Troubleshooting, 24 english – Clarion DB179RGMP User Manual

Page 25

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24

English

DB178RMP / DB179RMP / DB179RGMP

7. TROUBLESHOOTING

Replace with a fuse of the same amperage.

If the fuse blows again, consult your store of

purchase.

Power does not turn on.

(No sound is produced)

No sound output when

operating the unit with

amplifiers or power

antenna attached.

Problem

Cause

Measure

Fuse is blown.

Incorrect wiring.
Power antenna lead is

shorted to ground or

excessive current is

required for remote-on

the amplifiers or power

antenna.

Nothing happens when

button are pressed.

Display is not accurate.

The microprocessor has

malfunctioned due to

noise, etc.

General

1. Turn the unit off.

2. Remove all wires attached to the power

antenna lead. Check each wire for a

possible short to ground using an ohm

meter.

3. Turn the unit back on.

4. Reconnect each amplifier remote wire to

the power antenna lead one by one. If

the amplifiers turn off before all wires are

attached, use an external relay to provide

remote-on voltage (excessive current

required).

Turn off the power, then press the [RELEASE]

button and remove the DCP.

Press the reset button for about 2 seconds with

a thin rod.

Wipe the dirt off with a soft cloth moistened with

cleaning alcohol.

1. Turn down sound volume. Function can

also be restored by turning the power off

and on again. (Speaker volume is reduced

automatically when the speaker protection

circuit operates).

2. If the sound is muted again, consult our

service department.

No sound heard.

Consult your store of purchase.

DCP or main unit

connectors are dirty.
The speaker protection

circuit is operating.

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