CompuServe Thread

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10 messages in this thread
#107122From: donnellanJul 13, 1993 6:07 PM
Dear Hardaware, I would like to know if anyone out there has documented a switch from the original Amiga 2000 power supply to a PC-AT power supply. I want to replace my burnt out supply with a PC supply and am not quite sure about the TIC signal, which according to my manual can be bridged, and the strength of the relevant voltages on the PC supply. I have read the PC-XTP.lzh file in the libs here but I can't see how it can help me as the A500 has no TIC signal from the supply and the XT supply is largely different from the AT supply I have. Sean. p.s. I'm on my last Amiga. Can anyone help me? 🙂
#107168From: Dale LarsonJul 14, 1993 8:19 AM
I wouldn't even try. I think that there is a motherboard jumper for clock source that would let you use vblank rather than powersupply TIC for the clock. I'm not sure what else the A2000 uses TIC for, so you may really be SOL. Dale Larson – An Amiga Software Engineer with some time on his hands.
#107256From: BILL LEACHJul 15, 1993 7:21 AM
Dale; I'm not sure but I don't think that the line is used for anything else. It has been a long time since I looked at that and the manuals are packed up right now so I can't go look again. -bill
#107286From: donnellanJul 15, 1993 3:03 PM
Well as I _am_ going to try maybe you could tell me why I shouldn't. I reconed that the TIC vs. VBLANK would probably upset the counters a bit but who cares as the a2000 is a write off without a power supply. I could always pay 200.- DM for a new supply 🙁 But what's the point if the Amiga isn't even worth that much anymore? I could get an old a500 for that price. The thing is that I'd only be using the amiga as a sort of terminal and printer buffer. Maybe you understand why I don't really mind a little UNORTHODOX patch here or there. If it works it'll be better than now! Sean. p.s. I have multimeters etc… no problems with soldering either.
#107315From: Dale LarsonJul 16, 1993 6:51 AM
I only meant that it's something I'd prefer not to do to one of my machines. No rational reason. You, of course, are welcome to it 🙂 Dale Larson – An Amiga Software Engineer with some time on his hands.
#107363From: donnellanJul 16, 1993 9:48 PM
sorry for seem ing so sharp (i just re read my old message). I wanted to ask if you know if it's possible in theory to get the right amount of power out of a PC supply to run a blank 2000 on. Would I have to modify the PC supply to get the reult I want? Sean.
#107450From: Dale LarsonJul 17, 1993 4:21 PM
In theory, should be no problem. Other than TIC, and connectors, I can't think of anything at all different about the 2000 and any other power supply. 5 volt and 12 volt is real standard, and any 150+ watt supply should do. Dale Larson – An Amiga Software Engineer with some time on his hands.
#107478From: donnellanJul 18, 1993 12:00 AM
Thanks for the reply. Sean. p.s. I'll post a message as soon as I get the time to get it running. (or not :-))
#107271From: Wayne ColeJul 15, 1993 12:38 PM
Call Micro R&D at 800 527 8797 and get a nice 300 watt supply then load the box with all kinds 'o stuff! Might be easier and less chancey than adapting some salvaged ps. wmc – via Autopilot!
#107321From: donnellanJul 16, 1993 9:16 AM
hmmm… The problem isn't that I NEED a stronger or better supply than before, it's just that I always had the amiga running along as a sort of terminal which I could use when this computer (the one I'm using now) was doing something else like AP or Graphics processing. The terminal amiga then (one fine day) just puffed out a cloud of smoke and stopped working. So now I have an amiga without a supply and with 512K of ram and naught else (basicly worth nothing). If I can put the AT supply in I'll be happy… if I can't I'll buy an a1200 in 3 months (hmm I'll do that anyway I think). Ohh by the way I can't ring 800 numbers from Germany! The amiga I have now is loaded… ('040, SCSI, AT-BUS, 13MB, etc..) Sean.