Sharp CD-C440W User manual

– 1 –
CD-C440W/CP-C440W
SERVICE MANUAL
No. S7749CDC440W/
CONTENTS Page
SAFETY PRECAUTION FOR SERVICE MANUAL .......................................................................................................... 2
VOLTAGE SELECTION.................................................................................................................................................... 2
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR.................................................................................................2
SPECIFICATIONS ............................................................................................................................................................ 3
NAMES OF PARTS .......................................................................................................................................................... 4
OPERATION MANUAL..................................................................................................................................................... 6
DISASSEMBLY................................................................................................................................................................. 7
REMOVING AND REINSTALLING THE MAIN PARTS.................................................................................................... 9
ADJUSTMENT................................................................................................................................................................ 10
NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 12
BLOCK DIAGRAM .......................................................................................................................................................... 13
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD.............................................................................................16
WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 37
TROUBLESHOOTING (CD SECTION) .......................................................................................................................... 38
FUNCTION TABLE OF IC .............................................................................................................................................. 42
FL DISPLAY.....................................................................................................................................................................51
REPLACEMENT PARTS LIST/EXPLODED VIEW
CD-C440W
CP-C440W
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.
• 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.
SHARP CORPORATION

CD-C440W/CP-C440W
– 2 –
SAFETY PRECAUTION FOR
SERVICE MANUAL
Precaution to be taken when replacing and servicing the
Laser Pickup.
The AEL (Accessible Emission Level) of Laser Power Output
forthismodelisspecifiedtobelowerthanClassIRequirements.
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
outerthanthelead-inposition,theLaserwilllightforseveral
seconds to detect a disc. Do not look into the Pickup Lens.
(2) The Laser Power Output of the Pickup inside the unit and
replacementservicepartshavealreadybeenadjustedprior
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- Useofcontrolsoradjustments,or performance
of procedures other than those specified herein may result
in hazardous radiation exposure.
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
VOLTAGE SELECTION
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
QACCE0008AW00
92LCoRDT1699A
92LPLUG027 92LPLUG155A
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.
Figure 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR

– 3 –
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
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
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
SPECIFICATIONS
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
Specifications for this model are subject to change without
prior notice.
CD-C440W
CP-C440W

CD-C440W/CP-C440W
– 4 –
NAMES OF PARTS
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
40. (TAPE 1) Cassette Compartment
41. (TAPE 2) Cassette Compartment
CD-C440W 1234
21 2223
24
25
26 27 28 29 30
40 41
123
X-BASS
kHz
MHz
63 250 1k 4k 16k
SLEEPST
MEMORY
REC
567 8
910
15
12
13
14
16171819 20
11
31
32
33
34 36
35 37
39
38

– 5 –
CD-C440W/CP-C440W
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
Speaker Section
9. Tweeter
10. Bass Reflax Ducts
11. Woofer
12. Speaker Wire
Remote Control
1. Remote Control Transmitter LED
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:
CD-C440W
CP-C440W
CD-C440W
1
2
3
4
5
6
7
8
9
10
12
11
1
2
3
4
5
6
87
910
12
13
14
15
16
17
18
19
20
23 24
21
22
11

CD-C440W/CP-C440W
– 6 –
OPERATION MANUAL
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 24-hour display 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 ( or ) 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 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.
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.
1Press the ON/STAND-BY switch to enter the stand-by mode. 2Press 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.

– 7 –
CD-C440W/CP-C440W
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.Takeoffnylonbandsorwireholderswheretheyneedbe
removed when disassembling the unit. After servicing
theunit, be sureto rearrangethe leadswhere theywere
before disassembling.
4. Take suffcient care on static electricity of integrated
circuits and other circuits when servicing.
Figure 7-2
Figure 7-3
1 Top Cabinet 1. Screw ..................... (A1) x4 7-1
2 Side Panel 1. Screw ..................... (B1) x6 7-1
(Left/right)
3 CD Player Unit/ 1. Turn on the power supply, 7-2
CD Tray Cover open the disc tray, take out
the CD cover, and close.
(Note 1)
2. Hook....................... (C1) x3
3. Hook....................... (C2) x2
4. Screw ..................... (C3) x1
5. Socket .................... (C4) x4
4 Tuner PWB 1. Screw ..................... (D1) x4 7-2
2. Soket ...................... (D2) x1
5 Back Board 1. Screw ..................... (E1) x6 7-2
2. Screw ..................... (E2) x1
6 Main PWB 1. Screw ..................... (F1) x3 8-1
2. Holder .................... (F2) x2
3. Flat Wire................. (F3) x4
4. Socket .................... (F4) x3
7 Headphones PWB 1. Screw ..................... (G1) x1 8-1
8 Front Panel 1. Screw ..................... (H1) x2 8-1
9 Display PWB/ 1. Screw ..................... (J1) x3 8-2
Switch PWB 2. Screw ..................... (J2) x11
10 Tape Mechanism 1. Open the cassette holder. 8-2
2. Screw...................... (K1) x6
11 Power Amp. PWB 1. Screw ..................... (L1) x4 8-3
12 Turntable 1. Screw ..................... (M1) x1 8-4
2. Cover ..................... (M2) x1
13 Disc Tray 1. Screw ..................... (N1) x2 8-4
2. Guide ..................... (N2) x2
14 CD Changer 1. Screw ..................... (P1) x4 8-5
Mechanism
15 CD Mechanism 1. Screw ..................... (Q1) x1 8-5
STEP REMOVAL PROCEDURE FIGURE
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 hole on the loading chassis bottom in this state.
After that, push forward the CD player base.
Figure 7-1
( B1 ) x2
ø3 x8mm
( B2 ) x2
ø3 x8mm ( B1 ) x2
ø3 x8mm
Top Cabinet
Side Panel
(Right)
Rear Panel
Side Panel
(Left)
( A1 ) x2
ø3 x12mm
( A1 ) x2
ø3 x12mm
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
< A >
LOCK
LEVER
CD-C440W
CD-C440W
STEP REMOVAL PROCEDURE FIGURE
1 Speaker 1. Net Frame Ass'y .....(A1) x1 8-6
2. Duct Front Panel ....(A2) x1
3. Screw......................(A3) x4 8-7
4. Screw......................(A4) x4
CP-C440W

