HI Sam

Thanks for the comments.
Last night, in a 'well it doesn't work at the moment so it can't get
any worse' mood, I did a bit of 'open heart surgery' on the offending
motor.

It's in a little tin can - and by carefull levering with a small
screwdriver I was able to get the 'lid' off the can - after which the
motor and the control pcb could be winkled out of the can.

Further dismantling separated the motor itself from the pcb - and
showed that the motor was reading short-circuit.

Having reached the point of no return g - I dismantled the motor,
and found that there was an amount of something or other between the
segments of the armature. Careful cleaning, followed by a tiny drop of
contact cleaner - reassembled the whole thing - and, lo and behold,
the motor spins !!

Put it all back together and everything works......

I'm not sure about long-term reliability g - and it would probably
be a better job long-term with a replacement motor - but I only need
the deck for a quick recording project (taping hymns for our local
Church) - so provided it lasts long enough for that I'm happy....

Thanks again for your help
Adrian
Suffolk UK

On Thu, 24 Feb 2005 09:16:55 +1100, wrote:

Hi Adrian,

I dont know who would supply them in the UK - they're not a difficult
item to obtain here and i expect the same would apply over there.

Get a copy of a magazine called "Television" - it's a UK publication
with plenty of parts suppliers advertisements.

Cheers,
Sam T

On Wed, 23 Feb 2005 17:56:52 +0000, Adrian Brentnall
adrianthepapersand the wrote:

Hi All
My old (1980's) Marantz SD230 cassette deck 'died',,,,, suddenly !.
Symptoms - lights on - but no reponse to the 'play' button.

A quick check of the voltages shows that 'something' appears to be
pulling more current than it should, puling the main DC rail down from
19V to about 6V.

Disconnecting the multi-way connector that drives connects to the
drive motor and the play / record / pause switches restores the DC
rail to nominal.

12V dc applied direct to the motor results in a current of about 400mA
- but no rotation. Is it a fair assumption that the motor's at fault ?

If so - anybody know where I could find a replacement - motor is
marked MMI-6A2LK - or is it one of those things that won't be
economical to source / repair ?

Thanks in advance
Adrian
Suffolk UK
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