
August 16, 2007
6816985H01-B
6.4-6
700/800 MHz Troubleshooting Charts:
DC Supply Fail Troubleshooting Chart (1 of 3)
6.4.7 DC Supply Fail Troubleshooting Chart (1 of 3)
Voltage approx
1.55V?
Check Voltage
at L704
Voltage approx
2.9V?
Yes
Check Voltage
at L705
Voltage approx
5V?
Replace
VOCON
MAEPF-27334-O
No
No
No
No
Yes
Yes
Yes
Yes
Problem with DC
Supply
Distribution
Network
Check Voltage
at L703
Voltage Approx
1.875V?
Replace
U701
Check Voltage
at R718
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: ......