From Kenny Balys Sent Tue, Jan 29th 2019, 15:47
From Kenny Balys Sent Tue, Jan 29th 2019, 15:47
Thanks for the tip. I just finished the surgery and the 2032 holder went in so perfectly that I will just go with that for now. Hoping this battery won't vomit acid everywhere like the last 2 batteries. I removed C40 and R91, replaced R91 with a 1N4148. Checked the voltage across the RAM chip and its ok. (2V to 5.5V needed for data retention, very forgiving) Mine has a Toshiba 5514APL-3 memory chip. The standby current consumption at higher than room temperature is rated 1uA and the CR2032 (as you stated) is 200000 uAh so that gives me 200000 hours or 22 years assuming no leakage or other factors. If it had the higher power 5514AP chip then it pulls 20uA which gives only 10000 hours or 14 months with a CR2032... not very good. Lucky for me, mine has the APL RAM chip so I should be ok. On 29.01.19 15:21 , Sam Mims wrote: > A low battery won't cause any funny operation - it's only function is to store > program data. > > That said, I don't know if a 2032 is a strong enough replacement. It is only > 200mAh, and the original battery is much higher. A 2032 might run out of juice > way too quickly. We replace the originals with a 1200 mAh lithium battery (plus > the diode to disable the charging circuit). > > Sam Mims > Syntaur > > > On 1/29/2019 7:29 AM, Kenny Balys wrote: >> >> Oh crap... its there. The battery leaked. >> >> So this is the second time I am cleaning the exact same synth. >> >> Sorry for the SPAM. This fault is super well documented. >> >> >> On 29.01.19 13:13 , Kenny Balys wrote: >>> >>> My Polysix just went wonky. The tuning is about a semitone flat >>> and the bank lights are all lit up. >>> >>> I had replaced and repaired the Varta battery damage 10 years >>> ago and then (stupidly?) put in another Varta. >>> >>> Now I have it ripped open and I cannot see any leakage. >>> >>> I am going to change out the battery for a CR2032 in a >>> carrier (with diode charge protection). >>> >>> Looking for advice: >>> >>> Does a low battery level cause flakiness like what I am seeing? >>> >>> Anyone have any experience with this? >>> >>> It looks like I have no acid damage. >>> >>> I was just about to hit record and then this... sigh... >>> >