Motorola APX 2000 Detailed Service Manual

Troubleshooting Charts: RX Audio Error 5-27
Internal Audio
No audio out of
Main Speaker
Verify Audio signal
present at Main
speaker
Check audio signal
at TP6405 and
TP6406
Verify Audio signal
present at C6430
and C6431
Check Audio Codec
U6405
Is signal
present?
Is data
present?
Is data
present?
Verify all connectors
from J2302 to
frontkit flex is good.
Check continuity.
Verify V_SW_5 is present.
If yes, check U6411
circuitry. Replace U6411 if
all is good.
Replace Main
speaker
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)