CD-C440W/CP-C440W
– 8 –
Figure 8-1
Figure 8-2
Figure 8-3
Figure 8-4
Care when installing the CD changer mechanism.
InstalltheCDchangermechanismontheCDplayerbaseafter
the shift lever has been set in the highest position.
Figure 8-5
Figure 8-6
Figure 8-7
Display
PWB
Switch PWB
Tape
Mechanism
Open
Cassette
Holder
(Left/Right)
Front Panel
( K1 ) x6
ø3 x10mm
( J2 ) x11
ø3 x10mm
( J1 ) x3
ø3 x10mm
Power Supply PWB ( L1 ) x4
ø3 x10mm
Power Amp.
PWB
( N1 ) x1
ø3 x10mm
( N1 ) x1
ø3 x10mm
( M1 ) x1
ø3 x10mm
Turntable
Disc Tray
( M2 ) x1
( N2 ) x1
( N2 ) x1
CD Player Unit
( P1 ) x4
ø3 x12mm
( Q1 ) x1
ø2.6 x10mm
CD Changer
Mechanism
CD Mechanism
Shift Lever
CD Player Base
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
Main PWB ( H1 ) x2
ø3 x8mm
( G1 ) x1
ø3 x11mm
( F1 ) x1
ø3 x10mm
( F4 ) x3
( F3 ) x1
Front Panel
Tape
Mechanism
( F1 ) x1
ø3 x10mm
( F1 ) x1
ø3 x10mm
Push
Push
Headphone
PWB
( F3 ) x2
( F3 ) x1
( F2 ) x2

– 9 –
CD-C440W/CP-C440W
How to remove the pickup (See Fig. 9-2)
1.Removethe screws(B1) x 2pcs., toremove the shaft(B2).
2. Remove the stop washer (B3) x 1 pc., to remove the gear
(B4).
3. Remove the pickup.
Figure 9-2
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.
Figure 9-1
( B1 ) x2
2.6 x6mm
Shaft
( B2 ) x1
Stop Washer
( B3 ) x1
Gear
( B4 ) x1
CD Mechanism
Pickup
( A1 ) x2
ø2 x5mm
Turntable Up/Down Motor

CD-C440W/CP-C440W
– 10 –
MECHANISM SECTION
• Driving Force Check
Torque Meter Specified Value
Play: TW-2412 Tape 1: Over 80 g
Tape 2: Over 80 g
• Torque Check
Torque Meter
Tape 2
Play: TW-2111 30 to 60 g. cm 30 to 100 g.cm
Fast forward: TW-2231 — 50 to 100 g.cm
Rewind: TW-2231 — 50 to 100 g.cm
Specified
Value
Adjusting
Point Instrument
Connection
Test Tape
Normal MTT-111 VRM1 3,000 ±Speaker
speed 30 Hz terminal
ADJUSTMENT
Specified Value
Tape 1
• Tape Speed
fL: Low-range frequency
fH: High-renge frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
IF 450 kHz 1,602 kHz T351 *1
AM Band — 531 kHz (fL): T306 *2
Coverage 1.1 ±0.1 V
AM 990 kHz 990 kHz (fL): T302 *1
Tracking
Test Stage Frequency Frequency
Display Setting/
Adjusting
Parts
Instrument
Connection
• FM
Notes:
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
Adjusting
Parts Instrument Connection
Frequency
Display
Frequency
• FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
98.00 MHz 98.00 MHz VR351* Input: Antenna
(25 dBµV) Output: Speaker
Terminal
Figure 10 ADJUSTMENT POINTS
TUNER SECTION
*1. Input: Antenna, Output: TP302
*2. Input: Antenna, Output: TP301
TUNER PWB
SO301
ANTENNA
TERMINAL
FE301
TP302
T351
IC303
T306
T302
VR351
AM IF
FM MUTE
LEVEL
AM BAND
COVERAGE
AM
TRACKING
VRM1
TAPE
SPEED
TAPE MECHANISM PWB

– 11 –
CD-C440W/CP-C440W
TEST MODE
2
1
TO
TE
200 ms
1V/diV
IC 1 15
200 ms
1V/diV
IC 1 7
TRACKING/
ERROR
BARANCE
ADJUST
Figure 11-2 Figure 11-3
2
1
10ms
0.50 V
IC1 20 FE
10ms
0.50 V
IC1 7 TE
Enlarged
View
TRACKING
OFF-SET
ADJUST
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.
• Automatic adjustment item
1. Focus offset (Fig. 11-2)
2. Tracking offset (Fig. 11-3)
3. E/F balance (tracking error balance) (Fig. 11-4)
4. RF level AGC function (HF level: constant)
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.
CD SECTION Figure 11-1
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
• 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 ( ) or ( ) key.
<MEMORY>
LASER ON
<PLAY> key input Press <STOP> key. Stop
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
<Disc Number 3> key: Track 15
<MEMORY>
Tracking on the spot.
SERVO OFF PLAY
<MEMORY>
Tracking on the spot.
SERVO ON PLAY STOP
2
0.1s
0.50 V
IC1 20 FE
0.1s
0.50 V
IC1 7 TE
1
FOCUS
OFF-SET
ADJUST
TRACKING
OFF-SET
ADJUST
Figure 11-4
IL is not performed.
<STOP>

