November 16, 2006
6881094C31-E
5-24
Troubleshooting Charts:
VCO TX/RX Unlock
VOCON TX Audio—Page 1
MAEPF-27396-O
Inject a 200 mV
rms 1.0 kHz tone
to the test box
Audio In port
Repair connections
and/or replace flex
and microphone
Connections
OK?
Problem
with Mic path
components?
No Problem
found.
End
Replace
appropriate
component
Is FM
deviation approx.
3.0 kHz?
Connect an
RLN4460A audio
test box (or equivalent)
to the radio side
connector
Radio has no
Transmitter Deviation
(VOCON Evaluation)
Inspect
Microphone and
Flex Connector
Yes
No
Yes
Yes
No
1
2
No
Probe Voltage
at U509, pin 5
Verify Integrity
of Mic path up
to U509
Is
1 kHz Signal
present at approx.
14 mV rms?
No
Yes
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 ...