Chassis Assembly Disassembly; Keypad, Display, And Keypad/Passport Option Board Disassembly; Figure 3-5. Remove Main Board From Chassis - Motorola HT1250-LS+ Basic Service Manual

3-6

3.6.2 Chassis Assembly Disassembly

1. If disassembly of the chassis or the main board is required, then use a TORX® screwdriver with a
T6 head to remove the four screws holding the main board to the chassis.
Compliant
Ground
Contact
CAUTION: Refer to the CMOS CAUTION on page 3-2 before removing the main board. Be
!
sure to use ESD protection when handling circuit boards.
2. Lift the main board from the chassis (refer to Figure 3-5).
3. Remove the small O-ring retainers from their slots in the chassis. Note the alignment of the
retainers for reassembly.
4. Remove the O-ring.
5. If required in disassembly, slide off the ground contact from the top corner boss of the radio
chassis.

3.6.3 Keypad, Display, and Keypad/PassPort Option Board Disassembly

1. If the disassembly of the keypad or the keypad/PassPort option board, is required, lift the
microphone flex circuit up, and carefully remove the microphone and its boot from the front cover
pocket. See Figure 3-6, on page 3-7).
2. Lay this flex circuit to one side.
3. To remove the keypad retainer shield:
a. Insert the tip of a "penknife size," flat blade screwdriver in the opening at the end of the
keypad retainer arm tab.
O-Ring
Retaining
Features

Figure 3-5. Remove Main Board from Chassis

Screws (4)
Main
Board
Radio
Chassis
Maintenance