AndyDiags's latest activity

Thanks for the photo! It is indeed a Model 1 power supply. If the DC voltage is indeed around 10v, then my guess is that one of the...

The DC voltage is used to generate the 12v DC. So if you're getting 9.9v DC, the TRS won't be able to convert that to 12v DC. Can you...

It's the original image from an ad. In 1981, Radio Shack ran some ads in popular Japanese microcomputer magazines. I got the image...

Here you go: https://www.shockrisk.com/index.php/2024/05/01/trsdos-v2-3-for-japanese-trs-80-model-1/

I was able dump my floppy disk, and it did contain the Japanese TRSDOS! I've posted it here...

One more update. I noticed that the version of the FreHD loader I used was older. I found the newer version, and it looks good! I...

Thank you! Rookie mistake on my part. It was really late last night, but I wanted to see if I could make any progress. HUGE PROGRESS...

If that screenshot is what you actually did then two things. Line 30 has an error it should be "INP" not "IMP". You did not issue...

More progress! I found a 4gb SD card and got a bit further. I re-ran the following: 10 OUT 197,1:FOR I=0 TO 64:PRINT INP(196);:NEXT...

Volume already named FREHD. The cable is pretty short already, picture below. I made my adapter based on Bill Buzbee and Larry...

Thanks for checking, mine is the same, at 2.56v. This confirmed nothing funky was going on the power rails, so I continued with...

Just saw your image, hard to tell but is there a jumper on Q1 to replace the missing transistor? Also double check your your firmware...

Not connected to the computer I believe in that case the green LED should flash once and red stay off. Same with or without SD card. So...

Thank you for the info Kool65, extremely helpful! On my first try I did get one green blink because the system wouldn't boot, but then...

I've build a FreHD and trying to connect it to my TRS-80 Model 1, but it's not working. Can someone with a working FreHD help? I'm made...