There are machines that are so custom that they cannot be repaired, the PC-1512 is a good example.
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My Tipeee: fr.tipeee.com/rodrik-studio/
00:00 Introduction
02:12 First checks
09:09 Strange behavior
11:23 CPU out of trouble
12:15 A quick tour of the diagram
14:21 It is not repairable
Description :
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The PC-1512 is PC compatible, but if the software compatibility is good, on the hardware side it is not the same thing.
Small list of examples:
- Non-standard power supply in screen plugged into a non-standard socket at the machine.
- Non-standard CGA output on 6-pin DIN with partly inverted signals and badly designed I would say because the screen pulls on it strongly to avoid too much interference.
- Custom mouse
- Custom keyboard neither DIN nor PS/2 with specific joystick port
- Motherboard with non-replaceable Amstrad ASICs
- non-standard ROM
So it ended up breaking and there's nothing I can do about it. I don't have the 40039 to replace it.
Good viewing.
22 июл 2024