Problem Amiga CD32 was getting black/gray screen after 2-5 minutes. Solution The voltage at the voltage detector (U14) was getting under the threshold of 4.3V, which causes that the reset signal was pulled down, and causes the black/grey screen. I replaced the Voltage detector (u14), the 10K resistor (R629) and capacitor (C629). The last two […]
Tag: repair
Amiga 600 in reboot loop
Amiga 600 which was constantly rebooting. I got this machine as a repair, someone before me tried to do a recap to the machine.. After that it was not working anymore. First thing I tried was to replace the 555 Timer (U14) and the C612 Capacitor, because this is common problem on an Amiga 600. […]
Amiga 1200 black screen on RGB output
Black screen on RGB output can be a broken E263R Ferrite Bead (FB200). Monitor won’t get into RGB mode if there is no 5V on pin 23. I have seen several Ferrite Beads that were broken, and have a much higher resistance (impedance). After replacement 5V is restored and we have RGB signal again.
Amiga 600 IDE port replacement
Amiga 600 with HD boot problems. This board had a recap because it leaked from the caps. Some electrolyte leaked under the IDE header and a corroded the pins. Sometimes after reseating the IDE cable it booted, but mostly it didn’t boot. I removed the IDE header cleaned the mess underneath it and placed a […]
CD32 – blown with wrong supplied power.. and a bug..
CD32 came in for repair, owner accidentally hooked it up to wrong psu.. Result, machine not working anymore.. R801 (0 Ohm) was broken, it was floating between 150 – 1M Ohms. Replaced it with new 0 Ohm resistor and the machine is working again.. tested all main components, and it seems no problems. I found […]