Vintage Simmons Drums (UK) Users Group

hello?


On Fri, May 3, 2013 at 11:18 AM, teknikfourteen <inbox@...m> wrote:

> **
>
>
> Thanks Phil...
>
> I ordered this one from Kanda:
> http://www.kanda.com/products/kanda/570910-PM.html
>
> The form factor appears to be very close to the one Simmons used.
>
> Thoughts?
>
> Cheers
> Teknik14
>
>
> --- In Simmons_Drums@yahoogroups.com, "philmurr" <philmurr@...> wrote:
> >
> > Yes, I just used a standard LCD display (as described in the excellent
> recent post about swapping one out in an MTM).
> >
> > Backlight runs on 5v whereas the original one used ~100V - if you need
> to, remove the small transformer (labelled-I think-IC10) inside the unit,
> this converts 5V to 100V. Then tap off a 5V to feed the new backlight.
> >
> > If you check ebay for "16x2 LCD" and choose one that uses a HD44780,
> that should work.
> >
> >
> > --- In Simmons_Drums@yahoogroups.com, "teknikfourteen" <inbox@> wrote:
> > >
> > > Phil... do you have any info on the ADT you used?
> > >
> > > Cheers!!
> > > Teknik14
> > >
> > >
> > > --- In Simmons_Drums@yahoogroups.com, "philmurr" <philmurr@> wrote:
> > > >
> > > > Probably will be.
> > > >
> > > > They're standard 16x2 displays driven by a Hitachi HD44780. The only
> difference may be the backlight (in the Simmons ADT it's driven by high
> voltage which tends to do a bit of damage to the units, newer ones are 5v
> LED). I've swapped out an ADT unit for one I got off ebay for about �4 and
> it works perfectly.
> > > >
> > > > Phil.
> > > >
> > > >
> > > >
> > > > --- In Simmons_Drums@yahoogroups.com, "teknikfourteen" <inbox@>
> wrote:
> > > > >
> > > > > Would anyone know offhand if the LCD Display in the Portakit is
> compatible in the MTM as well?
> > > > >
> > > > >
> > > > >
> > > > > --- In Simmons_Drums@yahoogroups.com, "Mark Frost" <airflamesred@>
> wrote:
> > > > > >
> > > > > > Ah, sorry their search thing seems to be bust it is the N 27 AZ
> order code.
> > > > > >
> > > > > > --- In Simmons_Drums@yahoogroups.com, "teknikfourteen"
> <teknik14@> wrote:
> > > > > > >
> > > > > > > Hmm... Maplin lists it (their part Code: N24AZ) as a 'non'
> backlit Display.
> > > > > > > Thoughts?
> > > > > > >
> > > > > > >
> > > > > > > --- In Simmons_Drums@yahoogroups.com, "Mark Frost"
> <airflamesred@> wrote:
> > > > > > > >
> > > > > > > >
> http://www.maplin.co.uk/supertwist-alphanumeric-lcd-modules-36389#overview
> > > > > > > >
> > > > > > > > Only one colour it seems now
> > > > > > > >
> > > > > > > > --- In Simmons_Drums@yahoogroups.com, "WT" <waveterm@>
> wrote:
> > > > > > > > >
> > > > > > > > > Got a link ?
> > > > > > > > >
> > > > > > > > > WT
> > > > > > > > >
> > > > > > > > > ----- Original Message -----
> > > > > > > > > From: "Mark Frost" <airflamesred@>
> > > > > > > > > To: <Simmons_Drums@yahoogroups.com>
> > > > > > > > > Sent: Tuesday, April 16, 2013 8:39 PM
> > > > > > > > > Subject: [Simmons Drums] Re: Simmons MTM...
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Excellent info - many thanks. I did purchase one a while
> ago and might give
> > > > > > > > > this another go.
> > > > > > > > > For those in the UK, Maplin have a replacement (same screw
> centres)display
> > > > > > > > > in a choice of 3 colours.
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > --- In Simmons_Drums@yahoogroups.com, vout@ wrote:
> > > > > > > > > >
> > > > > > > > > > Hi,
> > > > > > > > > >
> > > > > > > > > > I have installed the new display and it works well, a
> big improvement. I
> > > > > > > > > > had a few small problems when fitting it so I will
> mention them here -
> > > > > > > > > >
> > > > > > > > > > The footprint of the new display (I used) was much
> smaller vertically than
> > > > > > > > > > the original display, so I could not use all the
> original mounting screws.
> > > > > > > > > > I decided to just mount it using the top screws only.
> This works ok and
> > > > > > > > > > the display bottom edge is resting on the lower screws
> so it does not move
> > > > > > > > > > about.
> > > > > > > > > >
> > > > > > > > > > One thing about the mounting screws - they are fitted
> loosely through the
> > > > > > > > > > front panel from the front side, but behind the stick-on
> panel overlay,
> > > > > > > > > > which holds them in place. When I was loosening and
> tightening the
> > > > > > > > > > retaining nuts on these screws, I had to apply pressure
> to the front panel
> > > > > > > > > > where the screw heads are to stop them from turning.
> > > > > > > > > >
> > > > > > > > > > When I fitted the new display and first powered it up, I
> realised it was
> > > > > > > > > > upside down! - the connections are on the top edge, on
> the original
> > > > > > > > > > display they are on the bottom edge.
> > > > > > > > > >
> > > > > > > > > > The connectors on the new display are numbered 1-16,
> this seems to be a
> > > > > > > > > > standardised connection for this type of display. You
> need to desolder the
> > > > > > > > > > ribbon cable from the original display and solder it in
