Need a new power supply - Radio Shack Cinego D-1000 Multimedia Projector

Just make sure that the MAX OUTPUT that should be on a sticker with all the other information directly on your power supply is the minimum output that you require on your new purchase of an ATX power supply. Your options for replacement don't really rely on the brand of power supply, it's determined more by what your power consumption is - so a good rule is to at least get one as powerful as the one you're replacing. Also make sure that the new power supply has the appropriate power connections and the amount that you need, but the outlet in which you purchase your power supply will be more than happy to give you information about all the power supplies that they have for sale.

Your machine is a "Gigabit Ethernet" model PowerMac G4.
The power supply for this model is 661-2332 or equivalent. It has a 22-pin connector.

The easiest and safest way is to purchase a power supply tester. Just unplug the power supply wireing harness from the motherboard and plug it into the tester. It gives led readouts. Its around five dollars. or just simply take it to a computer shop, most will check that for free

the sound drivers need reinstalled.

power supply could be dead in which case buy a new power supply, unless the motherboard is dead.

Most new power supplies have a twenty pin Molex connector and a 4 pin Molex connector. If you look closely at the connectors you will see that they go together a certain way. It can be very hard to tell. Take a close look at the shapes of each terminal. Match them up exactly.

It's more than likely the motherboard needs replacement.

you don't a new power supply for that speaker because they all have in the package with the power supply adapter ..all have to do is to plug the adapter to ac power outlet your speaker is gonna be function...

power supplies are available many places on the internet, especially on ebay. Try this search on ebay: power +supply +ATX +400W. This is for a 400 watt supply which should be sufficient.