262 Power Management Unit Card and Board Replacement TB8100 Service Manual
© Tait Electronics Limited September 2006
Removal - Method 1
This procedure applies to the standby power supply and PFC control cards.
The procedure for removing the other cards is described in Method 2 below.
1. Remove the top cover.
2. Insert the card remover into the slot in the AC or DC converter board
b and push down c to lift the nearest plug out of its socket (refer to
Figure 15.1).
3. Repeat this procedure at the other end of the card.
4. When all plugs are free of their sockets, slide the card out from the
groove in the heatsink.
Removal - Method 2 This procedure applies to the DC control, battery control, and HVDC and
microprocessor cards.
1. Remove the top and bottom covers and front panel.
2. Insert the card remover between the card and the edge of the AC or
DC converter board
d and push down e to lift the nearest plug out
of its socket (refer to Figure 15.1).
3. Insert the card remover into the slot near the other end of the card
and push down to lift the plug out of its socket. On the longer
HVDC and microprocessor card, repeat this procedure for each slot
along the length of the card, working from the front to the rear of the
PMU.
4. When all plugs are free of their sockets, slide the card out from the
groove in the heatsink.
Refitting 1. Insert the top of the card into the groove in the heatsink f.
2. Align the plugs on the card with their matching sockets on the AC or
DC converter board.
3. Press the card down firmly at each end
g so that each plug fits
correctly into its matching socket. There should be an audible
“click” when each plug is fully inserted. On the longer HVDC and
microprocessor card, you may need to use both hands to press evenly
along its length.
4. Refit the front panel and covers as necessary.
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