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6816985H01-B
August 16, 2007
900 MHz Troubleshooting Charts:
Radio Power-Up Fail Troubleshooting Chart (3 of 3)
6.5-5
6.5.6 Radio Power-Up Fail Troubleshooting Chart (3 of 3)
Yes
Problem
Solved?
Follow DC
Supply Failure
Flowchart
MAEPF-27333-O
End
No
Yes
Yes
Yes
No
No
No
2
Components
OK?
Replace
Problem
Component
Check for
32.768kHz
signal on
R747
Signal
Present?
Replace U712
and Retest
Signal
Present?
Problem
Solved?
End
Follow DC
Supply Failure
Flowchart
No
Check For
32.768kHz
signal on
R745
Signal
Present?
Replace
U713
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: ......