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Syn-Tech III P25 Portable Radio
OPERATION MANUAL
680-090-2040
Version 5.0eng
http://www.midlandradio.com
58
7 TROUBLESHOOTING
PROBLEM POSSIBLE
CAUSE(s)
SOLUTION(s)
Charger LED red
and rarely green.
Charging process is almost
finished
Leave the radio to complete
charging.
Charger LED
steady orange.
Communication error
between charger and the
battery
Replace the battery with a new
Midland replacement battery.
Charger LED
blinking red.
Battery temperature is too
high for fast charging
Charger starts fast charging
automatically when the battery
temperature falls.
Charger LED
alternately red and
green.
Radio is placed and
removed from the charger in
2-10sec.
This is a battery discharge
mode.
Charger LED
blinking orange
Faulty battery
Replace the battery with a new
Midland replacement battery.
No display on LCD
when radio is
turned on.
Battery is discharged,
improperly installed or
defective.
Charge battery.
or
Re-install battery.
or
Use another battery.
No sound from
Loudspeaker
Volume level is set too low,
squelch is set too high, or
radio is set for external
accessory.
Adjust volume level.
or
Adjust squelch level.
or
Turn off external acc.
or
Check speaker connections.
No response to key
press.
Key lock is on.
Unlock the keypad.
No answer to calls.
Out of range of other
stations or signal is blocked
by terrain.
Switch to
H
(High) power.
or
Move closer until you have a
“line-of-sight” to the other
station.
Radio to PC
connection fails.
Serial port is set for GPS
receiver.
Change serial port selection to
“DATA”.