Motorola APX Series - Care And Troubleshooting Guide Manual

Motorola APX Series Portable Radio Care and Troubleshooting
Radio Care
If the radio battery contact area has been submerged in water, dry and clean the radio battery contacts with a lint-
free cloth before attaching a battery to the radio. Otherwise, the water could short-circuit the radio.
If the radio has been submerged in water, shake the radio well so that any water that may be trapped inside the
speaker grille and microphone port can be removed. Otherwise, the water will decrease the audio quality of the
radio.
Do not disassemble the radio. This could damage radio seals and result in leak paths into the radio. Any radio
maintenance should be performed only by a qualified radio technician.
Handling
Do not pound, drop, or throw the radio unnecessarily. Never carry the radio by the antenna.
Avoid subjecting the radio to an excess of liquids.
Avoid subjecting the radio to corrosives, solvents or spirits.
Do not disassemble the radio.
Keep the accessory-connector cover in place until ready to use the connector. Replace the cover immediately
once the accessory has been disconnected.
Troubleshooting
Symptom
Possible Cause
Correction or Test
Radio Dead; Display Does Not
Turn On
1. Dead Battery
Replace with charged battery.
2. Blown Fuse
Send radio to the Radio Shop.
3. On/Off Switch
4. Regulators
Radio Will Not Turn Off
VOCON Board
Send radio to the Radio Shop.
Radio Dead; Display Turns Off
RF or VOCON Board
Send radio to the Radio Shop.
No Receive Audio or Receiver Does Not
Unmute
Programming
Send radio to the Radio Shop.
Audio Distorted or Not Loud Enough
Synthesizer Not On Frequency
Send radio to the Radio Shop.
RF Sensitivity Poor – Does not receive
radio traffic.
1. Synthesizer Not On Frequency
Send radio to the Radio Shop.
2. Antenna Switch/Connector
3. Receiver Front-End Tuning
No RF Power Out – Poor transmit range.
1. TX Power Level or Frequency
Send radio to the Radio Shop.
2. No Injection To Power Amplifier
3. Antenna Switch/Connector
No Modulation; Distorted Modulation
1. Programming
Send radio to the Radio Shop.
2. VOCON Board
Bad Microphone Sensitivity
1. Check Deviation and Compensation
Send radio to the Radio Shop.
2. Microphone
No/Low signaling (PL, DPL, MDC)
1. Programming
Send radio to the Radio Shop.
2. VOCON Board
No “KEYLOAD” on Radio Display When
Keyloading Cable is Attached to the Radio
Side Connector
1. Defective Keyloader Cable
Send radio to the Radio Shop.
2. Defective Radio
Keyloader Displays “FAIL.”
1. Wrong Keyloader Type
Use correct keyloader type. Refer to
Keyloader User Guide for more
information.
2. Bad Keyloader
Try another keyloader
3. Defective Radio
Send radio to the Radio Shop.