Vocon Rx Audio—Page 2 - Motorola ASTRO XTS 5000 Detailed Service Manual

Troubleshooting Charts: VOCON RX Audio—Page 2
6.20 VOCON RX Audio—Page 2
Check Preamp
Output Signal
at C530
Present?
Distortion
Preamp Gain
= 2.8 V/V?
PA Gain
= 11.2 V/V?
Distortion
Check Flex
Connector
68P81094C31-O
1
Check Preamp
No
Signal
Yes
Yes
>3%?
No
No
Yes
Check Audio PA
No
Yes
Yes
>3%?
No
Make sure that you look at
all solder contacts. Check
U502 and its
resistors and capacitors
associated
associated with this check. If
components
all look fine, then replace U502.
Make sure that you look at
all solder contacts. Check
resistors and capacitors
U503 and its
associated with this check. If
Components
all look fine, then replace U503.
MAEPF-27395-O
April 15, 2002
6-19