Sharp CD-C449W,CD-K449W,CP-C449,CP-K449W Service Manual

– 1 –

CD-C449W/K449W

KARAOKECIRCUIT

No.S8875CDC449W/

CONTENTS

Page

SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2

SPECIFICATIONS ............................................................................................................................................................. 3

VOLTAGE SELECTION......................................................................................................................................................3

NAMES OF PARTS ........................................................................................................................................................... 4

OPERATION MANUAL ...................................................................................................................................................... 7

DISASSEMBLY.................................................................................................................................................................. 9

REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 12

ADJUSTMENT ................................................................................................................................................................. 13

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 17

TYPES OF TRANSISTOR AND LED................................................................................................................................17

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 18

BLOCK DIAGRAM ........................................................................................................................................................... 19

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 22

TROUBLESHOOTING ..................................................................................................................................................... 46

FUNCTION TABLE OF IC................................................................................................................................................ 50

FL DISPLAY..................................................................................................................................................................... 57

REPLACEMENT PARTS LIST/EXPLODED VIEW

CD-C449W
CD-K449W

• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.

SERVICE MANUAL

This document has been published to be used
for after sales service only.
The contents are subject to change without notice.

SHARP CORPORATION

● SRS, the SRS Logo (●) and the Sound Retrieval System
are registered trademarks of SRS Labs, Inc. in the United
States.

CD-K449W

SECTION

CD-C449W

CD-C449W mini component system consisting of
CD-C449W mini component system and
CP-C449 speaker system.
CD-K449W mini component system consisting of
CD-K449W mini component system and
CP-C449 speaker system.

CD-C449W/K449W

– 2 –

SAFETY PRECAUTION FOR SERVICE MANUAL

WARNINGS

THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER
COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS
IMPORTANT THAT THE FOLLOWING PRECAUTIONS ARE OBSERVED DURING SERVICING TO PROTECT YOUR EYES
AGAINST EXPOSURE TO THE LASER BEAM.

1-WHEN THE CABINET IS REMOVED, THE POWER IS TURNED ON WITDOUT A COMPACT DISC IN POSITION AND THE

PICK-UP IS ON THE OUTER EDGE THE LASER WILL LIGHT FOR SEVERAL SECONDS TO DETECT A DISC. DO NOT
LOOK INTO THE PICK-UP LENS.

2-THE LASER POWER OUTPUT OF THE PICK-UP UNIT AND REPLACEMENT SERVICE PARTS ARE ALL FACTORY

PRE-SET BEFORE SHIPMENT.

DO NOT ATTEMPT TO RE-ADJUST THE LASER PICK-UP UNIT DURING REPLACEMENT OR SERVICING.
3-UNDER NO CIRCUMSTANCES STARE INTO THE PICK-UP LENS AT ANY TIME.
4-CAUTION-USE OF CONTROLS OR ADJUSTMENTS, OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE

SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

CAUTION

● This Mini Component System is classified as a CLASS
1 LASER product.

● The CLASS 1 LASER PRODUCT label is located on the
rear cover.

● Use of controls, adjustments or performance of proce­dures other than those specified herein may result in
hazardous radiation exposure.

As the laser beam used in this compact disc player is
harmful to the eyes, do not attempt to disassemble the
cabinet. Refer servicing to qualified personnel only.

Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW

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.

VARO ! Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen.
VARNING! Osynlig laserstralning när denna del är öppnad och spärren är urkopplad. Betrakta ej strälen.

– 3 –

CD-C449W/K449W

● General

Power source: AC 110/127/220/230-240 V,

50/60 Hz

Power consumption: 120 W
Dimensions: Width; 270 mm (10-5/8")

Height; 316 mm (12-1/2")
Depth; 343 mm (13-1/2")

Weight: 9.2 kg (20.3 lbs.)

● Amplifier section

Output power: PMPO; 1200 W

MPO; 240 W (120 W + 120 W)
(10 % T.H.D.)
RMS; 150 W (75 W + 75 W)
(10 % T.H.D.)

Output terminals: Speakers; 8 ohms

Headphones; 16-50 ohms
(recommended; 32 ohms)
CD digital output (optical)

Input terminals: Video/Auxiliary (audio signal)

1/2; 500 mV/47 kohms
Microphone 1/2; 1 mV/4.7 kohms
(CD-K449W only)

● Tuner section

Frequency range: FM; 88 - 108 MHz

SW2; 9.5 - 21.85 MHz
SW1; 3.2 - 7.3 MHz
MW; 531 - 1,602 kHz

● Cassette deck section

Frequency response: 50-14,000 Hz (Normal tape)
Signal/noise ratio: 55 dB (TAPE 1, playback)

50 dB (TAPE 2, recording/
playback)

Wow and flutter: 0.15 % (WRMS)

● 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)

● Speaker section

Type: 3-way type [130 mm (5-1/8")

woofer, 50 mm (2") tweeter and
super tweeter]

Maximum input
power: 150 W
Impedance: 8 ohms
Dimensions: Width; 220 mm (8-11/16")

Height; 316 mm (12-1/2")
Depth; 284 mm (11-3/16")

Weight: 3.6 kg (7.9 lbs.)/each

SPECIFICATIONS

QACCA0001AW00

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 adjustment screw.

Figure 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR

QACCE0008AW00

AQCCJ0003AW00

CD-C449W/K449W

CP-C449

– 3 –

CD-C449W/K449W

● General

Power source: AC 110/127/220/230-240 V,

50/60 Hz

Power consumption: 120 W
Dimensions: Width; 270 mm (10-5/8")

Height; 316 mm (12-1/2")
Depth; 343 mm (13-1/2")

Weight: 9.2 kg (20.3 lbs.)

● Amplifier section

Output power: PMPO; 1200 W

MPO; 240 W (120 W + 120 W)
(10 % T.H.D.)
RMS; 150 W (75 W + 75 W)
(10 % T.H.D.)

Output terminals: Speakers; 8 ohms

Headphones; 16-50 ohms
(recommended; 32 ohms)
CD digital output (optical)

Input terminals: Video/Auxiliary (audio signal)

1/2; 500 mV/47 kohms
Microphone 1/2; 1 mV/4.7 kohms
(CD-K449W only)

● Tuner section

Frequency range: FM; 88 - 108 MHz

SW2; 9.5 - 21.85 MHz
SW1; 3.2 - 7.3 MHz
MW; 531 - 1,602 kHz

● Cassette deck section

Frequency response: 50-14,000 Hz (Normal tape)
Signal/noise ratio: 55 dB (TAPE 1, playback)

50 dB (TAPE 2, recording/
playback)

Wow and flutter: 0.15 % (WRMS)

● 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)

● Speaker section

Type: 3-way type [130 mm (5-1/8")

woofer, 50 mm (2") tweeter and
super tweeter]

Maximum input
power: 150 W
Impedance: 8 ohms
Dimensions: Width; 220 mm (8-11/16")

Height; 316 mm (12-1/2")
Depth; 284 mm (11-3/16")

Weight: 3.6 kg (7.9 lbs.)/each

SPECIFICATIONS

QACCA0001AW00

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 adjustment screw.

Figure 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR

QACCE0008AW00

AQCCJ0003AW00

CD-C449W/K449W

CP-C449

CD-C449W/K449W

– 4 –

NAMES OF PARTS

CD-C449W/K449W

■ Front panel

11. (CD) Disc Tray

12. (CD) Disc Number Select Buttons

13. (CD) Disc Skip Button

14. (CD) Open/Close Button

15. (CD) Disc Number Indicators

16. SRS Indicator

17. (TAPE 2) Direction Indicators

18. (TAPE 2) Reverse Mode Indicator

19. (CD) Play Indicator

10. (CD) Repeat Play Indicator

11. (CD) Pause Indicator

12. (TAPE 2) Record Indicator

13. Timer Record Indicator

14. Timer Play Indicator

15. Sleep Indicator

16. Extra Bass Indicator

17. (CD) Random Play Indicator

18. (CD/TUNER) Memory Indicator

19. (TUNER) FM Stereo Indicator

20. (TUNER) FM Stereo Mode Indicator

21. Karaoke Indicator (CD-K449W Only)

22. Spectrum Analyzer

23. Function Selector Buttons

24. Equalizer Mode Selector Buttons

25. Extra Bass Button

26. Volume Control

27. On/Stand-by Button

28. Headphone Socket

29. Karaoke Maker Switch (CD-K449W Only)

30. Microphone Sockets (CD-K449W Only)

31. Microphone Level Controls (CD-K449W Only)

32. Digital Echo Control (CD-K449W Only)

33. 3D Surround/Demo Mode Button

34. Clock Button

35. Sleep Button

36. (TAPE 2) Reverse Mode Button

37. (CD) Pause Button

38. Jog Dial

39. (CD/TAPE) Stop Button

40. (TAPE) Record Pause Button

41. Balance Control Buttons

42. Timer Button

43. Memory Button

44. (CD) Clear Button

45. (CD) Track Down/Review Button

3 (TAPE 2) Fast Wind Button
3 (TUNER) Tuning Down Button

46. (TAPE 2) Reverse Play Button

47. (CD) Play/Repeat Button

3 (TAPE 1) Play Button
3 (TAPE 2) Forward Play Button

48. (CD) Track Up/Cue Button

3 (TAPE 2) Fast Wind Button
3 (TUNER) Tuning Up Button

49. Editing Speed Selector Buttons

1

342

13

18

5

67

8

9

10

11

12

19 20

24

23

25 26

27 28 29

30 31 32

33

34 35 36 37 38 39 40 41

42 43 44 45 46 47 48 49

1415 16

17

21

22

– 5 –

CD-C449W/K449W

11.

(TAPE 1) Cassette Compartment

12.

(TAPE 2) Cassette Compartment

■ Rear panel

11.

CD Digital Output Socket

12.

Video/Auxiliary (Audio Signal) Input Sockets

13.

Span Selector Switch

14.

FM 75 Ohms Aerial Terminal

15.

Aerial Earth Terminal

16.

SW1/SW2/MW Aerial Terminal

17.

AC Voltage Selector

18.

AC Power Lead

19.

Speaker Terminals

■ Speaker section

11.

Super Tweeter

12.

Tweeter

13.

Woofer

14.

Bass Reflex Ducts

15.

Speaker Terminals

1

2

7

8

1

23

4
5

6

9

1
2

3
4

5

CP-C449

CD-C449W/K449W

– 6 –

■ Remote control

11.

