November 16, 2006
6881094C31-E
5-30
Troubleshooting Charts:
VOCON RX Audio (for kit NNTN5567)
VOCON RX Audio—Page 2
MAEPF-27395-O
Make sure that you look at
all solder contacts. Check
resistors and capacitors
associated with this check. If
all look fine, then replace U502.
Make sure that you look at
all solder contacts. Check
resistors and capacitors
associated with this check. If
all look fine, then replace U503.
Signal
Present?
Check Preamp
Output Signal
at C530
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
1
Preamp Gain
= 2.8 V/V?
PA Gain
= 11.2 V/V?
Distortion
>3%?
Check Preamp
U502 and its
associated
components
Check Flex
Connector
Distortion
>3%?
Check Audio PA
U503 and its
Components
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 ...