Fuse Replacement; D Dc Power Cable Fuse Replacement; D Circuitry Fuse Replacement - Icom IC-i7410 Instruction Manual

13
MAINTENANCE

■ Fuse replacement

If a fuse blows, or the transceiver stops functioning,
find the source of the problem, and repair it. Then re-
place the damaged fuse with a new, adequately rated
fuse.
R WARNING! Turn OFF the power and disconnect
the DC power cable from the transceiver before per-
forming any work on the transceiver. Otherwise,
there is danger of electric shock, equipment dam-
age and/or fire injury,

D DC power cable fuse replacement

Refer to the figure illustrated to the right for the DC
power cable fuse replacement.

D Circuitry fuse replacement

Except for the power amplifier, the 13.8 V DC from the
DC power cable is applied to all units in the IC-7410,
through the circuitry fuse. This fuse is located in the
PA unit.
q Remove the top cover. (p. 94)
w Remove the 22 screws, then remove the PA shield-
ing plate as shown to the right.
e Remove the speaker cable from the connector on
the PA unit as shown to the right.
r Replace the circuitry fuse as shown in the diagram
to the right.
t Replace the speaker cable, PA shielding plate, top
cover and screws to their original position.
CAUTION: DO NOT pull the speaker cable when
removing the PA shielding plate, or DO NOT put the
speaker cable under the PA shielding plate when
replacing it. This could damage the transceiver.
99
The IC-7410 has two fuse types installed for trans-
ceiver protection.
• DC power cable fuses .............................. ATC 30 A
• Circuitry fuse .............................................. ATC 5 A
ATC 30 A fuse
PA shielding plate
Speaker cable
ATC 5 A fuse
Connector