Dear All,
I hope you are well, I am new to this forum and it's my first post
I acquired an A4000 last year and the machine has been working well. However recently it has been losing it's time and date (U177?/U178?) and just this week it stopped registering fast RAM -- a quick hack with DiagROM revealed that the bottom 8 bytes is stuck at FF (U891?)
I knew the machine had previously been patched up -- apparently by someone in the Netherlands?
I am in the process of re-reparing the repair and have just started to take a look. First job was to take off some prime suspect components and give the board a bath in distilled vinegar and a rinse in IPA.
It's showing some patch wires touching the pads. What is the recommended best way of placing my replacement IC's?
Re-solder the patch wires to the pads, pop the IC on top and re-flow hoping the patch wire stays put?
Many thanks