Search found 3 matches

by cerror
Sun Dec 18, 2016 4:22 pm
Forum: Hardware
Topic: zx spectrum 128K +2 (grey, issue 1) rgb problem
Replies: 6
Views: 8007

Re: zx spectrum 128K +2 (grey, issue 1) rgb problem

A multimeter that can't measure low voltages? Is it a clamp meter? Only every multimeter that I have used can measure low voltage DC. Mark I have a pretty crap one (velleman DVM831) and I can't get it to work the way I want it. Apparently it's not suitable for low-voltage distribution boards it say...
by cerror
Sun Dec 18, 2016 4:19 pm
Forum: Hardware
Topic: zx spectrum 128K +2 (grey, issue 1) rgb problem
Replies: 6
Views: 8007

Re: zx spectrum 128K +2 (grey, issue 1) rgb problem

Thank you!
I've ordered the same transistors via a local electronics shop, since shipping from the UK will take a while.
Will try it out, and I see that TR 8 has a little bit of it off. So big chance that is the problem.
by cerror
Sun Dec 18, 2016 10:54 am
Forum: Hardware
Topic: zx spectrum 128K +2 (grey, issue 1) rgb problem
Replies: 6
Views: 8007

zx spectrum 128K +2 (grey, issue 1) rgb problem

Hello everybody! I have a problem with my Spectrum 128K +2 ( grey, issue 1, board Z70700 (3886) ). I get a greatly distorted image with RF, RGB->scart and a black screen with a RGB->composit cable (coolnovelties.co.uk 128+2 grey model cables). I recorded the image of the screen via the RGB->scart to...