• SRS technology Licensed from SRS Labe. SRS technology holds
the follwing patents: U.S. Patent No. 4,748,669, U.S. Patent No.
4,841,572 and U.S. Patent No. 4,866,774.
• SRS the SRS Logo ( ) and the SOUND RETRIEVAL SYSTEM
are registered trademarks of SRS Labs, Inc.
CD-C440W AND CP-C440W constitute CD-C440W.
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
CONTENTS
SAFETY PRECAUTION FOR SERVICE MANUAL .......................................................................................................... 2
VOLTAGE SELECTION.................................................................................................................................................... 2
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR.................................................................................................2
NAMES OF PARTS .......................................................................................................................................................... 4
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD.............................................................................................16
WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 37
FUNCTION TABLE OF IC .............................................................................................................................................. 42
Precaution to be taken when replacing and servicing the
Laser Pickup.
The AEL (Accessible Emission Level) of Laser Power Output
for this model is specified to be lower than Class I Requirements.
However, the following precautions must be observed during
servicing to protect your eyes against exposure to the Laser
beam.
(1) When the cabinet has been removed, the power is turned
on without a compact disc, and the Pickup is on a position
outer than the lead-in position, the Laser will light for several
seconds to detect a disc. Do not look into the Pickup Lens.
(2) The Laser Power Output of the Pickup inside the unit and
replacement service parts have already been adjusted prior
to shipping.
(3) No adjustment to the Laser Power should be attempted
when replacing or servicing the Pickup.
(4) Under no circumstances look directly into the Pickup Lens
at any time.
(5) CAUTION - Use of controls or adjustments, or performance
of procedures other than those specified herein may result
in hazardous radiation exposure.
CAUTION-INVISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO
BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.
VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD. STIRRA
EJ IN I STRALEN OCH BETRAKTA EJ STRALEN MED OPTISKA INSTRUMENT.
ADVERSEL-USYNLIG LASERSTRALING VED ABNING. SE IKKE IND I
STRALEN-HELLER IKKE MED OPTISKE INSTRUMENTER.
VARO! AVATTAESSA OLET ALTTIINA NAKYMATON LASERSATEILYLLE.
ALA TUIJOTA SATEESEEN ALAKA KATSO SITA OPTISEN LAITTEEN LAPI.
VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD.
STIRRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN GENOM OPTISKT
INSTRUMENT.
ADVERSEL-USYNLIG LASERSTRALING NAR DEKSEL APNES. STIRR IKKE
INN I STRALEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER.
The voltage selector is located on the AC voltage selector box. If adjustment is necessary, use a screwdriver in order to turn the
selector in either direction until the correct voltage figure is displayed in the window next to the adjisument screw.
QACCA0001AW00
QACCB0003AW00
92LCoRDT1699A
92LPLUG02792LPLUG155A
QACCE0008AW00
Figure 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR
– 2 –
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
SPECIFICATIONS
CD-C440W
General
Power source:AC 110/127/220/230-240 V, 50/60 Hz
Power consumption:200 W
Dimensions:Width; 270 mm (10-5/8")
Height; 300 mm (11-13/16")
Depth; 368 mm (14-1/2")
Weight:6.9 kg (15.2 lbs.)
Amplifier section
Output power:PMPO; 800 W (total)
MPO; 192 W (96 W + 96 W) (10% T.H.D)
RMS; 100 W (50 W + 50 W) (10% T.H.D)
Input terminals:Video/Auxiliary (audio signal) x 2;
500 mV/47 kohms
Output terminals:Speakers; 6 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
Compact disc player section
Type:3-disc multi-play compact disc player
Signal readout:Non-contact, 3-beam semi-conductor
laser pickup
D/A Converter:1-bit D/A converter
Frequency response:20 - 20,000 Hz
Dynamic range:90 dB (1 kHz)
Tuner section
Frequency range:FM; 88 - 108 MHz
MW; 531 - 1,602 kHz
CD-C440W/CP-C440W
Cassette deck section
Type:Compact cassette tape
Frequency response:50 - 14,000 Hz (Normal tape)
Motor:DC motor with electronic governor x 1
Signal/noise ratio:55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/playback)
Bias and erasure
system:AC
Tape speed:4.76 cm/sec. (1-7/8 ips)
Wow and flutter:0.15 % (WRMS)
Heads:TAPE-1: Playback x 1
TAPE-2: Record/playback x 1
Erase x 1
CP-C440W
Speaker section
Type:2-way 160 mm (6-1/2") woofer and
50 mm (2") tweeter type
Maximum input power: 100 W
Impedance:6 ohms
Dimensions:Width; 220 mm (8-11/16")
Height; 300 mm (11-13/16")
Depth; 247 mm (9-3/4")
Weight:3.4 kg (7.5 lbs.)/each
Specifications for this model are subject to change without
prior notice.