> the same positions
> > > > > > > > > > on the new display (connections 1-14 in exactly the same
> order as the old
> > > > > > > > > > display) This leaves connections 15 & 16 free, which are
> for the led
> > > > > > > > > > backlight (15 is 5v and 16 is ground/0v) You can obtain
> these voltages
> > > > > > > > > > from the main pcb nearby - resistor R7 is connected
> accross the 5v power
> > > > > > > > > > rail so all you have to do is solder a wire to each side
> of R7 (the end of
> > > > > > > > > > R7 nearest to the front panel is +5v) and connect the
> wires to 15 and 16
> > > > > > > > > > on the LCD.
> > > > > > > > > >
> > > > > > > > > > If you unplug the LCD ribbon connector from the main
> board, make a note of
> > > > > > > > > > which way round it goes.
> > > > > > > > > >
> > > > > > > > > > The LCD contrast needs to be adjusted - there is a small
> trimmer on the
> > > > > > > > > > main pcb just behind the display - I had to turn it
> fully anticlockwise to
> > > > > > > > > > get an acceptable contrast - it is ok now, but could be
> better. The reason
> > > > > > > > > > for this is that the original display uses a negative
> voltage for contrast
> > > > > > > > > > adjustment, but the new one I used needs a positive
> voltage. I will
> > > > > > > > > > probably modify this so it gives the proper range of
> adjustment, but for
> > > > > > > > > > now it is usable as is.
> > > > > > > > > >
> > > > > > > > > > Hope that info is of some help if you decide to change
> the LCD, it is
> > > > > > > > > > definitely worthwhile.
> > > > > > > > > >
> > > > > > > > > > I will try and get some photos uploaded to the file
> section soon.
> > > > > > > > > >
> > > > > > > > > > Cheers, vout
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > --- In Simmons_Drums@yahoogroups.com, "teknikfourteen"
> <teknik14@> wrote:
> > > > > > > > > > >
> > > > > > > > > > > How is the MTM LCD Display project coming along?
> > > > > > > > > > > :-)
> > > > > > > > > > >
> > > > > > > > > > > Cheers
> > > > > > > > > > > Teknik14
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > > --- In Simmons_Drums@yahoogroups.com, vout@ wrote:
> > > > > > > > > > > >
> > > > > > > > > > > > Hi,
> > > > > > > > > > > >
> > > > > > > > > > > > I recently bought an MTM and I am also looking to
> fit a backlit
> > > > > > > > > > > > display. The service manual shows that the display
> is a standard
> > > > > > > > > > > > HD44780 controller type - these are available
> everywhere for a few
> > > > > > > > > > > > pounds. There are a couple of things to consider -
> the mounting holes
> > > > > > > > > > > > on most current displays seem to be slightly further
> apart (1-2mm
> > > > > > > > > > > > horizontally) a bit of filing should sort that. Also
> you need to feed
> > > > > > > > > > > > 5v to the backlight - usually pins 15/16 on the
> display or there may
> > > > > > > > > > > > be a separate backlight connection. I've just
> ordered a cheap display
> > > > > > > > > > > > from ebay (�1.50 including delivery!), we'll see how
> it goes.
> > > > > > > > > > > >
> > > > > > > > > > > > Cheers, vout
> > > > > > > > > > > >
> > > > > > > > > > > > --- In Simmons_Drums@yahoogroups.com,
> "teknikfourteen" <teknik14@>
> > > > > > > > > > > > wrote:
> > > > > > > > > > > > >
> > > > > > > > > > > > > Hi all..
> > > > > > > > > > > > >
> > > > > > > > > > > > > Re MTM:
> > > > > > > > > > > > >
> > > > > > > > > > > > > I am in the process of cosmetically reconditioning
> a working MTM:
> > > > > > > > > > > > >
> > > > > > > > > > > > > 1. Does anyone know of a suitable replacement part
> # and source that
> > > > > > > > > > > > > would allow replacing the current LCD "dark"
> display with a new
> > > > > > > > > > > > > back-lit one? Some MTM's had back-lit displays,
> this one does not.
> > > > > > > > > > > > > Would the display that's available for the
> Portakit from a Canadian
> > > > > > > > > > > > > supplier be suitable?
> > > > > > > > > > > > > I don't have access to MTM schematics.. :-(
> > > > > > > > > > > > >
> > > > > > > > > > > > > 2. Does anyone have dead MTM for sale or parts
> available? I'm
> > > > > > > > > > > > > looking for:
> > > > > > > > > > > > > - set of Rack Ears
> > > > > > > > > > > > > - front panel knob for the "Trig out" pot
> > > > > > > > > > > > >
> > > > > > > > > > > > > I just had the case stripped and powder coated and
> the unit looks
> > > > > > > > > > > > > fantastic except for the missing knob (bought unit
> from eBay in this
> > > > > > > > > > > > > condition).
> > > > > > > > > > > > >
> > > > > > > > > > > > > Cheers :-)
> > > > > > > > > > > > > Teknik14
> > > > > > > > > > > > >
> > > > > > > > > > > >
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> > > > > > > > >
> > > > > > > > > ------------------------------------
> > > > > > > > >
> > > > > > > > > Yahoo! Groups Links
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>
>  
>


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