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Type: Posts; User: ZapdoZ

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  1. The pinout of the socket should be something like...

    The pinout of the socket should be something like this (But I only probed VCC and GND) http://files.shikadi.net/malv/images/devices/eeprom/eeprom-32pin.svg
    No wonder the BIOS isn't working :D
    I...
  2. The one 32 pin BIOS chip on eBay seems to be for...

    The one 32 pin BIOS chip on eBay seems to be for a Pentium class machine. Is there a pinout of both BIOS sockets somewhere? Perhaps I can build an adapter. Otherwise, is a Pentium BIOS going to work...
  3. Well that isn't great... But how do I find out...

    Well that isn't great...
    But how do I find out where these traces go if I don't have any schematics?
    And even if there was another trace corroded, wouldn't I at least get something as a POST...
  4. I now finally got some time to work on this board...

    I now finally got some time to work on this board again

    I jumpered two traces, without any difference.

    The board still doesn't POST

    With the POST card in, I can see that the LEDs for +12V;...
  5. Thanks for the reply and sorry for me respondig...

    Thanks for the reply and sorry for me respondig late.
    If I'm going to replace the floppy drive, I will go with the emulator you linked, although I find $25 a bit too much for such a simple adapter....
  6. Searching for a Toshiba T1850C floppy drive replacement

    Hi everyone!

    I have to replace the floppy drive of my T1850C. It is a Matsushita EME-278T.
    The read/write head mechanism isn't fixed, so it is just lying there and i can't put disks in the drive....
  7. Sorry for the late reply. I think i will try...

    Sorry for the late reply.
    I think i will try placing jumper wires, i mean i can't make it worse than it is now: broken.
    I do not get any beeps or POST codes, although i tried several BIOS chips and...
  8. Help identifying a 486 board + finding schematics

    Hi everyone!

    I need some help identifying this board and finding the schematics for it. The damage from the corrosion is so big that i can't identify which trace goes where. I want to fix the...
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    The head moves back correctly. As testing...

    The head moves back correctly. As testing equipment, i only have a multimeter. For repairs, i have a soldering iron
  10. Replies
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    Drive 0 - Disk 1 : 21 read error 1 0 Drive 0 -...

    Drive 0 - Disk 1 : 21 read error 1 0
    Drive 0 - Disk 2 : 21 read error 1 0
    Drive 1 has a broken closing mechanism. trying to close it manually by keeping the things down is not really possible.
    So...
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    Its "21 read error 1 0" now

    Its "21 read error 1 0" now
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    It says "34 syntax error 0 0" everytime

    It says "34 syntax error 0 0" everytime
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    I typed this in and the drive did something for...

    I typed this in and the drive did something for about 30 seconds, then the front led turned red. How do i test the disk?
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    I got 2D double sided double density 48 t.p.i...

    I got 2D double sided double density 48 t.p.i soft sectored disks at hand, can i format them with the 8050 format? And if yes, how?
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    Sorry for being inactive so long. The cable is...

    Sorry for being inactive so long. The cable is making a good connection (I checked with my multimeter). I cleaned the connectors and the drive now reacts when i run the program. It says "21 read...
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    It says 0 0 0 again. The main drive LED flashes...

    It says 0 0 0 again. The main drive LED flashes red for like 0.5 seconds, then it turns green again. The drive doesnt make any sounds at all.
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    Got it now, just typed everything in lower case...

    Got it now, just typed everything in lower case
    51047
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    So when I try to load something (load "$",8,1) it...

    So when I try to load something (load "$",8,1) it says file not found and the front LED turns red.

    10 OPEN1,8,15,"I0"
    20 INPUT#1,E,E$,T,S
    30 ?E;E$;T;S
    40 CLOSE1

    This script just gave me a...
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    CBM 8050 disk drive not working

    Hello everyone!

    I found a CBM 8050 disk drive in the basement and connected it to my MMF9000.

    Whenever I try to load or save something, the main LED turns red and the drive does nothing.

    So,...
  20. Im back now after stoping this project for a...

    Im back now after stoping this project for a while. The Machine is still working, but the keyboard is getting worse (the "a" now takes about 10-30 times till it works)

    I also got a soldering...
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    Thank you all so much! I found three broken...

    Thank you all so much!

    I found three broken traces and set a jumper to replace all of them.

    Now I can finally get into the system BIOS and the keyboard errors is gone!

    50683
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    Is it possible to desolder the Battery?

    Is it possible to desolder the Battery?
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    The battery is leaked and you can see some board...

    The battery is leaked and you can see some board damage. images provided
    50629
    50630
    50631
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    ISA-486SV2 Keyboard interface error

    Hi there!

    Whenever i start the computer, the BIOS loads and i always get a Keyboard error message. I tried out different keyboards, different keyboard settings (on the keyboard), different BIOS...
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    And the Controller card...

    And the Controller card...
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