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5-20
Troubleshooting Charts: VOCON RX Audio
VOCON RX Audio–Page 2
1
Check Audio PA output
signal at VR1201
pins 1 & 4 (differential)
Check DC level,
V at R1328.
If V=7.50 +/- 1V,
No
Signal
then replace U1304.
Present?
Otherwise, verify R1328.
Yes
Yes
Distortion
>3%?
No
Check connector J2.
If no problems were found
on connector J2, check
UCM-CE-Audiojack flex.
May 28, 2008
6871620L01-C
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Table of Contents
Troubleshooting