Remote Control Transmitter LED

● CD control section

12.

Disc Number Select Buttons

13.

Track Down/Review Button

14.

Track Up/Cue Button

15.

Disc Skip Button

16.

Play/Repeat Button

17.

Stop Button

18.

Memory Button

19.

Clear Button

10.

Random Button

11.

Pause Button

● Tuner control section

12.

Preset Up/Down Buttons

● Tape control section

13.

(TAPE 2) Record Pause Button

14.

(TAPE 2) Reverse Play Button

15.

(TAPE 1) Play Button

3

(TAPE 2) Forward Play Button

16.

(TAPE 1/2) Stop Button

17.

(TAPE 2) Fast Wind Buttons

● Common section

18.

3D Surround Pass Button

19.

Equalizer Mode Button

20.

Function Selector Buttons

21.

Balance Control Buttons

22.

On/Stand-by Button

23.

Dimmer Button

24.

3D Surround Mode Button

25.

Extra Bass Button

26.

Volume Up/Down Buttons

1

2
3

4

10

13

89 11

5
6
7

15

16

17

24
25

20

21

22

23

12

14
18
19

26

– 7 –

CD-C449W/K449W

OPERATION MANUAL

SETTING THE CLOCK

1

Press the ON/STAND-BY button to enter the stand-by mode.

2

Press the CLOCK button.

3

Within 5 seconds, press the MEMORY button.

4

Turn the jog dial to select the time display mode.
"0:00" → The 24-hour disp lay will ap pear.

(0:00 - 23:59)
"AM 12:00" → The 12-hour display will appear.
(AM or PM 12:00 - 11:59)
"AM 0: 00" → The 12-h our display w ill appear.
(AM or PM 0:00 - 11:59)

● Note that this can only be set when the unit is first installed
or it has been reset (see page 28).

5

Press the MEMORY button.

6

Adjust the hour by turning the jog dial.

● When the jog dial is turned one click clockwise, the time will
increase by 1 hour. When it is turned one click anti-clockwise,
the time will decrease by 1 hour.
Keep turning the jog dial to change the time continuously.

● When the 12-hour display is selected, "AM" will change auto­matically to "PM".

7

Press the MEMORY button.

8

Adjust the minutes by turning the jog dial.

● When the jog dial is turned one click clockwise, the time will
increase by 1 minute. When it is turned one click anti-clock­wise, the time will decrease by 1 minute.
Keep turning the jog dial to change the time continuously.

● The hour setting will not advance even if minutes advance
from "59" to "00".

9

Press the MEMORY 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 unit is in the stand-by mode:

①

Press the MEMORY button.

②

Perform steps 6 - 9 above.

When the unit is on:

①

Press the CLOCK button.

②

Within 5 seconds, press the MEMORY button.

③

Perform steps 6 - 9 above.

To see the time display:

Press the CLOCK button.

● The time display will appear for about 5 seconds.

To change the time display mode:

①

Perform steps 1 - 2 in the section "RESETTING THE MICRO­COMPUTER", on page 28.

②

Perform steps 1 - 9 above.

In this example, the clock is set for the 24-hour
(0:00) system.

Jog dial

ON/STAND-BY

CLOCK

MEMORY

TUNING
( )

0:00 AM 12:00 AM 0:00

2

3

4

5

6

7

8

9

CD-C449W/K449W

– 8 –

■

FM/MW interval (span)

The International Telecommunication Union (ITU) has estab-

lished that member countries should maintain either a 10 kHz or

a 9 kHz interval between broadcasting frequencies of any MW

station. The illustration shows the 9 kHz interval zones (regions

1 and 3), and the 10 kHz interval zone (region 2).

Before using the unit, set the SPAN SELECTOR switch (on the

rear panel) to MW tuning interval (span) of your area.

To change the tuning zone:

1

Press the ON/STAND-BY button to enter the stand-by mode.

2

Set the SPAN SELECTOR switch to "50/9" for 9 kHz MW

interval (50 kHz FM interval), and "100/10" for 10 kHz MW

interval (100 kHz FM interval).

3

Press the ON/STAND-BY button whilst holding down the

button and the FLAT button.

Caution:

● The operation explained above will erase all data stored in

memory including clock and timer settings, and tuner and CD

presets.

FM/MW

(kHz)

50/9

100/10

SPAN

SELECTOR

RESETTING THE MICROCOMPUTER

Reset the microcomputer under the following conditions:

● To erase all of the stored memory contents (clock and timer

settings, and tuner and CD presets).

● If the display is not correct.

● If the operation is not correct.

1

Press the ON/STAND-BY button to enter the stand-by mode.

2

Press the ON/STAND-BY button whilst holding down the

button and the FLAT button.

Caution:

● The operation explained above will erase all data stored in

memory including clock and timer settings, and tuner and CD

presets.

ON/STAND-BY

FLAT

(Continued)

■

Remote control

● When inserting or removing the batteries, push them towards

the battery terminal.

● Installing the batteries incorrectly may cause the unit to mal-

function.

Precautions for battery use:

● Insert the batteries according to the direction indicated in the

battery compartment.

● Replace all old batteries with new ones at the same time.

● Do not mix old and new batteries.

● Remove the batteries if they are weak or if the unit will not be

used for long periods of time. This will prevent potential dam-

age due to battery leakage.

Caution:

Do not use rechargeable batteries (nickel-cadmium battery, etc.).

Notes concerning use:

● Replace the batteries if the operating distance is reduced or if

the operation 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 in-

terfere with operation. Change the lighting or the direction of

the unit.

● Keep the remote control away from moisture, excessive heat,

shock, and vibrations.

+

-

-

+

15

15

● 2 "AA" size bat-

teries (UM/SUM-

3, R6, HP-7 or

similar)

0.2 m - 6 m

(8" - 20')

– 9 –

CD-C449W/K449W

1 Top Cabinet 1. Screw ..................... (A1) x4 9-1

2 Side Panel 1. Screw ..................... (B1) x8 9-1

(Left/right)

3 CD Player Unit/ 1. Turn on the power supply, 9-2

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) x3

4 Tuner PWB 1. Socket .................... (D1) x1 10-1

2. Screw ..................... (D2) x5

5 Rear Panel 1. Screw ..................... (E1) x11 9-2

................................... 10-1

6 Main PWB 1. Flat cable ............... (F1) x2 10-1

2. Flat wire .................

(F2) x3

3. Socket...................... (F3) x3

4. Screw....................... (F4) x3

7

Karaoke PWB

1. Screw ..................... (G1) x2 10-2

(CD-K449W only)

8 Front Panel 1. Flat wire ................. (H1) x1 10-2

2. Screw...................... (H2) x2

9

Power Amp. PWB

1. Socket .................... (J1) x2 10-2

2. Screw ..................... (J2) x6

10

Power Supply PWB

1. Screw ..................... (K1) x6 10-3

11 Display PWB 1. Knob....................... (L1) x2 10-4

2. Nut.......................... (L2) x1

3. Screw ..................... (L3)x12

12 CD Switch PWB 1. Screw ..................... (M1) x3 10-4

13

Headphones PWB

1. Screw ..................... (N1) x1 10-4

14 Tape Mechanism 1. Screw ..................... (P1) x6 10-4

15 Turntable 1. Screw ..................... (Q1) x1 10-5

2. Cover ..................... (Q2) x1

16 Disc Tlay 1. Screw ..................... (R1) x2 10-5

2. Guide ..................... (R2) x2

17 CD Servo PWB 1. Screw ..................... (S1) x1 10-6

(Note2) 2. Socket .................... (S2) x4

18 CD Changer 1. Screw..................... (T1) x4 11-1

Mechanism

19 CD Mechanism 1. Screw ..................... (U1) x1 11-1

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 to
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.

Figure 9-2

Figure 9-3

CD-C449W/K449W

STEP REMOVAL

PROCEDURE

FIGURE

Figure 9-1

CD-C477W/K449W

LOCK
LEVER

CD Tray Cover

CD Player
Unit

( E1 ) x10
ø3 x8mm

( C3 ) x1
ø3 x8mm

Hook
( C1) x3

( C2 ) x1

( C4 ) x2

( C4 ) x1

Rear Panel

Main PWB

Front Panel

1

1

2

Tuner PWB

Pull

(C2) x1

( B1 ) x2
ø3 x8mm

( B1 ) x4
ø3 x8mm

( B1 ) x2
ø3 x8mm

Top Cabinet

Side Panel
(Right)

Rear Panel

Side Panel
(Left)

( A1 ) x2
ø3 x12mm

( A1 ) x2
ø3 x12mm

Note 1:

How to open the changer manually. (Fig. 10-3)

1. 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.

2. After removing the connector for the optical pickup fromthe
connector wrap the conductive aluminium foil around the
front end of connector so as to protect the optical pickup
from electrostatic damage.

CD-C449W/K449W

– 10 –

Figure 10-1

Figure 10-2

Figure 10-3

Figure 10-4

Figure 10-5

Figure 10-6

(D2) x4
ø3 x10mm

(E1) x1
ø3 x10mm

(D2) x1
ø3x10mm

(F4) x2
ø3x10mm

(F4) x1
ø3x10mm

(F3) x2

(F1) x1

(F2) x2

(F2) x1

(F3) x2

(D1) x1

Rear
Panel

Main PWB

Tuner PWB

Front Panel

CD-K449W
Only

(J2)x5
ø3x10mm

(G1)x1
ø3x10mm

(G1)x2
ø3x10mm

Front Panel

( J2 ) x1
ø3x10mm

( H2 ) x1
ø3x10mm

( J1 ) x2

( H1 ) x1

Power Amp. PWB

Karaoke
PWB

CD-K449W
Only

(K1)x4
ø4x8mm

(K1)x1
ø3x8mm

(K1)x1
ø3x10mm

Power Supply PWB

(M1)x3
ø3x10mm

(L3)x12
ø3x10mm

(P1)x6
ø3x10mm

Lug Wire

(N1)x1
ø3x10mm

Open

Headphones
PWB

Display
PWB

(L1)x2

(L2)x1

Washer

Tape Mechanism

Cassette
Holder (Left/Right)

Front Panel

CD Switch PWB

( R1 ) x1
ø3 x10mm

( R1 ) x1
ø3 x10mm

( Q1 ) x1
ø3 x10mm

Turntable

Disc Tray

( Q2 ) x1

( R2 ) x1

( R2 ) x1

CD Player Unit

( S1 ) x1
ø3 x10mm

( S2 ) x2

( S2 ) x2

CD Player Unit

CD Servo PWB

– 11 –

CD-C449W/K449W

CP-C449

1 Front Speaker 1. Net.......................... (A1) x1 11-2

2. Front Panel ............ (A2) x1

3. Screw ..................... (A3) x2

4. Screw ..................... (A4) x4

5. Screw ..................... (A5) x2

STEP REMOVAL

PROCEDURE

FIGURE

CP-C449

Figure 11-2

Be careful 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 11-1

( U1 ) x4
ø3 x12mm

( V1 ) x1
ø2.6 x10mm

CD Changer
Mechanism

CD Mechanism

Shift Lever

CD Player Base

Screw driver

Woofer

Woofer

Net

(A1)x1

Baffle Board

(A2)x1

Tweeter

Tweeter

Super

Tweeter

(A5)x2

ø3x10mm

(A3)x2

ø3x10mm

(A4)x4

ø4x16mm

CD-C449W/K449W

– 12 –

How to remove the pickup (See Fig. 12-2)

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.