CD-C440W/CP-C440W
– 12 –
SW1 OPEN/CLOSE ON—OFF
SW2 MWCHA UP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW601 SPAN SELECTOR 50/9—100/10
SW701 ON/STAND-BY ON—OFF
SW702 CLOCK ON—OFF
SW703 TIME/SLEEP ON—OFF
SW704 DISC 1 ON—OFF
SW705 DISC 2 ON—OFF
SW706 DISC 3 ON—OFF
SW707 DISC SKIP ON—OFF
SW708 OPEN/CLOSE ON—OFF
SW709 CD ON—OFF
SW710 TUNER/BAND ON—OFF
SW711 TAPE ON—OFF
SW712 VIDEO ON—OFF
SW717 CENTER MODE/PHANTOM ON—OFF
SW719 CENTER MODE/NORMAL ON—OFF
SW721 DOLBY PRO LOGIC/BYPASS ON—OFF
SW723 REC/PAUSE ON—OFF
SW724 TUNING UP/TIME ON—OFF
SW725 VOLUME UP ON—OFF
•The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis 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.
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
electrolyticcapacitor,theexpression“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.
REF. NO DESCRIPTION POSITION POSITIONREF. NO DESCRIPTION
Figure 12 TYPES OF TRANSISTOR AND LED
ECB
(S)(G)(D)
(1) (2) (3)
FRONT
VIEW
2SA2878 A
2SK246 GR
2SC2236 Y
2SC380 O
KRC102 M
KRC104 M
KRA107 M
KRC107 M
KTA1266 GR
KTC3199 GR
KTC3203 Y
2SD2012
2SC1845 F
KTA1271 Y
KTA1273 Y
FRONT
VIEW
333GTH2
333YTH2
333YTH4
5N4GTN52
5N4YTN52
LMKD515B
BCE
(D)(G)(S)
(3) (2) (1)
FRONT
VIEW
SW726 X-BASS ON—OFF
SW728 STOP ON—OFF
SW729 FWD ON—OFF
SW730 FF ON—OFF
SW731 MEMORY SET ON—OFF
SW732 TUNING DOWN/TIME ON—OFF
SW733 VOLUME DOWN ON—OFF
SW734 EQUALIZER/DEMO ON—OFF
SW735 3D SURROUND ON—OFF
SW736 REVERSE MODE ON—OFF
SW737 REV ON—OFF
SW738 REW ON—OFF
SW739 EDIT NORMAL ON—OFF
SW740 EDIT HIGH ON—OFF
SW801 VOLTAGE SELECTOR 110—127—
220—230/240
SWM 3 REC FWD ON—OFF
SWM 4 REC RVS ON—OFF
SWM 5 F.A.S. ON—OFF
SWM 6 CAM ON—OFF

– 13 –
CD-C440W/CP-C440W
Figure 13 BLOCK DIAGRAM (1/3)
1
2
3
4
5
98
6
7
20
12
13
24 25 30
31
3222
34
35 36
10 11
27 26 28
29
PU-IN SW
XL1
XIN
LD0
FIN2 JP–
CV+
SLC
SL1
FIN1 E F
TO
FD
SPO
SP
SLD
SL–
SL+
DRF
CL
DAT
CE
VCC1
6
+4.9V
PICKUP IN
SW4
FOCUS COIL
TRACKING COIL
M1
SPINDLE
MOTOR
M
M
M2
SLED
MOTOR
PICKUP UNIT
9
IC2
LC78623E
SERVO/SIGNAL
CONTROL
+B4
IC5
M56748FP
DRIVER
IC1
LA9240M
SERVO AMP.
RES. CQCK. COIN
SQOUT. RWC. WRQ
~
~
~
CL, DAT, SELIAL CONTROL/CE
SL+. SL–. DRF
+4.9V
62 64 45 3623 43
37
38 39
40 24 25
5853
10 12 20
32 40 43 44
5352515431302923271615
4144
Q1
+4.9V Q81 +7.3V (B4)
REGULATOR
TO MAIN SECTION
XOUT
EFMO EFMIN CLV+ JP–
CONT2
CONT1
27 26
SOL
SPEED H/L
RCHO
RVSS
LVSS
LCHO
VVDD
VDD
LVDD
RVDD
XVDD
TO MAIN SECTION
1
97
3
2
5
86
CD O/C SW
CD D.NO
CD U/D
SW1 OPEN/CLOSE SW
SW3 DISC NO
SW2 MEHCA UP
+B4
Q94
CONT1 CONT2
SPEED HIGHT/LOW
DRIVER
SWITCHING
IC91
LOADING MOTOR
DRIVER
M
LOADING MOTOR
UP/DOWN
Q93 Q91 SOLM2
SOLENOID
+B2
SOL

CD-C440W/CP-C440W
– 14 –
Figure 14 BLOCK DIAGRAM (2/3)
44
46
1718
15
1
10
11 24
25
26
27
28
5
60
616364
65
66
14 15 16 17 18
37
865
40
41
33 20
48
71
8
29
30
52
39
45
2
22
23
31
49
50
51
67
68
69
70
72
76
80
3430
14
56
25
24
23
61
51
60
52
56
54
59
53
57
55
63
49 42
6
43
5
44
4
26
64
48
45
1
3
7
6
8
14
13
19
15
10
12
16
98
18
17
7
6
20
5
21
4
4
3
23
2
24
1
8
17
15
14
11 12
16
18
12
10
13
6
13
10
7
21
22
23
24
20
3
19
17
9
8
5
4
2
7
5
4
36
21
22
1
20 11
15 16
1
2
PROT
RELAY
L-OUT
R-OUT
+B3
VDD
VCC
Q461
SPACE CONT
IC453(1/2)
BU4052BU
CENTER CONT
IC453(1/2)
MODE1-5
MONO
PASS
SRS STEREO
SRS MONO
MODE
IC451
SRS5250S
SRS
R-IN
L-IN
Q45
8
~
Q46
0
Q46
3
Q46
6
Q46
7
Q46
8
Q46
9
SRS A
SRS 3D
SRS PASS
DOLBY P.L
SRS
BALANCE
4CH SP
BAIS
R-OUT
L-OUT
+B3
X351CF351
+B3
+B3
+B3
MAIN STB
CLEAR
MAIN SI
MAIN SO
MAIN SCK
SM
TUNER MUTE
SD
VOLTAGE
REGURATER
+5V
VP
VF2
(AC)
FL701
IC601
IX0171AW
MICROCOMPUTER
Q83
Q84
+B1
S-MUTE
POWER
TA CUM SW
T2 PH-OUT
TA CUM SW
TA MOT H/L
TA MOT SW
REC/PB
T1 RUN
TA PUL
T2 A-FP
T2 B-FP
PB MUTE
T1/T2
BIAS
HI SPEED
REC MUTE
R-IN
L-IN
J501
VDD
VSS
+B3
CL CE
DI
DRIVER
T2 PH-OUT
SOLENOID
SOLM1
T2 PH-IN +B2
TA PUL
QM03
PHM1
FAS SW
SWM5
CAM SW
SWM6 T1 RUN SW
REC RVS
SWM4
T2 A/B-FP
REC FWD
SWM3 T2 A/B-FP
MOTOR
DRIVER
DRIVER
DRIVER
QM02 TA MOT SW
HI SPEED
TA MOT H/L
QM05
+B2
QM04QM01
MM1
TAPE
MOTOR
M
SWITCHING
SWITCHING
SWITCHING
Q119
Q115
Q116
R NF
L NF
HI SPEED
REC MUTE
PB MUTE
Q117
Q118
MUTING
MUTING
Q121
Q122
REC/PB
L
R
VIDEO2
VIDEO1
RL
IN
RL
L
R
R
L
L
R
R
L
FRONT
IN
X-BASS
RTINLTIN
IC501
LC75396E
AUDIO PROCESSOR
FM +B
XT21
VT
T306T302
CF302
P.B
+B7
REF
T1/T2
NOR
/HIGH ALC
REC
P.B.
REC
R
L
IC101
AN7345K
PLAYBACK&RECORD AMP
R REC
L REC
POP REDUCE
R
L
R NF
R(T2)
L(T2)
R(T1)
L(T1)
L NF
Q124 Q126
BAIS SWITCHING
SWITCHING
DO
CE
CL
DI
FE301
FM FRONT END
Q360
MUTING
MPX
VCO
CUT
RL
Q353
Q354
MPX
PHASE
MPX
IN
FM/AM
OUT
IF IN
IC303 LA1832
FM IF DET/FM MPX/AM IF
IF
OUT
SD
FM MONO/ST MONO/ST
AM RF IN
AFC
IN
OUT
VR351
FM MUTE LEVEL AM
OSC
REG IN
OUT VCC
FM IF IN
FM IF
FM
X352
4.5MHz
OSC
STEREO
IC302
TC72131
PLL(TUNER)
AMIN
FMIN
FM OSC
T351
AM IF
GND
FM OSC
AM OSCAM ANT
AM RF
CD MUTE
FROM CD UNIT
T1/T2
TAPE 1
TAPE 2
Q128
L103
Q111
Q107
Q108
Q110
Q109
Q106
Q105
Q104
Q103 REC/PBREC
P.B
AC BIAS
P.B
REC/PB
HEAD
L-CH
R-CH
PB HEAD
L-CH
R-CH
ERASE
HEAD
AUX
AUX
TUNER
TAPE
CD
VO
T1/T2 H/N
RR
R
L
L
L
GRAPHIC EQUALIZER
SO301
ANTENNA
TERMINAL
AM
FM