– 3 –
CD-C440W/CP-C440W
NAMES OF PARTS
CD-C440W
Front Panel
1. Disc Tray
2. Disc Number Selector Buttons
3. Disc Skip Button
4. Open/Close Button:
5. CD Play Indicator:
6. CD Repeat Indicator:
7. CD Pause Indicator:
8. Disc Number Indicators
9. Function/CD Track/Preset Channel/Volume/
Frequency/CD Counter/Time/Sleep Time Indicator
10. 3D Surround Indicator
11. Sleep Indicator
12. FM Stereo Moke Indicator:ST
13. FM Stereo Indicator:
14. Extra Bass Indicator: X-BASS
15. Memory Indicator
16. Direction Indicators
17. Reverse Mode Indicator:
18. Record Indicator
19. Timer Indicator
20. Spectrum Analyzer/Volume Level Indicator
21. On/Stand-by Switch
22. Extra Bass Button: X-BASS
23. Volume Up/Down Buttons:
24. Clock Button
25. Timer/Sleep Button
26. Memory/Set Button
27. Tuning and Time Up/Down Buttons:
28. Editing Speed Selector Buttons: NORMAL/HIGH
29. Reverse Mode Button
30. Headphone Socket
31. Function Selector Buttons
32. Record Pause Button:
33. 3D Surround Mode Select Buttons:
PASS/MONO/STEREO
34. Track Down/Review/Preset Down Button:
35. (TAPE 2) Reverse Play Button:
36. Stop Button:
37. (TAPE 1) Play Button/(TAPE 2) Forward Play Button/
(CD) Play/Repeat Button:
38. Track Up/Cue/Preset Up Button:
39. Equalizer Selector/Demo Mode Button
567
24
25
26 27
32
33
34
1234
8
123
10
9
11
12
13
14
15
21
SLEEPST
X-BASS
kHz
MHz
MEMORY
REC
63 250 1k 4k 16k
16171819
2223
20
28 29 30
31
39
38
35
36
37
4041
40. (TAPE 1) Cassette Compartment
41. (TAPE 2) Cassette Compartment
– 4 –
CD-C440W
9
10
12
11
1
2
3
4
5
6
8
7
9
10
12
13
14
15
16
17
18
19
20
23
24
21
22
11
Rear Panel
1. Video/Auxiliary (Audio Signal) Input Sockets
2. Span Selector Switch
3. AC Voltage Selector
4. AC Power Lead
5. FM 75 ohms Aerial Terminal
6. Aerial Earth Terminal
7. AM Aerial Terminal
8. Speaker Terminals
CP-C440W
Speaker Section
9. Tweeter
10. Bass Reflax Ducts
11. Woofer
12. Speaker Wire
CD-C440W
Remote Control
1. Remote Control Transmitter LED
CD-C440W/CP-C440W
1
2
5
6
3
4
7
8
CD Control section
2. Disc Number Select Button
3. Track Down/Review Button:
4. Track Up/Cue Button:
5. Disc Skip Button
6. Play/Repeat Button:
7. Stop Button:
8. Memory Button
9. Clear Button
10. Random Button
11. Pause Button:
Tuner control section
12. Preset Up/Down Buttons:
Tape control section
13. (TAPE 1/2) Stop Button:
14. (TAPE 2) Reverse Play Button:
15. (TAPE 2) Record Pause Button:
16. (TAPE 1) Play Button/
(TAPE 2) Forward Play Button:
17. (TAPE 2) Rewind Button:
18. (TAPE 2) Fast Forward Button:
19. Function Selector Buttons
20. 3D Surround Mode Buttons: PASS/MONO/STEREO
21. Equalizer Mode Button
22. On/Stand-by Button
23. Extra Bass Button: X-BASS
24. Volume Up/Down Buttons:
– 5 –
CD-C440W/CP-C440W
ON/
STAND-BY
CLOCK
MEMORY/
SET
TUNING/TIME
( )
AM 12:00AM 0:000:00
2
3
4
7
6
5
8
9
SETTING THE CLOCK
1
Press the ON/STAND-BY switch to enter the stand-by mode.
