ASA Electronics MCD5050 ユーザーズマニュアル
MCD5050
13
Troubleshooting
Specifications
General
Power Supply Requirements . . . . . . . . . . . . . . . . . . . . . . . . . DC 12 Volts, Negative Ground
Chassis Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 (W) x 160 (D) x 50 (H)
Tone Controls . . . . . . . . . . . . . . . . . . . Bass (at 100 Hz), ±10 dB; Treble (at 10 kHz), ±10 dB
Maximum Output Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4x40W
Current Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Ampere (max.)
CD Player
Signal to Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . More than 65 dB
Channel Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . More than 45 dB
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Hz – 18 kHz
FM Tuner
Tuning range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87.5-108.0
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4uV
Stereo separation @ 1 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >25dB
Power Supply Requirements . . . . . . . . . . . . . . . . . . . . . . . . . DC 12 Volts, Negative Ground
Chassis Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 (W) x 160 (D) x 50 (H)
Tone Controls . . . . . . . . . . . . . . . . . . . Bass (at 100 Hz), ±10 dB; Treble (at 10 kHz), ±10 dB
Maximum Output Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4x40W
Current Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Ampere (max.)
CD Player
Signal to Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . More than 65 dB
Channel Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . More than 45 dB
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Hz – 18 kHz
FM Tuner
Tuning range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87.5-108.0
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4uV
Stereo separation @ 1 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >25dB
Problem
Cause
Corrective Action
No power.
Vehicle ignition switch is not
on.
on.
If the power supply is connected to
the vehicle accessory circuits but
the engine is not moving, switch the
ignition key to “ACC”.
the vehicle accessory circuits but
the engine is not moving, switch the
ignition key to “ACC”.
The fuse is blown.
Replace the fuse.
Disc cannot be loaded
or ejected.
or ejected.
There is a disc already inside
the unit.
the unit.
Remove the current disc and insert
the new one.
the new one.
Inserting disc in wrong
direction.
direction.
Insert disc with label facing up.
Disc is defective or dirty.
Clean disc or try playing another
one.
one.
Excessive temperature.
Cool vehicle to a normal
temperature.
temperature.
Condensation has collected.
Turn off for an hour, then try again.
No sound.
Volume turned down too low.
Adjust volume until sound is heard.
Wiring not connected properly. Check wiring connections.
Sound skips or sound
quality is poor.
quality is poor.
Installation angle exceeds 30
degrees.
degrees.
Adjust the installation angle to less
than 30 degrees.
than 30 degrees.
Disc is defective or dirty.
Clean disc or try playing another
one.
one.
Operation keys do not
work.
work.
Microcomputer is not operating
properly due to noise.
properly due to noise.
Press RESET.
Radio does not work
Antenna cable not connected. Insert antenna cable firmly.
Automatic station
selection does not work.
selection does not work.
Radio signals are too weak.
Select a station manually.
AM Tuner
Tuning range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .522-1710
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4uV
Stereo separation @ 1 kHz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >25dB
Tuning range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .522-1710
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4uV
Stereo separation @ 1 kHz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >25dB
Specifications subject to change without notice.