The Mellotron Group

hi.

i'm doing  a lot of recording with #1300 and it started to give me problems. the motor is speeding up, slowing down, stopping and sometimes lurching fast and slow. i have one of Marcus' sms4 boards in it. when i touch the motor control cable connected to the board it seems to make the above mentioned problems go from one to another. maybe it's a short on the cable or the connector. any thoughts and or solutions from any of you owners out there? 

the wires are yellow/white/green/red/ and a double gray, in that order.

i'd really appreciate any help you folks can offer.

thanks,

terry conheady  400s #1300 and #413

 

hi.

i'm doing  a lot of recording with #1300 and it started to give me problems. the motor is speeding up, slowing down, stopping and sometimes lurching fast and slow. i have one of Marcus' sms4 boards in it. when i touch the motor control cable connected to the board it seems to make the above mentioned problems go from one to another. maybe it's a short on the cable or the connector. any thoughts and or solutions from any of you owners out there? 

the wires are yellow/white/green/red/ and a double gray, in that order.

i'd really appreciate any help you folks can offer.

thanks,

terry conheady  400s #1300 and #413

 

I had the same problem. It turned out to be the potentiometer of the pitch control itself. It may not be for you, but when mine was changed the problem went away.

Hope this helps?

Andy K

Sent from my iPad

On 15 Nov 2015, at 04:16, tmconheady@yahoo.com [newmellotrongroup] <newmellotrongroup@yahoogroups.com> wrote:

 

hi.

i'm doing  a lot of recording with #1300 and it started to give me problems. the motor is speeding up, slowing down, stopping and sometimes lurching fast and slow. i have one of Marcus' sms4 boards in it. when i touch the motor control cable connected to the board it seems to make the above mentioned problems go from one to another. maybe it's a short on the cable or the connector. any thoughts and or solutions from any of you owners out there? 

the wires are yellow/white/green/red/ and a double gray, in that order.

i'd really appreciate any help you folks can offer.

thanks,

terry conheady  400s #1300 and #413

On Tue, 11/17/15, Chris Dale unobtainiumkeys@gmail.com [newmellotrongroup] <newmellotrongroup@yahoogroups.com> wrote:

Subject: Re: [newmellotrongroup] model 400 #1300 screwing up
To: newmellotrongroup@yahoogroups.com
Date: Tuesday, November 17, 2015, 4:50 PM


 









Not likely since the cable in
question is from the pitch pot to the SMS. This has nothing
to do with the tape heads.


Okay, sorry I thought it
was the headblock cable.
In this case, yeah
I'd clean the cables and connectors, and proceed from
there.






On Tue, Nov 17, 2015 at
12:40 PM, lsf5275@aol.com
[newmellotrongroup] <newmellotrongroup@yahoogroups.com>
wrote:















 












Not likely since the cable in question is from the
pitch pot to the SMS.
This has nothing to do with the tape
heads.
 

In a message dated 11/17/2015 2:49:46 A.M. Eastern
Standard Time,
newmellotrongroup@yahoogroups.com
writes:
 


If you've got cable rot and
you've moved the cable around, then
you might now have magnetized tape heads as well.


Demagnetize.






On Mon, Nov 16, 2015
at 9:05 PM, lsf5275@aol.com

[newmellotrongroup] <newmellotrongroup@yahoogroups.com>
wrote:


 




Check for a bad solder
joint at both ends of the cable.


 
 

In a message dated 11/16/2015 9:04:38 P.M. Eastern
Standard Time, newmellotrongroup@yahoogroups.com
writes:
 


That's certainly worth trying,
Terry.  I go for
replacing the cable rather than stealing from your
other machine.


On Mon, Nov 16,
2015 at 7:01 PM, Terry Conheady tmconheady@yahoo.com
[newmellotrongroup] <newmellotrongroup@yahoogroups.com>
wrote:


 





hey.
suppose i detach the motor and
install a hand
crank.
i think it's in the cable
as i was able to use it for
a bit by taping the cable in a certain position that
allowed it to play
stable. that, however, stopped working. now all i
get by moving the
cable is real fast or stopped. could i shorten the
cable and solder the
cut end to the plug, or maybe just replace the cable
with a new one or
even use the cable from #413 as i rarely use it
because it still has
sms10 board in it.









On
Monday, November 16, 2015 7:18
AM, "Frank Stickle lsf5275@aol.com

[newmellotrongroup]" <newmellotrongroup@yahoogroups.com>

wrote:





 




I'm pretty sure the whole machine is ruined
forever.

Sent from my
iPad


On Nov 15, 2015, at 2:30 AM,
Andy Kinch kinchmusic@aol.com

[newmellotrongroup] <newmellotrongroup@yahoogroups.com>
wrote:



 


I had the same problem. It turned out to be
the potentiometer of
the pitch control itself. It may not be for you,
but when mine was
changed the problem went away.
Hope this helps?
Andy K

Sent
from my iPad

On 15 Nov 2015, at 04:16, tmconheady@yahoo.com

[newmellotrongroup] <newmellotrongroup@yahoogroups.com>

wrote:



 


hi.
i'm doing  a lot of recording
with #1300 and it
started to give me problems. the motor is
speeding up, slowing down,
stopping and sometimes lurching fast and slow. i
have one of Marcus'
sms4 boards in it. when i touch the motor
control cable connected to
the board it seems to make the above mentioned
problems go from one
to another. maybe it's a short on the cable
or the connector. any
thoughts and or solutions from any of you owners
out
there? 
the wires are yellow/white/green/red/
and a double gray,
in that order.
i'd really appreciate any help
you folks can
offer.
thanks,
terry conheady  400s #1300 and
#413












--


john barrick


*Leo got it right the first time*
*then he added a second pickup and got it
righter*







































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