2
Press the CLOCK button.
3
Within 5 seconds, press the MEMORY/SET button.
4
Press the TUNING/TIME ( or ) button to select the time
display mode.
"0:00" → The 2 4-hour disp lay will appear.
(0:00 - 23:59)
"AM 0:00" → The 12-hour display will appear.
(AM 0:00 - PM 11:59)
"AM 12:00" → The 12-hour display will appear.
(AM 12:00 - PM 11:59)
Note that this can only be set when the unit is first installed
or it has been reset (see below).
5
Press the MEMORY/SET button.
6
Press the TUNING/TIME ( or ) button to adjust the hour.
Press the TUNING/TIME button once to advance the time by
1 hour. Press for more than 0.5 seconds to advance continu-
ously.
When the 12-hour display is selected, "AM" will change auto-
matically to "PM".
7
Press the MEMORY/SET button.
8
Press the TUNING/TIME ( o r ) button to adjust the
minutes.
Press the button for at least 0.5 seconds to change the time
in 5-minute intervals.
The hour setting will not advance even if minutes advance
from "59" to "00".
9
Press the MEMORY/SET button.
The clock starts operating from "0" seconds. (Seconds are
not displayed.)
Note:
In the event of a power failure or when the AC power lead
is disconnected, the clock display will go out.
When the AC power supply is restored, the clock display will
flash on and off to indicate the time when the power failure
occurred or when the AC power lead was disconnected.
If this happens, follow the procedure below to change the
clock time.
To change the clock time:
When the ON/STAND-BY switch is set to STAND-BY.
When the unit is in the demonstration mode, press the DEMO
button to enter the clock mode.
① Press the MEMORY/SET button.
② Perform steps 6 - 9 above.
When the ON/STAND-BY switch is set to ON.
① Press the CLOCK button.
② Within 5 seconds, press the MEMORY/SET button.
③ Perform steps 6 - 9 above.
To see the time display: (When the power is ON)
Press the CLOCK button.
The time display will appear for about 5 seconds.
To change the time display mode:
1
Press the ON/STAND-BY switch to enter the stand-
by mode.
2
Press the VOLUMEbutton, the TUNING/TIME
button and the ON/STAND-BY switch all at the same
time. Hold them down for at least 1 second.
3
Perform steps 1 - 9 above.
Note:
The operation explained above will erase all data
stored in memory, such as clock and timer settings,
tuner and CD presets.
In this example, the clock is set for the
24-hour (0:00) system.
PREPARATION FOR USE
15
15
Notes concerning use:
Replace the batteries if control distance decreases or oper-
ation becomes erratic.
Periodically clean the transmitter LED on the remote control
and the sensor on the main unit with a soft cloth.
Exposing the sensor on the main unit to strong light may
interfere with operation. Change the lighting or the direction
of the unit.
Keep the remote control away from moisture, excessive heat,
shock, and vibrations.
0.2 m - 6 m
(8" - 20')
RESETTING THE MICROCOMPUTER
1
2
2
Reset the microcomputer under the following conditions:
To erase all of the stored memory contents (clock and timer
settings, tuner and CD presets).
If the display is not correct.
If the operation is not correct.
Note:
To erase the tuner preset memory, see "To erase all of the
contents of preset memory" on page 16.
1 Press the ON/STAND-BY switch to enter the stand-by mode.
2
Press the VOLUME button, the TUNING/TIME button
and the ON/STAND-BY switch all at the same time. Hold
them down for at least 1 second.
