[sdiy] DW8000 CMOS ram

[harrybissell at copper.net]

I'd wonder if the 2.6V is too low
for data retention ???   Is the
backup battery good ???

H^) harry



>
>
>
>---- Original Message ----
>From: tshire at charter.net
>To: synth-diy at dropmix.xs4all.nl
>Subject: RE: [sdiy] DW8000 CMOS ram
>Date: Fri, 12 Jan 2007 14:06:40 -0500
>
>>Fellers.....
>>
>>Working on a DW8000 that is refusing to keep presets in cmos. It
>came to me
>>with the battery (user replacement attempt) was reverse polarity.
>Replaced
>>with a new 2032, loaded factory banks, verified, all ok. Power off,
>back
>>on.....nothing. Tried again...nothing. Replaced the 6116 that holds
>the
>>presets. Wash, rinse, repeat....same deal. VCC is present at pin 24
>(2.6v).
>>
>>So what gives? Seems it should be ok now. Since it will verify, the
>data is
>>in the ram with pwr on. Ideas?