Repair Introduction; Mechanical Repairs; Basic Modular Troubleshooting - Motorola P7689 Service Manual

Table of Contents

P7689 / P7789

6.1 Repair Introduction

The P7689 is divided into 3 main sections when it comes to part replacability: The housings which

contains the alert, speaker, mic, the main PCB which contains RF / Logic circuitry and the keypad

interface and finally the display module which connects to the main PCB via a elastomer connector. If

the RF / Logic board is required to be changed then a full service tranceiver should be ordered as there

is no replacement PCB available. Also a personality transfer would be necessary.

6.2

Assembly replacement level troubleshooting and repair of the P7689 is limited to isolation and

replacement of the main mechanical parts only (See Exploded parts diagram and associated parts list

p19 & p20)

6.3

The troubleshooting information in Table 2 shows some typical malfunction symptoms, and for the

corresponding verification and repair procedures refer to the disassembly instructions located in the

disassembly section of this manual. (Section 4).

NOTE

of 59

Defective Logic/RF assemblies must be replaced

with pre-tested, pre-phased assemblies

GSM Field Service Support

Table of Contents

P7789