Motorola B89 Service Manual page 38

Disassembly
34
2. Using the pointed tweezer through the flip housing aperture, depress the hinge
mechanism to release the flip housing from the front housing knuckle. See
Figure 25A.
3. Carefully tilt and slightly separate the flip housing (Figure 25B), flex still
attached, from the front housing. Pull the flex through the front housing slot
then completely separate the housings as shown in Figure 25C.
4. To replace, insert the front housing hinge post into the flip housing while
carefully routing the flex through the slot in the front housing.
5. Using the disassembly tool, depress the hinge mechanism and slide the end of
the hinge into the corresponding slots molded into the front housing. The hinge
will snap into place when it is properly aligned with the front housing.
6. Replace the display board assembly, lens assembly, keypad, microphone
assembly, transceiver board assembly, rear housing, light guide, antenna,
SIM, and battery as described in the procedures.
May 15, 2001
Product Family B89
6881038B20