Motorola PR400 User Manual
Page 62
August, 2004
6881096C24-A
6-12
Full Keypad Model Disassembly and Re-assembly: Disassembling and Re-assembling the Radio — General
6.
Attach the flex cable into the connector on the keypad board, if not already connected.
7.
Bend the flex cable as shown (
6.4.2.4 Keyboard Retainer Re-assembly
1.
Insert the flex cable through the slot at the bottom of the keyboard retainer (
Figure 6-16
).
2.
Insert the two top tabs of the keyboard retainer into the two tab retainers located on each side of
the speaker in the front housing (
Figure 6-16
).
3.
Press the four keypad retainer locking tabs into the housing.
4.
Push the speaker and microphone wires into the top left hand corner of the housing.
6.4.2.5 Chassis Assembly/Re-assembly
1.
Replace the battery contact seal (if necessary) surrounding the battery contact (
Figure 6-17
).
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 chas-
sis 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 with the frequency and volume
switches facing down (
Figure 6-17
).
4.
Use the T6 Torx screwdriver to fasten the screws holding the main board to the chassis. Tighten
to 3.7 - 3.9 in/lb.
5.
Replacing the O-ring.
a.
If you have the older chassis (2786389Z01) use the older O-ring (3286431Z02). Position
the O-ring 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.
Figure 6-16. Keyboard Retainer Re-assembly
Note: Be sure the battery contact seal protrudes through the chassis and is not pinched under the
chassis.