6-8 Maintenance – CP185: Disassembling and Reassembling the Radio – General
7. Remove the Main Circuit Board from the Chassis.
8. Remove the seven small O-ring retainers from their slots in the Chassis. Note the alignment of
the retainers for reassembly.
9. Remove O-ring (20) and the Battery Contact Seal (24). (Refer Figure 6-9).
6.4.1.3 Front Circuit Board, Display Module and Keypad Disassembly
1. Push the latches on the Front Circuit Board (37) to release the Liquid Crystal Display (LCD)
flexible cable from the connector.
2. Remove the five screws holding the Front Circuit Board to the Front Housing with a Phillips
screwdriver.
3. Remove the Front Circuit Board from the Front Housing. (Refer Figure 6-10).
Refer to the CMOS CAUTION paragraph under Section 6.3 before removing the main board. Be
sure to use ESD protection when handling the circuit boards.
Figure 6-9. Main Circuit Board, O-ring and Battery Contact Seal Removal
Figure 6-10. Front Circuit Board Removal
O-Ring
Battery Contact Seal
Circuit Board
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