Motorola APX 2000 Detailed Service Manual

Troubleshooting Charts: Power-Up Failure 5-11
Power-Up Failure – Low V_2.23 Voltage
Low V_2.33 Voltage
Measure Radio
Current
Measure Voltage
at R6542
Inspect U6506 and
Supporting
Circuitry
Replace Board
Is Standby Current
more than 15mA
above Average
Are Parts Solder
Connections and
Placement Correct
3.3 < V < 3.9?
Proceed to Low
V_SW_3.6
Voltage Flow
Chart
Replace or Repair
Part/s
Board has a short,
Replace Board
Yes
Yes
Yes
No
No
No

Motorola APX 2000 Specifications

General

IP Rating	IP67
Operating Temperature	-30°C to +60°C
GPS	Optional
Bluetooth	No
Frequency Range	700/800 MHz
Power Output	1-5 W (VHF), 1-3 W (700/800 MHz)
Channels	Up to 1, 000
Battery Life	Up to 10 hours (digital)
Digital Protocol	APCO P25
Frequency	VHF: 136-174 MHz, UHF: 380-470 MHz, 700/800 MHz: 764-870 MHz
Power	1-3W (700/800 MHz), 1-5W (VHF)