[sdiy] Oberheim Matrix 6 ---- 3.6v Lithium battery replacement.. or not ?

[Tom Wiltshire]

Personally, I'd replace it while I was in there, unless it's already been done and that's a replacement you're looking at.

It might not be dead yet, but if it's original it's 40 years old, which is well past what can be considered "reliable" for a battery!

Tom


> On 7 Aug 2022, at 15:33, Jean-Pierre Desrochers <jpdesroc at oricom.ca> wrote:
> 
> Hi all,
> A friend of mine brought me a working Oberheim Matrix 6 keyboard
> that he was worried about the inner memory lithium battery (BR2032)
> being about to die.. and to replace it.
> Well after a quick check the battery was still in pretty good physical condition (no leakage)
> <image002.jpg>
> 
> and was showing a strong 3.23v on its terminal (AC unconnected)
> So.. In this situation I’m wondering if this lithium cell should be replaced or not.
> I know this keyboard is at least 30-40 years old and many of the coin
> batteries of these vintage keyboards need to be replaced, but..
> And on replacement I thought about soldering a coin battery socket
> on the PCB pads BUT the battery placement on the PCB
> is very close to some IC’s as shown on the picture and
> would need the socket to be raised a little to avoid these IC’s.. I don’t like that.
> I could also buy a coin battery with PCB legs too like this one
> but again, replacement or not ?
> <image004.jpg>
> I don’t know the year of manufacture of this Matrix but here are
> the serial number and BIOS number.
> SN: 7622661
> BIOS: M6R 2.13
>  
> Your opinions are very welcomed.
> Cheers !
> Jean-Pierre 
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