amiga 2000 power supply unit

[EdKing]

The main difference between the A2000 power supply and a PC power supply is the Tick signal. The Tick signal is used for timing, and is basicly a 60hz (USA/NTSC) reference signal derived from the 120v AC from your wall socket. There is a jumper on the 2000 motherboard that allows you to get this timing signal from the video circuit.

Taken from The Big Book of Amiga Hardware webpage

J200
    This jumper determines the time base used for the 50/60Hz CIA timer chip. In the normal posistion, the 50/60 TICK clock, based on AC line frequency, is used as a time base. In the alternate position, the verticle sync pulse from the video section is used. The system will not operate properly without one of these clocks.

I have never tried this, so I can't verify if it would work.

Some options to think about are putting some of your devices in an external box, or getting splitters which turn a single 3.5 connector into 2 or more 3.5 connectors. These are available at most larger computer stores.

I hope this helps,

Ed King

[EdKing]

X-ray wrote:
@ Ed

(A dumb question maybe) On the subject of PSUs, can I take out my A4000T PSU and simply cut the mobo connectors off and solder those onto a PC PSU? How would you go about replacing an A4000T PSU with an uprated PC one?

Sorry, I really can't answer that, my Amiga experience is limited to the A500 and the A2000. The Big Book of Amiga Hardware web page lists the pinouts for all models execpt the A4000.

Sorry,
Ed King