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Can't find service manual for denon tape deck drm-650s

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Denon DRM 740 tape does not play

Hi,
I had a similar problem with A Mitsubishi cassette deck, several years ago.
The actual problem, is a sticking switch/relay/solenoid whichevers applicable in your case.
Without even opening up the casing or tampering with the Unit.
Try constant Stop/fast forward. Stop/rewind. power Off/On. You,ll find after several attempts, the deck will find it,s own stability level. and unstick whatever it is, thats jammed or seized.
As you have,nt used for a long period of time. You,ve gotta Coax it back to full functionality.

If you,ve got lots of patience, you,ll find that this will work.

Mike @ compurepair.

Posted on Mar 16, 2008

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SOURCE: Denon DRM 740 tape does not play

Just bought a unit from a thrift store. Found same problem; FF & RW OK, but play engages then stops. Also noticed buzzing noise when power turned on. Opened unit, found broken capstan drive belt. FF & RW driven from different motor. Buzz was drive motor running freely with no load - when power is on, capstan is driven all the time for fast play/record start. Replaced with rubber band, and it works --- now looking for replacement belt.

Posted on Feb 12, 2009

borg70
  • 14 Answers

SOURCE: required free service manual of DENON DRM 740

Hi,

You can free download sm from elektrotanya:
http://elektrotanya.podzone.net/?q=showresult&megnev=denon&megnev2=740&kategoria=&kat2=schematics


Posted on Jul 08, 2009

  • 61 Answers

SOURCE: Replacement motor

Hi,
You can identify rotation direction of the motor and order one from this site
http://www.studiosoundelectronics.com/cassette.htm

Posted on Sep 28, 2011

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3 Answers

Denon DRM 740 tape does not play


hmmm...sounds like the transport motor/foot are stuck..open it up, and inspect around those items(where the tape actually clamps down) and see if you can see anything in there. Might even be a bug, no fooling..

as to repairs..you are most likely talking some major money, and a long time in the repair depot, which I believe is in Rio..I'll check that for you while you do this part.

Mar 16, 2008 | Denon DRM-740 Single Dual Cassette Deck

1 Answer

Denon DRM-740 stops


This may mean the takeup reel is intermittent or that he cam system of the transport is not getting the correct feedback. I have hd some decks that had very little back tension and they would skew tape- and the audio would be gone before they would shut off. The deck need restorative work done to it and now is the time before is eats all your tapes up.

Feb 22, 2014 | Denon Audio Players & Recorders

1 Answer

Denon DRM710 cassette deck. I need to know the actual output impedance of this machine. Or the minimum load it should "see." Have lost my manual which has the specs. Thank you.


Just curious, what load are you having problems with? It's a cassette deck, not an amplifier. Most Line Level outputs work just fine with other devices' Line Level inputs.

Aug 21, 2011 | Denon DRM-555 Dual Cassette Deck

2 Answers

Free service manual required


www.manuals-in-pdf.com/plist-74-771.html

Apr 13, 2009 | Denon DRM-740 Single Dual Cassette Deck

3 Answers

Required free service manual of DENON DRM 740 The system hangs after WELCOME


Hi,

You can free download sm from elektrotanya:
http://elektrotanya.podzone.net/?q=showresult&megnev=denon&megnev2=740&kategoria=&kat2=schematics


Apr 13, 2009 | Denon DRM-740 Single Dual Cassette Deck

1 Answer

Replacement motor


Hi,
You can identify rotation direction of the motor and order one from this site
http://www.studiosoundelectronics.com/cassette.htm

Apr 10, 2009 | Denon DRM-555 Dual Cassette Deck

3 Answers

Denon DRM 740 tape does not play


Just bought a unit from a thrift store. Found same problem; FF & RW OK, but play engages then stops. Also noticed buzzing noise when power turned on. Opened unit, found broken capstan drive belt. FF & RW driven from different motor. Buzz was drive motor running freely with no load - when power is on, capstan is driven all the time for fast play/record start. Replaced with rubber band, and it works --- now looking for replacement belt.

Apr 12, 2007 | Denon DRM-740 Single Dual Cassette Deck

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