Commodore 1701 Monitor shrunk picture

[SiriusHardware]

I would at the very least resolder all the legs of X401, X402 - thermal expansion / contraction, or physical vibration, over the years, may have caused one or more invisible cracks in the solder around the transistor pins.

[Terry_VK5TM]

Agreed with Sirius, the fact that moving the leg of the transistor almost fully corrected the problem points to dry/cracked joints around those transistors.

[pudwink]

Hi
Yes I have had a look and there was a crack in the solder I have reflowed both transistors.
I have tried it with the C64 I got with it but still not filling the screen any ideas what to try now.

[SiriusHardware]

May just need the vertical height adjustment adjusted now - when it originally broke down, probably all sorts of things got twiddled initially to try to make it work.

[pudwink]

Hi all.

Had the back off and twiddled the adjustment and it's perfect I just would like to thank everyone who has helped me to get this working and will no doubt be posting again on here soon as I still have some other vintage computer stuff to get going.

Many, many thanks

[SiriusHardware]

Well done getting it going, it sometimes takes a while but I admire the fact that you never seem to give up, you always keep going and get there in the end.