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August 16, 2007
6816985H01-B
6.4-4
700/800 MHz Troubleshooting Charts:
Radio Power-Up Fail Troubleshooting Chart (2 of 3)
6.4.5 Radio Power-Up Fail Troubleshooting Chart (2 of 3)
Refer Board to
Service Depot for
Reflash, Patriot,
SRAM, and
FLASH Analysis
Investigate
16.8 MHz
Reference
Oscillator
No
No
Yes
Yes
Probe
1
16.8MHz
Signal at
C243
Signal
About
1Vp-p?
Check
16.8MHz
Signal at C293
Signal
About
1Vp-p?
Investigate Clock
Buffer
Components and
Isolate Problem
Summary of Contents for ASTRO MT 1500
Page 4: ...iv Table of Contents August 16 2007 6816985H01 B Notes ...
Page 164: ...August 16 2007 6816985H01 B 5 6 Troubleshooting Procedures Operational Error Codes Notes ...
Page 188: ...August 16 2007 6816985H01 B 6 1 24 VHF Troubleshooting Charts Secure Hardware Failure Notes ...
Page 212: ...August 16 2007 6816985H01 B 6 2 24 UHF1 Troubleshooting Charts Secure Hardware Failure Notes ...
Page 236: ...August 16 2007 6816985H01 B 6 3 24 UHF2 Troubleshooting Charts Secure Hardware Failure Notes ...
Page 710: ...9 2 40 UHF1 Schematics Board Overlays and Parts Lists August 16 2007 6816985H01 B Notes ...
Page 806: ...9 5 32 900MHz Schematics Board Overlays and Parts Lists August 16 2007 6816985H01 B Notes ...
Page 816: ...Index 4 August 16 2007 6816985H01 B Notes ...
Page 817: ......