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Author Topic: broken A1200 :/  (Read 1915 times)

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Offline orangeTopic starter

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broken A1200 :/
« on: July 01, 2008, 12:28:04 PM »
I got a dead A1200 motherboard, here is what shows up on screen after turning on:




and here's video (31Mb)

it seems that blue screen flashes for a moment, and a green one on power-off.
is there any chance of fixing it?
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Better sorry than worry.
 

Offline darksun9210

Re: broken A1200 :/
« Reply #1 on: July 01, 2008, 05:18:39 PM »
just a bare A1200? no expansions? no hard disks?
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A500, A600, A1200x3, A2000, A3000, A4000 & a CD32.
and probably just like the rest of you, crates full of related "treasure" for the above XD
 

Offline Bazzaq

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Re: broken A1200 :/
« Reply #2 on: July 01, 2008, 05:33:09 PM »
Is that through the monitor connector? have you tried the modulator/composite out?
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Offline orangeTopic starter

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Re: broken A1200 :/
« Reply #3 on: July 02, 2008, 07:26:07 AM »
It's just a bare motherboard, connected with good RGB cable. I removed the RF modulator because it looked broken.
One of previous owners tried 'keyboard hack'; he tried soldering wires to keyboard controller but it was a messy job and probably something was shorted. Also the ROM chips were blown (literally!) but I've replaced them.

Since blue and green screen flash occasionally, custom chips or Chip RAM are suspects?
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Offline Ideal

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Re: broken A1200 :/
« Reply #4 on: July 07, 2008, 01:46:29 PM »
Probably the chip ram is dead.
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Offline countzero

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Re: broken A1200 :/
« Reply #5 on: July 07, 2008, 03:15:22 PM »
blue screen means pretty much anything could be dead. I'ld suggest not wasting your time on this board.
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Offline tokyoracer

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Re: broken A1200 :/
« Reply #6 on: July 07, 2008, 05:56:09 PM »
@ countzero. Just like another sort of computer I know of. :lol:  :lol:
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