Radio Assembly - Detailed; Chassis Assembly/Reassembly; Ptt-Assembly - Motorola CP040 Basic Service Manual

Radio Assembly — Detailed
7.0 Radio Assembly — Detailed
7.1

Chassis Assembly/Reassembly

1. Replace the battery contact seal (if necessary) surrounding the battery contact.
2. Remove the old Interface Pad from the chassis by scraping off the pad and adhesive with a
straight razor. Use rubbing alcohol and a cloth to completely remove the adhesive from the
chassis surface. With the chassis clean and dry, add a new Interface Pad to the chassis.
3. Place the main circuit board straight down on top of the chassis.
NOTE: Be sure the battery contact seal protrudes through the chassis and is not pinched under the
chassis.
4. Use the T6 Torx screwdriver to fasten the screws holding the main board to the chassis. Tighten
to 0.34Nm (3 in/lb).
5. Replace the O-ring by positioning it in the top groove by the volume/frequency switches. Stretch
the O-ring to place it into the retaining groove at the bottom end of the chassis.
6. Replace the audio jack shroud.
7. Replace the microphone boot assembly.
7.2 PTT Assembly
1. Place the PTT seal over the ridge around the top hole. Press down to seat the seal around the
ridge.
2. Place the bottom tab in the slot inside the front housing PTT opening. Slightly slide down the PTT
and bow it by placing one finger under the middle of the PTT, so that the top tab can be aligned
and inserted into the top slot (Figure 2-8a).
3. Press the PTT assembly against the front cover opening (Figure 2-8b).
a. Place bottom tab into bottom slot.
Place top tab into top slot.
b. Push down on ribs toward bottom
of radio so hooks do not get crushed.
Figure 2-8 PTT Assembly
2-9