Replacing The Plug-In Cards - Tait TB8100 Service Manual

15.3

Replacing the Plug-in Cards

TB8100 Service Manual
© Tait Electronics Limited September 2006
Important
You must reprogram the PMU if you fit a replacement
HVDC and microprocessor card, or change the configura-
tion of the PMU. Refer to
bration" on page
Important
The HVDC and microprocessor card normally fitted to a
DC PMU does not have the HVDC circuitry fitted. Do
not fit this type of card to a PMU with an AC mod-
ule or the AC module will be damaged. You can,
however, safely fit a card with the HVDC circuitry to any
model of PMU.
Important
The DC input voltage of a replacement standby power sup-
ply card must match the DC input voltage of the DC mod-
ule (i.e 12VDC, 24VDC or 48VDC nominal). Fitting a
card with the wrong input voltage may damage the DC
module.
Important
We strongly recommend that you use the TB8100 card
remover
blade screwdriver may reach too far through the slot and
damage the components or tracks on the card.
Refer to "Power Management Unit Disassembly and Reassembly" on
page 249 for details on removing and refitting the top and bottom covers
and rear panel. The circled numbers in the following instructions refer to
Figure 15.1.
1. The card remover is included in the TBA0ST2 tool kit, which is available
from your nearest Tait Dealer or Customer Service Organisation. It is also
available separately as part number 220-02034-01.
Power Management Unit Card and Board Replacement
"Reprogramming and Recali-
264.
1
, as shown in Figure 15.1 on page 263. A flat-
261