OPERATION MANUAL
– 6 –
CD Tray Cover
CD Player Unit
( D1 ) x4
ø3 x10mm
( E2 ) x1
ø3 x10mm
( E1 ) x6
ø3 x8mm
( C3 ) x1
ø3 x8mm
Hook
( C1) x3
( C4 ) x4
( D2 ) x1
( C2 ) x1
Back
Board
Main PWB
Tuner
PWB
Front Panel
1
1
2
Pull
A
(C2)x1
LOCK
LEVER
DISASSEMBLY
Caution on Disassembly
Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:
1. Take cassette tape and compact disc out of the unit.
2. Be sure to remove the power supply plug from the wall
outlet before starting to disassemble the unit.
3. Take off nylon bands or wire holders where they need be
removed when disassembling the unit. After servicing
the unit, be sure to rearrange the leads where they were
before disassembling.
4. Take suffcient care on static electricity of integrated
circuits and other circuits when servicing.
14 CD Changer1. Screw ..................... (P1) x48-5
Mechanism
15 CD Mechanism1. Screw ..................... (Q1) x18-5
Note 1:
How to open the changer manually. (Fig. 7-3)
1. Insert the tip of fine screwdriver into the hole of CD player
base, and press down the worm wheel < A > .
2. Then, turn fully the lock lever in the arrow direction through
the CD cover, and close.
(Note 1)
2. Hook....................... (C1) x3
3. Hook....................... (C2) x2
4. Screw ..................... (C3) x1
5. Socket .................... (C4) x4
2. Soket ...................... (D2) x1
2. Screw ..................... (E2) x1
2. Holder .................... (F2) x2
3. Flat Wire................. (F3) x4
4. Socket .................... (F4) x3
1. Screw ..................... (G1) x18-1
2. Screw...................... (K1) x6
1. Screw ..................... (L1) x48-3
2. Cover ..................... (M2) x1
2. Guide ..................... (N2) x2
the hole on the loading chassis bottom in this state.
After that, push forward the CD player base.
CP-C440W
STEP
REMOVALPROCEDUREFIGURE
1Speaker1. Net Frame Ass'y .....(A1) x18-6
2. Duct Front Panel ....(A2) x1
3. Screw...................... (A3) x48-7
4. Screw...................... (A4) x4
PROCEDURE
FIGURE
– 7 –
CD-C440W
( A1 ) x2
ø3 x12mm
( B1 ) x2
ø3 x8mm
Side Panel
(Right)
( B2 ) x2
ø3 x8mm
Rear Panel
CD-C440W/CP-C440W
Top Cabinet
( A1 ) x2
ø3 x12mm
Side Panel
(Left)
( B1 ) x2
ø3 x8mm
Figure 7-1
Figure 7-2
< A >
Figure 7-3
CD-C440W/CP-C440W
SHARP
(A1) x1
Speaker Box
Screw
driver
Driver should be pried
away from speaker Box.
Direction of handle
Speaker Box
(A4) x4
ø4 x12mm
(A2) x1
(A3) x4
ø3 x10mm
Woofer
( G1 ) x1
ø3 x11mm
( F1 ) x1
ø3 x10mm
( F3 ) x1
Headphone
PWB
Main PWB
( J1 ) x3
ø3 x10mm
( J2 ) x11
ø3 x10mm
( F4 ) x3
Push
Figure 8-1
Switch PWB
( F3 ) x2
Front Panel
Push
( F1 ) x1
ø3 x10mm
( H1 ) x2
ø3 x8mm
Front Panel
( F2 ) x2
( F3 ) x1
( F1 ) x1
ø3 x10mm
Display
PWB
Open
Tape
Mechanism
( P1 ) x4
ø3 x12mm
( Q1 ) x1
ø2.6 x10mm
Shift Lever
CD Changer
Mechanism
CD Player Base
CD Mechanism
Care when installing the CD changer mechanism.
Install the CD changer mechanism on the CD player base after
the shift lever has been set in the highest position.
Figure 8-5
CP-C440W
( K1 ) x6
ø3 x10mm
Tape
Mechanism
Power Supply PWB
Power Amp.
PWB
( M2 ) x1
( N1 ) x1
ø3 x10mm
Cassette
Holder
(Left/Right)
Figure 8-2
( L1 ) x4
ø3 x10mm
Figure 8-6
Figure 8-3
( M1 ) x1
ø3 x10mm
Turntable
Disc Tray
( N2 ) x1
CD Player Unit
( N2 ) x1
Figure 8-4
( N1 ) x1
ø3 x10mm
Figure 8-7
– 8 –
REMOVING AND REINSTALLING THE MAIN PARTS
CD MECHANISM SECTION
Perform steps 1, 2, 3, 14 and 15 of the disassembly method
to remove the CD mechanism.
