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It's interesting that I can't get "k10u-rld-h.raw" or "k10u-rld-h-fmt.raw" to write an image
with libdsk's dsktrans, SAMDISK, or BIN2IMD. Nothing seems to be able to create the
k10u-rld-h..imd or...

TJ,
You can use cpmtools (or cpmtools built with libdsk) to access the Files and get directory listings.



$ TD02IMD K10U-RLD.TD0 > K10U-RLD.TXT

TD 1.4 5.25 LD MFM S-step, 2 sides ADV
40/0:...

Yes, it is easy. PM me your email address and I'll send you the Document.


Larry

Rick,
So, you are going to use a stock Model 1 keyboard, and the EI that has zero memory installed.
If so, then all you need to do is add the two banks of 16K RAM to the EI. You will need two
of...

Rick,
Your best bet is to keep the 64K RAM IC's in the Keyboard and not add any memory to the
EI. The 64K RAM is a lit better than the Older RAM that used the -5VDC on one pin.
Those are prone to...

What is the Device Number of the Drive? 8, 9, 10, 11 ??

After you format the Floppy, Did you Initialize it? What was the Read Error?


Send me a PM with your email address. I have a PDF...

Rick,
I have no knowledge of what the FreHD auto boot ROMS do. I think you need Ian involved.


Larry

Rick,
Can you answer the following questions?
1. What version ROM is in your model 1? ver 1.1 or 1.3?
2. Do you know if it is the 3 ROM set or how many ROMS are in the Model 1?

Try the...

Bill,
I'd just go back and check A{0..15} using the Pullup Resistor and checking the HIGH and LOW Voltages
on the Address Lines to the ROM(s). If they all the same, and what you expect, then they...

Bill,
The replay from David was years ago and I had saved it in a Note under my Model 1 folder.
Sorry for the confusion.

Try holding down the BREAK Key, and keep it DEPRESSED, then Turn on...

Here is a bit more information I OCR'd.




CHARACTER ROM D3

A 2716 (2K x 8) EPROM is used to store the dot information for
every character displayed. Each character is set in an array of...

I've created three screenshots of the Floppy layout and the dummy disk screenshot. Also exported
the *.HFE file for booting on the GOTEK w/Flashfloppy Firmware. Need your Email address.
...

Bill,
I'm 99% sure you have the problem fixed with the HIGH on A6 with a LOW on the Input as shown by the
following SN74LS244 Photo.

Larry

65490

Bill,
I found a previous note that David Miltimer had posted about {A7..A15} for the Model 1.
I had forgotten about it, until I was searching for other information.



So, try removing the NOP...

Lithium Grease will attract Dirt/Dust. Why not use some Dri-Slide (a Motorcycle cable lubricant that does not
attract dirt/dust)? It available at most any Motorcycle shop, and a small can will be...

Bo Zimmerman has lots of Commodore Info here:

http://www.zimmers.net/
http://www.zimmers.net/commie/index.html
http://www.zimmers.net/anonftp/pub/cbm/index.html


Larry

Let's start with the first screen and understand it. It is as follows:

MEM@SIZE @@@@@@@@ which has 7 spaces between the two character strings


MEM@SIZE1234567@@@@@@@@
So, this is an...

Here are a couple Schematics I found somewhere on the Internet. It has the same Transistors.

AT_compow11.gif
ATX_psu_schematic.pdf

Send me a PM with your email address and I'll send you an...

The Drive Select Signals originate from Sheet 5 Area B5 and go to Sheet 9 Area A8.


Larry

65404 65403

I had previously had extracted the files from an Eagle Image File and the "EBIOS.ASM"
file can help you build a small test routine.

Send me PM with your email address.


Larry

I located the Service Manual for the Eagle on Bitsavers. It explains the 8002 and 5037 pretty well.

p.46



p.129

It looks to me like the Text that should be displayed is mostly lower case with
a splattering of Graphics for the SPACE 0x20.





D 0x44 vs ox64 = 0100 0100 vs 0110 0100 = Bit 5 Different...

Yes, SIR! Now, when U56 is replaced, run the NOP Generator again and see what you get.

Larry

Chris,
Good Deal. You can run Dave Dunfield's IMAGEDISK utility TESTFDC.COM to see how your Floppy Disk Controller (FDC)
is working for the various formats. If you need a different FDC you can...

Bill,
OK, the first part is correct. Then you say same for A9-A15. Do they all follow Pin 8 of U55,
or did you test A9 (and it reacted the same, then A10, then A11, then A12, then A13, then A14,...