– 15 –
CD-C440W/CP-C440W
Figure 15 BLOCK DIAGRAM (3/3)
914
11
6
13
44
6
3
16
18
1
10
1718
24
25
26
27
28
57
58
59
60
616364
65
66
23
28
5
16
18
17
1
4
3
2
36
38
37
46
17
35 34 42
43 47
9
101112
3
2
1
19 21 22
18
16
15
14
13
14 15 16 17 18
20
31
33
48
30
8
29
52
71
54
70
72
80
1
4
6
7
5
37 865721
8
9
10
11
12
13
19
21
53
54
55
24
25
26
27
28
4
5
6
7
8
6
7
4
7
1
8
6
2
3430
1
4
7
1
4
8
5
3
17
31
42
6
43
5
44
4
F821
T500mA L 250V
SW701–SW712
SW717,SW719,SW721
SW723–SW726
SW728–SW740
AC 110/127/220/
230–240V
50/60Hz
230–240V
220V
127V
SW801
VOLTAGE
SELECTOR
110V
JA901
HEADPHONES
Q998
Q997 Q999
Q996
PROT
R-IN
L-IN IC901
STK488-020
POWER AMP.
+B1
–B1
R-OUT
L-OUT
SO901
SPEAKER
TERMINAL
R-CH
GND
GND
L-CH
+
-
-
+
RELAY
PROT
Q903
Q904
MUTE
RL901
RELAY
SWITCHING
L-OUT
O
UT
C
ENTER CONT
IC453(1/2)
MODE1-5
MONO
PASS
SRS STEREO
SRS MONO
MODE
C
451
S
5250S
S
RS R-IN
L-IN
SRS A
/SRS B
SRS INH
SRS
PASS
/3D
SRS
PASS
LEVEL
CONT
Q458
~
Q460
Q463
Q466
Q467
Q468
Q469
TO CD UNIT
+B1
SRS INH
SRS B SRS A
SRS 3D
SRS PASS
DOLBY P.L
SRS
BALANCE
4CH SP
+B1
T801
POWER
TRANSFORMER
F804
T1.6A L 250V
F803
T5A L 250V
F802
T5A L 250V
T.F
KEY MATRIX
KEY0
KEY5
LED701–LED711
LED714–LED719
VDD
+B5
VSS
IC702
BU2092F
LCK
CLOCK
DATA
+B4
Q705
Q706
ZD701
SYS STOP
RESET Q704
+B6
S-MUTE
POWER
REMOCON
DI CLK DO
CE
RX701
REMOTE
SENSOR
REMOCON
+B5
TUN SD
TUN SM
TUN MUTE
CLEAR
MAIN SO
MAIN SI
MAIN SCK
MAIN STB
MAIN STB
CLEAR
MAIN SI
MAIN SO
MAIN SCK
SPE IN
+B1
MEMORY
BACK UP
+B5
VP
VP
Q701
IC701I
X0170AW
MICROCOMPUTER
VF1
(AC)
FL701
IC601
IX0171AW
C
ROCOMPUTER
TO CD UNIT
CD MUTE
+B1
+B3
CD MUTE
CD RES
CD SL–
CD SL+
CD CQCK
CD SQOUT
CD COIN
CD WRQ
CD RWC
CD PUIN
CD DRF
CD O/C SW
CD D.NO
CD U/D
SPE1-5
POWER ON/STB
SWITCHING
S-MUTE
POWER
–B1
IC502/503/504 OPE AMP.
BA4558
IC504(1/2)
Q829
Q501
Q502
+B3
+B4
+B3
+B2
–B1 –15V
IC651
BA4558
OPE AMP.
VOLTAGE
REGURATER
X-BASS
IC501
L
C75396E
O
PROCESSOR
Q828
+12V(MOTOR) Q826
Q827
VOLTAGE
REGULATOR
UN-SWITCHED
+5V
Q823
Q824
Q825
Q821
Q822
+7.3V(CD)
D801
D802–D805 VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VP VF2
(AC)
VF1
(AC)
Q801
+12V(ANALOG)
VOLTAGE
REGULATOR
SWITCHING
VOLTAGE
REGULATOR
OUT
IN R
L
R
L
VOLUME
RR
R
L
L
L
GRAPHIC EQUALIZER
L
R
OPEAMP.
BA4558

