Skip to main content
Home Forums 68kMLA Color Classic picture distorted — #1
Post #1 by mrpippy
Source Forum68kMLA
CategoryTroubleshooting
Post DateWed, 17 Jun 2015 - 08:35
Original URLhttps://68kmla.org/bb/threads/color-classic-picture-distorted.2149/
Post
I picked up a Color Classic off eBay last week, had to bypass a via and now it boots! The picture doesn't look very good though, just isn't that sharp and there's some serious pincushion distortion:

IMG_3140.JPG

As usual that picture looks worse than real life (that line across the middle and the rainbow effects are just from the camera) but the distortion is accurate.

I haven't done any recapping yet (on logic board or analog board), obviously there was some leakage on the logic board but not too bad.

I haven't pulled the analog board out yet, but from the top I don't see any capacitors that have leaked or are bulging.

I assume the bad picture is caused by bad analog board caps, are there any I should try replacing first? CF8 next to the Zeners is a common one I guess

Also is there any list online of the analog board caps, including the diameter/length? 

mp.ls