English
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What might seem to be a malfunction in your unit may
just be the result of slight misoperation or miswiring.
Before calling service, first check the following table
for possible problems.
General
?
The power does not turn ON.
01
✔
The fuse has blown.
☞
After checking for short circuits in the wires, replace the fuse with
one with the same rating.
?
There’s a source you can’t switch.
07
✔
There’s no media inserted.
☞
Set the media you want to listen to. If there’s no media in this
unit, you can't switch to each source.
✔
The Disc changer isn’t connected.
08
☞
Connect the Disc changer. If the Disc changer isn’t connected to
it's input terminal, You can't switch to an external disc source.
?
The memory is erased when the ignition is turned OFF.
10
✔
The ignition and battery wire are incorrectly connected.
11
☞
Connect the wire correctly, referring to the section on
<Connecting Wires to Terminals>.
?
The TEL mute function does not work.
15
✔
The TEL mute wire is not connected properly.
☞
Connect the wire correctly, referring to the section on
<Connecting Wires to Terminals>.
?
The TEL mute function turns ON even though the TEL mute wire is
not connected.
16
✔
The TEL mute wire is touching a metal part of the car.
☞
Pull the TEL mute wire away from the metal part of the car.
?
Even if Loudness is turned ON, high-pitched tone isn't compensated
for.
17
✔
Tuner source is selected.
☞
High-pitched tone isn't compensated for when in Tuner source.
?
No sound can be heard, or the volume is low.
✔
The fader or balance settings are set all the way to one side.
21
☞
Center the fader and balance settings.
✔
The input/output wires or wiring harness are connected incorrectly.
22
☞
Reconnect the input/output wires or the wiring harness correctly.
See the section on <Connecting Wires to Terminals>.
✔
The cassette tape is bad.
23
☞
Try playing another cassette tape. If works fine, the first tape was
bad.
✔
The values of Volume offset are low.
24
☞
Turn up the Volume offset, referring to the section on <Audio
control>(page6).
?
The sound quality is poor or distorted.
25
✔
One of the speaker wires is being pinched by a screw in the car.
☞
Check the speaker wiring.
✔
The tape head is dirty.
26
☞
Clean the tape head.
✔
The speakers are not wired correctly.
27
☞
Reconnect the speaker wires so that each output terminal is
connected to a different speaker.
?
Even though Synchronize Clock is ON, the clock can’t be adjusted.
35
✔
The received RDS station isn’t sending time data.
☞
Receive another RDS station.
Tuner source
?
Radio reception is poor.
39
✔
The car antenna is not extended.
☞
Pull the antenna out all the way.
✔
The antenna control wire is not connected.
40
☞
Connect the wire correctly, referring to the section on
<Connecting Wires to Terminals>.
Troubleshooting Guide
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KRC-766(M)_U.S_r2 02.11.11 7:51 PM Page 38
Summary of Contents for KRC-666
Page 42: ...KRC 766 M Eng r3 Page 42 ...
