Motorola APX 2000 Detailed Service Manual

5-18 Troubleshooting Charts: DC Supply Failure
DC Supply 1.85 Volt Failure
Yes
No
Yes
Voltage 3.6V?
Verify BGAP_COMP
is present.
2.2 < V < 2.7?
Check BGAP_COMP
circuitry
Check if U6101,
U6405, U6301 and
U6304 is draining
high current
Check for damage
to Q6507
Check for connector
damages from J2301 to
frontkit flex
Check if keypad is
draining high
current.
Verify V_SW_3.60 is
present at R6510
Replace main board
Refer troubleshooting guide
5.4.2 DC supply 3.6V
V_EXT_1.85
No
Check U6508
circuitry
Check BGAP_COMP
circuitry
Check if U6302 is
drawing high
current thru E6501

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)