EX5 ROM upgrade

[random variate]

Hi Romain

Peter confirmed that the IC numbers I labelled on the chips (which correspond to EX5r chip positions) are correct also for the EX5 keyboard.

Just look for the "IC" code on the PCB next to the socketed ROMs.

There is also a further indicator for Low and High chips.

Keep us informed on progress please.

Cheers

Tim
________________________________
From: Rom MUSIC BAR<mailto:xtechcode at gmail.com>
Sent: ‎12/‎02/‎2015 11:18
To: Music-bar<mailto:music-bar at lists.music-bar.org>
Subject: Re: EX5 ROM upgrade

Yes, Thank you Tim !!
And Peter for the advises. By any chance, Peter, did you take pictures  while installing ?

I didn t upgrade yet  cause the chips are still at Joost place :)
I m quite curious and very enthusiast  tho … :)



Romain




On 10 Feb 2015, at 21:24, Peter Korsten <peter at severity-one.com> wrote:

> Some of you may know that I own an EX5 ;-) and that I try to load it with all possible extras. So it's got four additional outputs, SCSI, 64 MB RAM, and 16 MB Flash memory. The one thing really missing was getting the latest OS.
>
> You may remember Tim's (random variate) offer on this list to get you the latest OS. So I took him up on that, and for a very reasonable fee (basically cost price) he delivered the four chips. Replacing them is fairly easy, although I would recommend buying a chip puller. You could perhaps get away with using a small screwdriver, but there isn't really enough space if you only remove the large metal plate in the bottom. (The one you remove if you want to install SCSI or replace the battery.)
>
> Even though I managed to bend two pins between chip and socket - Tim quickly helped identify this problem, which I managed to overlook when doing the visual check - the chips were inserted properly in the end.
>
> Boot up, and everything worked! Large samples now load in a manner of seconds. ;-) OK, the latter is not true, and cannot be solved because of the design of the EX5, but at least this takes care of the bugs (and there have been quite a few) in the earlier versions of the EX5 OS.
>
> Given the price of the upgrade, and given the value your EX5/EX5R/EX7 has for you, I think it's well worth it.
>
> No, I'm not getting paid for this endorsement. :-)
>
> Thanks again to Tim,
>
> - Peter
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