Volume Set Error - Motorola APX 5000 Service Manual

5-24
5.7

Volume Set Error

VOLUME SET
ERROR
Verify operation of
volume control by
using Button Test flowchart
Volume control
OK?
No
Check DC on V_2.775D
(Pin 5 of J2101)
2.7V < V < 2.9V
No
Check DC Voltage on
C2110 with Volume set
at Max
V = ~2.775V?
Yes
Check DC voltage on
C110 while adjusting the
Volume Control Knob
from min to max
Does the
voltage vary?
Yes
Verify connections
and top flex connections
Troubleshooting Charts: Volume Set Error
Yes
Refer to VoCon
RX Audio
Flowchart
No
Proceed to DC
Flowchart
No
Replace
Controller Board
No