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Motorola ATS 3000 User Manual

Motorola ATS 3000
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6816985H01-F February 14, 2012
VHF Troubleshooting Charts: VOCON Receive Audio Troubleshooting Chart 6.1-17
6.1.18VOCON Receive Audio Troubleshooting Chart
Audio
present?
Check
distortion of
signal at R844
and/or R798
THD < 2 %
Replace
U701
Check
contacts at
J650
MAEPF-27347-O
Connections
OK?
Y
e
s
No
Y
es
Y
es
No
No
Bad SINAD
No
Recovered
Audio
Check speaker
integrity
Connections
OK?
No
1
1
Y
es
Replace
Speaker
Connect an RLN4460
test box (or equivalent)
to the radio side
connector via a
programming cable
Inject Standard
Input into antenna
connector
A standard input is an RF
signal at -47 dBm with a 1
kHz tone modulated at 3
kHz for a 25kHz channel
Check Rx SAP
port signal
integrity as per
Chapter 7
Replace
U800
Replace
U701

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Motorola ATS 3000 Specifications

General IconGeneral
BrandMotorola
ModelATS 3000
CategoryTwo-Way Radio
LanguageEnglish

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