Search found 171 matches

by HigashiJun
Fri Mar 05, 2021 1:05 pm
Forum: Technical questions
Topic: Atmos and Cumana Reborn - No go...
Replies: 11
Views: 1177

Re: Atmos and Cumana Reborn - No go...

I was just wondering if the VIA is not the culprit: the ATMOS works but when something is connected to the printer port, then and only then an issue arises. That makes absolutely no sense to me, unless (as you say) you have a somewhat faulty VIA chip, but I suck at hardware, so... I will be sure wh...
by HigashiJun
Fri Mar 05, 2021 3:27 am
Forum: Technical questions
Topic: Atmos and Cumana Reborn - No go...
Replies: 11
Views: 1177

Re: Atmos and Cumana Reborn - No go...

xahmol wrote:
Thu Mar 04, 2021 6:49 pm
HigashiJun wrote:
Thu Mar 04, 2021 1:04 am
As you may know, Piotr is famous for not answering.
I actually have different experience, but agree that differs from time to time.

Yes, I heard that some persons manage somehow to get an answer from Piotr.
by HigashiJun
Thu Mar 04, 2021 1:04 am
Forum: Technical questions
Topic: Atmos and Cumana Reborn - No go...
Replies: 11
Views: 1177

Re: Atmos and Cumana Reborn - No go...

As you may know, Piotr is famous for not answering. I had an issue with my Cumana Reborn before and with another stuff for my Amstrad CPC and I never had any answer from him. He makes good stuff but he should improve his after-service... In my case, I just have one Cumana Reborn working flawlessly w...
by HigashiJun
Wed Mar 03, 2021 1:06 pm
Forum: Technical questions
Topic: Atmos and Cumana Reborn - No go...
Replies: 11
Views: 1177

Re: Atmos and Cumana Reborn - No go...

Thank you for this interesting feedback.

Sorry, but I was no clear in my topic: it is the Cumana Reborn. :oops:

Mea Culpa.

So different brands of CPUs and VIAs are not the source of this problem...

I will have to investigate more when time permits.
by HigashiJun
Wed Mar 03, 2021 3:11 am
Forum: Technical questions
Topic: Atmos and Cumana Reborn - No go...
Replies: 11
Views: 1177

Re: Atmos and Cumana Reborn - No go...

kenneth wrote:
Wed Mar 03, 2021 1:28 am
Maybe there is an Uvprom chip inside instead a genuine Rom memory.
No, there is a genuine ROM.

(But I will replace it later with a Basic 1.22 EPROM as on my other ATMOS, using the Cumana compatible Hitachi HN4827128G).
by HigashiJun
Wed Mar 03, 2021 1:06 am
Forum: Technical questions
Topic: Atmos and Cumana Reborn - No go...
Replies: 11
Views: 1177

Atmos and Cumana Reborn - No go...

Last month, I got another Atmos and this one was working fine from the beginning, so I had nothing to repair. :D There is just an issue with the Cumana: when the Cumana is attached, everything starts to boot when powered-on but the Atmos just freezes, no matter how many times I try. Even a reset of ...
by HigashiJun
Sun Feb 07, 2021 3:32 am
Forum: Hardware hacks and extensions
Topic: TSN 1-2450A instead of LM7905
Replies: 27
Views: 6207

Re: TSN 1-2450A instead of LM7905

Is that the proper part: https://no.rs-online.com/web/p/switching-regulators/7880604 They only seem to have the model without the bent legs on this norwegian shop, would that work on the Oric, or would that be too tall and definitely require the one on the right on https://www.tracopower.com/int/mo...
by HigashiJun
Sat Feb 06, 2021 10:46 am
Forum: Hardware hacks and extensions
Topic: Oric V23 Modem
Replies: 56
Views: 5689

Re: Oric V23 Modem

:D
by HigashiJun
Sun Jan 17, 2021 1:21 pm
Forum: Technical questions
Topic: Oric on VGA monitors
Replies: 21
Views: 9274

Re: Oric on VGA monitors

My monitor is a NEC Multisync LCD 1990FXp. NEC Multisync LCD 1990FXp - Manual HERE on page 16: nec-1990FXp.png Sorry for the bad news but this monitor is NOT 15 kHz compatible :(. Do not worry, it is 15 kHz compatible... I know the manual does not mention it (like all other MultiSync monitors), but...
by HigashiJun
Sun Jan 17, 2021 11:07 am
Forum: Hardware hacks and extensions
Topic: IJK Joystick Adaptor
Replies: 2
Views: 641

Re: IJK Joystick Adaptor

Nice case !
by HigashiJun
Sun Jan 17, 2021 6:50 am
Forum: Technical questions
Topic: Oric on VGA monitors
Replies: 21
Views: 9274

Re: Oric on VGA monitors

Finally had some time to quickly check the Sync Striker with my other retro computers. And the result is: nothing on the screen. :( I saw a guy on the net using the device without any upscaler, so it should be not needed if the monitor supports 15 kHz: https://www.youtube.com/watch?v=O8jB8rAsz_8 And...
by HigashiJun
Sun Jan 17, 2021 4:20 am
Forum: Technical questions
Topic: Oric on VGA monitors
Replies: 21
Views: 9274

Re: Oric on VGA monitors

@HigashiJun, @Symoon : What models are your 15 kHz compatible VGA monitors? Oric outputs the CSYNC signal as negative pulses - are the Sync Striker output HSYNC/VSYNC compatible with the monitor requirements? Else thanks to this thread, I recall that I should have some old VGA monitors buried somew...
by HigashiJun
Fri Jan 15, 2021 2:22 pm
Forum: Technical questions
Topic: Oric on VGA monitors
Replies: 21
Views: 9274

Re: Oric on VGA monitors

Ok, so I have received the Sync Striker today and it does not seem to work with the Oric. When powered by an Oric SCART, the led on the Sync Striker does not light and there is of course nothing on the VGA monitor screen. :( When powered by an external 5V PSU, the LED does light but there is still n...
by HigashiJun
Sat Dec 26, 2020 3:53 am
Forum: Technical questions
Topic: Oric on VGA monitors
Replies: 21
Views: 9274

Re: Oric on VGA monitors

Just hope to receive it soon, as shipments take ages with all this COVID-19 fuss...

There are some related videos on Youtube just to have an idea what this little piece of hardware is capable of.