CD-C440W/CP-C440W
– 16 –
Figure 16 SCHEMATIC DIAGRAM (1/14)
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.
21
M
M
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
11
8
7
2
3
4
5
6
8
7
2
3
4
5
6
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
8
7
1
5
4
3
2
1
6
5
4
3
2
+B
+B +B
+B
+B
+B
+B
+B
8
7
6
5
4
3
2
1
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
17
18
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
11
10
9
8
7
6
5
4
3
2
1
64 63 62 61 60
59 58 57 56
55 54 53 52 51 50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32 31 30 29 28 27 26 25 24
23 22 21 20
19 18 17
12
13
14
15
16
FOCUS/TRACKING/SPIN/
SLIDE DRIVER
SERVO AMP.
+
–
+
–
+
–
+
–
–
+
–
+
+
–
+
–
+
–
+
–
+
–
–
+
+
–
–
CV+
CV–
SLOF
HFL
TES
TOFF
TGL
JP+
JP–
RFSM
RFS–
SLC
RF
REF
OR
REF
REF
REF
REF
SL+
SL–
SLD
SLEO
SPO
SP–
SPG
SPI
SP
AGND
FE–
FE
FA
FA–
FD–
GEN
GEN
GEN
FD
TO
JP
TD–
TD
TH
REF
JP
REF
TO
REF
REF
REF
REF
REF
+
+
+
+
+
++
–
–
–
–
–
–
–
–
+
REF
REF
REF
REF
REF
REF
SCI
TESI
TE
TE–
TB
F
E
FIN1
FIN2
VCC1
LDS
BHI
PHI
LF2
VR
REF1
VCC2
DRF
CE
DAT
CL
CLK
DEF
SLI
DGND
REF
LDO
RF
REF
+
–
–
–
–
+
+
+
+
–
REF
FE1
VCR
VCR VCR
VCR
TGL1
THDL
GL
THD
VCC
DEF
HFL
DRF CE
CL
SLOF
FSTA
LATOH
TOSTA
FOSTA
S.Q.R
FSTA
8/12CM
LASER
2FREQ
JP+
JP–
CV+
CV–
REF
REF
JP
REF
–
–+
+
++– –
EFBAL
FSC
FOSTA
FE1
FSC
SLOF SLOF
SLOF
JPCLO
+
FSS
TBC
NC
TE
K
B
F
1/16
CD SL
CD MOTOR PWB-E
PICKUP
IN
SLED
MOTOR
SPINDLE
MOTOR
PD
VR
LD
TR–
TR+
FO+
FO–
GND
E
K
A
F
E
B
K
2200P
1M
2200P
1M
PICKUP UNIT
ACTUATOR
TR–
FO–
FO+
TR+
LD GND
LT0H30M1
C
F
A
B
E
K
LD MON
VR
LD
GND
PD
F+
F–
T–
E
A
B
F
K
T+
TP1
HF
CD GND
GND
VREF
TR–
TR+
FO+
FO–
GND
TR–
TR+
FO–
FO+
CD_GND
CD_PUIN
CD_PUIN
SP+
SP–
SL_+
SL_–
PD
PD
VR
LD LD
SW4
M1
M2
CNP3A CNS3B
CNS3A
CNS2B CNS2A
CNS1B CNS1A
CNP1
R21 56K
R20 10K
CNP2
C3
0.1/50
C21
1/50
R43
22
Q1
KTA1266 GR
C12
330P
R17
82K
R10
82K 1
S
R40 22K
R39
22K
C40
0.33/50
C39
0.47/50
C38
0.01
C37
220/10
C35
0.1/50
C33
0.001
C30 2.2P
R33
5.6K
C34
0.033
R36
47K
R32
56K
C16
0.001
R22
6.8K
R23
1.2K
C17
0.47/50
R11
3.3K
R8
12K
C10
180P
C8
0.068
C7
0.1/50
R6
100
R5
6.8K
C6
0.033
R4
2.2K
C5
0.033
C4 0.001
R3
15K
R2
100K
C15
0.0047
R19
39K
R16
1.5K
R14 10K
R15
47K
R13
33K
C45 4.7/50
C50
0.1
C14
0.01
R26
220K
C20
0.0033
R27
220K
C19
47/16
C18
1/50
R25
1.2K
R24
10K
R42
560
R35
470
R41
4.7K
C32
27P R34
1K
IC1
LA9240M
R28
1K R29
1K
C24
1/50
R30
22K
R31
10K
C44
100/16
IC5
M56748FP
R12
15K
C13
0.1
D6
RL104A
D5
RL104A
C9
0.047
R7
1K
R9
27K
C11
0.1
R1
1K
C2
47/16
C25
0.01
C1
0.01
D
7
RL1
0

