8.5 Fault finding
Symptom
Possible Cause
Remedy
Unit will not switch on
• Faulty connection to power
• Check power connection
• Fuse has blown
• Replace fuse and check
power supply current
• Supply voltage above limit
• Check supply voltage is
less than 15.6v
Scan or Memory Scan is
• Noise on the channel is
• Increase squelch level
locking on a channel
holding the scan
• Inhibit channel from scan
without a signal
(see section 2.11.1)
Dual Watch not being
• Priority channel selected
• Select a working channel
entered
• Handset off cradle
• Replace handset
Cannot change channel
• Dual Watch (D/W) engaged
• Exit Dual Watch
Certain channels are
• Some channels are restricted
• Consult your national
not obtainable
and not programmed depend-
authority for permitted
ing on country of purchase
channels in your region
Will not transmit
• Scanning or D/W function active
• Exit D/W or Scan
Will not transmit on 25W • Low voltage when full transmit-
• Check power supply
but OK on 1W
ting current is drawn
• Some channels are restricted to
• Consult your national
low power transmission only
authority
Transmissions persistently • Damaged antenna
• Replace antenna
weak/display flashes
• Antenna cable broken
• Replace cable
ANT
• Poor contact
• Check antenna sockets &
through deck connector
These simple checks should be carried out before seeking tech-
nical assistance and may save time and expense. Before con-
tacting your servicing agent please obtain the radio’s serial
number. The software iteration should also be quoted - this is
shown in the large digits on the display for 2 seconds after the
radio is turned on and should be written in the box below for
future reference.
Instruction Manual
73
Part No. E04297