Unit
Replace the Rear Jack P.C.B.
(Only Audio3 input is NG.)
Replace the Rear Jack P.C.B. or Front Jack/Operation P.C.B.
(Only Tuner input is NG.) (Only Component 1 OR Component 2 input is NG.)
Replace the OPT/TV Unit or Tuner P.C.B.
Replace the Rear Jack P.C.B.
OK Replace the OPT/TV Unit or Power P.C.B.
No sound from built-in L-CH Speaker only
Press MENU key on the remote and select "Audio" in MENU screen. Then press "OK."
Does the "BALANCE" screen becomes center position? NO Set to the center position. Still NG Swap the Speaker Connectors to confirm the Speaker failure. NO Replace the OPT/TV Unit. YES
Replace the L-CH Speaker.
No sound from built-in R-CH Speaker only
Press MENU key on the remote and select "Audio" in MENU screen. Then press "OK."
Does the "BALANCE" screen becomes center position? NO Set to the center position. Still NG Swap the Speaker Connectors to confirm the Speaker failure. NO Replace the OPT/TV Unit. YES Replace the R-CH Speaker.