Motorola APX 1000 - Volume Set Error (APX 2000; APX 4000 (Two Knobs))

5-24 Troubleshooting Charts: Volume Set Error (APX 2000/ APX 4000 (Two Knobs))
5.7 Volume Set Error (APX 2000/ APX 4000 (Two Knobs))
Volume Set Error
Voltage Level
correct and varies?
Verify all connectors from J2302
to frontkit flex are good.
Check Volume Switch
circuitry
No
Verify operation of volume
control by using Button Test flowchart.
Use a voltmeter to measure voltage at
R2202 while adjusting the volume control
from min to max. Max measured voltage
should be ~2.775V.
Yes