Motorola APX 2000 Detailed Service Manual

Troubleshooting Charts: DC Supply Failure 5-21
DC Supply 1.4 Volt Failure
Yes
Verify Q6501
Voltage
= 1.5V?
Yes
Voltage
1.8V?
Refer troubleshooting
guide 5.4.5
No
Verify UNSW_B+
at test point:
F_UNSW_B+
Yes
Voltage
2.775V?
No
Check if U6302
draining high
current thru E6502
V_SW_1.4
Voltage
1.8V?
Yes
No
No
Verify L200, C202
and C203 is good.
No
Replace fuse
Check external
circuitry for U6507.
If good, change
U6507.
Yes

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)