Motorola APX 2000 Detailed Service Manual

5-10 Troubleshooting Charts: Power-Up Failure
Power-Up Failure – Low V_SW_1.4 Voltage
Low V_SW_1.4 Voltage
Measure Radio
Current
Measure SW_B+
Voltage at C6593
Measure Voltage
at C6586
Inspect U6507 and
Supporting
Circuitry
Is Standby Current
more than 15mA
above Average
1.45 < V < 1.65?
6 < V < 9?
Proceed to
Incorrect B+
Voltage
Proceed to Low
LD03 V_1.5V
Voltage Flow
Chart
Board has a short,
Replace Board
Yes
Yes
Yes
No
No
No
Are Parts Solder
Connections and
Placement Correct
Replace or Repair
Parts
Yes
No
Replace Main
Board

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)