6881094C31-E
November 16, 2006
Troubleshooting Charts:
Display Failure (NNTN4563, NNTN4819, NNTN4717 & NNTN5567 VOCON Kits)
5-13
5.5
Display Failure (NNTN4563, NNTN4819, NNTN4717 & NNTN5567
VOCON Kits)
Page 1
NOTE:
The NNTN4563 VOCON board is compatible only with the 7285726C02 display module,
and the NNTN4819 VOCON board is compatible only with the 7285726C03 display
module.
MAEPF-27505-B
End
Replace
LCD Display
Check integrity
of B101
2.775 V<V<3.1 V?
No Display
Problem
Resolved?
No
No
Yes
Yes
Replace
B101
Verify V2
using
DC Supply Failure
flowchart
B101 OK?
No
Yes
Check DC
on J301,
pins 17 and 18
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 ...