OK, I grabbed the 10937 display driver data sheet. Had forgotten that
it uses a serial interface. That should simplify the circuit.
Probably just the PIC chip and some small circuitry to adjust
the backlight using the display brightness setting. So really
the interesting part will be the mechanics of fitting it into the
unit. Seems like the old display and possibly the drive chip
will need to be removed to make room. When I get home I
will take the Matrix 6R apart and check out the display board
layout. Also need to make sure there is enough current available
on
the 5V supply to power the backlight.
Bob
From: Daniel Forró
To: oberheim@yahoogroups.com
Sent: Friday, January 17, 2014 7:48 AM
Subject: Re: [oberheim] Matrix-6 display issues?
To: oberheim@yahoogroups.com
Sent: Friday, January 17, 2014 7:48 AM
Subject: Re: [oberheim] Matrix-6 display issues?
As Bob wrote, you can find it in heath dynaco schematics section, the very last line is VFD emulation.
Or here :-)
There's even schematics, and Bob will send PIC code...
Daniel Forro
On 18 Jan, 2014, at 12:31 AM, Dave Garfield wrote:
Hi Bob,Couldn't get your link to show what you described. Do you have a direct link?So, it would be possible to convert a VFD to an LED display, eh? Would LOVE that!Dave GarfieldOn Friday, January 17, 2014 8:07 AM, Bob Grieb <bobgrieb@...>; wrote:Hi,
I converted a vfd to an lcd for another product not too long ago. The command set was a little different so i used a pic to convert from the vfd interface to the lcd one. You can see the result at http://www.tauntek.com/ in the heath dynaco schematics section.
BobFrom: ;Daniel Forró <dan.for@...>;
To: <oberheim@yahoogroups.com>;
Subject: Re: [oberheim] Matrix-6 display issues?
Sent: Fri, Jan 17, 2014 8:24:29 AMSo yesterday I have contacted Noritake Itron with inquiry about both displays. Unfortunately production of both finished few years ago, they haven't any stock, and there's no substitution.Here is info from their Nagoya office (I live near Nagoya):-----------------------------------------------------------Thank you very much for your inquiry this time.But we are afraid to inform you that the requested FG166A2 was discontinued and stock and alternate are not available as German office notified.Further to FIP32A6R, though we are not 100% sure but Noritake should not have substitution, too.We assume that you are intent to repair your music equipment.If so, we would recommend to contact official dealer Oberheim Matrix, but they may have some display stock for the repair inquiry.We are sorry that we can not meet your expectation this time.----------------------------------------------------------We have to deal with it. It's a pity to throw away our beloved instruments just because display will die one day after so many years... There must be some solution and I will study schematics more, but my limited knowledge of electronics is enough good for repairs but not for inventing such modification. Still I believe some clever person can solve this problem and connect standard modern character display with 14pin parallel HD44780 standard.Until this god save our VFD's!Daniel ForroOn 17 Jan, 2014, at 1:04 AM, Daniel Forró wrote:In MKS70 there's FIP32A6R, or maybe FIP32B6R. Probably also discontinued...Daniel ForroOn 16 Jan, 2014, at 11:26 PM, Daniel Forró wrote:That one I need, too...Yes, Noritake Itron still exists and they produce VF displays.Daniel ForroOn 16 Jan, 2014, at 9:52 PM, tim p wrote:Same manufacturer of display as the MKS-70