Search found 1118 matches

by Dave
06 Aug 2015 14:50
Forum: HARDWARE
Topic: Replacing a 4116 VRAM with a more reliable 4164 - Courtesy o
Replies: 8
Views: 15003

Re: Replacing a 4116 VRAM with a more reliable 4164 - Courte

If there is any demand (i.e., for more than 1), I would do this regards Dave p.s., I had thought about doing this previously, the thing that put me off was the fact that the user would have to remove the existing VRAMs. That is maybe not so much of a problem if the machine has a VRAM fault and is br...
by Dave
06 Aug 2015 14:11
Forum: HARDWARE
Topic: Screw at MTX case bottom
Replies: 5
Views: 6679

Re: Screw at MTX case bottom

Hi, yes, that's the photo. Just to be clear, the screw that you are talking about should "appear" through the hole in the 7805 regulator, it is not fitted in the photo, but this is the best photo that I have of the regulators and heat sink. They are usually obscured by C56. No, it isn't no...
by Dave
06 Aug 2015 13:41
Forum: HARDWARE
Topic: Screw at MTX case bottom
Replies: 5
Views: 6679

Re: Screw at MTX case bottom

Look on the page ..... http://www.primrosebank.net/computers/mtx/mtxphoto.htm Just below the video board photos, the bolt goes through the base and is fixed with a nut job n the heat sink tab. I'd need to check the size, but it's probably a small BA sized bolt. I'll try and get measurements later Re...
by Dave
28 Jul 2015 14:59
Forum: INTRODUCE YOURSELF
Topic: Please Introduce yourself...
Replies: 31
Views: 44149

Re: Please Introduce yourself...

Hi Wayne, Welcome! As you have found, loading software from tape can be a frustrating experience. [Caution : shameless advertising to follow ] :-) You may be interested in MAGROM http://www.primrosebank.net/computers/mtx/projects/magrom/magrom.htm It is a convenient way to play 38 games from ROM wit...
by Dave
21 Jul 2015 23:50
Forum: HARDWARE
Topic: Another 4000-06 board
Replies: 15
Views: 16724

Re: Another 4000-06 board

Hi Claus,

I agree with David, it's likely a VRAM fault, see this page too :-

http://www.primrosebank.net/computers/m ... _fault.htm

I never did figure out how the VRAM could affect the data bus, but it can as my webpage describes

regards
Dave
by Dave
17 Jul 2015 20:43
Forum: HARDWARE
Topic: Building a replacement MTX PSU
Replies: 166
Views: 204592

Re: Building a replacement MTX PSU

Hi David, just a graphics editor - PAINT.NET, it's free. http://www.getpaint.net/download.html It can create most graphics formats (.png, .jpg., .gif, etc.) I am sure there are specific label creation programs around, but this does the job and can create output that could be used by any of the cheap...
by Dave
17 Jul 2015 20:22
Forum: HARDWARE
Topic: Building a replacement MTX PSU
Replies: 166
Views: 204592

Re: Building a replacement MTX PSU

Hi David,

sorry! - I knew that :oops: - spelling corrected.

Fuse note added

A couple of mods to the label
Mark - can you confirm/correct the specs please?

regards
Dave
by Dave
16 Jul 2015 18:14
Forum: HARDWARE
Topic: Building a replacement MTX PSU
Replies: 166
Views: 204592

Re: Building a replacement MTX PSU

Thanks Mark,

Web page is here http://www.primrosebank.net/computers/m ... psu_mk.htm

Not completed yet, basically just a group of photos, but you'll get the idea . . . . .

Regards
Dave
by Dave
16 Jul 2015 06:29
Forum: HARDWARE
Topic: Building a replacement MTX PSU
Replies: 166
Views: 204592

Re: Building a replacement MTX PSU

But still with time to play :-)