– 17 –
CD-C440W/CP-C440W
89
1011
12131415161718
192021
7
6
5
+B
+
B
M
+B
+B
+B
+B
+B
+B
4
3
2
1
+B
+B
+B
+B +B
22 11
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
9 8 7 6 5 4 3 2 1
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
48
47
43
44
45
46
42
41
40
39
38
37
36
35
34
33
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
LOADING MOTOR
DRIVER
SERVO/SIGNAL
CONTROL
1BIT DAC
MUTEL
LVDD
LCHO
LVSS
RVSS
RCHO
RVDD
4FS
DIGITAL
FILTER
MUTER
XVDD
XOUT
XIN
XVSS
EFLG
SBSY
PW
µ-COM
INTERFACE
SQOUT
TEST11
/RES
/CQCK
COIN
RWC
WRQ
FSX
SUB-CODE
X-TAL
GENERATOR
2KX8
RAM
VCO
CLOCK
OSC
CONTROL
ERROR
COERECT
FLAG
CONTROL
HLF
TES
TEST4
TEST3
DIGITAL
OUT
EXTERNAL
OUTPUT
CONTROL
LEVEL
SLICE EFM DEMODULATE
SYNC-DETECT
CLV
DIGITAL
SERVO
SERVO
COMMAND
CD_SL– CD_SL+
CD_DRF
CD_RES
CD_RWC CD_WRQ CD_CQCK CD_COOUT CD_SQIN
TO MAIN SECTION
TO DECK SECTION
TO MAIN
SECTION
M_12V
CD_GND
CD_7V
REGULATOR
SWITCHING
DRIVER
TO MAIN/CD
SECTION
TO MAIN
SECTION
1
CD_GND
G
ND
C
D_PUIN
D_GND
SOLENOID
DISC NO
MECHA UP
TRAY MOTOR
PWB-G
T/T
UP DOWN
+
–
OPEN
CLOSE
MAIN PWB-A1(1/3)
TO DECK
SECTION
TO MAIN
SECTION
TO MAIN
SECTION
CD_MUT
CD_R-CH
CD_L-CH
A_GND
CD_LD_M+
32
1
+7.3V
32
1
SPEED_HIGH/LO
CD_4R3V
D_GND
CD_D_NO
D_GND
D_GND
M+
M–
SOL
16M
4M
TEST5
/CS
TEST1
SFSY
SBCK
NC
DOUT
C2F
EMPH
CONT5 CONT4 CONT3 CONT2 CONT1
VDD
FSEQ
PCK
JP_
JP+
TGL
TOFF
DEF1
PDO
VVSS
ISET
VVDD
FR
VSS
EFMO
EFMIN
TEST2
CLV+
CLV_
V/P
TA1
GND(D)
MECHA UP
GND(D)
DISC NO.
OPEN CLOSE
GND(D)
M–
M+
GND(M)
SOL
+5V
CD_LD_M–
CD_D_NO CD_TRAYEND CD_U/D
P20 1-B,C
P23 12-G
P20 3-H
P21 7-H
P23 12-B
P21 8-H
P21 9-A
P23 12-E
P21 9-A
P20 1-C
R38
33K
C31
0.0027
R37
47K
C90
0.01
CNS5
SW3
SW2
SW1
M3
SOLM2
BIM05
CNS10
R73
2.7K
C67
10/50
R74
2.7K
C68
10/50
R61
220
XL10
D8
1SS133
D9
1SS133
C92
0.022
CNP10
R86 1K
Q93
KRC102 M
C21
1/50
D2
1SS133
R60
1K
2
.
2P
3
K
C34
0.033
R36
47K
R32
56K
C45
4.7/50
C50
0.1
R87 1K R88 1K
IC2
LC78623E
R58
680
C41
0.047
C42
0.047
R57
27K
R56
1.2K
R35
470
C53
220P
C57 100P
C55 100P
C54 100P
C32
27P R34
1K
C59
0.022
R18
3.3M
D91
1SS133
R96
10K
Q91
KTA1271 Y
ZD81 MTZJ5.6B
R81
220
R84
22
R92
2.2K
D6
RL104A
R82
150L1
0.82µH
C51
0.022
R98
6.8K
C91
47/16
R93 3.9
IC91
TA7291S
C94
47/16
Q94
KRC107 M
R94
6.8K
R97
3.9K
D5
RL104A
C56 100P
C58 100P
C52
100/16
C81
100/16
Q81
KTC3203 Y
C43
330/6.3
R76
390
R75
390 C69
220P
C70
220P R80
4.7K
R79
4.7K
Q83
KTC3199 GR
Q84
KTC3199 GR
C82
1/50
R77 1K
R46 1K
R45 1K
R47 1K
C22
0.01
R48 1K
R78 1K
D7
RL104A
C46
0.022 R49
10K
CD SIGNAL
Figure 17 SCHEMATIC DIAGRAM (2/14)
78 9 10 11 12
• The numbers 1 to 12 are waveform numbers shown in page 37.

CD-C440W/CP-C440W
– 18 –
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.
Figure 18 SCHEMATIC DIAGRAM (3/14)
MAIN_SCK
MAIN_STB
+B +B
41 40 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
98765 21
+B
+B
4142
64 63
80
73
74
75
76
77
78
79
72
71
70
69
68
67
66
65
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 4142
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
242322212019181716151413121110
987654321
(CH)
SYSTEM MICROCOMPUTER
–28.4V 4.8V
–28.4V
DISPLAY PWB-C1
–B
–B
–B
WT601 TO MAI
N
MAIN STB
MAIN_SCK
MAIN_SI
MAIN_SO
CLEAR
CE
CL DI DO CLEAR D_5V D_GND M_12V POWER VF2 –VP VF1 F MUTE
13
7
1
CLK
DO
DI
CE
TUN_MUTE
TUN_SD
TUN_SM
TO MAIN PWB
WT502
F F
F F G11 G10 G09 G08 G07 G06 G05 G04 G03 G02 G01 S01 S02 S03 S04 S05 S06 S07 S08 S09 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22
KEY-5
KEY-4
TUN_SM TUN_SD TUN_MUTE
8G
9G
P1
10G
11G
P2
P3
P4
P5
VLOAD
P11
P6
P7
P8
P9
P10
P14 P15 P16 P17 P18 P19 P20 P21 P22
VDD
VSS
REMOCON
SYS STOP
POWER
F_MUTE
P32/TO2 P31/TO1
IC P01/INTP1 P02/INTP2 P03/INTP3/CI0 P71 P72 P70 P00/INTP0/TI0
P33/
TI1
P34/TI2
P35/PCL
P36/BUZ
VSS
XT2
P04/XT1
AVREF
AVDD
P10/ANI0
P11/ANI1
P12/
ANI2
P13/
ANI3
P16/ANI6 P15/ANI5 P14/ANI4 P17/ANI7
AVSS
P74
RESET
P24/BUSY
P25/SI0/SB0
P27/SCK0
P23/STB
P22/SCK1
P21/SO1
P20/SI1
P90/FIP2 P80/FIP0 P81/FIP1 P91/FIP3 P92/FIP4 P93/FIP5 P94/FIP6
P113/
FIP21
P114/ FIP22 P115/ FIP23
P127/ FIP33 P116/ FIP24 P117/ FIP25 P120/ FIP26 P121/ FIP27 P122/ FIP28 P123/ FIP29 P124/ FIP30 P125/ FIP31 P126/ FIP32
VLOAD
P97/
FIP9
P96/
FIP8
P95/
FIP7
P105/
FIP15
P104/
FIP14
P102/
FIP12
P100/
FIP10
P101/
FIP11
P103/
FIP13
P112/
FIP20
P110/
FIP18
P106/
FIP16
P107/
FIP17
P111/
FIP19
VDD
P26/SO0/SB1
P73
P37
P30/TO0 VDD
CLEAR
MAIN_SO
MAIN_SI
–B
–B
DI
CE
CL
X1
X2
VSS
AVREF
AVDD
KEY-0
KEY-1
KEY-2
KEY-3
4G 3G 2G 1G 7G 6G 5G
XT2
P04
CLEAR RESET DATA COM CLK STB CE DI DO CLK
P12
P13
P21 7-A
P21
7
FW702
FL701
R728
10K
R729 1K R727 1K R726 1K
R708 1K
IC701
IX0170AW
R
7
R
R
R
7
R
7
R
C702 220/6.3 C701 0.022
R713 1K
R
7
R
7
C704
18P
R
7
R710 1K R701 1K R704 1K R709 1K
R712 1K
R706 1K R707 1K R702 1K R703 1K R711 100 R705 1K
R778
100K
Q701
KTC3199 GR
R776
1K
R
R
R
R777
33
C716
47/16
C712
1/50 C713
1/50

