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August 16, 2007
6816985H01-B
6.5-14
900 MHz Troubleshooting Charts:
No Display Troubleshooting Chart (2 of 3)
6.5.15No Display Troubleshooting Chart (2 of 3)
MAEPF-27340-O
V = 1.85V?
Check P_S*
at R912 on
option board
No
Yes
Yes
No
No
Yes
Yes
No
No
No
No
No
Yes
Yes
Yes
Yes
1
V = 1.85V?
Problem
Resolved?
Problem
Resolved?
Problem
Resolved?
Problem
Resolved?
Check
REG_SEL
at J601, pin 7
Check RESET
at R647
Verify Signal
Path Integrity
and correct
Verify Signal
Path Integrity
and correct
Verify Signal
Path Integrity
and correct
Verify Signal
Path Integrity
and correct
Check CS at
R931 on
option board
3
V = 1.85V?
V = 1.85V?
End
End
End
End
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: ......