In this post i’m going to show you how to make it technical posible to have 2 drives (Gotek & disk drive) inside a Amiga 500, 600 or 1200. The internal FDD header (CN11) does not have all the needed signals to add 2 drives to this header, it’s imposible to have a DF0 & […]
Tag: amiga 1200
A1200 CIA timer failure
A1200 with timer failure on CIA-A (u7) with amiga test kit (ATK). Removed CIA (U7) Placed PLCC44 socket and new CIA Result.. Timers are working again.
Amiga 1200 without composite
Composite of machine not working. First I though it was the CXA1145 video encoder, because all signal where present, but no composite output. The voltage of the CHROMA_OUT was very low. So the question.. what is causing this? I replaced all small components (resistors & capacitors) between CHROMA_OUT (CXA1145 pin 15) and CHROMA_IN (CXA1145 pin […]
Amiga 1200 meltdown
Received an Amiga 1200 to fix. Someone tried to do a recap on this machine but failed, pads are gone, some are loose, plastic melted.. not a very good job.. Beside those issues the “repairman” sprayed the board with “Flux SK10”.. why ?! The whole board is sticky.. The keyboard fpc top cap even […]
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.