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Ok, removed the badge and did a light cleaning on the case. Looking much better. Any idea where I can buy a new badge? The only one I have found is https://corei64.com/shop/index.php?route=product/product&product_id=300, which is ~$45 including shipping.

I am now able to load a D64 image with FIRM0630.PD2. Thanks @bitfixer !

I filed an issue at https://github.com/bitfixer/petdisk-max/issues/11.

I have had no success. I am still waiting for bitfixer to follow up with me. I'm a little discouraged.

I tried loading the wedge and then loading the d64 file: I tried loading the d64 directly without the wedge: It just hangs. I emailed bitfixer and got this response so I am hopeful:

https://www.the8bitguy.com/25753/petscii-robot-shareware-available/

@daver2 When I use load "$:xxx.d64",8 it hangs forever.

How do you do this?

Hmm, not sure what I'm doing wrong here. I loaded the wedge first. Is this required? I don't get any lowercase characters. Is this normal? I've renamed the file to just petrobots.d64. I tried `load "$: PETROBOTS.D64", 8` but no luck.

Hello, I'm trying to run the shareware version of Petscii robots from https://www.the8bitguy.com/25753/petscii-robot-shareware-available/. My PET 4032 says it is running basic 4.0. When I try to load the game from PETdisk, it hangs forever. I tried another .d64 demo for the PET and it would not...

Follow up question. The glass CRT screen has some sort of spotted gunk on it. I've heard to use Windex and also never use Windex. The gunk is pretty stubborn. I tried removing it with a plastic edge but no effect. Any idea?

I got my PET up and running with help from others. Now it's time to clean it. I've watched some youtube videos about cleaning (Magic Eraser, baking soda on tough spots but don't remove the paint). The badge is pretty worn around the edges. Should I try to remove it and get a new one? What is the...

The cassette port works, not sure about the user port and IEEE488 port. I fixed the keyboard today after watching Chuck's video. Still need to verify all keys work. How do I test the ports using BASIC?

My PET lives! A local expert used his Tynemouth board to narrow down the issue to the first bank of DRAM. Unfortunately, all of the DRAM tests passed (not sure why). So we decided to replace each odd-numbered 4116 DRAM chip until we came to the faulty chip. I remember @daver2 mentioning that...

Ok, I switched to capture off source channel 2 and tried pin 6/14. Unfortunately, the waveforms are vary messy for pin 14. I had to make a movie of it. Any idea how to compare this to pin 6? Pin 14 - https://drive.google.com/file/d/152YBSd-coSvxX7hu7pBg6kQHV3liSMFq/view?usp=share_link Pin 6 -...

@daver2 , I'm not sure changing the timebase is helping. I adjusted the timebase from .5 microseconds/div (in the doc) for Pin 6 to 1, 2, and then 5 microseconds/div. I attached the pics. The top waveform for pin 1 is indeed more compressed, but the bottom waveform doesn't get any clearer.

@Dwight Elvey I really appreciate your input on this thread. In fact, as a newbie, I was going to ask questions on soldering that you have now covered. I do predict some repair will be needed on my PET soon. I should be able to take more oscilloscope readings this weekend.

Great! I did some more input/output pin pairs and put them into a doc for easier viewing. I don't know what to make of pin 6 and pin 8. They seem to show lines for HIGH and LOW together (maybe because I have the trigger set to falling edge). The output looks like all HIGH. Possible issue...

OK, I did some horizontal shifting and did another run. pin1 is on top of the attached pics (timing) pin 2 (input) clearly shows H, L, H, L, H pin 18 (output) shows pulsating waveforms. I attached a screen grab from a video I made. The main waveforms don't seem as clear cut. I see a H...

Ok, I pulled out the trigger knob and made the 2V/div adjustments you suggested. Mode is on CHOP. https://drive.google.com/file/d/1OhNZlwElNxAt5PEu-1lacmcFnE9jwBsV/view?usp=share_link shows UE8 pin 1 on top of the screen and pin 2 on the bottom...