Do you have a question? Post it now! No Registration Necessary. Now with pictures!
- Posted on
- NEC PowerMate power connector ?
October 1, 2007, 7:19 pm
rate this thread
I have to rerpair an old NEC PowerMate 286 wih broken power supply.
The ps is a TDK PU607.
I learned that there are 2 type of connectors on the market, an ATX 20
pin and an AT 6+6 pins.
Bur the NEC has a 9-pin and a 3- pin connector. No chance to get the
info from TDK nor NEC.
Colors from front to back:
br, br, bk then bk, bk, or, or, bk, bk, red, red,red (or=orange,
All reds and all sw are connected in the supply (< 0.3 Ohms), while
browns are not connected.
Reds are probably +5V and orange are + 12 because the are connected to
the 4 pin hard disk power connector.
Any hints where -5 and -12V is ?
Re: NEC PowerMate power connector ?
It could be that the -5 and -12 are not connected. If they are then the
place they would logically be used is in the RS-232 port circuitry and
it should be possible to trace that out fairly easily. My understanding
is that some designers generate the negative voltage on-board rather
than taking it from the PS since the current drain is so small.
BTW, Have you looked online for a replacement supply? I entered TDK
PU607 into Google and got some hits but I didn't follow up on them.
[Knoxville, TN, USA]
- » Newest MemTest86, MemTest86+ incompatible with Sandy, Ivy chipsets?
- — Next thread in » Computer Hardware