Figure 12-2

REMOVING AND REINSTALLING THE MAIN PARTS

CD MECHANISM SECTION

Perform steps 1, 2, 3,15,16,17 and 19 of the disassembly
method to remove the CD mechanism.

How to remove the loading motor
(See Fig. 12-1)

1. Remove the screws (A1) x 2 pcs., to remove the loading
motor.

Figure 12-1

( A1 ) x2
ø2.6 x5mm

Loading / Up
/ Down Motor

Motor
PWB

( B1 ) x2
ø2.6 x6mm

Shaft
( B2 ) x1

Stop Washer
( B3 ) x1

Gear
( B4 ) x1

CD Mechanism

Pickup

Note

After removing the connector for the optical pickup fromthe

connector wrap the conductive aluminium foil around the
front end of connector so as to protect the optical pickup
from electrostatic damage.

– 13 –

CD-C449W/K449W

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 VRM01 3,000 ± Speaker
speed 30 Hz terminal

(Load
resistance:
8 ohms)

ADJUSTMENT

Specified Value

Tape 1

• Tape Speed

Figure 13

VRM01

TAPE
SPEED

FAS
SW

TAPE MECHANISM PWB

IF 450 kHz 1,602 kHz T351 *1
MW Band — 531 kHz (fL): T306 *2

Coverage 1.1 ± 0.1 V
SW1 Band — 3.2 MHz (fL): T307 *2

Coverage 2.0 ± 0.1V
SW1 Band — 7.3 MHz (fH): TC305 *2

Coverage 7.7 ± 0.2 V
SW2 Band — 9.5 MHz (fL): T308 *2

Coverage 2.1 ± 0.1V
SW2 Band — 21.85 MHz (fH): TC304 *2

Coverage 7.7 ± 0.2V
MW 990 kHz 990 kHz T302 *1

Tracking
SW1 3.9 MHz 3.9 MHz (fL): T303 *1

Tracking
SW1 7.1 MHz 7.1 MHz (fH): TC303 *1

Tracking
SW2 11.65 MHz 11.65 MHz (fL): T304 *1

Tracking
SW2 21.45 MHz 21.45 MHz (fH): TC302 *1

Tracking

TUNER SECTION

fL: Low-range frequency
fH: High-renge frequency

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage

Instrument

Connection

Frequency

Frequency

Display

Setting/

Adjusting

Parts

*1. Input: Antenna, Output: TP302
*2. Input: Anetnna, Output: TP301

CD-C449W/K449W

– 14 –

Figure 14 ADJUSTMENT POINTS

Instrument

Connection

• FM RF

Signal generator: 1 kHz, 40 kHz dev, FM modulated

Test Stage

Frequency

Frequency

Display

Setting/

Adjusting

Parts

Band — 87.5 kHz (fL): LT02 *1
Coverage 3.7 ± 0.1 V

RF 98 MHz 98 MHz LT01 *2

10 - 30 dB

*1. Input: Antenna, Output: TP301
*2. Input: Anetnna, Output: Speaker Terminal

• Setting the Test Mode

Keeping the PAUSE button and TUNER button pressed, turn
on POWER. Then, the frequency is initially set in the memory
as shown in Table. Call it with the PRESET button to use it for
adjustment and check of tuner circuit.

Preset

No.

1 87.50 MHz 6 531 kHz 11 3.2 MHz 16 9.5 MHz
2 108.00 MHz 7 1,602 kHz 12 7.3 MHz 17 21.85MHz
3 90.00 MHz 8 603 kHz 13 3.9 MHz 18 11.65 MHz
4 106.00 MHz 9 1,404 kHz 14 7.1 MHz 19 21.45 MHz
5 98.00 MHz 10 990 kHz 15 5.06 MHz 20 15.1 MHz

21 ~ 40

FM Preset

No.

MW

SW2

Preset

No.

SW1

Preset

No.

• FM Detection

Signal generator: 10.7 MHz, FM sweep

Test Stage

Instrument

Connection

Frequency

Frequency

Display

Setting/

Adjusting

Parts

IF 10.7 MHz 98 MHz TT01 *1

(Turn the
core of trans­former TT01
fully counter­clock wise)

*1. Input: Antenna, Output: TP301
*2. Input: Anetnna, Output: Speaker Terminal

*1. Adjust so that an output signal appears.

• FM Mute Level

Signal generator: 1kHz, 40 kHz dev., FM modulated

Frequency Adjusting

Parts

Instrument

Connection

Frequency

Display

98.00 MHz 98.00 MHz VR351 *1 Input: Antenna
(25 dBµV) Output: Speaker

Terminal

TUNER PWB

AM IF

T351

VR351

LT02

TT01

T303TC303

T304TC302

T302

T308 TC304

T307 TC305

T306

LT01

MW Band
Coverage

FM Mute
Level

FM Band
Coverage

MW
Tracking

IC303

SW2 Tracking

fH fL

TP302

SW1 Band
Coverage

fL fH

SW1
Tracking

fH fL

SW2
Coverage

fL fH

TP301

R357

FM IF FM RF

SO301
ANTENNA
TERMINAL

– 15 –

CD-C449W/K449W

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 15-2

Figure 15-3

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. 15-2)

2. Tracking offset (Fig. 15-3)

3. E/F balance (tracking error balance) (Fig. 15-4)

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 15-1

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> + <DISC. SKIP> + <POWER> TEST: CD operation test

• TEST mode

Function — CD test mode

Setting of TEST mode
Indication of CD TST mode (Fig. 15-1)
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 15-4

IL is not performed.

<STOP>

CD-C449W/K449W

– 16 –

(Continued)

■SRS (●) 3D SURROUND

About SRS (●) 3D surround:

SRS is a breakthrough technology that creates 3-dimensional
sound by processing sound signals based on the human auditory
system. It produces real depth and localization of the sound
image which cannot be accomplished by ordinary stereo.
SRS only requires two speakers.

SRS (●) 3D surround effects:

● Live performance atmosphere

(Simulates a live concert atmosphere)

● The localization of various musical sources is quite clear.
(The positions of the musical instruments and singers are very
clear.)

● Reproduction of depth
(Sounds from the front and back of an orchestra can be ident­ified easily.)

● Expansion of the sound field
(The sound image is spread out over a wide area.)

Selecting the 3D surround mode:

When the sound source is in stereo, you can select from any of
5 different 3D surround effect.

1 Select any desired audio source and begin playback.
2 To hear the 3D surround effect, press the SRS MODE button.

● "SRS (●)" will appear.

When the SRS MODE button is pressed, the current mode setting
will be displayed. To change to a different mode, press the SRS
MODE button repeatedly.

● "PASS" will not be displayed in remote control operation.

MODE-1 MODE-2 MODE-3 MODE-4 MODE-5 PASS

Notes:

● The 3D SURROUND effect will not work on a monaural sound
source.

● When the 3D surround mode is being used, the equalizer will
be set to FLAT.

SURROUND
MODE

Effect from each mode

PASS

SRS

MODE

MODE-1

You will enjoy a sound image that pro­duces an intimate sound field. (as in
a medium-size hall)

MODE-2

This setting gives you a maximum
sound field as music comes out be­yond the speakers. (as in a large,
domed arena)

MODE-3

This setting is great for live recording
and vocal music.

MODE-4

You will hear more vocals in an inti­mate sound field. (as at a live music
performance)

MODE-5

This setting greatly increases the
amount of vocals or centre sounds in
a recording. (as in a small club)

To cancel the 3D surround effect:

(Main unit operation)

Press the SRS MODE button repeatedly to select "PASS".

(Remote control operation)

Press the PASS button.

Ordinary stereo sound

Listening area
(Listening range with good stereo fidelity)

3D SURROUND

Wide listening area
(Stereo music can be heard anywhere in the room.)

– 17 –

CD-C449W/K449W

SW1 OPEN/CLOSE ON—OFF
SW2 MECHA UP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW991 VOLTAGE SELECTOR 230-240V
SWD1 VOLUME JOG ON—OFF
SWD2 JOG ON—OFF
SWD3 X-BASS ON—OFF
SWD7 SOFT ON—OFF
SWD8 VOCAL ON—OFF
SWD9 HAVY-2 ON—OFF
SWD10 HAVY-1 ON—OFF
SWD11 FLAT ON—OFF
SWD12 TUNING UP/CUE ON—OFF
SWD13 STOP ON—OFF
SWD14 NORMAL EDIT ON—OFF
SWD15 HIGH EDIT ON—OFF
SWD16 REC/PAUSE ON—OFF
SWD17 F-PLAY ON—OFF
SWD18 SRS/DEMO ON—OFF
SWD21 BAL RIGHT ON—OFF
SWD22 BAL LEFT ON—OFF
SWD30 TUNING DOWN/REWIND ON—OFF
SWD31 CD PAUSE ON—OFF

SWD32 REVERSE MODE ON—OFF
SWD33 R-PLAY ON—OFF
SWD34 CLOCK ON—OFF
SWD35 MEMORY ON—OFF
SWD36 TIMER ON—OFF
SWD37 SLEEP ON—OFF
SWD38 CLEAR ON—OFF
SWD39 VIDEO/AUX 1 ON—OFF
SWD40 VIDEO/AUX 2 ON—OFF
SWD41 TAPE 1/2 ON—OFF
SWD42 TUNER/BAND ON—OFF
SWD43 CD ON— OFF
SWD48 POWER ON—OFF
SWD49 KARAOKE (CD-K449W Only) ON— OFF
SWD50 DISC 1 ON—OFF
SWD51 DISC 2 ON—OFF
SWD52 DISC 3 ON—OFF
SWD53 DISC SKIP ON—OFF
SWD54 OPEN/CLOS ON—OFF
SWF2 SPAN SELECTOR 50/9
SWM3 REC FWD ON—OFF
SWM4 REC RVS ON—OFF
SWM5 F.A.S ON—OFF
SWM6 CAM ON—OFF

• 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.

