Motorola APX Series Care And Troubleshooting 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.

Symptom

Radio Dead; Display Does Not

Turn On

Radio Will Not Turn Off

Radio Dead; Display Turns Off

No Receive Audio or Receiver Does Not

Unmute

Audio Distorted or Not Loud Enough

RF Sensitivity Poor – Does not receive

radio traffic.

No RF Power Out – Poor transmit range.

No Modulation; Distorted Modulation

Bad Microphone Sensitivity

No/Low signaling (PL, DPL, MDC)

No "

" on Radio Display When

KEYLOAD

Keyloading Cable is Attached to the Radio

Side Connector

Keyloader Displays "

."

FAIL

Possible Cause

1. Dead Battery

2. Blown Fuse

3. On/Off Switch

4. Regulators

VOCON Board

RF or VOCON Board

Programming

Synthesizer Not On Frequency

1. Synthesizer Not On Frequency

2. Antenna Switch/Connector

3. Receiver Front-End Tuning

1. TX Power Level or Frequency

2. No Injection To Power Amplifier

3. Antenna Switch/Connector

1. Programming

2. VOCON Board

1. Check Deviation and Compensation

2. Microphone

1. Programming

2. VOCON Board

1. Defective Keyloader Cable

2. Defective Radio

1. Wrong Keyloader Type

2. Bad Keyloader

3. Defective Radio

Correction or Test

Replace with charged battery.

Send radio to the Radio Shop.

Send radio to the Radio Shop.

Send radio to the Radio Shop.

Send radio to the Radio Shop.

Send radio to the Radio Shop.

Send radio to the Radio Shop.

Send radio to the Radio Shop.

Send radio to the Radio Shop.

Send radio to the Radio Shop.

Send radio to the Radio Shop.

Send radio to the Radio Shop.

Use correct keyloader type. Refer to

Keyloader User Guide for more

information.

Try another keyloader

Send radio to the Radio Shop.