Motorola APX 6000 - Volume Set Error

5-24 Troubleshooting Charts: Volume Set Error
5.7 Volume Set Error
VOLUME SET
ERROR
Verify operation of
volume control by
using Button Test flowchart
Check DC on V_2.775D
(Pin 5 of J2101)
Check DC voltage on
C110 while adjusting the
Volume Control Knob
from min to max
Verify connections
and top flex connections
Volume control
OK?
Does the
voltage vary?
V = ~2.775V?
Replace
Controller Board
Refer to VoCon
RX Audio
Flowchart
Yes
No
No
2.7V < V < 2.9V
Proceed to DC
Flowchart
No
No
Check DC Voltage on
C2110 with Volume set
at Max
No
Yes
Yes