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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: r6stu on November 05, 2005, 11:47:45 AM
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My A1200 as lost all sound and I am unable to load from floppy.
If I stick a disc in the floppy drive the light comes on and dfo:???? comes on WB and thats it. If I take the disc out the light stays on!
It was working one day and not the next.
I do have a spare 1200 mobo if needed, however the PCMCIA slot as a few broken pins.
Is it an easy task to unsolder the PCMCIA slot and stick a new one in?
My A1200 is my pride an joy and is in new condition!! :(
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It could well be that its your PSU at fault.... the sound and floppy both need -12v.
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Sounds more like Paula is b0rked, as "Paula performs two main functions in the Amiga. Primarily it provides the Amiga's native audio which is 4 channel 8 bit sound, but it also functions as the floppy drive controller." -The Big Book of Amiga Hardware
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OH well! Looks like a mobo is needed then as they are surface mounted chips.
How about unsoldering the pcmcia slot and replacing?
Stevo wrote:
Sounds more like Paula is b0rked, as "Paula performs two main functions in the Amiga. Primarily it provides the Amiga's native audio which is 4 channel 8 bit sound, but it also functions as the floppy drive controller." -The Big Book of Amiga Hardware
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Sorted it!
It seems to be the power supply!
It is one of the goliath PSU's. Is it simple enough to take it apart and stick a new PC supply in there??
Or what could be going on for that to happen?
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You could always get an old PC AT power supply (Don`t know if it will work with an ATX supply though) and rewire the a1200 power connector to the AT power supply. Thats what i did when my power supply didn`t have enough nuts to power an external cdrom and an apollo 040 25mhz accelerator and died.
Trooper
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No-one has mentioned that this also sounds like a dead floppy drive (except for the sound thing). Instead of swapping mobos, or getting bogged down in PSU issues, try swapping floppy drives first.
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I think Ryu's right - sounds like the motherboard isn't getting -12v. I hade the same symptoms with an Eyetech tower I had years ago but one of their tech support guys helped me fix it.
-12v is the middle pin on the square PSU connector - maybe the pin has been pushed back inside the connector and isn't making contact when you plug it in.
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Thanks guys I will take a look at the wires. However now the CD rom dosent work.
It says CD0 as been mounted but no icon appears and I cant list it from DOPUS??
I have tried 2 adapters and two zappos neither work!
(I have now got 3.1 roms and OS3.1)
I dont know if thats to do with all my mods and a std psu but the cdrom as an external psu, so surley that shoukdnt matter!
I have tried a network card and that lights up, the cd ejects (It dosent unless connected to the miggy!) and all pins are ok!!
Its all happerning at once!!