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6816985H01-B
August 16, 2007
900 MHz Troubleshooting Charts:
DC Supply Fail Troubleshooting Chart (2 of 3)
6.5-7
6.5.8 DC Supply Fail Troubleshooting Chart (2 of 3)
MAEPF-27333-O
Check C716,
L703, C865,
and CR801
Replace
Problem
Component
Components
OK?
Fixed?
End
Components
OK?
Replace
Problem
Component
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
4
5
4
No
Check
Voltage at
pin R711
Voltage =
3.6V +/-
5%
Check
C796, C713,
L701
Check
Voltage at
pin L703
Voltage =
1.875V +/-
5%
Voltage =
2.9V +/-
5%
Check
Voltage at
pin L704
ReFLASH
HOST C
Code
Replace
U701
MAKO IC
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: ......