16 Apr
2003
16 Apr
'03
10:08 a.m.
Hi,
Can someone please help me.
I have a Commodore 16 computer without Power Supply.
I understan it requires 9VDC source at 1A.
What is the polarity of the connector? Is plus (+) on the center pin
or on the sleeve?
THe service manual doesn't actually show the connector, it just numbers
the 2 connections '1' and '2'. However, it's clear from the schematic
that the +ve side goes to the power switch (a single pole device), so it
should be easy to check which this is with an ohmmeter. The -ve
connection goes to the systgem 0V rail, which should also be easy to
find. I _think_, from looking at the PCB overlay, that the centre is
-ve, but check this before blowing up the machine!
-tony