– 19 –
CD-C440W/CP-C440W
Figure 19 SCHEMATIC DIAGRAM (4/14)
78 9 10 11 12
Q7
+B +B +B
+B +B
+B
+B
+B
+B
18 17 16 15 14 13 12 11 10
987654321
+B
321
+B
+B
+B
+B +B +B
+B
+B
+B
4142
5
049484746454443 4142
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
242322212019181716
1
5
(CH)
(CH)
INPUT/OUTPUT
EXPANDER
PUTER
0V
0V
0V
0V
4.8V
0V
5V 0V0V
–B
WT601 TO MAIN PWB
MAIN_STB
MAIN_SCK
MAIN_SI
MAIN_SO
CLEAR
CE CL DI DO CLEAR D_5V D_GND M_12V POWER VF2 –VP VF1 F MUTE
13 1
7
U
_
S
O
MAIN PWB
LED714~LED719:
DISPLAY PWB-C2
6
1
DISK 1
DISK 2DISK 3
DISK
SKIP
OPEN
/CLOSE
DISC 1
DISC 2
DISC 3
61
TIMER
/SLEEP
CLOCK
ON/
STAND-BY
REV REW
VOLUME
DOWN EQ.
/DEMO
REVERSE
3D
SURROUND
VOLUME
UP X-BASS STOP FWD FF
REC/
PAUSE
DOLBY
LOGIC/
BYPASS
CENTER
MODE/
NORMAL
CENTER
MODE/
PHANTOM
TAPE VIDEO
TUNER
/BAND
TUNING
UP/TIME
MEMORY
/SET TUNING
DOWN
EDIT
HIGH
EDIT
NORMAL
CD
NORMAL
PASS PASS
MONO
PHANTOM
DOLBY
SRS ON
SRS
STEREO
REV
REW
STOP
FF
PLAY
Q5 Q6 Q7 Q8 Q9
Q10 Q11
OE
VDD
VSS DATA CLOCK
LCK
Q0 Q1 Q2 Q3 Q4
32
1
KEY-5
KEY-4
TUN_SM TUN_SD TUN_MUTE
VSS
REMOCON
SYS STOP
POWER
F_MUTE
P32/TO2 P31/TO1
IC P01/INTP1 P02/INTP2 P03/INTP3/CI0
P71
P72 P00/INTP0/TI0
P33/
TI1
P34/TI2
P35/PCL
P36/BUZ
VSS
XT2
P04/XT1
AVREF
AVDD
P10/ANI0
P11/ANI1
P12/
ANI2
P13/
ANI3
P16/ANI6 P15/ANI5 P14/ANI4 P17/ANI7
AVSS
P74
RESET
P21/SO1
P20/SI1
P73
P37
P30/TO0
CLEAR
MAIN_SO
MAIN
_
SI
DI
CE
CL
X1
X2
VSS
AVREF
AVDD
KEY-0
KEY-1
KEY-2
KEY-3
XT2
P04
CLEAR RESET DATA
CO
5V BACK UP
Q7 Q6 Q5
Q5 Q6
P21 7-A
P21 7-H
C729 47/16
R749
10K
FW703
FW702
SW707SW708
RD07
12K SW706
RD05
3.9K
SW705
RD04
2.2K
SW704
RD06
5.6K
LED716
LED714
LED718
LED717
LED715
LMKD515B
LED719
FW701
SW735
RD30
1.2K
RD29
1K SW734SW733
RD22
1K SW726
RD23
1.2K
SW725 RD24
1.8K
LED711
5N4YTN52
LED709
5N4YTN52
LED707
5N4YTN52
LED706
5N4YTN52
LED708
5N4YTN52
LED710
5N4YTN52
R742
820
R743
820
R744
820
R745
1K
D708
1SS133
C708
0.01
D706
1SS133
R766
100K
L701
100µH
R728
10K
R729 1K R727 1K R726 1K
RD36
15K
R708 1K
R718 1K
R722 1K
R720 1K
R717 1K
R716 1K
R721 1K
RD35
12K
RD32
2.2K RD33 3.9K SW739
SW737
RD34
5.6K
RD20
5.6K
SW701
SW711
SW719
RD16
1.2K
SW710
SW730
SW729
SW728
RD25
2.2K RD26
3.9K
RD02
1.2K
SW721 RD21
12K
RD11
2.2K
RD17
1.8K
RD15
1K
RD08
1K
SW709
C702 220/6.3 C701 0.022
R713 1K
R714 1K
R715 1K
C704
18P
C703
15P
XL701
R719 1K
R710 1K R709 1K
R712 1K
R707 1K
R711 100
RD03
1.8K
SW703
RD14
12K
RD28
12K SW732
SW731
SW738 SW740
RD27
5.6K
RD13
5.6K
RD09
1.2K RD10
1.8K
RD18
2.2K RD19
3.9K SW724
SW723
RD01
1K SW702
SW717
RD12
3.9K
SW712
RD31
1.8K SW736
R736 8.2K R735 8.2K R733 8.2K R732 8.2K
R731
8.2K
R734 8.2K
R741 1K
R740 1K
R739 1K
R737 1K
R772
1K
R771
100
Q706
KTC3199 GR
R765
3.3K
D705
1SS133 R773
27
C709
100/6.3
Q704
KRC102 M
R774
150
D709
1SS133
D707
1SS133
ZD701
MTZJ3.9B
C710
220/6.3
LED701 5N4GTN52
LED702 5N4GTN52
LED703 5N4GTN52
LED704 5N4GTN52
LED705 5N4GTN52
IC702
BU2092F
R770
1K
R768
10K
R767
82
Q705
KTC3199 GR
R769
10K RX701
R775
2.2K
C715
0.022
R738 1K
R748
820
R747
820 R746
820
R763
1K
C706
0.01
C707
3.3/50
R781 10K
R780 1.8K
R779 10K
7
77
3
C713
1/50
C730 0.022

