Motorola ASTRO XTS 5000 Detailed Service Manual page 117

5-26
VOCON TX Audio (for kit NNTN5567)—Page 1
Radio has no
Transmitter
Deviation
(VOCON
Evaluation)
Inspect internal
and external
microphone
contacts
Connection
OK?
Yes
Connect an
RLN4460 test box
(or equivalent) to
the radio side
connector via a
programming
cable
Inject a 225 mV
rms 1.0 kHz tone
into the test box
Audio In port
Is FM
deviation
approximately
3.0 kHz?
No
November 16, 2006
Repair
connections or
No
replace flex
connector
Yes
No VOCON
problem found.
Troubleshooting Charts: VCO TX/RX Unlock
Check voltage on
C554 and C555
No
Voltage > 7.0
mV rms?
Yes
Yes
1
Replace C554
and/or C555
Voltage > 7.0
mV?
No
Replace L207
and/or L208
6881094C31-E