Motorola PR400 - Manual (Page 96)

August, 2004 6881096C24-A
8-10 Non-Keypad Model Disassembly and Re-assembly: Disassembling and Re-assembling the Radio — General
b. If you have the newer chassis (2786389Z02) use the newer O-ring (3286431Z05). Posi-
tion the O-ring with the plug on the right side (speaker connector side). Push the plug all
the way into the chassis slot until it is touching the chassis flange. Repeat for the left
side. Stretch the O-ring to place it into the retaining groove at the top and bottom end of
the chassis.
6. Check that the O-ring is not twisted and is being held by the top and bottom chassis groves.
7. Replace the audio jack shroud.
8.4.3.4 Chassis and Front Cover Re-assembly
1. Dress and connect the speaker wires.
a. Connect the speaker wire assembly into the 10-pin connector on the main board and
bend the wires at the board connector so the wires are positioned toward the top of the
radio (
Figure 8-13 ).
b. Connect the microphone wire assembly into the two hole socket on the main board and
bend the wires at the board connector so the wires are positioned toward the top of the
radio (
Figure 8-13 ).
c.
Slide the audio jack shroud onto accessory connector ( Figure 8-12 ).
2. Slide the volume potentiometer and frequency switch shafts into their respective holes in the front
cover. Look through the accessory connector opening to make certain that the wires are not
pinched.
Figure 8-12. Installation of Main Board onto Chassis
Note: Care should be taken when dressing the speaker and microphone wires to avoid pinching
them between the speaker magnet and shield, or between the accessory connector and
housing.
Note: Ensure that the plug orientation is correct with the exposed pins in the wire casing facing
upward and fully plugged in.
Main Board
Radio Chassis
Battery Contact Seal
Interface Pad
Frequency &
Volume Switches
Audio Jack Shroud
(Replace after Plugging
in Speaker and Mic)
O-ring