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.

REF. NO DESCRIPTION POSITION POSITIONREF. NO DESCRIPTION

Figure 17 TYPES OF TRANSISTOR AND LED

KTA1266 GR
KTA1270Y
KTA1271 Y
KTA1273 Y
KTA1268 GR
KTC3199 GR
KTC3203 Y

KRA107 M
KRA102 M
KRC102 M
KRC104 M
KRC107 M
2SC535 C
2SC1845 F

2SD2012
2SB1375

SLR325MG
SLR325VR
KL052UL
SLR505MC
LMKD515B

KV1236Z23

(S)(G) (D)
(1) (2) (3)

E C B

FRONT

VIEW

FRONT

VIEW

B C E
(D)(G)(S)
(3) (2) (1)

FRONT

VIEW

FRONT VIEW

2SC2878 A
2SC2878 B
2SC2236 Y
2SD468 C
2SK246 GR
KTC3200 GR

– 17 –

CD-C449W/K449W

SW1 OPEN/CLOSE ON—OFF
SW2 MECHA UP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW991 VOLTAGE SELECTOR 230-240V
SWD1 VOLUME JOG ON—OFF
SWD2 JOG ON—OFF
SWD3 X-BASS ON—OFF
SWD7 SOFT ON—OFF
SWD8 VOCAL ON—OFF
SWD9 HAVY-2 ON—OFF
SWD10 HAVY-1 ON—OFF
SWD11 FLAT ON—OFF
SWD12 TUNING UP/CUE ON—OFF
SWD13 STOP ON—OFF
SWD14 NORMAL EDIT ON—OFF
SWD15 HIGH EDIT ON—OFF
SWD16 REC/PAUSE ON—OFF
SWD17 F-PLAY ON—OFF
SWD18 SRS/DEMO ON—OFF
SWD21 BAL RIGHT ON—OFF
SWD22 BAL LEFT ON—OFF
SWD30 TUNING DOWN/REWIND ON—OFF
SWD31 CD PAUSE ON—OFF

SWD32 REVERSE MODE ON—OFF
SWD33 R-PLAY ON—OFF
SWD34 CLOCK ON—OFF
SWD35 MEMORY ON—OFF
SWD36 TIMER ON—OFF
SWD37 SLEEP ON—OFF
SWD38 CLEAR ON—OFF
SWD39 VIDEO/AUX 1 ON—OFF
SWD40 VIDEO/AUX 2 ON—OFF
SWD41 TAPE 1/2 ON—OFF
SWD42 TUNER/BAND ON—OFF
SWD43 CD ON— OFF
SWD48 POWER ON—OFF
SWD49 KARAOKE (CD-K449W Only) ON— OFF
SWD50 DISC 1 ON—OFF
SWD51 DISC 2 ON—OFF
SWD52 DISC 3 ON—OFF
SWD53 DISC SKIP ON—OFF
SWD54 OPEN/CLOS ON—OFF
SWF2 SPAN SELECTOR 50/9
SWM3 REC FWD ON—OFF
SWM4 REC RVS ON—OFF
SWM5 F.A.S ON—OFF
SWM6 CAM ON—OFF

• 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.

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.

REF. NO DESCRIPTION POSITION POSITIONREF. NO DESCRIPTION

Figure 17 TYPES OF TRANSISTOR AND LED

KTA1266 GR
KTA1270Y
KTA1271 Y
KTA1273 Y
KTA1268 GR
KTC3199 GR
KTC3203 Y

KRA107 M
KRA102 M
KRC102 M
KRC104 M
KRC107 M
2SC535 C
2SC1845 F

2SD2012
2SB1375

SLR325MG
SLR325VR
KL052UL
SLR505MC
LMKD515B

KV1236Z23

(S)(G) (D)
(1) (2) (3)

E C B

FRONT

VIEW

FRONT

VIEW

B C E
(D)(G)(S)
(3) (2) (1)

FRONT

VIEW

FRONT VIEW

2SC2878 A
2SC2878 B
2SC2236 Y
2SD468 C
2SK246 GR
KTC3200 GR

CD-C449W/K449W

– 18 –

WAVEFORMS OF CD CIRCUIT

3

5ms

0.50 V
IC1 20 F.E

1

5ms

5.0 V
IC1 54 DRF

STOP PLAY

FOCUS SERCH

1

3

5

4

2

6

7

8
9

10

11

3

4

5

6

7

8

9

6
7
8

10

11

12

9

6
7
8
9

12

0.5ms

1.00 V
HF

0.5ms

5.0 V
HFL

0.5ms

5.0 V
TES

1
2

3

CUE

0.5ms

1.00 V
HF

1
2

3

0.5ms

5.0 V
HFL

0.5ms

5.0 V
TES

REVIEW

50ms

10.0 V
JP+

CUE

50ms

10.0 V
JP-

50ms

0.50 V
JP

50ms

1.00 V
TE

0.5ms

10.0 V
JP+

0.5ms

10.0 V
JP-

0.5ms

0.50 V
JP

0.5ms

1.00 V
TE

REVIEW

50ms

10.0 V
JP+

50ms

10.0 V
JP-

50ms

0.50 V
JP

50ms

1.00 V
TE

0.5ms

10.0 V
JP+

0.5ms

10.0 V
JP-

0.5ms

0.50 V
JP

0.5ms

1.00 V
TE

PLAY

20ms

1.00 V
SPO

NORMAL DISC
TN0=01

20ms

2.00 V
CLV+

PLAY

TCD-712 (140mm)
TN0=01

50ms

1.00 V
SPO

50ms

2.00 V
CLV+

PLAY

TCD-712

5s
100mV
SLD

1

0.5s
100mV
SLD

1

– 19 –

CD-C449W/K449W

Figure 19 BLOCK DIAGRAM (1/3)

8

27

1

2

3

4

5

98

6

7

20

12

13

242530

31

3222

34

35

36

10 11

272628

29

PU-IN SW

XL1

XIN

LD0

FIN2

JP–

CV+

SLC

SL1

FIN1EF

TO

FD

SPO

NC

SLD

SL–

SL+

DRF

CL

DAT

CE

VCC1

6

+5V

PICKUP IN

SW4

FOCUS COIL

TRACKING COIL

M1

DISC

MOTOR

M

M

M2

SLIDE

MOTOR

PICKUP UNIT

9

IC2

LC78622K

SERVO/SIGNAL

CONTROL

+B1

IC3

M56748FP

DRIVER

IC1

LA9241M

SERVO AMP.

6

1

9

5

+B1

+12V(+B5)

RES. CQCK. COIN

SQOUT. RWC. WRQ

~

~

~

CL, DAT, SELIAL CONTROL/CE

Q93

Q91

Q91

SL+. SL–. DRF

7
3

9

8

7

6

5

4

3

2

1

GND (D)

MECHA UP

GND (D)

DISK NO.

OPEN/CLOSE

GND (D)M–M+

GND (M)

9

8

7

6

5

4

3

2

1

CNP10

M

+5V

+B1

62

64 45 3623 43

31

40

37

24

25

10 10

265853

101220

324043

44

5352515431302923271615

4144

Q1 Q52

+4.3V

Q81 +7.3V (+B9)

REGULATOR

TO MAIN SECTION

IC81

TA7291S

LORDING MOTOR

DRIVER

XOUT

EFMO

EFMIN

CLV+

JP–

CONT2

CONT1

CONT4

DOUT

LCHO

RCHO

VVDD

VDD

LVDD

RVDD

XVDD

SW1

OPEN/CLOSE

SW2

MECHA UP

SW3

DISC No.

M3

LOADING

SOLM1

TO MAIN

SECTION

CNS10

CD-C449W/K449W

– 20 –

Figure 20 BLOCK DIAGRAM (2/3)

J602

MIC2

J602

MIC1

VR602

MIC2

VOLUME

VR601

MIC2

VOLUME

VR6

DIGITAL

VOL

U

IC601

M65845FP

MIC AMP.

L

R

H/N

T1/T2

ERASE

HEAD

R-CH

L-CH

PB HEAD

L-CH
R-CH

REC/PB
HEAD

P.B

AC BIAS

P.B

REC

REC/PB

TAPE 2

TAPE 1

T1/T2

SWITCHING SWITCHING

BAIS

L NF

L(T1)

R(T1)

L(T2)
R(T2)

R NF

L
R

POP REDUCE

L REC
R REC

PLAYBACK AND RECORD AMP

AN7345K

ICK01

L RREC

P.B.

REC

ALC

HIGH

NOR/

T1/T2

REF

+B7

P.B

REC/PB

MUTING

MUTING

PB MUTE

REC MUTE

HI SPEED

L NF
R NF

SWITCHING

SWITCHING

SWITCHING

M

MOTOR

MM1

+B2

TA MOT H/L

HI SPEED

TA MOT SW

DRIVER

DRIVER

MOTOR

BAIS

TAPE

L

R

JR11

JR12

VCR/AUX1

VCR/AUX2

QK21
QK22

QK26

QK24

QK28
LK04

QK07
QK08

QK11

QK10

QK09

QK03
QK04

QK05
QK06

QK19

QK15
QK16

DRIVER

QL17

QL12

QL13

QL11

QL18

QL14

QK17
QK18

14

15

19

10

17

8

18

7

12

13

14

16

9

6

4

3

23

2

24

1

5

21

4

20

ICH11(1/2)

CD MUTE

QL16

SOLENOID

DRIVER

SOLM1
SOLENOID

T1/T2 CrO 2

T1/T2 PLAY

T2 F-REC

T2 R-REC

QL15
QL19

F.A.S.

