Tuner section, Amplifier section, Cd player section – Aiwa CD-DW420 U User Manual
Page 26: Cassette deck section, Common section, Speaker, Specifications, Troubleshooting guloe
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SPECIFICATIONS
Tuner section
FM
87.5-
108.0 MHz
Antenna: Rod antenna
AM
530/531 - 1.710/1.602 kHz (10/9 kHz
step)
Antenna: Ferrite bar antenna
Amplifier section
Power output
2W
-I-
2W (8 ohms, EIAJ)
Power requirements
DC 12 V using eight size D (R20)
batteries
AC 120 V, 60 Hz
Power consumption
18 W
CD player section
Disc
Compact disc
Scanning method
Non-contact optical laser
(semiconductor iaser application)
Laser
Semiconductor iaser
X =
780 nm
Rotation speed
Approx. 500 - 200 rpm/CLV
Error correction
Cross Interleave, Reed Solomon code
Number of channels
2 channels
D/A conversion
1-bit DAC
Cassette deck section
Track format
4
tracks, 2 channels
Frequency response
Normal tape: 50-12,000 Hz (EIAJ)
Recording system
AC bias
Erasure system
Magnet erase
Motor
DC motor (1)
Heads
Deck 1
Recording/playback head (1)
Erasure head (1)
Deck 2
Playback head (1)
Common section
Dimensions (W
x
H
x
D)
624
X
245
X
262 mm (24%
x
9%
x
10% in.)
Weight
6.1
kg (13 lbs 7 oz) excluding
batteries
Accessories
AC cord (1)
Speaker
Cabinet type
2-way bass reflex type
Speaker
100 mm cone type woofer
27 mm ceramic type tweeter
Impedance
8 ohms
Allowable max. input
5 W
Dimensions (W
x
H
x
D)
185
x
235
X
229 mm (7%
x
9%
x
9V8 in.)
Weight
1.3 kg (2 l b s 1 4 o z . ) x 2
Specifications and external appearance are
subject to change without notice.
TROUBLESHOOTING GUlOE
Symptom
Cause
Solutions
(Q
0)
c
0)
o
There is no sound.
• The AC cord is not connected properly.
• The function is not seiected correctly.
• Correct the connection error.
• Set the FUNCTION switch to the correct
position.
There is no sound and
indicators faii to light up on
the unit.
• The speaker jack has short-circuited.
• Disconnect the AC cord, correct the condition
including speaker connections, and connect
the AC cord again.
Sound comes from only one
speaker.
• A speaker cord is disconnected.
• Correct the speaker cord connection.
c
o
4M
o
o
CO
0>
c
There is constant, wave-like
static.
• The receiver is incorrectly tuned.
• Correct the tuning.
There is noise.
• The unit is picking up outside noise.
• Change the direction of the antenna.
• Turn the unit to a different orientation.
• Move the unit away from other electrical
appliances, such as a TV or fluorescent lights,
or move the appliances.
CD
i-l
o ë
O M
CD play does not begin.
• The CD is upside down.
• The CD is excessively dirty.
• The CD function was not selected.
• The unit is in pause mode.
• Place the CD with the printed side up.
• Clean the CD.
• Set the FUNCTION switch to CD.
• Press the ►/!! button to leave pause mode.
The CD produces no sound.
• There is condensation inside the unit.
• Remove the disc and leave the player turned
on. (-> Page 4)
C
,o
'iM
0
) o
£ 0)
ts ^
h
o
(0 Q)
Ü -s
The tape does not run.
• Deck is in pause mode.
• Press the II button to release pause.
It does not record.
• The erasure prevention tab on the tape has
been broken.
• The head is dirty.
• Cover the tab opening well with cellophane
tape.
• Clean the head properly.
It does not erase.
• The erasure head is dirty.
• Clean the erasure head.
26