Troubleshooting Charts - Motorola 38C V100 Service Manual

Level 3 Service Manual

Troubleshooting Charts

6881036B20
After initial fault isolation, this section provides component level troubleshooting
flowcharts for fault isolation to discrete or integrated components.
Table 8. Flowchart Summary
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
MOTOROLA CONFIDENTIAL - PROPRIETARY
November 20, 2000
Fault
Troubleshooting
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