Motorola ASTRO XTS 5000 - Page 117

November 16, 2006 6881094C31-E
5-26 Troubleshooting Charts: VCO TX/RX Unlock
VOCON TX Audio (for kit NNTN5567)—Page 1
Inspect internal
and external
microphone
contacts
Radio has no
Transmitter
Deviation
(VOCON
Evaluation)
No
Connection
OK?
Yes
Repair
connections or
replace flex
connector
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 VOCON
problem found.
Yes
No
Voltage > 7.0
mV rms?
Replace C554
and/or
C555
No
Voltage > 7.0
mV?
1
Yes
No
Replace L207
and/or L208
Yes
Check voltage on
C554 and C555