Sakhr AX-370 hangs after the startups (potential keyboard problem too)

بواسطة Devourer_ITA

Supporter (5)

صورة Devourer_ITA

03-01-2023, 18:25

So, I bought a working (it was sold as having a broken floppy drive, but pictures of it booting the menu were provided) AX-370 from a reputable seller from Egypt, but when it came and I tested it, this happened

https://youtu.be/NJjbxWwGJG0

The memory amount is correct, but it just can't reach the menu, I even tried letting it warm up for an hour or so, but no difference.
I also tried to hold CTRL to skip the menu as the WIki says, but no luck and the reason why I was pressing the caps lock key in the video is to show that it didn't work (I partially opened up the machine, and now the light works, but no way to skip the menu with CTRL, so I don't know, maybe the ribbon need to be inserted better, and me lifting it partially got it just a bit inside).

Since it was shipped from Egypt by UPS (which also broke the second cartridge slot, it no longer holds up, hopefully it can be saved with hot glue or scotch since I kept all the pieces I could find and it's a rare machine so I don't want damage), so maybe one or more bump dislodged a chip or put some dust/metal piece in the chip's legs and it prevents the ROM switching or something.
I, unfortunately, don't have cartridges to check if I'm able to boot through them since I figured someone would ask if I had tried, I was planning on getting a flashcard after receiving this PC.
I don't have a long enough screwdriver to open it entirely either, but I could open the keyboard area, and the motherboard CAKED in dust and dust bunnies, the keyboard looks bent somewhat, and all connectors outside are pretty rusty (at least I got video and seemingly audio from composite so it might just be aesthetics).

I have a local repair guy that might try his hands at it and hopefully fix it, but I'd like to hear opinions from y'all so I can give him a hint on a likely problem rather than have him go blindfolded, and feel free to recommend repairman in the EU if y'all think the problem might need diagnostics done by an expert.

Thanks in advance for helping me out

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بواسطة Manuel

Ascended (19470)

صورة Manuel

03-01-2023, 22:10

It looks like it's hanging up running the internal Arabic software. Maybe that ROM chip got broken? Although the logo still works... weird. I hope someone can help you out.

Where are you located?

بواسطة Devourer_ITA

Supporter (5)

صورة Devourer_ITA

04-01-2023, 00:40

Yeah, that's the weird thing, maybe it's stored in a different chip or something, so the boot works, but it hangs when it tries to switch?

Also I'm located in Italy

بواسطة alali.ahmed.t

Master (164)

صورة alali.ahmed.t

05-01-2023, 19:52

The machine has only one rom chip for bios, subrom, arabic rom and all other programs.

I would check the rams and vrams. If you could too, try to get 27c020 chip with C-BIOS and try to run it and see if will boot all the way.

بواسطة Devourer_ITA

Supporter (5)

صورة Devourer_ITA

05-01-2023, 22:20

alali.ahmed.t wrote:

The machine has only one rom chip for bios, subrom, arabic rom and all other programs.

I would check the rams and vrams. If you could too, try to get 27c020 chip with C-BIOS and try to run it and see if will boot all the way.

Yeah, I found pictures of the boards and I only found a chip that looks like a ROM, so it could detect the RAM yet still fail.
The eBay post actually did show it boot and the Arabic menu so that's weird that it would fail suddenly

I'm not sure if the local repair guy has the necessary equipment but I could try asking regardless, thanks for the tip!