SWM5

SWM6
CAM SW

SWM3
REC FWD

SWM4
REC RVS

T1 CrO2

SWM1

SWM2
T2 CrO2

+B6

CAM SW

PHM1

T2_RUN

T2_A_FP

43

8

2

4

1

6

7

8

1712

2113

20

1011161522

1

321

231

4

17

985

16

1561412101321222324

7

18

2

3414

21

10 2

5

19 18

31

2722

58

54

57

55

1

6

5

1

24

25

10

11

9

7

38

5

1

9

6

28
27

17
18

26

7

6

5

DO

7

DO

CE

CL

DI

MUTING

VOLTAGE

REGURATER

+B7

RL

Q353
Q354

IF IN

IF OUT

FM MONO/ST MONO/ST

VR351

FM MUTE LEVEL

AM OSC

REGOUT

FM IF IN

X352

4.5MHz

OSC

STEREO

+B7

AM IN

FM IN

FMOSC

T351

AM IF

L
R

R

L

AM IF
CF352

IN

X351

456KHz

FM IF

CF351

VCC

+B7

GND

+B7

QS17
QS18

QS16

Q631

QS11

QT01

Q360
Q361

IC303

LA1832

FM IF DET./FM MPX./AM IF

Q361

BFT01

GND
SW1

SW2

MW

FM

FM BAND

PASS FILTER

SW2 +B

SW1 +B

Q364

QG05

Q363

+B7

+B7

Q308
Q309

Q306
Q307

MW +B

T307
T308

T303
T304

SW1/SW2
OSC.

SW1/SW2
ANT.

T306

MW OSC.

T302

MW ANT.

+B7

AMP

LT02

FM

RF

LT01

FM

OSC

ICT01

TA7358AP

FM FRONT END

TT01

FM IF

CF302

FM IF

+B6

P

A

L

R

L

R

ICS01

SRS5250AS

SRS

DI

OUT

AM RF IN

AFC

IN

TUNER

TUNER SD

Q362

+B7

FM +B

FM

SO301

ANTENNA

TERMINAL

FROM CD UNIT

AM IN

TUNER

CD

ICU01

LC75396N

AUDIO PROCESSOR

IN

Vref RVrefLVref

GRAPHIC EQUALIZER

IC302

LC72131

PLL CONTROLLER

+B7

+12V

+B7

-B6

IN

OUT

SD

VOLTAGE

REGULATOR

VCCMIC

IN

GND

MIC2 IN

AU

D

MIC SW

MIC1

VOL IN

MIC2

VOL IN

ECHO

VOL IN

AUX2

AUX1RL

R

L

51
61
52
60

LR LR

3

6

9

2

5

8

4

7

12

47
44
41
38

11

46
43
40
37

10

45
42
39

12

VOLTAGE
REGULATOR

SWITCHING

SW

T1 CrO

2

T1 RUN

T2 RUN
T2 A FP
T2 B FP

2

T2 CrO
CAM-SW

TAPE SOL

TA MOT

HIGH SP

FR SP

BIAS

BEAT–CUT

TA–PB–EQ

TA R/P

REC MUT

T1/T2

PB MUTE

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

QU02
QU01

– 21 –

CD-C449W/K449W

Figure 21 BLOCK DIAGRAM (3/3)

0

2
2
ME

VR601

MIC2

VOLUME

VR603

DIGITAL ECHO

VOLUME

IC601

M65845FP

MIC AMP.

L
R

AMP

H/P SW

POSISTOR

82 24

POSISTOR

5

DS RES

10

S-MUTE

64

63

62

1

43

5

21

26

7573715150474533

27

14

907246188915

8

679

797527 504947456265636461818768

58 23 19

70

15

1

2

14
10

3

9

7
6

7
1

3

5

31

25232434

17

26

5521

10 25

26

19 18

27
33
34
29
28

24

25

10

11

28
27

26

4

8

1

97

96

95

29

3

2

1

CL

DI

DO

72

71

69

RES
CQCK
COIN

SQ OUT

WRQ
RWC
CD SL+

CD-PUIN
CD-DRF

+B4 (5V BACK UP)

+B3

VDD

+5V

UNSWITCH
+B2

MEMORY

VSS

+B4

RESET

OSC

4.19MHz

XF0201

SYSTEM STOP

P.FAIL DET

+B3

RESET IN

CD SL-

4

TO CD UNIT

QG01

QG02
QG03
ZDF01

STB

SCK

DAT

CD U/D

CD O/C
CD DNO

99

5
3

11

100

2

1
14
13
18
56
90
15
57

89
12
16

17
27

93
91
92

7

8

9

~

RELAY

H/P SW
FAN CONT

PROT

F992

T1.6A L 250V

SW991

VOLTAGE

SELECTOR

VOLTAGE

REGULATER

VOLTAGE

REGULATER

SWD01~SWD03
SWD07~SWD18
SWD21~SWD22
SWD30~SWD43
SWD48
SWD50~SWD54
SWD49(CD-K449W ONLY)

+B6

LEDD01~LEDD21

LEDD23~LEDD28

F1

F2

RXD01

REMOTE

CONTROL

SENSOR

~

~

DATA1

JOG DIAL

SWD02

JOG DIAL

SWD01

DATA

FAN

PROT

S-MUTE

POWER

AMP

FAN CONT

FRNT RLY

TMV01
SPEAKER
TERMINALS

F991

T1.6A L 250V

F990
T3.15A L 250V

230~240V

AC POWER
SUPPLY CORD
AC 110/127/220
230–240V
50/60HZ

VOLTAGE

REGULATOR

D992~D995

Q951

F997

T2A L 250V

F999

T5mA L 250V

T991

D991

+B1

VP VF2

(AC)

VF1
(AC)

T.F

POWER

TRANSFORMER

QV16
QV17

+4.6V

ICP11

NJM4565M

BUFFER AMP.

QS17
QS18

QS16

QS14

Q631

SRS A/SRS B

SRS IN H

PASS/SRS STEREO/SRS MONO

SRS PASS/3D

L

R

ICS01

SRS5250AS

SRS

MIC_DET

CD MUTE

VOICE CAN

CE

CL

DI

CE

SRS IN H

SRS PASS

SRS B

SRS A

COM

+B6

Q902
Q901

TO CD UNIT

Q908
Q908

Q904

Q906
Q905

Q903

Q914

+7.3V(CD)

+B9

VOLTAGE

REGULATOR

–B6

–15V

+B7

+B6

+B2

UN-SWITCHED

+12V(MOTOR)

+12V(ANALOG)

VOLTAGE

REGULATOR

SWITCHING

VOLTAGE

REGULATOR

ICF01

IX0235AW

SYSTEM CONTROL

MICROCOMPUTER

TUNER MUTE

TUNER SD

SCK

STB

Q907

QP11
QP12

POWER

POWER ON/STB
SWITCHING

OUT

IN
L
R

L
R

L
R

ICV01
STK40709
POWER AMP.

