Motorola SSETM 5000 - Manual (Page 123)

6881094C12-A November 11, 2004
Troubleshooting Charts: VOCON RX Audio 9-19
VOCON RX Audio—Page 2
MAEPF-27395-O
Make sure that you look at
all solder contacts. Check
resistors and capacitors
associated with this check. If
all look fine, then replace U502.
Make sure that you look at
all solder contacts. Check
resistors and capacitors
associated with this check. If
all look fine, then replace U503.
Signal
Present?
Check Preamp
Output Signal
at C530
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
1
Preamp Gain
= 2.8 V/V?
PA Gain
= 11.2 V/V?
Distortion
>3%?
Check Preamp
U502 and its
associated
components
Check Flex
Connector
Distortion
>3%?
Check Audio PA
U503 and its
Components