UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

TonyDuell · 25th Jul 2022, 5:03 pm

That's the HPIB version of the printer. The microcontroller used has an internal HPIL interface, the HPIL model simply brings that out to the rear panel via the normal transformer, etc. The RS232 and Centronics models have internal interface boards that communicate with the microcontroller over a parellel data bus.

And the HPIB model? Amazingly it the same microcontroller as the HPIL version with an HPIB-HPIL interface board. Something like an HP82169 with different firmware.

I hope I am wrong, but that flexiprint is probably corroded and will be open-circuit.

25th Jul 2022, 5:03 pm	#25
TonyDuell Dekatron Join Date: Jun 2015 Location: Biggin Hill, London, UK. Posts: 5,208	Re: HP 150 Touchscreen II repair That's the HPIB version of the printer. The microcontroller used has an internal HPIL interface, the HPIL model simply brings that out to the rear panel via the normal transformer, etc. The RS232 and Centronics models have internal interface boards that communicate with the microcontroller over a parellel data bus. And the HPIB model? Amazingly it the same microcontroller as the HPIL version with an HPIB-HPIL interface board. Something like an HP82169 with different firmware. I hope I am wrong, but that flexiprint is probably corroded and will be open-circuit.