–B6

+B7

R-IN

L-IN

VH+

VH-

R-OUT

L-OUT

–B1

STB

SCK1

COM1

FAN

MOTOR

QV20
QN21

FAN

RLYV11
RELAY

QV22

QV19QV18

QV13
QV14

M

R-CH

GND

GND

L-CH

+

–

–

+

J901
HEADPHONES

FD01 FL DISPLAY

ICD01

IX0243AW

FL DRIVER &

CONTROLLER

~~~

~

KEY INVDD

+B2

VSS

KEY MATRIX

VF2 (AC)

VF1 (AC)

OUT

OUT

ICU01

LC75396N

UDIO PROCESSOR

Vss

VDD

VOLUME

RVref

GRAPHIC EQUALIZER

+B7

+B7

B

6

VOLTAGE

REGULATOR

VCC

GND

IN

OUT

IN

AUD SW

CD-K449W

ONLY

W
MIC1
OL IN

MIC2

VOL IN

ECHO
VOL IN

LR

LR LR

3

6

9

2

5

8

63

4

7

12

47
44

41
38

11

46
43
40
37

10

45
42
39

48

12

SWITCHING

SWITCHING

SWITCHING

FAN MOTOR
CONTROL

RELAY DRIVER

PROTECTION

PROTECTION

T1 CrO

2

T1 RUN

T2 RUN
T2 A FP
T2 B FP

2

T2 CrO

CAM-SW

TAPE SOL

TA MOT

HIGH SP

FR SP

BIAS

BEAT–CUT

TA–PB–EQ

TA R/P

REC MUT

T1/T2

PB MUTE

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

220V
127V
110V

CD-C449W/K449W

– 22 –

Figure 22 SCHEMATIC DIAGRAM (1/15)

A

B

C

D

E

F

G

H

1

23456

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

SW4

PICKUP UNIT

M2

SLED

MOTOR

M

M1

SPINDLE

MOTOR

C2

0.01

Q1
KTA1266

IC1
LA9241M
SERVO AMP.

C54

0.001

R15
12K

R9

100K

R10

2.2K
R11

6.8K

R13 1K

R14 27K

C5

0.033
C6

0.033

C9

0.047

C17

0.001

C13

330P

C14

0.01

R25

1.5K

R23
10K

R24
47K

R19
1K

R21

22K

R22
22K

R20

1K

C26

0.033

C27

0.001

R44
33K

R42
47K

R40

5.6K
R43

56K

C24

2.2P

R41
47K

C19 1/50

C4 0.1/50

R8

15K

C29

4.7/50

C28

0.1

R45

4.7K

C3
1/50

R1
10

R46
560

C35
1/50

R37
82K

IC3 M56748FP

FOCUS/TRACKING

/SPIN/SLIDE DRIVER

C36

100/16

C8 0.068

C10

180P

R16

3.3K

C11

0.1

C12

0.1

R17 33K

R18 15K

R26
82K

R27 39K

C16

0.0047
R28 10K

C18

0.47/50

R31

1.2K

R30

6.8K

R29 56K

C20

47/16

R32 10K

R33 1.2K

R34 22K

R35 220K

R36

220K

C21

0.0033

D1

1SS133

C22
220P

C30 0.1/50

C31 220/6.3

C32 0.01

C33 0.47/50

C34 0.33/50

R39

1K

C25
27P

C23

0.0027

R38
470

R12
100

D4

RL10

4

D2

RL104AD3RL104A

R2
1K

C1
47/16

C15

0.01

C7

0.1/50

C85

0.001

1

CNP1

2
3
4
5

1
2

3
4

5
6
7

8

9

10

11
12

13

14

15

16

17

18 19

20 21

22

23

24

25 26

27

28

29

30

31 32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49 50 51

52

53

54 55

56

57

58

59

60

61 62 63

64

1

CNP2

2
3
4
5
6
7
8

1

CNP3

1

CNS3A

1

CNS3B

1

CNP3A

2

3

4

5

6

2

3

4

5

6

2

3

4

5

6

2

3

4

5

6

1

2
3

4

5

6

7
8
9

10

11
12
13
14
15
16
17

19

20

21

22

23

24

25

26

27

28

29

31
30

32

33

34

35

36

1
2
3
4
5

1

2

3

4

5

CNS1A

CNS1B

1
2
3

4

5
6
7

8

1
2
3
4
5
6
7
8

CNS2B

CNS2A

1
2
3
4
5
6

7

8

1

2

3

4

5

R48
10K

M

2.5V

2.5V

PU-IN

0V

GND

LD

ACTUATOR

LT0H30M1

TR–

FO–

FO+

TR+

2200P

1M
2200P

1M

MON

C

F

A

B

E

K

LD

F

B

A

E

K

TR–
TR+
FO+
FO–
GND
PD
VR
LD

TR–
TR+
FO+
FO–
GND

PD
VR
LD

F

B

A

E

K

B

F

E

A

K

–

+

-

+

CH3 CH4

1CH

CH2

+

–

TSD

–

+

STAND

BY

+

–

+
–

4.2V

GND

0V

0V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

0V

2.5V

2.5V

2.5V

0V

0V

5V

5V

0V

0V

5V

0V

0V

1.6V

2.5V

2.5V

2.5V

0V

2.5V

5V

5V

2.5V

2.2V

1V

2.4V

4V4V0V

0V

2.5V

1V

0V

VREF

SP+
SP–
SL+
SL–

TESI

SCI

HF

TE

0V

5V

2.5V

2.5V

2.5V

2V

2.5V

0.7V

4.7V

0V
0V

0V

0V

2V

1.8V

1.8V

2.5V

0V

0V

0V

0V

0V

0V

4.7V

0V

2.5V

2.5V

2V

2V

0V

0V

0V

2V

2V

2.5V

2.5V

2.5V

2.5V

PICKUP UNIT

CD MOTOR PWB-K

+B

PD

GND

LD

VR

FO–

TR+

TR–

FO+

–

+

+

–

FSC

GEN

+

–

+

–

REF

CV–

JP–

JP+

CV+

JP

+

–

+
–

REF

REF

SLOF

SLOF

LATCH

P-ON RES

DAT

CLK

FEBAL

SHOCK;WCOMP

HIST.COMP

BAL

WCOMP

JP

REF

+

–

FOF

REF

REF

+

+

–

–

GEN

REF

REF

+

+

–

–

SPOF

REF

SLOF

OR

REF

+

–

RF

REF

+

–

+

–

REF

+

–

REF

FE1

+

–

VCR

–

+

HFL

–

+

DEF

VCC

REF

+
–

REF

–

+

CE
CL

SLOF

FSTA

TOSTA

FOSTA

8/12CM

LASER

2FREQ

RF

REF

–

+

REF

REF

+

–

+
–

+

–

–
+

–
+

+

+

-

-

GEN

REF

TO

+–

–

+

REF

REF

REF

REF

–

+

VCR

VCR

VCR

TGL1
THDL

GL

THD

VCC

DRF

S.Q.R

PSTR

REF

+

+

–

–

SLC

FSS

TBC

TO

VCC1

SPI

JP

SPG

SP–

SPO

FD

FA–

FA

SP

THLD

TD–
TD

TO

TA

TH

TE

TE–

TB

F

E

FIN1

FIN2

LDS

LDO

BHI

PHI

LF2

SLI

VR

REFI

VCC2

DRF

CE

DAT

CL

CLK

DEF

DGND

RFS–

RFSM

CV+
CV–

SLOF

HFL
TES

TOFF

TGL

JP+

FE–

FE

FD–

AGND

SLEO

SLD

SL–

SL+

JP–

FSC

NC

10

– 23 –

CD-C449W/K449W

Figure 23 SCHEMATIC DIAGRAM (2/15)

7

8 9 10 11 12

• The numbers 1 to 12 are waveform numbers shown in page 18.

C26

0.033

R44
33K

R42
47K

40

.6K

R43
56K

R41
47K

2

9

/50

C28

0.1

R57 1K
R58 1K
R59 1K
R60 1K
R61 1K
R62 1K
R63 1K

D1

1SS133

C22
220P

R47
10K

C37

0.022

R50
680

C39

0.047

C40

0.047

R53

1.2K

IC2
LC78622K
SERVO/SIGNAL
CONTROL

R51 3.3M

C38

0.01

C49 100P

C48 100P

C47 100P

C46 100P

C45 100P

C44 100P

C43
330/6.3

C52 100/16

ZD61

MTZJ4.7B

R64
22

R66
330

Q52

KTC3203 Y

C42
15P

C41

12P

XL1

16.934MHz

D82

1SS133

D81
1SS133

L61

0.82µH

R55 150

R52
27K

R93@220

C57

0.001

C56

0.022

C83

0.022

C53

0.022

R39

1K

C25

27P

C23

0.0027

R38

470

C51

100/16

R90 1K

R89 1K

R88 1K

C72

10/50

C71

10/50

R74

560

R73
560

R71

2.7K

R72

2.7K

Q51

KRC107 M

R81

3.9K

R80

6.8K

D4

RL104A

D3

RL104A

IC81

TA7291S

LOADING

MOTOR DRIVER

R83

3.9K

C81

47/16

R82

6.8K

C82

47/16

Q93

KRC102 M

Q91

KTA1271 Y

R87
10K

D91
1SS133

R86

2.2K

R54

330

C74

0.001
C73

0.001

C50

3.3/16

R85

56

1

CNP10

2
3
4
5
6
7
8
9

10 10

1

CNP11

1

BI99

1

CNP99

2
3
4
5
6

2

2

3

3

1

CNP12

2

3

4

5

6

7

8

9

10

11 121314

1

2

3

4

5

6
7

8
9

10
11

12
13
14

15

16

17 18

19

20

21

22 23

24 25

26

27

28 29 30 31 32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49 50 51 52 53

54

55

56 57

58 59

60 61 62

63 64

1 2 3 4

5

6

7

8

9

1 2 1

2

1

CNS10 1 BIM05

2
3
4
5
6
7
8
9

2
3
4
5
6

SW3
DISC NUMBER

SW2
MECHA UP

SW1
OPEN
CLOSE

M

M3 T/T
UP/DOWN
LOADING
MOTOR

CNS5

5V

EFMIN

OPEN/CLOSE

MECHA UP

DISC NO.

PIUN

SL–

SL+

GND(D)

DRF

RES (DSP)

CQCK (DSP)

SQ_OUT (DSP)

COIN (DSP)

WRQ (DSP)

RWC (DSP)

DOUT
+4.3V
GND

CD R-CH
GND(AU)
CD L-CH
GND(CD)
+7.3V
12V(M)

XVDD

XIN

XOUT

XVSS

EFLG

SBSY

2.5V

0V

0V

2.2V

TA1

DEFI

0V

TEST1

PCCL

LVSS

0V

TEST3

PDO

EFMO

VSS

4M

16M

TST11

DOUT

C2F

EMPH

FSEQ

PCK

FSX

/RES

/CQCK

COIN

SQOUT

RWC

WRQ

SBCK

SFSY

PW

MUTEL

LVDD

RVDD

MUTER

RCHO
RVSS

LCHO

