Search found 25 matches

by schombi
02 Mar 2014 04:58
Forum: GENERAL DISCUSSIONS
Topic: Website Search Engines
Replies: 11
Views: 14548

Re: Website Search Engines

I think that´s very useful. I tried a few searches and it came back with the right results. Thanks a lot!

Maybe the search button should be visible on the left hand side of each page?
by schombi
18 Feb 2014 21:09
Forum: HARDWARE
Topic: Embarrassing newbie questions
Replies: 32
Views: 42257

Re: Embarrassing newbie questions

Yes, bolt and nut have been removed. All that moves is the plastic back panel, until it stops at the heat sink. The board itself seems to be cemented in - does not move a bit.
by schombi
17 Feb 2014 20:57
Forum: HARDWARE
Topic: Embarrassing newbie questions
Replies: 32
Views: 42257

Re: Embarrassing newbie questions

I removed the memory board, but still did not manage to remove the main board. :( The memory board hardly moved in its slots, but the main board simply does not move a nm! I double-checked the plastic backplate again and found that it cannot be pushed to either side, since the metal heat exchanger o...
by schombi
14 Feb 2014 20:37
Forum: HARDWARE
Topic: Embarrassing newbie questions
Replies: 32
Views: 42257

Re: Embarrassing newbie questions

It´s getting embarrassing again. How the hell does the board get removed? I took off the keyboard, the video board and the screw on the back, but both the main board and the memory board do not move a mm! I also cannot remove the rear plastic bar (on the connectors). This one moves a bit to the left...
by schombi
14 Feb 2014 09:35
Forum: HARDWARE
Topic: Embarrassing newbie questions
Replies: 32
Views: 42257

Re: Embarrassing newbie questions

Thanks for the suggestions. Unfortunately I don´t have access to a scope and my HP DVM is way too old and slow.

I think I should try the regulator replacement; just about to order the parts. I´ll report back if there´s any improvement.
by schombi
13 Feb 2014 16:05
Forum: OFF TOPIC
Topic: What other retro machines do you have?
Replies: 26
Views: 26329

Re: What other retro machines do you have?

Beside from a few specials like the Orics, a Didaktik etc., it´s mainly Spectrums, a few QLs and three Sam Coupes.
The whole lot can be seen on --> http://schombi.de/my-retro-collection.html

@thewiz: Spectrum looking for a good home? Drop me a message.
by schombi
13 Feb 2014 15:55
Forum: HARDWARE
Topic: Embarrassing newbie questions
Replies: 32
Views: 42257

Re: Embarrassing newbie questions

The service manual also mentions that some video signal problems could be caused by a faulty 7805/7812.

Replacements should be UA7805/UA7812. These are hard to get, so I wonder if the standard 7805 used in the Spectrum would also work? For the 7812, would ST L7812CV 12V/1.5A work?
by schombi
10 Feb 2014 15:09
Forum: MEMU
Topic: Feature request "GUI for Windows"
Replies: 21
Views: 29909

Re: Feature request "GUI for Windows"

I had a quick look at the launcher on the week-end. Looks good to me. Thanks for the work, Bill!
by schombi
09 Feb 2014 18:47
Forum: HARDWARE
Topic: Embarrassing newbie questions
Replies: 32
Views: 42257

Re: Embarrassing newbie questions

You guys were right! It was F1 (along with "o"), that was stuck. After using some IPA and "hammering" each key, I managed to boot up the MTX and get all keys working. That´s good progress! :) I did not dare swapping the video boards, but I removed the one from this unit, had a cl...
by schombi
07 Feb 2014 10:51
Forum: HARDWARE
Topic: Embarrassing newbie questions
Replies: 32
Views: 42257

Re: Embarrassing newbie questions

Finally I was able to carry out some more troubleshooting. First of all I re-checked all connections and re-seated all socketed chips. I also tightened up the connection to the monitor output. Looks like Bill B was right. There is something weird going on with the keyboard. With the keyboard removed...