CONTENTS MTH800 TETRA Handportable Terminal / Basic Service Manual xv
Disassembling and Reassembling the MTH800 Unit..................................................................................... 6-4
Protecting Static-Sensitive Devices.......................................................................................................... 6-4
To create a proper ground .................................................................................................................. 6-5
To store or transport a circuit board.................................................................................................... 6-5
Removing and Installing the Antenna ...................................................................................................... 6-5
To remove the antenna from the unit.................................................................................................. 6-5
To install the antenna in the unit......................................................................................................... 6-6
Removing and Installing Battery Door and Battery .................................................................................. 6-6
To remove the battery door from the unit ........................................................................................... 6-6
To remove the battery......................................................................................................................... 6-6
To install the battery............................................................................................................................ 6-7
To install the battery door ................................................................................................................... 6-7
Removing and Installing the Audio Assembly Cap................................................................................... 6-8
To remove the audio assembly cap from the unit............................................................................... 6-8
To install the audio assembly cap onto the unit.................................................................................. 6-8
Removing and Installing the Back Housing.............................................................................................. 6-9
To remove the back housing from the unit ......................................................................................... 6-9
To install the back housing ................................................................................................................6-11
Removing and Installing the Vibrator ......................................................................................................6-11
To remove the vibrator.......................................................................................................................6-11
To install the vibrator..........................................................................................................................6-11
Removing and Installing the Main Board.................................................................................................6-11
To remove the main board from the unit............................................................................................6-11
To install the main board................................................................................................................... 6-12
Removing and installing the UCM Board ............................................................................................... 6-14
To remove the UCM board from the main board .............................................................................. 6-14
To install the UCM board on the main board .................................................................................... 6-15
Removing and installing the Display ...................................................................................................... 6-15
To remove the display from the unit ................................................................................................. 6-15
To install the display ......................................................................................................................... 6-17
Removing and Installing the Display Board............................................................................................ 6-17
To remove the display board from the unit .......................................................................................6-17
To install the display board ............................................................................................................... 6-18
Removing and Installing the Accessory Connector Assembly ............................................................... 6-18
To remove the accessory connector................................................................................................. 6-19
To install the accessory connector.................................................................................................... 6-19
Removing and Installing the Keypad...................................................................................................... 6-20
To remove the keypad ...................................................................................................................... 6-20
To install the keypad......................................................................................................................... 6-21
Removing and Installing the Rotary Switch......................................................................................
...... 6-21
To remove the rotary switch.............................................................................................................. 6-21
To install the rotary switch ................................................................................................................ 6-21
Removing and Installing the Microphones ............................................................................................. 6-22
To remove the top microphone from the unit.................................................................................... 6-22
To install the top microphone............................................................................................................ 6-22
To remove the bottom microphone from the unit.............................................................................. 6-22
To install the bottom microphone...................................................................................................... 6-23
Removing and Installing the Earpiece.................................................................................................... 6-23
To remove the earpiece from the unit............................................................................................... 6-23
To install the earpiece....................................................................................................................... 6-23
MTH800 Unit - Exploded View..................................................................................................................... 6-24
MTH800 Components List................................................................................................................ 6-24
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