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INTRODUCTION
DANGER
ORDERING PARTS
REPAIR NOTES
This service manual describes the latest service information
for the
IC-F50/IC-F51 VHF TRANSCEIVER
at the time of
publication.
NEVER connect the transceiver to an AC outlet or to a DC
power supply that uses more than 8 V. Such a connection
could cause a fire or electric hazard.
DO NOT expose the transceiver to rain, snow or any liquids.
DO NOT reverse the polarities of the power supply when con-
necting the transceiver.
DO NOT apply an RF signal of more than 20 dBm (100mW)
to the antenna connector. This could damage the trans-
ceiver's front end.
Be sure to include the following four points when ordering
replacement parts:
1. 10-digit order numbers
2. Component part number and name
3. Equipment model name and unit name
4. Quantity required
<SAMPLE ORDER>
5030002630 LCD L3-0048TAY-2 IC-F50 Front unit 5 pieces
8810010120 Screw BO 2x8 SUS ZK IC-F50 Chassis 10 pieces
Addresses are provided on the inside back cover for your
convenience.
1. Make sure a problem is internal before disassembling the transceiver.
2. DO NOT open the transceiver until the transceiver is disconnected from its power source.
3. DO NOT force any of the variable components. Turn them slowly and smoothly.
4. DO NOT short any circuits or electronic parts. An insulated turning tool MUST be used for all adjustments.
5. DO NOT keep power ON for a long time when the transceiver is defective.
6. DO NOT transmit power into a signal generator or a sweep generator.
7. ALWAYS connect a 30 dB to 40 dB attenuator between the transceiver and a deviation meter or spectrum analyzer when
using such test equipment.
8. READ the instructions of test equipment thoroughly before connecting equipment to the transceiver.
To upgrade quality, all electrical or mechanical parts and
internal circuits are subject to change without notice or oblig-
ation.
MODEL VERSION SYMBOL
IC-F50
IC-F51
U.S.A
Europe
USA
GENGeneral
EUR