CoCo2 26-3134A with 230V~ ???

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jedie
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Re: CoCo2 26-3134A with 230V~ ???

Post by jedie »

Thanks!

Have you seen the "Service Manual" here: http://www.colorcomputerarchive.com/coc ... ndy%29.pdf ?

Maybe i should simply order the 2x 10x diodes... Then i can build 2x 4x antiparallel combinations, so i can drop between 0,7V and 2,8V (4x combinations) om both directions on A1 and A2...

Then i can try to find the highest number of serial combinations that is stable usable...

Think this is the easiest way...
... too many ideas and too little time ... Related stuff written in Python:
Dragon 32 emulator / PyDC - Python Dragon 32 converter: https://github.com/jedie/DragonPy
DWLOAD server / Dragon-Lib and other stuff: https://github.com/6809
sorchard
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Joined: Sat Jun 07, 2014 9:43 pm
Location: Norwich UK

Re: CoCo2 26-3134A with 230V~ ???

Post by sorchard »

jedie wrote:Have you seen the "Service Manual" here: http://www.colorcomputerarchive.com/coc ... ndy%29.pdf ?
I did see that one thanks. Unfortunately it doesn't have any information on PAL Cocos.
Stew
jedie
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Joined: Wed Aug 14, 2013 12:23 pm
Location: germany
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Re: CoCo2 26-3134A with 230V~ ???

Post by jedie »

I ordered 10 Diods and a rectifier...
... too many ideas and too little time ... Related stuff written in Python:
Dragon 32 emulator / PyDC - Python Dragon 32 converter: https://github.com/jedie/DragonPy
DWLOAD server / Dragon-Lib and other stuff: https://github.com/6809
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tormod
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Re: CoCo2 26-3134A with 230V~ ???

Post by tormod »

jedie, did you try out with more diodes to see what is the minimal voltage? I am thinking of using an external single-ended DC supply and to add a little voltage inverter for the negative supply to the SALT chip. The manual says the negative voltage is only used for the serial port, but when experimenting with a friend's CoCo2 it seems it was also needed for the tape input (level crossing detection).
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