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2013-02-15 by evening1
Ive got one missing - I'd hoped it might be inside the chassis but no luck. These aren't like Pratt-Read springs. one side of the spring is flanged and the other is a loop. best, jmw
2013-02-15 by timothy kosiorek
2013-02-15 by jammie
----- Original Message -----From: evening1Sent: Friday, February 15, 2013 3:11 PMSubject: [vintagesynthrepair] WTB- Key Spring for an Elka Rhapsody 610 (black key)Ive got one missing - I'd hoped it might be inside the chassis but no luck.
These aren't like Pratt-Read springs. one side of the spring is
flanged and the other is a loop.
best,
jmwNo virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.2899 / Virus Database: 2639/6103 - Release Date: 02/14/13
2013-02-15 by grantpbt
Does anyone know how to get into the higher numbered test modes on an original DX7? The Test Mode in my EPROMs only go up to test 8 and I need something like 9, 10 or 11 to test what appears to be flakey SRAM. Is don't have a cart. GB PS. My EPROMs are v1.8 and Special Edition.
2013-02-15 by Narfman96 - Narfland Studio
Hi Grant, It seems like the later rev eproms were missing some of the higher numbered tests. I'm positive the SER7 is... Have you tried swapping the RAM chips with each other and seeing if the problem changes?
>________________________________ >From: grantpbt <grantbt@...> >To: vintagesynthrepair@yahoogroups.com >Sent: Friday, February 15, 2013 1:04 PM >Subject: [vintagesynthrepair] DX7 Test Modes > > >Does anyone know how to get into the higher numbered test modes on an original DX7? The Test Mode in my EPROMs only go up to test 8 and I need something like 9, 10 or 11 to test what appears to be flakey SRAM. Is don't have a cart. > >GB > >PS. My EPROMs are v1.8 and Special Edition. > > >
2013-02-15 by evening1
2013-02-16 by scituate_mass
Check with Bob at Sounddoctorin: http://sounddoctorin.com/synthtec/synth.htm He sold me some Farfisa springs - I think he has a huge graveyard of keyboard beds and key parts. It might also be possible to use Crumar parts... not sure. best - DT --- In vintagesynthrepair@yahoogroups.com, evening1 <evening@...> wrote:
> > They are very similar except the Elka has a loop a one end. I may be able > to bend one side of the fatar spring though. Thanks for the suggestion. > > jmw >
2013-02-17 by grantpbt
Thanks for the info. As it turns out v1.7 has the RAM/ROM test, v1.8 and SER do not. There are 3 SRAM chips on the Vabatt supply and only two are in sockets. If I move the two chips that are socketed the problems definitely change. Depending on where the RAM chips are it kind of passes. The LCD flashes error for a moment, then says OK. My old eprom programmer had a ram test function, but the new one doesn't. :-( I will now have to wait for some SRAMs since I don't have any around. One other curious thing about this synth (I was doing an E!-ectomy on it), is that the Vbatt voltage was not making it to the chips. Not sure what happened there and have not removed the main pcb to look at the bottom. I replaced the battery with a small board of my own, along with my own diode and that is working properly now. It's almost like the battery trace on the bottom of the PCB is blown, but I find that hard to believe, unless there was maybe a screw floating loose or something... but the battery had been changed by someone else (butcher job really), so maybe they trashed the trace. gb --- In vintagesynthrepair@yahoogroups.com, Narfman96 - Narfland Studio <narfman96@...> wrote:
> > Hi Grant, > Â > It seems like the later rev eproms were missing some of the higher numbered tests. I'm positive the SER7 is... > Â > Have you tried swapping the RAM chips with each other and seeing if the problem changes?
2013-02-18 by Adrian Corston
Check with Bob at Sounddoctorin:
http://sounddoctorin.com/synthtec/synth.htm
He sold me some Farfisa springs - I think he has a huge graveyard of keyboard beds and key parts.
It might also be possible to use Crumar parts... not sure.
best - DT
--- In vintagesynthrepair@yahoogroups.com, evening1 wrote:
>
> They are very similar except the Elka has a loop a one end. I may be able
> to bend one side of the fatar spring though. Thanks for the suggestion.
>
> jmw
>
2013-02-18 by jammie
----- Original Message -----From: Adrian CorstonTo: evening@...Sent: Monday, February 18, 2013 12:07 AMSubject: Re: [vintagesynthrepair] Re: WTB- Key Spring for an Elka Rhapsody 610 (black key)
If Bob has none (unlikely!) then I have most :-( of a for-parts 610 and can oblige.
Cheers,
A.
On 17/02/13 6:13 AM, scituate_mass wrote:Check with Bob at Sounddoctorin:
http://sounddoctorin.com/synthtec/synth.htm
He sold me some Farfisa springs - I think he has a huge graveyard of keyboard beds and key parts.
It might also be possible to use Crumar parts... not sure.
best - DT
--- In vintagesynthrepair@yahoogroups.com, evening1 wrote:
>
> They are very similar except the Elka has a loop a one end. I may be able
> to bend one side of the fatar spring though. Thanks for the suggestion.
>
> jmw
>
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.2899 / Virus Database: 2639/6107 - Release Date: 02/16/13
2013-02-19 by evening1
is this the spring if its like this its made by fatarVersion: 2013.0.2899 / Virus Database: 2639/6107 - Release Date: 02/16/13----- Original Message -----From: Adrian CorstonSent: Monday, February 18, 2013 12:07 AMSubject: Re: [vintagesynthrepair] Re: WTB- Key Spring for an Elka Rhapsody 610 (black key)
If Bob has none (unlikely!) then I have most :-( of a for-parts 610 and can oblige.
Cheers,
A.
On 17/02/13 6:13 AM, scituate_mass wrote:Check with Bob at Sounddoctorin:
http://sounddoctorin.com/synthtec/synth.htm
He sold me some Farfisa springs - I think he has a huge graveyard of keyboard beds and key parts.
It might also be possible to use Crumar parts... not sure.
best - DT
--- In vintagesynthrepair@yahoogroups.com, evening1 wrote:
>
> They are very similar except the Elka has a loop a one end. I may be able
> to bend one side of the fatar spring though. Thanks for the suggestion.
>
> jmw
>