Greetings All,

Denon DP-1200 Direct Drive Record Player - Turntable

Would anyone have a circuit/schematic or any service information for this
turntable please?
Fault: erratic speed, on both 33 & 45.

Thanks

Colin

On Mon, 10 May 2010 11:34:39 +1000, "Colin Horsley"
put finger to keyboard and composed:

Denon DP-1200 Direct Drive Record Player - Turntable

Would anyone have a circuit/schematic or any service information for this
turntable please?
Fault: erratic speed, on both 33 & 45.

Try looking for a similar model he
http://www.vinylengine.com/library/denon.shtml

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

Colin Horsley wrote:
Greetings All,

Denon DP-1200 Direct Drive Record Player - Turntable

Would anyone have a circuit/schematic or any service information for
this turntable please?
Fault: erratic speed, on both 33 & 45.

Thanks

Colin

**Check the magnetic sensor (looks like a cassette deck record/play head),
sited near the inside rim of the platter. If it has a broken wire, or if it
is sited too far (there should be a fore and aft adjustement) from the
inside rim (where the magnetic information is recorded) then speed may be
erratic.IME, these things are pretty reliable, but I have seen the odd
sensor head problem. Be careful not to damage the magnetic strip.


--
Trevor Wilson
www.rageaudio.com.au

Colin Horsley wrote in message
...
Greetings All,

Denon DP-1200 Direct Drive Record Player - Turntable

Would anyone have a circuit/schematic or any service information for this
turntable please?
Fault: erratic speed, on both 33 & 45.

Thanks

Colin







If it has 1/2 speed setting pot/s check they are not worn/dirty.


--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://diverse.4mg.com/index.htm

"Colin Horsley" wrote in message
...
Greetings All,

Denon DP-1200 Direct Drive Record Player - Turntable

Would anyone have a circuit/schematic or any service information for this
turntable please?
Fault: erratic speed, on both 33 & 45.

Thanks

Colin






I fixed a similar Denon (might have been the same model) which had a bad
drive transistor (TO-220 package). It was opening up emitter-base.
The turntable would run for a bit, then get erratic and even stop
altogether.
The coarse or fine speed adjustment pots are a more common (generic)problem;
often cleaning them will fix.

Mark Z.