6.4-4
6.4.5 Radio Power-Up Fail Troubleshooting Chart (2 of 3)
August 16, 2007
700/800 MHz Troubleshooting Charts: Radio Power-Up Fail Troubleshooting Chart (2 of 3)
1
Probe
16.8MHz
Signal at
C243
Signal
About
1Vp-p?
Y es
Check
16.8MHz
Signal at C293
Signal
About
1Vp-p?
Y es
Refer Board to
Service Depot for
Reflash, Patriot,
SRAM, and
FLASH Analysis
Investigate
No
16.8 MHz
Reference
Oscillator
Investigate Clock
No
Buffer
Components and
Isolate Problem
6816985H01-B