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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.
✔ No ACC position on vehicle ignition.02
☞ Connect the same cable to the ignition as the battery cable.
? Nothing happens when the buttons are pressed.04
✔ The computer chip in the unit is not functioning normally.
☞ Press the reset button on the unit (page 4).
? There’s a source you can’t switch.05
✔ There’s no tape 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 faceplate does not open or close.09
✔ The faceplate is incorrectly attached.
☞ Reattach the faceplate correctly, See the section on <Removing
the Faceplate>(page 7).
? The memory is erased when the ignition is turned OFF.10
✔ The battery wire has not been connected to the proper terminal.
☞ Connect the wire correctly, referring to the section on
<Connecting Wires to Terminals>.
✔ The ignition and battery wire are incorrectly connected.11
☞ Connect the wire correctly, referring to the section on
<Connecting Wires to Terminals>.
? 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 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.
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>.
The messages shown below display your systems
condition.
E-77: The unit is malfunctioning for some reason.E77
➪
Press the reset button on the unit. If the "E-77"
code does not disappear, consult your nearest
service center.
2 3 (Blink): The tape player section is not operating properly.
E60
➪
Reinsert the Tape. If the tape cannot be ejected or
the display continues to flash even when the tape
has been properly reinserted, please switch off the
power and consult your nearest service center.
Troubleshooting Guide
B64-2381-00 02.9.25 2:44 PM Page 15