Amiga 1200 Rev 1D1 Noise on video signal (LM385)
I've seen some 1200 Rev. 1D.1 boards missing the D215 (LM385), this will result in a higher voltage on the DAC VREF signal (U30) and noise will shown when…
Amiga CD32 Laser calibration & replace laser pickup procedure
WARNING! Before you start: I AM NOT RESPONSIBLE FOR ANY DAMAGE TO YOUR Amiga CD32 OR EYES! DON'T LOOK INTO THE LASER (BEAM)!! AVOID DIRECT EYE EXPOSURE!! ALWAYS COVER THE…
Working Amiga 4000 motherboard freeze then green screen after few minutes
@tbtorro Amiga 4000 motherboard works from cold boot, then freezes after few minutes and shows green screen after reset. Cold boot (after about 5 minutes) would restore the board, then…
Amiga 1200 video DAC information
Some information about the video DACs If the Amiga rev 1 board uses ( or will be ): ADV101 D215, C215, R215 must be placed on the board.…
Amiga – What are those board jump wires ?
Amiga 1200 CCK clock signal - Alice to Budgie The technical reason is that the CCK clock signal coming out of Alice is not clean enough to drive the input…