Search found 13 matches

by CsabaiGD
Tue Aug 31, 2021 11:07 am
Forum: Hardware
Topic: Spectrum error
Replies: 20
Views: 7514

Re: Spectrum error

Thanks for your answer!

The wires are both on H position. But I noticed there is a missing component on the R57. It is normal, or that can cause this error? :shock: I show you pictures.
by CsabaiGD
Mon Aug 30, 2021 10:34 pm
Forum: Hardware
Topic: Spectrum error
Replies: 20
Views: 7514

Re: Spectrum error

Thanks for your anwser! "You say that the ROM is in a socket. Is the Z80A in a socket?" No, that's not. Only the ULA and the ROM is in socket. "Have you done a visual inspection of the tracks, pads etc on both the underside and the top side of the board looking for any damage or causes of short circ...
by CsabaiGD
Mon Aug 30, 2021 11:35 am
Forum: Hardware
Topic: Spectrum error
Replies: 20
Views: 7514

Spectrum error

Hello Everyone! I need help to repair my ZX Spectrum 48k Issue 2. I Think 2 years earlier accidentally i supplied 9v center positive to the computer but the psu was only connected about 2 seconds long. Yesterday, I bought a 9v Center negative supply and I Connected it to the computer. It won't displ...