Search found 7 matches

by folkoh
Wed Jul 19, 2023 2:06 pm
Forum: Hardware
Topic: Help: Sharp MZ 700 short fuse with video connection
Replies: 13
Views: 5571

Re: Help: Sharp MZ 700 short fuse with video connection

Hello,

as said last year, I have stopped on that project. Now I am offering the MZ-731 on ebay. If someone is interested, here is the auction starting at whopping 1€ price tag... may someone with more time and experience give it a new life.

https://www.ebay.de/itm/155673629144

Cheers,

Folko
by folkoh
Tue Jul 05, 2022 10:20 am
Forum: Hardware
Topic: Help: Sharp MZ 700 short fuse with video connection
Replies: 13
Views: 5571

Re: Help: Sharp MZ 700 short fuse with video connection

Hello, first sorry for the silence, life happened. Today I had a look with my cheapo oscilloscope not being an expert this is what I got: In B/W mode: MZ700_bw.JPEG In colour mode: MZ700_col_low.JPEG MZ700_col_hi.JPEG With my little expertise I'd say it doesn't look to dramatic, so I gave it another...
by folkoh
Mon Jun 06, 2022 3:37 pm
Forum: Hardware
Topic: Help: Sharp MZ 700 short fuse with video connection
Replies: 13
Views: 5571

Re: Help: Sharp MZ 700 short fuse with video connection

Ok thx, yes I believe the RF box is the suspect. I am going into check mode with oscilloscope next.
by folkoh
Mon Jun 06, 2022 1:05 pm
Forum: Hardware
Topic: Help: Sharp MZ 700 short fuse with video connection
Replies: 13
Views: 5571

Re: Help: Sharp MZ 700 short fuse with video connection

Well, more thanks. While the SCART connection is interesting in general, I first need to find out why I get the short circuit. I will check with an oscilloscope but I will need some time as I am not very familiar with it, rarely ever used it. Hope this will bring some insight on what is coming out o...
by folkoh
Sun Jun 05, 2022 3:17 pm
Forum: Hardware
Topic: Help: Sharp MZ 700 short fuse with video connection
Replies: 13
Views: 5571

Re: Help: Sharp MZ 700 short fuse with video connection

How can I invert? It is only one cinch cable(connector). And it works 100% fine on other 8-bits. I checked that it doesn't change polarity within this single connection as well. I connect it here: DUNT-1151ACZZ_3.jpeg Here is the RF/video unit, case opened. I can see some hear has occurred around so...
by folkoh
Sun Jun 05, 2022 1:51 pm
Forum: Hardware
Topic: Help: Sharp MZ 700 short fuse with video connection
Replies: 13
Views: 5571

Re: Help: Sharp MZ 700 short fuse with video connection

Hello thanks for your reply. Some answers: - 220V - Western MZ 700 (731) - As described it runs w/o cinch cable - as long as not connected to a monitor it runs with the cinch cable plugged in Hmm, I do not understand your statementthat I may have a short-circuit when connecting a cinch to the MZ700....
by folkoh
Sun Jun 05, 2022 10:33 am
Forum: Hardware
Topic: Help: Sharp MZ 700 short fuse with video connection
Replies: 13
Views: 5571

Help: Sharp MZ 700 short fuse with video connection

Hello, I am new to the SHARP community. I have quite a collection of 8-bit computers running. I normally have no big issue repairing them, but now I've encountered an issue I am not sure how to deal with. If anyone can contribute to help me narrowing down the issue I 'd be very grateful. The story s...