Search found 10 matches

by flaviosr
Fri Aug 31, 2018 10:38 pm
Forum: Hardware
Topic: Have I killed my ZX Spectrum?
Replies: 7
Views: 1047

Re: Have I killed my ZX Spectrum?

The Spectrum is alive and kicking! I changed all 4116 putting them on sockets. I also found that TR4 was dead. And a new membrane also helped. Thank you to all for the help. https://s8.postimg.cc/h88vjd0wx/PIC_20180831_160744.jpg https://s8.postimg.cc/57nfi93oh/PIC_20180831_160810.jpg https://s8.pos...
by flaviosr
Mon Aug 20, 2018 6:32 pm
Forum: Hardware
Topic: Spectrum 48k Image quality.
Replies: 7
Views: 979

Re: Spectrum 48k Image quality.

by flaviosr
Sun Aug 19, 2018 7:45 pm
Forum: Hardware
Topic: Tapuino for Sinclair computers.
Replies: 1
Views: 343

Tapuino for Sinclair computers.

Dear All, I have searched over the internet but iI haven't found anything... 😱 Does exist for Sinclair machines a tape emulator like the Tapuino for Commodore ones? I know I could transform program files in WAV format but: * I have tried with my mobile phone, a Sony Xperia XZ1, but my machines found...
by flaviosr
Sun Aug 19, 2018 7:37 pm
Forum: Hardware
Topic: Spectrum 48k Image quality.
Replies: 7
Views: 979

Re: Spectrum 48k Image quality.

I have discovered today the AV MOD!
It seems a good solution. Some feedback?
by flaviosr
Tue Aug 14, 2018 11:24 am
Forum: Hardware
Topic: Have I killed my ZX Spectrum?
Replies: 7
Views: 1047

Re: Have I killed my ZX Spectrum?

Later this afternoon (now a bit of relax after lunch and drinking a coffee...) I am going to make the voltages checks... I am also waiting from Amazon two new low bookcases for my laboratory so I will be heavily busy today. Anyway I looked over internet about my issue and I have read that 4116 chips...
by flaviosr
Sun Aug 12, 2018 5:56 pm
Forum: Hardware
Topic: Have I killed my ZX Spectrum?
Replies: 7
Views: 1047

Have I killed my ZX Spectrum?

Ok, do not insult me!!! I have already done the job by myself (many times)... The story... 0. today I tested the new (old) ZX printer and... and I made the big big big mess... :( 1. first of all I connected the printer to the Spectrum... turned on! :( from now on I am going to hate USB... 2. I notic...
by flaviosr
Sun Aug 12, 2018 12:37 pm
Forum: Hardware
Topic: Spectrum 48k Image quality.
Replies: 7
Views: 979

Re: Spectrum 48k Image quality.

Okay, so before talking about problems with the ZX Spectrum, it's worth pointing out that with a RF (UHF) or composite video signal, the monochrome picture (containing no colour information, as produced by ZX80, ZX81 etc.) will always be sharper and clearer compared to a colour video signal. This i...
by flaviosr
Sun Aug 12, 2018 8:59 am
Forum: Hardware
Topic: PSU Voltages.
Replies: 3
Views: 372

Re: PSU Voltages.

1024MAK wrote:
Sat Aug 11, 2018 4:31 pm
See also this thread...

Mark
It's mine! :lol:
I registered in ZX81, Spectrum and QL forums! One for each. I notice now that the ZX81 and Spectrum are... very equal! :D
And thank you for your answer for the video quality! :D I am looking now for your suggestions...
by flaviosr
Sat Aug 11, 2018 12:07 pm
Forum: Hardware
Topic: Spectrum 48k Image quality.
Replies: 7
Views: 979

Spectrum 48k Image quality.

Dear All, still working on my Sinclair collection I was testing all cassettes to see which are good and which not. Image quality is not so good (ghosting, pixels not so clear) using my "old" LG CRT but I though the issue is with TV. Then I switched to my ZX81 and... MIRACLE!!! Better than on a LCD v...
by flaviosr
Fri Aug 10, 2018 7:31 pm
Forum: Hardware
Topic: PSU Voltages.
Replies: 3
Views: 372

PSU Voltages.

Dear All, I am putting order in my small Sinclair Collection (1 × ZX80 in kit, 1 × ZX81, 2 × Spectrum, 1 × QL), testing everything. I was using one of two Spectrum when it simply turned off... I was a bit scared when I decided to measure the voltage from the PSU and it was 0.9V...I breathed a sigh o...