CONT5

CONT4

CONT1

CONT3

CONT2

FR

JP–

JP+

TGL

TOFF

CLV–

CLV+

V/P
HFL
TES

VDD

TEST2

VVDD

ISET

VVSS

TEST4

TEST5

/CS

0V

2.5V

0V

0V

0V

1V

5V

HF

FROM MAIN PWB

P24 1-D

CNSF12

+B

CD SERVO PWB-B

+B

0V

2.9V

6.5V

6.5V

6.5V

0V

1V

6.4V

0V

LOCK

SENSOR PWB-J

–

+

/CLOSE

OPEN

GND(D)

MECHA UP

GND(D)

DISC NO.

M+

M–

SOL
GND(M)

GND(D)

GND(D)

SOLENOID2

3

2

1

+B

3

2

1

+B

+B

TO MAIN PWB

P27 12-D

CNPR11

FROM MAIN PWB

P24 1-B

CNSF11

CD SIGNAL

+B

+B

+B

+B

SUB-CODE

DIGITAL SERVO

SLICE LEVEL

CONTROL

SYNC-DETECT

EFM DEMODULATE

VCO CLOCK

OSC CONTROL

ERROR CORRECT

FLAG CONTROL

DIGITAL

OUT

X-TAL

GENERATOR

µ-COM

INTERFACE

1BIT
DAC

4FS

DIGITAL

FILTER

EXTERNAL

OUTPUT

SERVO

COMMAND

CLV

2K x8BIT

RAM

CD-C449W/K449W

– 24 –

A

B

C

D

E

F

G

H

1

23456

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

Figure 24 SCHEMATIC DIAGRAM (3/15)

QU02

KTC3199 GR

QU01

KTC3199 GR

RU95

2.2K

RU96

2.2K

RG10

47K

CG07
22/25

RF77 22K

RF76 1K

RF75 1K

RF73 100

RF71 1K

RF70 1K

RF69 1K

RF68 1K

RF63 1K

RF62 1K

RF03 1K

RF04 1K

RF05 1K

RF09 1K

RF10 1K

RF11 1K

RF12 1K

RF13 1K

RF14 1K

RF08 1K

RF07 1K

RF06 1K

RF81

1K

RF82 1K

RF79 1K

RF80

1K

ICF01

IX0235AW

SYSTEM CONTROL

MICROCOMPUTER

XF01

CG05

15P

CG06

15P

RF17 820

RG04

10K

RF28

1K

RF27

1K

RF25 1K

RF24

10K

RF231KRF22 1K

RF21 1K

RF20 1K

RF19 1K

RF26 1K

RF29 1K

RG56 1K

RF01 1K

RF02 1K

RG38
100K

RG25

10K

RF30

1K
RG16

47K

RG19
47K

RG26

10K

RF67 1K

CH29

0.022

CH15

0.22/50

RH16
470K

DH11

1SS133

CH13
330P

RH14
560K

RH15
33K

CH18

0.22/50

RH24
470K

DH12

1SS133

RH20

1.5K

CH17

0.047

RH21
560K

RH22
33K

CH16
1/50

CH21

0.22/50

DH13

1SS133

RH29
470K

RH25

1.5K

CH20

0.015

RH26
560K

RH27
33K

CH19

0.47/50

CH24

0.22/50

DH14

1SS133

RH34
470K

RH30

1.5K

CH23

0.0047

RH31
560K

CH22

0.1

RH32
33K

CH27

0.22/50

DH15

1SS133

RH39
470K

RH35

1.5K

CH26

0.0012

RH36
560K

CH25

0.027

RH37
33K

ICH11

NJM4558M

MOTOR
DRIVER

RH11

22K

RH12

1K

CH10

47P

RH13
820K

RH17

1.5K

RG01
220K

DH16
1SS133

DH17
1SS133

DH18
1SS133

DH19
1SS133

DH20
1SS133

RF87

47K

RF91

47K

RF97 1K

RF98 1K

RF72 1K

RG11

10K

RG05

10K

RG23

10K

CH28

0.022

RG24 10K

RG08 10K

CH30

0.0056

RF94 1K
RF95 1K
RF96 1K

RG57 10K
RG58 10K
RG59 10K

RF53

47K

RF52

1K

CH12
10/16

GND(A)

+12V(A)

GND(A)

TA_FR SPEED

GND(CD2)
GND(CD1)
GND(D)
+7.3V(CD)
+12V(M)
+4.6V(D)

TUN L

TUN R

(4.0V)

PL6

PL5 (0V)
PL4 (0V)

PL0 (0V)

PL1 (0V)
PL2 (4.0V)
PL3 (4.0V)

PC2

(4.0V)

PC5

PC3

PC4 (4.0V)

(4.0V)

PC1

(4.0V)

PC0

PB7

(3.8V) PB6

PB5

(4.0V) PB4

(0V) PB3
(0V) PB2

(4.0V) PB1

(0V) PA6
(4.0V) PA5
(4.0V) PA4

PA3 (4.0V)
PA2 (4.0V)

(4.0V) PA7

PB0

PA1 (4.0V)

PA0

(4.0V)

VDD1

(4.0V)

CF2

(2.0V)

CF1

(1.7V)

VSS1

(0V)

P74

(0V)

P75

(0.4V)

P07

(0V)

P17

(4.0V)

P16

(0.6V)

P06 (0V)

P05 (0V)

P34
P35
P00
P01
P02 (8.8V)

P03 (4.0V)
P04

P30
P31
VSS3
VDD3
P32
P33 (4.0V)

SCK

(4.0V)

SO1

(0V)

SCK1

(4.0V)

SO0

(0V)

Si0

(4.0V)

AN0

(0.4V)

AN1

(0.4V)

AN2

(0.4V)

AN3

(0.4V)

AN4

(0.4V)

AN5

(0V)

AN6

(0V)

AN7

(0V)

INT1

(4.0V)

INT2

(4.0V)

INT3

(0V)

SI1

(0V)

INT0

(0V)

GND(

µ

+4V(µ-

C

RES(MAIN)

(4.0V)

(1/2)

8

4

1

3

2

+

–

7

(2/2)

5

6

–

+

16KHz

SPE-1

SPE-2

SPE-3

SPE-4

SPE-5

RWC

CD RES

–15V

+12V(A)

GND(A)

63Hz

250Hz

1KHz

4KHz

CG61

0.022

RF61
22K

1
2
3
4
5
6
7
8
9

1
2
3
4

5

6

7
8
9

10
11
12
13
14

10
11
12
13
14

2
3

4

5
6
7
8
9

1111

10

2
3
4
5
6
7
8
9

10

1

1

BIF13

(4.0V)

PF7

(3.8V)

PF6

(4.0V)

PF5

(4.0V)

PF4

(3.8V)

PF3

PF2

(3.8V)

PF1

(0V)

PF0

(4.0V)

PE7

(0V)

PE6

(4.0V)

PE5

(0V)

PE4

(4.0V)

PE3

PE2

PE1

PE0

(0V)

PD7

(3.6V)

PD6

PD5 (DI)

80

79 78

77

76

7

5

74

73

72

71

706968

67

66

65
81
82
83

81
82
83

84
85
86
87
88
89
90

64

636261

60

59

58

57

56

55

54 53

52

51

PD4

PD3

PD2

PD1

PD0

(8.0V)

PC7

(0V)

VSS2

(8.0V)

VDD2

PC6

(DO)

4SP2A/NA

50
49
48

50
49
48

47
46
45
44
43
42
41

40
39
38
37
36
35
34
33
32
31

33
32
31

30

29

28

27

26

25

24

23

22

2120

19

18

17

16

15

14

13

12

11

10

9

8

1

2

3

4

5

6

7

100

99

98

100

99

98

97

96

95

94

93

91
92

RF65 1K

RF64 1K

2

3
4
5

6

1

2
3
4
5
6

1

BIF11

CNSD01

+B
+B

+B
+B
+B

CNSF11

+12V(M)

GND(CD)

CD R-CH

CD L-CH

GND(Au)

DISC2NO

UP/DOWN

RWC
WRQ

RES

D2GND

CQCK

SQOUT

COIN

SLD+
SLD–
PUIN

OP/CL

DRF

+7.3V(CD)

CNP11

TO CD SERVO PWB

P23 11-C

CNP12

TO CD SERVO PWB

P23 8-H

CNSF12

BIF12

+B

+B

+B

–B

+B

+B+B

+B

+B

+B

+B

+B

REC L-CH
REC R-CH
PRE L-CH
PRE R-CH

+B

26

25

24

23

22

21

20

18
19

17

16

15

14

13

TA_T1/T2

GND(BIAS)

PB_MUT
TA_BIAS

+12V(A)
GND(A)

REC L-CH

REC R-CH

PRE L-CH

PRE R-CH

+B

1
2
3
4
5
6
7
8
9

10
11
12

M +12V
M_GND

TA_MOT_SW

TA_SOL

T2_A_FP

TA_CAM_SW

T1_RUN
T2_RUN

T2_B_FP

MECHA SECTION

P29 12-C

DECK SECTION

P29 12-D

HIGH_SP

REC_MUT

TA_PB-EQ

TA_R/P

+B

CL

(µCON SIDE DI)

GND(D)

+12V(A)

CE(CE1)

(µCON SIDE DO)

DO

DI

GND(A)

TUN MUTE

L-CH

R-CH

CNSF13

+B

CNP303

TO TUNER PWB

P33 11-H

1

CNPF01

2

3

4

5

6

7

8

9

10

TO DISPLAY PWB

P30 1-D

DATA1

+12V(M)

GND(D)

GND(D)

STB

SCK1

+4.6V(D)

COM1
RESET

VSS

VDD

VDD

CF2

CF1

VSS

RES

COM

DAT

SCK

STB

DS_RES

WRQ

CQCK

DRF

MIC_DET

SP_16K

TUN_SM

9K/10K

POSISTOR

T1_RUN

TAPE_SO

L

HIGH_SP

TA_BIAS

TA_R/P

PB_MUT
TA_T1/T2
REC_MU

T

VSS

VDD

FR SPEED

(

TA MOT

O

CAM_SW
T2_CRO

S

T1_CRO

S

T2_B-FP

S

T2_A-FP

S

SP LEVEL

PUIN

SYS_STOP

SP PROT

FRNT_RL

Y

FAN CON

T

T2_RUN

BEAT_C

U

SLD–

SLD+

COIN

SQOUT

CD MUTE

POWER

CENT MUTE

REAR MUTE

SYS MUTE

TUN_MUTE

B

ENA

CE

SDDIDO

PASS

CL

AMP

SP_4KHz

SP_1KHz

SP_250Hz

SP_63Hz

CENT/REAR RLY

H/P SW

S/N
SRS_A/NA
DOL_A/NA

S.W_ANA

CD UP/DOWN SW

CD DISC No.SW

CD OP/CL SW

RF92

47K

0V

0V

0V

0V

0V

0V

DG06
1SS133

SWF02

SPAN

SELECTOR

QG04
KTA1266 GR

CG08

0.001

10/100

9/50

CD-K449W

ONLY

CD-C449W

ONLY

CD-K449W

ONLY

0V

0V

0V

0V

0V

0V

12.5V

-11.9V

4.1V

3.8V
0V

T1_CRO2
T2_CRO2

– 25 –

CD-C449W/K449W

Figure 25 SCHEMATIC DIAGRAM (4/15)

7

8 9 10 11 12

CU01

2.2/50

CU03

2.2/50

CU05

2.2/50

CU02

2.2/50

CU04

2.2/50

CU06

2.2/50

CU08

2.2/50

CU36

2.2/50

CU35

2.2/50

CU07

2.2/50

RU06

2.7K

RU03

15K

CU11
100P

CU12
100P

RU04 15K

CU10
10/50

ICU01

LC75396N

AUDIO PROCESSOR

CU28

0.027

CU29

0.015

CU31

0.0022

CU27

0.027

CU25

