black screen, or is full of pixels

[Diakon]

Hi!
At me is the Commodore 64C. It worked normally. But recently, at food inclusion, either the black screen, or pixels ( http://clip2net.com/s/398TCPp ).
I sorted it. I checked the voltmeter chips. On all there is a voltage ( http://clip2net.com/s/398Vmyt ). But, when I checked tension on the MOS8701 chip, the screen flickered (even at the black screen) http://clip2net.com/s/398VggS . Prompt in what there can be a problem at my C64.
Forgive, for bad English

[MarcWalters]

Search Ray Carlsen's pages for diagnosis tips.

Here is one of his pages:
http://personalpages.tds.net/~rcarlsen/ ... 4blank.txt

[yaztromo]

Looks like a C64C board:

http://personalpages.tds.net/~rcarlsen/ ... 4cdiag.txt