DH Instruments POWER SUPPLY KIT Installation Instructions

REPLACEMENT POWER
P/N 401903, INCLUDES
QTY PART NO DESCRIPTION
1 102705 Power Supply, +5V, +12V
1 102704 Plastic Standoff, Locking
1 102722-Z Screw, Nylon, M3 x 12
2 102721-Z Washer, Nylon, M3
This is a replacement power supply kit for RPM3 or
molbox RFM. It is important to follow the installation
instructions and to use the nylon mounting hardware
provided in this kit at the specified location, otherwise
the power supply could short out.
REMOVING THE POWER SUPPLY:
Disconnect power cord.
Remove enclosure cover from unit (disconnect fan
cable prior to completely removing cover).
Remove chassis from enclosure base (lift straight out).
Detach AC cable and DC cable from power supply.
The power supply is mounted in three (3) places with
a stainless steel screw, a nylon screw and a locking
plastic standoff (see Figures 1 and 2).
Figure 1 Top View
1. Stainless Steel Screw
2. Nylon Screw
SUPPLY KIT,
3. Plastic Standoff
4. Front of Unit
REPLACEMENT
POWER SUPPLY KIT
for RPM3 or molbox RFM
Installation Instructions
Figure 2 Right Side View
1. Plastic Standoff
Remove the stainless
lockwasher, and retain them for use in mounting
the new power supply.
Remove and discard the nylon screw.
Turn the chassis on its side to access the bottom
of the main PCB.
Locate the tabs of the plastic standoff and
squeeze them together to release the standoff
from the main board.
now be removed.
It is not necessary to remove the plastic
standoff from the old power supply, a new
s included in this kit
standoff i
Remove and discard
located between the metal mounting tabs and
the power supply.
steel screw and
The power supply can
the nylon washers