foundling-48k!

Hello, scl^mc There may also be a problem in the blocking capacitors, if there are electrolytes definitely candidates for replacement (the little ones in cribs, as I understand it, you too crawled) The keyboard rake is permanent or has a temporary effect (for example, from a block power supply of another is normal) measure the 5V bus and VG93 just pull it out

Hello, scl^mc Processor in the crib? It feels like A14 and A15 are somewhere short of the signal D3-D5. In general, it’s worth going through the standard methods of visual inspection, cleaning the board, Lose the connections and then look further at what can be wrong (at least according to case temperature)

Hello, All While furiously climbing the shelves in the apartment, I came across my first zx!!! :v2_yahoo; straightaway; a bunch of memories associated with him came up. and most interesting - it works! :v2_blink; failed; almost 8 years on the shelf - and works! (by the way, for some reason I found the pussy harness in the same box :v2_jawdr; .); But! (always, when it seems that everything is fine, this very “but” comes out: v2_wink2; .); neither its native drive (teac), nor the one I wrote about (electronics-ms5313) do not seem to work. because it was speculated to launch with them refuses, and when connected to the pussy they just rotate from time to time pancakes. none of the floppy disks were readable - neither on PC nor on spec (maybe spoiled? They lay motionless for 3 years). without a spec-48 disk drive at the beginning, it seems worked fine, then colored cubes often began to skip and appear obscene sounds. :v2_cry; half; buttons on the film keyboard (middle area: 4-6, r-t, g-h, v-b and arrows) does not fury. I still sin on the block nutrition. when I was still using it, it happened a couple of times pens with power supply, fortunately for me, I knew a repairman. maybe now he's just does not provide the necessary volts (or it does not have enough power). in this regard: 1. I need a working 5'25' dmskogryz 2. A power supply would also be useful. :v2_wink2; Now; I can’t take any photos yet, but I’ll add them soon.otherwise the Pentagon was lost during repairs, it seems to me that it was either stolen (doors were constantly open), or the ancestors leaked it by mistake (it was also in the box, because I was using emulsion). but I want to squeeze the real thing. and look what's on these found on floppy disks (about half of them are completely unfamiliar to me, I have there were ~40 of them, and these are almost one and a half hundred)

Hello hero I palpated all the small parts, and didn’t see any cracks or other oddities to the touch. and percent, and pzu-ha, and ay, and vg-shka - all in cribs :) I still blame the power supply, because with the disk drive connected there’s really no starts

Hello, scl^mc and, damn it, I'm looking for faster. he had a lot of 5-inch floppy disks with rarities. nobody haven't you seen him?

Hello hero damn power supply and take it (you don’t need real-pc anymore :D)

Hello Ronin As it turned out, it all seems to be a matter of power supply. instead of 12v it gives 11v, instead of 5v - 4.8v. As far as I remember, zx is quite sensitive to such voltage drops. An acquaintance of mine at one time was tinkering with his pentagon, or rather, his power supply. there The voltage values were also lower. and the glitches were such that after smoking I couldn’t you will always see.:D Now I'm looking for a PC power supply. pics coming soon