Mitsubishi MSZ-GA60VA Service Manual download pdf (Page 40)

Electromagnetic noise enters into TV sets or radios

Replace the antennas.

Replace the coaxial cable.

Yes

Is the distance between the

antennas and the indoor

unit within 3m, or is the

distance between the

antennas and the outdoor

unit within 3m?

Is the distance between the

TV sets or radios and the

indoor unit within 1m, or is

the distance between the TV

sets or radios and the

outdoor unit within 3m?

Is there any antennas damage

by rust or something , coaxial

cable damage, or poor

contact such as loosing of

the connectors or wire

disconnection of wiring of the

antennas?

Is the indoor/outdoor

connecting wire of the air

conditioner and the wiring of

the antennas in close?

Even if all of the above conditions is fulfilled, the electromagnetic noise may enter, depending on

the electric field strength or the installation condition (combination of specific conditions such as

antennas or wiring).

Check the followings before asking for service.

1.Devices affected by the electromagnetic noise

TV sets, radios (FM/AM broadcast, shortwave)

2.Channel, frequency, broadcast station affected by the electromagnetic noise

3.Channel, frequency, broadcast station unaffected by the electromagnetic noise

4.Layout of ;

indoor/outdoor unit of the air conditioner, indoor/outdoor wiring, grounding wire, antennas, wiring

from antennas, receiver

5.Electric field intensity of the broadcast station affected by the electromagnetic noise

6.Presence or absence of amplifier such as booster

7.Operation condition of air conditioner when the electromagnetic noise enters in.

1)Turn OFF the power supply once, and then turn ON the power supply. In this situation check for

the electromagnetic noise.

2)Within 3 minutes after turning ON the power supply, press OPERATE/STOP (ON/OFF) button

on the remote controller for power-on, and check for the electromagnetic noise.

3)After a short time (3 minutes later after turning ON), the outdoor unit starts running. During

operation, check for the electromagnetic noise.

4)Press OPERATE/STOP (ON/OFF) button on the remote controller for power off, when the

outdoor unit stops but the indoor/outdoor communication still runs on. In this situation check for

the electromagnetic noise.

After checking the above, consult the service representative.

Is the unit earthed?

Earth the unit.

Extend the distance between

the antennas and the indoor

unit, or the antennas and the

outdoor unit.

Extend the distance between

the TV sets or radios and the

indoor unit, or the TV sets or

radios and the outdoor unit.

Extend the distance between

the indoor/outdoor connecting

wire of the air conditioner and

the wiring of the antennas.

OB389 --2qxp 05.1.26 18:15 Page 40

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Mitsubishi MSZ-GA60VA Service Manual Page 40

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