Back-Up Battery, Laf Circuit Board And Exl Circuit Board - Hitachi DZ-BD7HA Service Manual

Disassembly and Reassembly > Disassembly

(9) Back-up Battery, LAF Circuit Board and EXL Circuit Board

1) Use tweezers, etc. to remove the backup battery (a) in the direction of the arrow. Take care not to
damage the battery holder (b) on EXL circuit board (c) at this time.
2) Remove the LAF circuit board (d) in the direction of the arrow.
3) Remove the three connectors.
4) Remove the four screws [B], and then remove the EXL circuit board.
Caution during disassembly and reassembly:
Attach the backup battery making sure that the positive (+) terminal is visible.
(a) Backup battery
(b) Battery holder
(c) EXL circuit board
(d) LAF circuit board
(e) Connector of speaker
(f) L case unit
Fig. 5-3-9
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