Help w, DECHUB 90 PSU pin-out
- From: "nnc@xxxxxxxxxxxxxxx" <nnc@xxxxxxxxxxxxxxx>
- Date: 17 Jul 2006 09:13:12 -0700
Help wanted;
Just about going off for summer vaccations, the PSU of a DECHUB 90 with
some 7 units plugged into the packplane also went off...
Can anyone help me with the pin-out of this 32-pin connector (1/2
C-style eurocard(?) connector)
16 pins (1-16) in row A and 16 Pins in row C
from +5.1V single supply, other require +5,1V and +12.1V. On the PCB ofFrom other articles, I find that some modules in this series operates
my PSU, I can (at the transformer) read about +5.1V, +12.1V and -12.1V
(besides 12 *tack, rot and rot)
In row A pins 1, 2, 3, 5, 7, 8, 9, 11, 12, 13, 14, 15, 16 connect
together. I guess they are U+
In row C pins 1, 2, 3, 4, 5, 7, 10, 11, 12, 13, 14, 15, 16 connect
together. I guess they are GND.
In both rows, pin 6 is Not Connected.
In row C, pins 8, 9 are together connected to frame (like in protective
ground)
In row A, pin 4 is connected to the negative side of an electrolytic
capacitor...
I've got a matching connector, I've got PSU with 5V and +/-12 V (strong
enough ++), I've got cables, soldering utilities and all that. I just
want to keep the HUB running for some weeks, in order to find a fine
PSU later, or to repair the old one without a hurry...
The PSU PCB is marked: digital TM, ELEC, E33308, 18092 (M) (C) 1990.
Besides, two spots on the PCB had a "hot night" sometime... Quite black
is it. Both spots are at resistors, one spot at R7 / R103, one at R28.
I guess the fan of this PSU might have clogged due to lots of
operational hours alone in one industrially located relay rack ;-)
All help greately appreciated.
.
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