Tried hooking up the HxC to a Tandy 1000TX with it hooked up the drive status light stays lit (like it's hooked up backwards). So I tried flipping the ribbon around and the computer won't turn on. Have the jumper set to standard PC A:\ setting... Comfirmed it works on a 486 computer, amiga 500 and TRS-80.
Is it just incompatible or any idea's??.. I have a older Tandy SX I might try later and also have a PC jr I haven't tested yet.
Tandy 1000TX with HxC
Re: Tandy 1000TX with HxC
Do you have the floppy pinout of this computer ?zmame wrote:Tried hooking up the HxC to a Tandy 1000TX with it hooked up the drive status light stays lit (like it's hooked up backwards). So I tried flipping the ribbon around and the computer won't turn on. Have the jumper set to standard PC A:\ setting... Comfirmed it works on a 486 computer, amiga 500 and TRS-80.
Is it just incompatible or any idea's??.. I have a older Tandy SX I might try later and also have a PC jr I haven't tested yet.
EDIT :
Found it. It seems that tandy have put +12V & +5V power supply lines on the floppy cable.
http://vintage-blog.peacon.co.uk/downlo ... -vol-1.pdf
You need to cut wires 3,5,7,9,11,29,31 and 33 on the floppy cable before pluging the HxC (or any standard floppy disk drive).
The "computer don't start" is probably the right cable way, but you need to cut these lines to avoid shortcut...
Please note that you have probably damaged some lines of the HxC with the +12V voltage...
Hopefully you have just to change the 74LS38 chip...
So be careful with this computer ! It is dangerous
Re: Tandy 1000TX with HxC
Jeff wrote:Do you have the floppy pinout of this computer ?zmame wrote:Tried hooking up the HxC to a Tandy 1000TX with it hooked up the drive status light stays lit (like it's hooked up backwards). So I tried flipping the ribbon around and the computer won't turn on. Have the jumper set to standard PC A:\ setting... Comfirmed it works on a 486 computer, amiga 500 and TRS-80.
Is it just incompatible or any idea's??.. I have a older Tandy SX I might try later and also have a PC jr I haven't tested yet.
EDIT :
Found it. It seems that tandy have put +12V & +5V power supply lines on the floppy cable.
http://vintage-blog.peacon.co.uk/downlo ... -vol-1.pdf
You need to cut wires 3,5,7,9,11,29,31 and 33 on the floppy cable before pluging the HxC (or any standard floppy disk drive).
The "computer don't start" is probably the right cable way, but you need to cut these lines to avoid shortcut...
Please note that you have probably damaged some lines of the HxC with the +12V voltage...
Hopefully you have just to change the 74LS38 chip...
So be careful with this computer ! It is dangerous
Lucky I only tried it once.. I will have to make my own cable then I guess.. The HxC is ok, just tried it on Amiga 500 , TRS-80 and PC works good.
I have piles of old computers so I will be sure to post the results of anything that is not on your list.
im going to try epson QX-10 next i think ill find the pin outs first this time.
Thanks for your help,
Nick S