Search found 681 matches
- Sun Jun 05, 2022 4:20 pm
- Forum: Hardware
- Topic: Help: Sharp MZ 700 short fuse with video connection
- Replies: 13
- Views: 5544
Re: Help: Sharp MZ 700 short fuse with video connection
https://www.sharpmz.no/articles/the-mz-series/mz-700/mz-700-connecting-a-monitor-or-a-tv-to-the-mz-700/ It seems you plug the right connector so far. I guess your cinch cable it is an RCA cable (yellow one, I already used them to connect a TV). If you have an oscilloscope, you should probably check ...
- Sun Jun 05, 2022 2:16 pm
- Forum: Hardware
- Topic: Help: Sharp MZ 700 short fuse with video connection
- Replies: 13
- Views: 5544
Re: Help: Sharp MZ 700 short fuse with video connection
Did you invert the connection? I mean connector A was on MZ-700, B on screen. What would happen if B on MZ-700, A on screen? I'm not asking to do so but if you happened to check that also. As a matter, for some reason, using that cable provokes a surge. Did you check the voltage of you cinch cable? ...
- Sun Jun 05, 2022 1:36 pm
- Forum: Hardware
- Topic: Help: Sharp MZ 700 short fuse with video connection
- Replies: 13
- Views: 5544
Re: Help: Sharp MZ 700 short fuse with video connection
Which country? 110V? 220V? Western or Japanese MZ-700? And so on. First, does it happen only when connected to a screen? Does it run without cinch cable? Does it run with cinch cable connected? Because you may have a short-circuit when connecting a cinch cable to MZ-700. Please open the case of MZ-7...
- Wed Jun 01, 2022 11:37 pm
- Forum: Hardware
- Topic: MZ80B - BootRom Disc
- Replies: 12
- Views: 7637
Re: MZ80B - BootRom Disc
This is a GAL, not a CPLD.
- Mon May 30, 2022 8:09 pm
- Forum: Hardware
- Topic: MZ-80a US Power Supply
- Replies: 4
- Views: 2551
Re: MZ-80a US Power Supply
Better, one being able to accept 100-240V to deliver 5V/4A
This one is around 5A:
https://asset.conrad.com/media10/add/16 ... -5-vdc.pdf
This one is around 5A:
https://asset.conrad.com/media10/add/16 ... -5-vdc.pdf
- Wed May 18, 2022 12:55 pm
- Forum: Hardware
- Topic: Are there factory bodges on MZ-80K PCB?
- Replies: 7
- Views: 3402
Re: Are there factory bodges on MZ-80K PCB?
My assumption is the clock of LS165 was modified to output at 40 or 80 columns so there was probably a more complex circuit due to addition of VRAM from 1KB to 2KB. I don't know the mod though.
- Wed May 18, 2022 11:42 am
- Forum: Hardware
- Topic: Are there factory bodges on MZ-80K PCB?
- Replies: 7
- Views: 3402
Re: Are there factory bodges on MZ-80K PCB?
Ah yes, you probably had a 40/80 column switcher so the clock circuit should have been modified as well.
- Wed May 18, 2022 11:35 am
- Forum: Hardware
- Topic: Are there factory bodges on MZ-80K PCB?
- Replies: 7
- Views: 3402
Re: Are there factory bodges on MZ-80K PCB?
Another set of schematics here at the end of the page: http://www43.tok2.com/home/cmpslv/Mz80k/EnrMzk.htm
- Wed May 18, 2022 11:11 am
- Forum: Hardware
- Topic: Are there factory bodges on MZ-80K PCB?
- Replies: 7
- Views: 3402
Re: Are there factory bodges on MZ-80K PCB?
Try to see if the mod is that one: https://www.sharpmz.no/articles/the-mz- ... m-support/
I believe there are several methods though.
I believe there are several methods though.
- Wed May 18, 2022 11:08 am
- Forum: Hardware
- Topic: Are there factory bodges on MZ-80K PCB?
- Replies: 7
- Views: 3402
Re: Are there factory bodges on MZ-80K PCB?
That model were heavily modded and had a 4MHz turbo clock which means several cuts on te motherboard to make it happen. Just removing such addition won't restore the original clock circuit.