How to remove the turntable up/down motor
(See Fig. 9-1)
1. Remove the screws (A1) x 2 pcs., to remove the turntable
up/down motor.
How to remove the pickup (See Fig. 9-2)
1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2).
2. Remove the stop washer (B3) x 1 pc., to remove the gear
(B4).
3. Remove the pickup.
Turntable Up/Down Motor
Figure 9-1
( B1 ) x2
2.6 x6mm
Stop Washer
( B3 ) x1
CD-C440W/CP-C440W
( A1 ) x2
ø2 x5mm
Pickup
Shaft
( B2 ) x1
CD Mechanism
Gear
( B4 ) x1
Figure 9-2
– 9 –
CD-C440W/CP-C440W
ADJUSTMENT
MECHANISM SECTION
• Driving Force Check
Torque Meter
Play: TW-2412Tape 1: Over 80 g
• Torque Check
Torque Meter
Tape 1
Play: TW-211130 to 60 g. cm30 to 100 g.cm
Fast forward: TW-2231—50 to 100 g.cm
Rewind: TW-2231—50 to 100 g.cm
1: Description of the "FM IF Adjustment" is not carried on this
Manual. It is because the IF coil in the FM front end section
has been best adjusted in the factory so that its further
adjustment is not needed at the field. When replacing the
FM front end assembly, no adjustment is needed either.
2: The parts in the FM front end section are prepared in a
complete unit, so you can't obtain each part individually
• FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
• Setting the test mode
Any one of test mode can be set by pressing several keys as follows.
<REC. PAUSE> + <CD> + <POWER> TEST: CD operation test
• TEST mode
Function — CD test mode
Setting of TEST mode
Indication of CD TST mode (Fig. 11-1)
OPEN/CLOSE operation is manual operation.
The pickup can be moved by using the (
<MEMORY>
LASER ON
<MEMORY>
Tracking on the spot.
SERVO OFF PLAY
) or () key.
<MEMORY>
Tracking on the spot.
SERVO ON PLAY
IL is not performed.
CD-C440W/CP-C440W
<STOP>
STOP
<PLAY> key input
TOC. IL is performed, and the ordinary PLAY is performed.
If the following key is pressed during PLAY, it is possible
to specify directly any Track No.
<Disc Number 1> key: Track 4
<Disc Number 2> key: Track 9
Press <STOP> key.
Stop
<Disc Number 3> key: Track 15
Note:
Only in STOP state it is possible to slide the pickup with the () or () key.
VOL. --- Last memory
BAL. --- CENTER
R.GEQ. --- FLAT
X-BAS --- OFF
Canceling method - POWER OFF
Figure 11-1
CD SECTION
Since this CD system incorporates the following automatic adjustment function, when the pickup is replaced, it is not necessary
to readjust it.
Since this CD unit does not need adjustment, the combination of PWB and laser pickup unit is not restricted.
5. RF level automatic follow-up of the tracking gain
This automatic adjustment is performed each time a disc is changed. Therefore,
each disc is played back using the optimal settings.
0.1s
0.50 V
IC1 20 FE
0.1s
0.50 V
IC1 7 TE
FOCUS
OFF-SET
ADJUST
TRACKING
OFF-SET
ADJUST
1
2
10ms
0.50 V
IC1 20 FE
10ms
0.50 V
IC1 7 TE
Figure 11-2
200 ms
1V/diV
IC 1 15
200 ms
1V/diV
IC 1 7
TO
TE
TRACKING/
ERROR
BARANCE
1
ADJUST
2
Figure 11-4
– 11 –
Figure 11-3
Enlarged
View
TRACKING
OFF-SET
ADJUST
1
2
CD-C440W/CP-C440W
FRONT
VIEW
NOTES ON SCHEMATIC DIAGRAM
• Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.
• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to
electrolytic capacitor, the expression “capacitance/withstand
voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
• Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
• The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chassis with no signal given.
1. In the tuner section,
( ) indicates AM
< > indicates FM stereo
2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
( ) indicates the record state.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
• Parts marked with “ ” ( ) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.