November 16, 2006
6881094C31-E
5-16
Troubleshooting Charts:
Display Failure (NTN9564)
5.6
Display Failure (NTN9564)—Page 1
NOTE:
The NTN9564 VOCON board is compatible only with the 7285726C01 display module.
MAEPF-27404-O
End
Replace
LCD Display
Check integrity
of B102
1.8<V<1.95V?
No Display
Problem
Resolved?
No
No
Yes
Yes
Replace
B102
Verify VSW2
(1.85V) using
DC Supply Failure
flowchart
B102 OK?
No
Yes
Check DC on
J301, pin 17
1
Summary of Contents for ASTRO XTS-5000
Page 7: ...vi Table of Contents November 16 2006 6881094C31 E Notes ...
Page 11: ...x List of Figures November 16 2006 6881094C31 E Notes ...
Page 17: ...November 16 2006 6881094C31 E xvi CommercialWarranty Notes ...
Page 31: ...November 16 2006 6881094C31 E xxx Portable Radio Model Numbering System Notes ...
Page 83: ...November 16 2006 6881094C31 E 3 44 Theory of Operation Encryption Module ...
Page 135: ...November 16 2006 6881094C31 E 5 44 Troubleshooting Charts Secure Hardware Failure Notes ...
Page 175: ...November 16 2006 6881094C31 E 7 32 Troubleshooting Tables List of Board and IC Signals Notes ...
Page 367: ...November 16 2006 6881094C31 E Glossary 10 Notes ...
Page 373: ...Index 6 November 16 2006 6881094C31 E Notes ...