A600 – no boot – capacitor acting like resistor
Amiga 600 which didn't boot. Did some measurements on the 555 timer ic's, and I saw the trigger threshold was too low, 1,2 Volt. It should be some where around…
A600 – Monochrome signal on composite
Amiga 600 came in for repair and recap. Beside the recap this the machine had a problem with the composite video signal, it was monochrome. Problem: bandpass filter Z221 was…
C64 Reloaded – IEC not working
The owner of this board tried to install an internal sd2iec adaptor on the internal IEC header. IEC not working anymore.. Let have a closer look.. First I removed…
Don’t use THT caps on SMD pads!!
This is a good example why you shouldn't use THT Capacitors on SMD pads.