CD-C440W/CP-C440W
– 20 –
Figure 20 SCHEMATIC DIAGRAM (5/14)
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.
+B
36383710
98
+B
+B
7
+B +B
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
46 45 44 43 48 41 42 55 54 53 52 51 56 49 50 57 64 63 62 61 60 58 59
16 14 15 13 12 11 10
23 24 21 22 20
19 18 17
9 8 7 6 5 4 3 2 1
4321
29304043421821
11
14
13
17
16
15
19
20
12
3
22
26
23
32
24
25
44
39
11 10 987654321
SYSTEM MICROCOMPUTER
CD SIGNAL
RECORD SIGNAL
PLAYBACK SIGNAL
FM SIGNAL
TO SRS PWB
CNS501
R-CH IN
L-CH IN
R-CH OUT
L-CH OUT
TO CD
SECTION TO DECK SECTION
MAIN_STB
MAIN_SCK
CLEAR
MAIN_SI
MAIN_SO
RUN PULSE F.A.S.
D_GND
TO DECK SECTION TO DECK SECTION TO CD SECTION
MAIN PWB-A1(2/3)
SPE5
MIC
D_GND
TA_MOT_H/L SOLENOID TA_MOT_SW CD_U/D CD_D_NO CD_TRAYEND
HI BSPEED
REC_MUTE REC MUTE
CD MUT
TO DISPL
A
FW7
0
TO DECK SECTION
CLK
DO
DI
CE
TUN MUTE
TO CD/DE
SECTIO
N
SPE4
SPE3
SPE2
SPE1
CAM SW
D_GND
CD D.NO. SW
TA MOT SW
TA SOL
F/R SPEED
VSS
CD U/D SW
CD O/C SW
VDD
RLY DRV
POWER
CLK
DATA
ENEBLE
SRS A SRS B
SRS INH
SPAN 9K
SRS PASS
SRS 3D
SP_DET
CD SL+
CD SL– CD RES
SYS MUTE
P.B.MUTE
CD SQOUT CD COIN CD CQCK VDD CD RWC CD WRQ
GND
T1/T2
BIAS
REC RVS
REC FWD
VLOAD
P33/
TI1
P12/
ANI2
P10/ANI0
AVDD
AVREF
P04/XT1
P74 P73
AVSS
RESET
P26/SO0/SB1
P25/SI0/SB0
P24/BUSY
P23/STB
P126/ FIP32
X1
P124/ FIP30 P125/ FIP31
P17/ANI7 P16/ANI6 P15/ANI5 P14/ANI4
P101/
FIP11
P103/
FIP13
P102/
FIP12
P100/
FIP10
P31/TO1 P30/TO0
P03/INTP3/CI0
P113/
FIP21
P112/
FIP20
P110/
FIP18
P106/
FIP16
P116/ FIP24 P117/ FIP25
P114/ FIP22
P115/ FIP23
P105/
FIP15
P104/
FIP14
P02/INTP2
P71 P70
P21/SO1
P20/SI1
P00/INTP0/TI0
P01/INTP1
P122/ FIP28 P123/ FIP29
P91/FIP3 P92/FIP4 P93/FIP5 P94/FIP6
P22/SCK1
VDD
P72
IC
XT2
VSS
X2
P37
P36/BUZ
P35/PCL
P34/TI2
P32/TO2
P11/ANI1
P90/FIP2
VDD
P27/SCK0
P80/FIP0 P81/FIP1
P120/ FIP26 P121/ FIP27
P107/
FIP17
P111/
FIP19
P13/
ANI3
P127/ FIP33
P97/
FIP9
P96/
FIP8
P95/
FIP7
TO CD SECTION TO DECK SECTION
REC_L-CH
REC_R-CH
CD_DRF
F.A.S.
RUN PULSE
CAM SW
CD_PUIN
D_GND
REC RVS
REC FWD
HI_SPEED
REC/PB
CD_MUT
CD_SL–
CD_SL+
CD_RES
CD_COOUT
CD_SQIN
CD_CQCK
CD_RWC
CD_WRQ
D_GND
SRS_PASS SRS/3D SRS_A SRS_INH SRS_B
SRS_INH SRS_A SRS/3D A_12V SRS_PASS SRS_B L_IN R_IN R_OUT L_OUT
A_12V
A_GND
PASS
SRS/3D
SRS_A SRS_B
SRS_INH
REC/P.B.
47
P28 4-H
P17 10-H P23 12-B
P23 12-D P23 12-D P17 7-H TO DECK SECTION
P23 12-G
P17 7-H P23 12-C P23 12-D
P18 5
-
P17 12-
E
P23 12-
B
R456
3.9K C452
4.7/50
CNP501
C603 150P C605 150P C604 150P
C606 150P C607 150P
R684
10K
D602
1SS133
R635
10K
R634
10K
R640
10K
R656
1K
R667
1K
R671
1K
R602
1K
WT502
R663
1K
R642 1K R643 1K R649 1K R650 1K
IC601
IX0171AW
R646 1K
R628
1K
R645 1K R654 1K R637 1K R647 1K R651 1K R638 1K R653 1K R652 1K
R219
1K
R218
1K
R609 1K
R611 1K
R612 1K
R610 1K
R608 1K
R604 1K
R606 1K
R607 1K
R605 1K
R621 1K R622 1K
R616 1K R618 1K R615 1K R614 1K R613 1K R617 1K
R620 1K
R624 1K
R625 1K
R626 1K
R627 1K
R636 1K
R655
1K
R661 1K
R662 12K
R658 1K
R659 1K
R660 1K
R657 1K
R623
1K
R633 1K
L601
100µH
D601
1SS133
R679
10K
R641
1K
C601
220/10
C602
0.022
R632
1K
R55
10K
R680
10K
R673
10K R675
10K
R676
47K
R674
10K
R672
10K
D818
1SS133
D817
1SS133
D820
1SS133
D819
1SS133
D8
3
1SS
1
C451
4.7/50
R455
3.9K