Re: Blurry picture

From: Gerrit Heitsch <>
Date: Sat, 12 Nov 2011 21:58:18 +0100
Message-ID: <>
On 11/12/2011 09:22 PM, Michał Pleban wrote:
> Hello!
> Thank you all for your suggestions. Here's what I found:
> * Yes, there is 12V on the 13th pin.


> * I am actually using the composite signal and feeding it into TV. But
> your mention about LCD monitors made me wonder if simply the LCD TV is
> not well fit for this connection. I will try with plasma tomorrow.

This could be the problem... At first I used a TFT with S-Video and 
composite inputs, but the image was rather bad. On a different TFT the 
image was much better, so this can be a factor.

If you want to be on the safe side, find an old Commodore 1084 monitor. 
Fix the solder joints at the flyback transformer (known problem) and 
enjoy. The 1084 accepts RGB (analog and TTL), S-Video and Composite.

> * The VIC indeed gets very hot in short time. I will work on a heatsink.

There are heatsinks made for DIP-ICs. I usually use a drop of heatsink 
compound in the middle and then fix it in place with a drop of normal 
glue on each side (not between heatsink and chip!). This way it can be 
removed again.

> * I will get another VIC-II from another source and try.

See if you can get a 6569R5, last revision before they went to the 
HMOS-II versions.

> I tried today, and I noticed that the picture is wavy only on the first
> minute or so when the computer is powered up. After that it stabilizes,
> it is just blurry. I don't know if it means anything.

Could be something with the power supply.


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Received on 2011-11-12 21:00:35

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