C128 and Amiga Power Supply

[Postal Patron]

I don't want to open up a box o' stuff in the top of the closet, but I want to plug in my C128. Can I use my Amiga 500 power supply to power it up safely? It has the same connector type.

 

[carlsson]

From what I understand: No. While they may physically may look the same, the pinout and power are much different:

 ____ ____
| 4  "  3 |
|    5    |
|__1___2__|

# C128        Amiga
1 +5VDC 2.5A  Shield (ground)
2 N/C         +5VDC
3 9VAC 1.0A   Ground
4 Ground      +12VDC
5 9VAC 1.0A   -12VDC

http://www.hardwarebook.net/connector/power/c128power.html
http://www.hardwarebook.net/connector/power/amiga500power.html
http://www.ianstedman.co.uk/Amiga/amiga_hacks/Amiga_Power_supplies/amiga_power_supplies.html

 

[Terry Yager]

Looks like pins 1-4 are pretty much neutralized (grounded). Pin #5 might cause some damage if you jacked-in the wrong PS, but probably not. (There's probably a diode or some kind of protection built into the circuit, but I wouldn't want to test the theory).

--T

 

[Thomas Hillebrandt]

This could be an urban legend, but I head about a guy who tried the opposite (Powering up an A500 with a C128 PSU) and got a nice bootup-screen (white back with blue disk and hand), but nothing more. The power was enough for that, but not for the diskdrive...

Hell, I dunno!