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6881094C31-E
November 16, 2006
Troubleshooting Charts:
VCO TX/RX Unlock
5-27
VOCON TX Audio (for kit NNTN5567)—Page 2
1
Voltage = 5.0
V?
No
Data present?
No
Yes
Yes
Yes
Clock
present?
No
Yes
2
2
Synchronous
pulses
present?
No
Yes
Replace U401
Replace U501
Replace U501
Replace U501
Check signal on
R406
Check Mic_Bias
Line on U501 for
DC Voltage
Replace U501
Check signal on
R405
Check signal on
U408 pin 1 while
still applying
audio signal to
radio
Содержание ASTRO XTS-5000
Страница 7: ...vi Table of Contents November 16 2006 6881094C31 E Notes ...
Страница 11: ...x List of Figures November 16 2006 6881094C31 E Notes ...
Страница 17: ...November 16 2006 6881094C31 E xvi CommercialWarranty Notes ...
Страница 31: ...November 16 2006 6881094C31 E xxx Portable Radio Model Numbering System Notes ...
Страница 83: ...November 16 2006 6881094C31 E 3 44 Theory of Operation Encryption Module ...
Страница 135: ...November 16 2006 6881094C31 E 5 44 Troubleshooting Charts Secure Hardware Failure Notes ...
Страница 175: ...November 16 2006 6881094C31 E 7 32 Troubleshooting Tables List of Board and IC Signals Notes ...
Страница 355: ...8 180 Schematics Board Overlays and Parts Lists VOCON Boards November 16 2006 6881094C31 E Notes ...
Страница 367: ...November 16 2006 6881094C31 E Glossary 10 Notes ...
Страница 373: ...Index 6 November 16 2006 6881094C31 E Notes ...