Ericsson 344A3072P8, Maintenance Manual, Page: 12 / 26

4. Remove assembly by lifting up, pulling assem-
bly out of the two tabs.
Reinstall:
5. Reinstall the AC power assembly into the bottom
assembly.
6. Install the two mounting screws (removed in step
3) to secure the assembly.
7. Reinstall the power supply and reassemble the
charger.
Fuse replacement
To replace the power supply fuses, F1 or F2, perform the
following steps:
1. Disassemble the charger (see Case disassembly
procedure).
2. Remove the Power Supply (see Power Supply
removal procedure).
3. Replace F1 with a 315 mA 250V UL/CSA fuse,
or replace F2 with a 600 mA 250V UL/CSA fuse.
4. Reinstall power supply and reassemble charger.
Rapid Charger
Case
Disassembly - Use the following procedures to disassem-
ble the Rapid Multi-unit Charger: (Refer to Illustrated
Parts Breakdown.)
1. Remove front cover assembly screw.
2. Remove eight cover screws (item 12-7). Gently
separate the cover assembly (item 10) from the
bottom assembly (item 11).
3. Lift the front of the cover assembly up and slide
the cover assembly toward the rear (approxi-
mately 1/2" to clear retaining tabs). Lift the cover
assembly out of the base assembly and turn
upside down to the right of the base.
4. All field replaceable parts are now accessible. To
remove and replace a subassembly, refer to the
applicable removal and replacement instruc-
tions.
Reassemble:
5. Install the cover assembly into the base unit by
first hooking the rear tabs and sliding the cover
forward.
6. Carefully lower the cover assembly onto the base
assembly.
7. Reinstall the nine cover screws.
Constant Current Regulator Board Assembly
To remove a Constant Current Regulator Board (item 2),
perform the following steps:
1. Disassemble the charger (see Case disassembly
procedure).
2. Disconnect the input power cable (CN101).
3. Disconnect the Control Board power cables
(CN102 and CN103).
4. Remove the two screws (item 12-2) securing the
board and remove the constant current regulator
board assembly power supply heat sink (item
1-1).
Reinstall:
5. Install constant current regulator board assembly
into the power supply heat sink.
6. Install two screws to secure the board (removed
in step 4).
7. Reconnect the Control Board power cables
(CN102 and CN103). (Note: These cables are
interchangeable.)
8. Reconnect the input power cable (CN101).
9. Reassemble charger and install battery sleeve.
Control Board
To remove a Control Board (item 3), perform the follow-
ing steps:
1. Disassemble the charger (see Case disassembly
procedure).
2. Disconnect the input power cable (CN101).
3. Disconnect the sleeve interconnect cable
(CN102).
LBI-38708
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