Hello!
I have an ACA500Plus I bought some years ago. I did not used it for years. Yesterday I decided to take it for a ride and unfortunetely a transistor blew up. I plan to fix it myself, it is component Q1 on the circuit board and It is near Aux Card Slot. I was using a 4gb Hitachi Microdrive, never had any problem, but yesterday I a connected my Amiga to a GBS-C Upscaller and noted that the system started to have what appear to be power supply issues and then smoke. Maybe unbalanced ground/circuit reference. Anyways I digress.
Can you please tell me what is exactly component Q1 on ACA500Plus board for Amiga 500 (is it a bc850c transistor)? As I said it blew up, and I cannot see any reference. I suppose it is the same as Q2 or Q3. Q2 and Q3 are marked as "2GW" - this is manufacturer specific, so I can only guess.
The card works, aux slot does not read anymore.
I am seding attached photos.
Thank you for your help in advance!!! Regards!
Luiz Eduardo Giampaoli