Search found 93 matches
- 08 Jul 2015 22:31
- Forum: HARDWARE
- Topic: Building a replacement MTX PSU
- Replies: 166
- Views: 202129
Re: Building a replacement MTX PSU
Hi back Dave! Yes, the P-touch label doesn't quite have the finishing touch as a MTX logo or red stripe. Any ideas on how I could remedy this? A custom printed label? Try eBay, just had a quick look, you could get something printed, but it wouldn't be economic for a single one. If others plan to bu...
- 08 Jul 2015 17:08
- Forum: HARDWARE
- Topic: Building a replacement MTX PSU
- Replies: 166
- Views: 202129
Re: Building a replacement MTX PSU
Hi back Dave! Here are some more exterior shots. I've added a set of vinyl feet, or bumpers as it was wobbling a bit due to the countersunk screws protruding. It looks better I think as well. http://kimberlinwyer.com/images/IMG_1682.JPG http://kimberlinwyer.com/images/IMG_1683.JPG http://kimberlinwy...
- 06 Jul 2015 21:09
- Forum: HARDWARE
- Topic: Building a replacement MTX PSU
- Replies: 166
- Views: 202129
Re: Building a replacement MTX PSU
Thanks!
How about getting Dave to put up a "How to build a MTX PSU" on his website?
How about getting Dave to put up a "How to build a MTX PSU" on his website?
- 06 Jul 2015 20:32
- Forum: HARDWARE
- Topic: Building a replacement MTX PSU
- Replies: 166
- Views: 202129
Re: Building a replacement MTX PSU
You could try fitting a 1A time delay / anti-surge fuse. I only specified the fuse at 1A to protect the diodes (which have an average current rating of 1A, but can handle a slightly higher peak current rating). Well, that did the trick! http://kimberlinwyer.com/images/img_1679.jpg Thank you very mu...
- 05 Jul 2015 18:45
- Forum: HARDWARE
- Topic: Building a replacement MTX PSU
- Replies: 166
- Views: 202129
Re: Building a replacement MTX PSU
Replaced blown 1A fuse. Powered up PSU without connecting to MTX and green LED was on. Connected to MTX, powered up, green LED came on for a fraction of a second and no CP/M boot. The 1A fuse had blown again. Replaced and green LED is on. Could the problems be associated with the MTX power capacitor...
- 04 Jul 2015 23:17
- Forum: HARDWARE
- Topic: Building a replacement MTX PSU
- Replies: 166
- Views: 202129
Re: Building a replacement MTX PSU
I don't read any resistance at all and I can't see any shorts. I have changed the screws and washers on the DC to DC converter to plastic just in case as it looked like the washer might have touched something. Hopefully I'll be able to get a replacement fuse or two from Radio Shack when they re-open...
- 03 Jul 2015 20:36
- Forum: HARDWARE
- Topic: Building a replacement MTX PSU
- Replies: 166
- Views: 202129
Re: Building a replacement MTX PSU
Well, I hooked it up to the MTX and REMEMOrizer, powered it up & watched it load CP/M. I was really excited by that stage, but then I noticed that the green LED wasn't lit, so I then rebooted straight into MTX Basic (by holding down the shift keys). I just about saw the ready prompt as the scree...
- 03 Jul 2015 02:43
- Forum: HARDWARE
- Topic: Building a replacement MTX PSU
- Replies: 166
- Views: 202129
Re: Building a replacement MTX PSU
I've just tried something different. Using the MTX 240v PSU connect to the step up transformer, I measured the AC voltage from pin 1 and 4 and the result on the meter was 16, so it must be re-calibrating or something.
- 03 Jul 2015 00:47
- Forum: HARDWARE
- Topic: Building a replacement MTX PSU
- Replies: 166
- Views: 202129
Re: Building a replacement MTX PSU
Ok, thanks.
So I should be ok to solder on the plug and connect it up to the MTX??!!! (gulp!)
So I should be ok to solder on the plug and connect it up to the MTX??!!! (gulp!)
- 03 Jul 2015 00:24
- Forum: HARDWARE
- Topic: Building a replacement MTX PSU
- Replies: 166
- Views: 202129