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Nice, the 400k drive will probably need some elbow grease before working again

Also, concerning sound, broken trace somewhere Looking at the video, the image is stretched up too much… so either a voltage issue, or a potentiometer to be properly set to achieve the correct dimension.

Never seen this issue, but you still can have an issue with the Analog Board, what voltages have you got at the Molex (HD connector) Seems like the 12 volt is ok but the 5 volt is not in the first place.

IIRC I used an ISO file

will be better in the Trading post thread section

USB stick didn't worked for me, had to use an external HD

Not a 100% but IIRC there is a bunch of LED for troubleshooting purposes in the Logic Board

really cool

Caps first...

Well, to be honest, if you just look at the label and serial number, you should have a FDHD unit. But the serial is just a sticker in the rear case, so, probably the rear bucket was swapped at some point. All new models (M5011) were sold under the FDHD or Superdrive name, both having it...

I agree, they are always bad

Can you try monitoring voltages ? You should know what you are dealing with.

Voltage probably too high and security kicking in. You have got the chime… try lowering down the voltage (on the side you have got a potentiometer to do so)

Yes, you need to remove PSU and fan, once that done, the Logic Board will be free. you have to remove the HD and floppy also for easy access.

Yes, nothing wrong with it, your LCD is not playing nice with the IIsi. As Byrd says CRT is the best option.

One of the known issue for those printers is the plastic link, to the paper feed rod, being too thin and breaking. the stepper motor is unable to drive the rod and paper stays still. Here is the file to make a new one with a 3D printer : https://jcs.org/2022/10/02/whisper_writer

Atari 822

3M and Trendcom. The bigger on the left and the small 100 on the right. 3M also sold a whisper WRITER, with a keyboard…

I am not sure, but Trendcom went bankrupt, and probably was bought by 3M. The small 100 was simply rebadged again.

The Trendcom 100 was also sold under the name WhisperPrinter by 3M