Please help me identify the breakdown of the ZX — ZXNet «hardware.zx»

From skyther To All 22 July 2006

Hello, The Exploited Are the on/off states different for 48? Otherwise, it seems to me that the quartz is dead. Then look at what kind of transistor is sticking out on top - most likely it’s superfluous, although... And the coins with the letter "G" - they are G - change them to 41256.

From skyther To All 22 July 2006

Hello skyther Yes, check the power supply for 128, I had this happen when the bank burned out and There wasn’t enough power, but it’s better to power it from ATX and see...

From Vladimir Zavinsky To All 22 July 2006

Hello, All Please help me with advice. The ZX 128 (compact 128) broke down, first the disk drive started to malfunction (I read it, then no), and then instead of a normal image, stripes and cubes appeared... However, I don’t think the drive has anything to do with it, this is just a side note. Before this, I closed the synchro with the ground once and connected the ground to the ground a couple of times sync... But after it worked fine... What could be the reason? But I'm not an expert, so it's better to keep it simple... What can I replace to make it work? :) -+- And another ZX 48. Instead of an image, it just has a white screen... That is. signal there is, but he’s nothing like that. -+- Here are photos of the boards: http://www.v-a-z.narod.ru/01.htm From top to bottom: ZX128 and what it displays on the black and white monitor ZX48 and what it produces...

From Mark Antonov To All 22 July 2006

Hello, Vladimir7 with a higher degree of probability in 128 two mskh memories died. look which of the mskh 565ru5 heat up more. and also pull it out of the z80 panels, rom, vg93 - what will appear on the screen

From Mark Antonov To All 22 July 2006

Hello skyther sky> quartz died. If I had died, there would have been no sweeps at all

From Orionsoft To All 24 July 2006

Hello, Vladimir7 Vla> Where can I get an already flashed test? I can sew it in 512

From Vladimir Zavinsky To All 24 July 2006

Hello, The Exploited I saw a test somewhere here, but how to flash it? Where can I get a pre-stitched test? -+-

From Vladimir Zavinsky To All 25 July 2006

Hello Orionsoft What does 512 mean? And perhaps it makes sense to simply insert a ROM with the usual correct Spectrum information? Perhaps the information on it was damaged in some way and due to Is this all these glitches? :)

From Orionsoft To All 25 July 2006

Hello, Vladimir7 Vla> What does 512 mean? 512 is the volume of the ROM, i.e. 64 kb, you can also flash the usual information or verify (there was nothing) your boobies

From Orionsoft To All 26 July 2006

Hello, Vladimir7 Vla> on mine it says can it be altered? if it has a transparent window, then it can be altered. I also have new msx just in case... a remake costs a box or two of grapefruit juice.

From Vladimir Zavinsky To All 26 July 2006

Hello Orionsoft 27C512JL - this is what it says on mine, can it be changed? Or is it better to buy a new one? Are there any affordable analogues on sale now? By the way, how much will the reflashing cost? -+- I found a burnt out resistor on the power supply, I haven’t changed it yet, maybe it’s something Is it his business?

From Orionsoft To All 27 July 2006

Hello, Vladimir7 Vla> maybe the sun came out while I was looking at the computer inside... well that's unlikely

From Vladimir Zavinsky To All 27 July 2006

Hello Orionsoft Inexpensive! :) If I don’t find another problem, it would be great to try to fix it. I still can’t get around to buying a tester to check what’s possible. There is a window on the chip. Perhaps it was because of him that she was damaged. I'm like I read somewhere that their UV is reset, maybe the sun came out while I was inside the computer looked at it... :)