View Full Version : Got a sick 128

November 14th, 2008, 09:56 PM
Just got three 128's and one has a video problem. There's a ghost image on the screen, kind of black on black, where you can see the ghost of the ready prompt and memory count. Happens on both the video port and the RF port. Powr supply is good, the other two units work fine (so far as video is concerned).

It's a bit late and I have an 8am class, so I'm not tearing it open tonight to look.

Another on has a sticking spacebar, and most likely a beefier spring will fix it. I'm keeping my eyes open for that.

I'm googling.


November 15th, 2008, 12:03 AM
Bad video chip... clock freq is off... bad component between the video chip and the composite out... (which the RF mod should tap off of too)


November 15th, 2008, 08:07 AM
I'll start with the chip, since both outputs have the black screen (RF and DIN).