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In my never ending quest to burn bipolar proms I have acquired a pin-master 48. I have an rs232 interface cable to connect it to my windows 98 pc but can't get it to communicate because it says I'm missing the mqpport.vxd driver. I have installed the promdriver software from the mpq site but...

I'm currently fixing a Nascom 2 (http://www.vcfed.org/forum/showthread.php?57307-Nascom-2-Troubleshooting)and need to replace a prom that I think does some sort of decoding. Looking here:http://www.nascomhomepage.com/pdf/nas2proms.pdf it's a IM5600CPE the equivalents of which I put into the...

Just got one of my grails.a Nascom2. Got it powered up but just getting a screen of random characters. Not tried much diagnostics yet but have noticed 2 LEDs on the motherboard but can't seem to find out what they indicate. Anyone know their function?

I have just aquired a microtan 65 clone and want to test it using the version of LIFE from the original manual. Unfortunately I can't find a good copy.The manuals here:http://www.microtan.ukpc.net/ doesn't have the listing and this...

I am now trying to do this composite mod for my TI99/4A: http://www.ti99.com/ti99r1.htm I have followed the directions and tested and insulated all my connections but on two T.V.'s (both lcd) I get a barley visible grey screen that is like a poorly tuned in aerial signal.If I use the aerial...

So I've got the expansion interface working with my video genie and it came with a matching dual disk drive but unfortunately the second drive isn't spinning. It's a TEAC FD-50A and I presume it's the motor that spins the disk that has failed.It's marked as a TEAC 05279 and I'm wondering if any...

I have just acquired a EG-3014 expansion interface for my video genie (same as the x-4020 expander) that worked for a while but has now died.I have traced the fault to the 15v transformer in the PSU. I have sourced a similar transformer but it's rated at 6A and I can't find out if that's too...

So I got my nanopeb and have it working but it seems like unless I have an extended basic cart I won't be able to run much.It there a way to load extended basic into ram or am I stuffed till I can find an extended basic cart somewhere (they seem pretty rare). I'm in the UK-Would an American EB...

I might be getting a trs-80 model 16 but without keyboard.How difficult are they to obtain?

Been trying to put ldos 5.1 on a double sided 80 cylinder disk following this info: http://www.trs-80.com/wordpress/zaps-patches-pokes-tips/dos-tips-tricks/#dblsided this command seems to not do anything: BACKUP SYS/SYS:0 :1 (NEW) so I used BACKUP SYS/SYS:0 :1 (NEW,SYS) then BACKUP :0 :1...

Since this is another problem I figured it needs a new thread. As stated in my video problem thread my TRS-80 has now started typing by itself.Random symbols and letters appear onscreen as if keys are being pressed even though I'm not touching anything.the return key seems to be pressed most...

Now I got the disk drives working with my TRS-80 I've been using it more and have noticed a little problem with the display. The top line has a problem where if I type certain characters they change.If I type X's they all appear fine but I type 7's three of them near the middle will turn to 5's...

So now I got LDOS working with my trs-80 and EI it seems that I have to leave the LDOS disk in the drive for any dos commands to work.So how do I go about getting a dir or running a file on another disk when dos doesn't work without the ldos disk in.Do I HAVE to run with 2 drives?

I now have an expansion interface for my trs-80 and am looking to sort out getting disks working with it.I have a disk drive I use with my coco that should work fine but I need a boot disk. Since it's a model 1 I have read that I can't use a PC to make the disk as they can't handle the single...

My PET recently had a failure with it tripping the mains and smoking a bit.It looks like the smoothing capacitor in the PSU has failed. I have looked around and cannot seem to find a replacement. Any idea where i might get one or is there a modern workaround. I really don't want to have to...

Took my apple II to a retro show last weekend to show it off but being switched on all weekend has done it no good. Now when I turn on all I get is this screen. I have re-seated all the socketed chips and swapped the ram chips about after reading other threads on this forum. I presume this...

I've expanded the memory on my coco 2 by adding bigger memory chips and was wondering if it's possible with the trs-80 as well.I know I could use an expansion interface but they are very hard to come by. Thanks.

TRS-80 COCO HARD DRIVE SPECIALISTS FLOPPY CONTROLLER AND CABLE So I just won this on ebay. It's coming from America (I'm in England) and am hoping to use this with my coco 2. I figure there won't be any compatibility issues with it being American and my coco being UK? What disk drives will...

I have a trs-80 model I that's been fine since I had it a few months ago but now the keys H,I,J,K,L,M,N and O have stopped working. I was trying to (unsuccessfully) load a wav tape file from my phone when some of the keys started repeating.When I pressed the 'M' when entering the system command...

One of the reasons I got an apple ][ was because it was the first computer I ever used.It was back in 1978 when I was visiting an aunt who was head of the maths department at her school and she had an apple ][ to figure out what these new fangled computer things were about.She showed it to me...