Search found 10 matches

by jejump
Mon Sep 23, 2019 11:45 am
Forum: Hardware
Topic: How can I convert PAL to NTSC on the MZ-700?
Replies: 8
Views: 543

Re: How can I convert PAL to NTSC on the MZ-700?

Well in that case, to change the clock speed to support NTSC, sounds like I'd be shaving off ~3.6Mhz of CPU processing speed too, right? I suspect that snipping JP1 informs the timers (including video output timer) how to behave so that games play at the right speed, audio is generated at the right ...
by jejump
Mon Sep 23, 2019 2:11 am
Forum: Hardware
Topic: How can I convert PAL to NTSC on the MZ-700?
Replies: 8
Views: 543

Re: How can I convert PAL to NTSC on the MZ-700?

Thanks for all the info. I'm going to give the converter from Amazon a go just because it seems easiest and solder the clipped jumper back together. Maybe I'll be satisfied with that. If not, I'll try to change the clock as you've described. Is this the main processor's clock too, or just something ...
by jejump
Sat Sep 21, 2019 3:44 pm
Forum: Hardware
Topic: How can I convert PAL to NTSC on the MZ-700?
Replies: 8
Views: 543

Re: How can I convert PAL to NTSC on the MZ-700?

I'm also looking at this:

https://www.amazon.com/CIMPLE-CO-Conver ... 384&sr=8-5

For the money, maybe it'll do the job just fine. Hopefully, without much signal loss.
by jejump
Sat Sep 21, 2019 3:21 pm
Forum: Hardware
Topic: How can I convert PAL to NTSC on the MZ-700?
Replies: 8
Views: 543

How can I convert PAL to NTSC on the MZ-700?

Hi guys, I am working on the MZ-700 again that I got from eBay a few months ago. I recently discovered that the video output signal is PAL and the Commodore 1702 monitor I am working with is NTSC. I hope to convert the MZ-700 to be NTSC. There is a jumper that someone on a C64 Commodore forum pointe...
by jejump
Tue Jun 25, 2019 1:41 pm
Forum: Hardware
Topic: RGB output
Replies: 1
Views: 373

Re: RGB output

Here's a useful link for you:

https://www.sharpmz.no/articles/the-mz- ... onnectors/

The RGB DIN connector is about halfway down the page.

John
by jejump
Tue Jun 11, 2019 10:42 am
Forum: Hardware
Topic: Expansion Bus Connector for MZ-700
Replies: 7
Views: 875

Re: Expansion Bus Connector for MZ-700

Pacman, Thanks for sharing your link. I think (and hope) your connector is the same connector for all intents and purposes, aside from the fact that the one I found has right angle pins. The 'B' dimension for both connectors has almost negligible difference. If that connector has previously worked f...
by jejump
Tue Jun 11, 2019 2:30 am
Forum: Hardware
Topic: Expansion Bus Connector for MZ-700
Replies: 7
Views: 875

Re: Expansion Bus Connector for MZ-700

Thanks for looking into that for me, hlide. These connectors are cheap enough, I think I'll go ahead and purchase a couple. If it's wrong, it's not going to drain my bank account to try.

Thanks again!
John
by jejump
Thu Jun 06, 2019 6:52 pm
Forum: Hardware
Topic: Expansion Bus Connector for MZ-700
Replies: 7
Views: 875

Re: Expansion Bus Connector for MZ-700

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by jejump
Thu Jun 06, 2019 6:36 pm
Forum: Hardware
Topic: Expansion Bus Connector for MZ-700
Replies: 7
Views: 875

Re: Expansion Bus Connector for MZ-700

I've attached a couple of images. This is the connector I BELIEVE should work. If anyone can confirm dimension 'B' in photo 1 for the 50 contact version of this connector, that would probably be enough for me to place an order for a couple of these. Should be just over 6.5 CM if I've found the right...
by jejump
Wed Jun 05, 2019 10:59 am
Forum: Hardware
Topic: Expansion Bus Connector for MZ-700
Replies: 7
Views: 875

Expansion Bus Connector for MZ-700

Hello All, I just bought a MZ-700 from an eBay seller. It was advertised as not working but I feel I have a pretty good chance of repairing whatever is wrong. Description reads like classic power supply failure. I hope to build and connect some custom external hardware for this machine. I have found...