MOTOROLA CONFIDENTIAL - PROPRIETARY
6881036B20
November 20, 2000
27
Level 3 Service Manual
Troubleshooting
Troubleshooting Charts
After initial fault isolation, this section provides component level troubleshooting
flowcharts for fault isolation to discrete or integrated components.
Table 8. Flowchart Summary
Fault
Figure
Page
General Test Sequence
Device Will Not Receive GSM Signals
Device Will Not Receive DCS/PCS Signals
No Receiver Control Matrix
No Receiver VCO
Device Will Not Transmit
Low Transmitter Power
No Transmitter Control Matrix
PIN Diode Band Select
Receiver VCO Band Select
Device Will Not Power Up
No Ring Tone
No Audio
Headset Microphone Not Functioning
No Display
Real Time Clock Not Functioning
Check Card
No Power Up Using Battery
Device Draws Current When Powered Off
Frequency Error
No Charger
Keypad Not Functioning
Voice Recognition/Annotation Not Functioning
VibraCall
®
Not Functioning
Summary of Contents for 38C V100
Page 1: ...Level 3 Service Manual Model V100 GSM Technology Product Family 38C Personal Communicator ...
Page 2: ......
Page 73: ...V100 BOARD LAYOUT PAGE 1 2 ...
Page 74: ...V100 BOARD LAYOUT PAGE 2 2 ...
Page 77: ...V100 CONNECTOR SCHEMATICS ...
Page 78: ...V100 DISPLAY SCHEMATICS ...
Page 79: ...V100 FM SCHEMATICS ...
Page 81: ......
Page 83: ......