Hi All,
I've just been working to get my TAF up and running again after a number of years in storage. The machine generally wasn't too bad but it wasn't saving date/time etc. and I found corrosion on the battery terminals (although there didn't appear to be any leakage onto the board). I decided to clean the battery terminals (which resulted in the CMOS RAM working again) but I then started to see problems with the "enter" button/switch not working at all or being inconsistent. I believe this is related to chip U16 which is immediately under the leftmost battery holder. I've cleaned it with a cotton bud and some IPA and now the board thinks the enter switch is permanently closed so it cycles through the setup menu continuously. A subsequent cleaning resulted in the switch not working at all again and the cycle has continued from there.
I don't think there was any leakage from the battery onto this chip as it was working without issue but the cleaning of the battery terminals has resulted in debris that I somehow can't get to interfering this its operation. Anyone got any ideas what to do here? I can't see anything obvious around the chip's pins in terms of debris or leakage/damage.
Thanks in advance,
Kirk
I've just been working to get my TAF up and running again after a number of years in storage. The machine generally wasn't too bad but it wasn't saving date/time etc. and I found corrosion on the battery terminals (although there didn't appear to be any leakage onto the board). I decided to clean the battery terminals (which resulted in the CMOS RAM working again) but I then started to see problems with the "enter" button/switch not working at all or being inconsistent. I believe this is related to chip U16 which is immediately under the leftmost battery holder. I've cleaned it with a cotton bud and some IPA and now the board thinks the enter switch is permanently closed so it cycles through the setup menu continuously. A subsequent cleaning resulted in the switch not working at all again and the cycle has continued from there.
I don't think there was any leakage from the battery onto this chip as it was working without issue but the cleaning of the battery terminals has resulted in debris that I somehow can't get to interfering this its operation. Anyone got any ideas what to do here? I can't see anything obvious around the chip's pins in terms of debris or leakage/damage.
Thanks in advance,
Kirk
, I made a house visit to someone in Dundee last night who was having issues with their TAF (different machine). 