0.22/50

CU30

0.015

CU32

0.0022

CU26

0.22/50

RU09 1K
RU10

1K

RU11

1K

CU34

0.0047

CU41
10/50

CU33

0.0047

CU55
47/16

CU56

47/16

CU52
10/50

CU42
10/50

CU51
10/50

CU43
47/16

CU40
10/50

CU63
100/16

RU14

1K

RU13

1K

CU62
10/50

CU61
10/50

CU64

0.022

DU01

1SS133

DU02

1SS133

CU15

0.47/50

CU16

0.47/50

CU57

2.2/50

RU93

1K

RU94

1K

CU39
10/50

CU09
10/50

RU05

2.7K

CU45

1/50

CU58

2.2/50

CU46
1/50

RU01

470K

CG04

0.01

DG05

1SS133

RG37

1K

RG36

3.3K

QG01

KRC102 M

QG05

KRC104 M

QG03

KTC3199 GR

RG32

100

ZDF01

MTZJ3.3A

RG31
1K

DG02

1SS133

DG04

1SS133

CG03

3.3/50

CG02

0.01

QG02
KTC3199 GR

RG34

10K

RG30

150

RG29

150

CG01

470/10

RG35

1K

RG33
10K

RG39

82

LG01

2.2µH

DG03

1SS133

RF37 1K

RF38 1K

RF39 1K

RF40 1K

RF41 1K

RF42 1K

RF44 1K

RF46 1K

RF49 1K

RF50 1K

RF36 1K
RF35 1K
RF34 1K
RF33 1K
RF32 1K
RF31 1K

RG55 1K

CG56

0.022

CG57

47/25

6

26

RG20

10K

RG21

10K

RG22

10K

RG17

RF99
10K

10K

RG15
10K

RF47 1K

RU22

1K

RU23

1K

RU25 1K

RU26 1K

RU21 1K

CU17

0.18
(ML)

CU21

0.22/50

CU23

0.15
(ML)

CU22

0.22/50

CU24

0.15

(ML)

CU18

0.18
(ML)

RU02
470K

RF1C1

RF1C2

RF1C3

RF2C1

RF2C2

RF2C3

RF3C1

RF3C2

RF3C3

RF4C1

RF4C3

RF4C2

RF5

RTOUT

RFIN

RFCOM

RFOUT

RRIN

RRCOM

RROUT

RVref

Vref

CL

DI

CE

VSS

LVref

LROUT

LRCOM

LRIN

LFOUT

LFCOM

LSELO
(5.0V)

L5
L4
L3
L2
L1
VDD
R1
R2
R3
R4

R5

RINVIN1

RTIN

RSERO

(5.0V)

(5.0V)

(5.0V)

(5.0V)

(5.0V)

(5.0V)

(5.0V)

(5.0V)

(5.0V)

(4.8V)

(0V)

(0V)

(0V)

(4.8V)

(4.8V)

(5.0V)

(5.0V)

(5.0V)

(5.0V)

(0V)

(5.0V)

(0V)

(0.1V)

(5.0V)

(0V)

(0V)

(5.0V)

(5.0V)

(5.0V)

(5.0V)

(5.0V)
(5.0V)
(5.0V)

(5.0V)

LTIN

(5.0V)

LF1C1

(5.0V)

LF1C2

(5.0V)

LF1C3

(4.8V)

LF2C1

LF2C2

(5.0V)

(5.0V)

LF2C3

(4.8V)

LF3C1

(5.0V)

LF3C2

(5.0V)

LF3C3

(4.8V)

LF4C1

(5.0V)

LF4C2

(5.0V)

LF5

(5.0V)

LF4C3

(4.8V)

LTOUT

(5.0V)

LFIN

(5.0V)

CD GND(D1)
GND(D)

CD GND(D2)

+7.3V(CD)
+12V(M)

+4.6V(D)

AUX 2

CD GND(D1)
GND(D)

CD GND(D2)

+7.3V(CD)
+12V(M)
+4.6V(D)

GND(A)

GND(A)

TO PRE SECTION

P28 2 H

RESET
POINT

+4V

GND(µ-CON)

+4V(µ-CON)

+4V

–15V

+12V(A)

+12V(A)
–12V

GND(A)
GND(D3)

OUT(L)
OUT(R)

GND(M)

GND(BIAS)

REC L-CH

REC R-CH

(CON SIDE DO)
(0V)

45

48

47

46

44

43

42

41

49

40

39

38

37

36 35

34 33

32

31
30
29
28

27

26

25

24

23
22
21
20
19
18
17

16

15

14

1312

11

10

9

8

7

6

5

4

3

2 1

TO PRE SECTION

P28 6-H

PRE SECTION

P27 8-H

PRE SECTION

P26 1-B

1

2

3

+B

+B

+B

+B

–B

+B
–B

40

41

42
43
44
45
46
47
48
49

36
37
38
39

50
51
52
53

54
55
56
57
58
59

60
61
62

63
64
65
66
67
68

POWER

SP PROT
POSISTOR
H/P SW
SP LEVEL
FAN CONT

S-MUTE

CL
DI
CE

FRNT RLY(1)

AMP

69

1
2
3
4
5
6
7
8
9

GND(A)
+12V(A)
OUT(R)
IN(R)
GND
MIC

V, CAN

IN(L)

OUT(L)

+B

MAIN PWB-A(1/ 4 )

35

34

33

L-CH OUT

GND(A)

R-CH OUT

VOLUME

OUT

50
51
52

53
54
55

64

63

62

61

56
57
58
59
60

+B
–B

32

31

30

29

28

27

R-CH OUT

L-CH OUT

R-CH OUT

L-CH OUT

VIDEO2 IN VIDEO1 IN

PE_SOL

IGH_SP

A

_BIAS

A

_R/P

B_MUT

A

_T1/T2

EC_MUT

SPEED(M)

A

MOTOR

AM_SW

_CRO S
_CRO S
_B-FP S
_A-FP S

NT_RLY

N CONT

EAT_CUT

MP

(5.0V)
(5.0V)
(5.0V)
(5.0V)
(5.0V)

(5.0V)

(5.0V)
(5.0V)
(5.0V)
(5.0V)

(10.1V)

PLAYBACK SIGNAL
RECORD SIGNAL
CD SIGNAL

FM SIGNAL

4.0V

0.4V

4.0V

4.0V

0V

0V

0V

0V

0V

CNSU02

FROM

KARAOKE PWB

P36 3-A

RU24

1K

CNPU02

0V

0V

4.1V

IN(L)
IN(R)

GND(A)
+12V(A)

PASS
SRS A
SRS B
SRS INH

CD-K449W
ONLY

CD-C449W
ONLY

CD-C449W/K449W

– 26 –

Figure 26 SCHEMATIC DIAGRAM (5/15)

A

B

C

D

E

F

G

H

1

23456

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

ICS01

SRS5250AS

SRS

CS14

100/16

CS15

100/16

CS16

0.047
(ML)

CS18

0.0047

RS29

33K

RS28
100K

RS27

3.9K

RS26

1.5K
RS30

4.7K

RS23

2.2K

RS13

4.7K

QS14

KRC107 M

CS12

2.2/50

CS11

2.2/50

RS14

100K

RS16
1K

RS15

1K

Q

S

2SK2

4

CS13

100/16

RS33
100K

RS34
100K

RS20

10K

RS22

10K

RS18

10K

QS11
KRC107 M

QS12

KRC107 M

QS13

KRC107 M

QS15

KTC3203 Y

CS22

4.7/50

RS12

1K

CS21

4.7/50

RS11

1K

RS32

1.5K

QS16
2SK246 G

R

DS03

1SS133

CS19

0.33/50

RS31

4.7K

CS17

0.47/50
(ML)

RS25

47K

RS24

22K

RP27

8.2K

4

3

2

1

RP22

100

RP21

100

8

5

6

7

RP18

8.2K

RP17

8.2K

CP19

0.082
(ML)

CP20

0.082
(ML)

CP15

0.082
(ML)

CP16

0.082
(ML)

ICP11

(1/2)

CP07

100P

CP08

100P

CP18

47P

CP17

47P

RP16

100K

RP15

100K

RP12

100

RP11

100

QP11
KTC3199 GR

QP12
KTC3199 GR

CP26

0.001

CP25

0.001

RP30

5.6K

RP29

5.6K

RP73

22K

RP28

8.2K

CP27

0.022

CP57
22/25

CP28

0.022

CP23
10/16

RP25

1K

CP24

10/16

RP26

1K

RP20

2.2K

RP19

2.2K

CR13

390P

CR14

390P

RR17

2.7K
RR18

2.7K

CR11

390P

CR12
390P

RR13

1.8K
RR14

1.8K

JR12

JR11

CR10

0.001

RR16

27K

RR15

27K

RR11

27K

RR12

27K

DR11

1SS133

DR12
1SS133

RP09

100K

RP10

100K

VCC

PN_IN

L_IN

R_IN

MODE

C_OUT

C_IN

CL3

CL4

CL2

CL1

Vref

L_OUT

CR1

SRS INH

TO MAIN SECTION

P25 12-C

GND(A)

SRS PASS

OUT(R)

OUT(L)

IN(R)

IN(L)

–

+

+

–

ICP11

(2/2)

R CH

L CH

INPUT

VIDEO/AUX-2

INPUT

VIDEO/AUX-1

GND(A)

GND(A)

VF1

VF1

VF2

VF2

–38(VP)

–38(VP)

0V

0V

3.7V

1

2

3

0V

0V

12.5V

12.5V

0V

0V

1.9V

0V

0V

12.6V

12.5V

1

2

3

1

2

3

1

2

3

5.9V

0V

5.9V

5.9V

5.9V

5.9V

5.9V

0V

5.9V

5.9V

5.9V

5.9V

11.9V

5.9V

5.9V

0V

0.7V

0V

0V

0V

0V

0.7V

11.8V

0V

0V

0V

0V

–11.2V

0V

0V

1234

5

6

7

8

9

10 11 12 13 14

1516

17

18192021

222324

25

26

27

28

5.9V

1

WTP02

1

WTP01

2

2

3

3

60

61

62

63

64

66

69

68

SRS B

67

SRS A

65

+12V(A)

+B

+B

+B

D

S

G

M

S-MUTE

+B

–B

ICP11

NJM4565M

BUFFER AMP.

43

S-MUTE

33

34

35

303132

272829

R-CH IN

GND(A)

L-CH IN

L-CH

L-CH

R-CH

R-CH

VIDEO-1

L-CH

R-CH

L-CH

R-CH

TO DISPLAY PWB

P30 1-B

FWD02

TO POWER PWB

P35 8-H

FW901

MAIN PWB-A(3/4)

11.9V

CR2

CR3

CR4

S_OUT

S_IN

C6

C5

C4

C3

C2

C1

PN_OUT

GND

R_OUT

VIDEO-2

TO MAIN SECTION

P25 7-H

TO MAIN

SECTION

P25 10-H

– 27 –

CD-C449W/K449W

Figure 27 SCHEMATIC DIAGRAM (6/15)

7

8 9 10 11 12

TO PRE SECTION

P25 12-A

CS12

2.2/50

RS16
1K

QS18
2SK246 GR

RS36

1K

QS17

2SK246 GR

RS35

4.7K

DS01
1SS133

DS02

1SS133

RS32

1.5K

QS16
2SK246 GR

DS03

1SS133

CS19

0.33/50

Q

P11

KTC3199 GR

12

C3199 GR

CP26

0.001

CP25

0.001

RP30

5.6K

RP29

5.6K

RP73

22K

RP32

150

(1/4)

RP31
150
(1/4)

CP09

100/16

CP27

0.022

CP57
22/25

QP17

KRC107 M

CP28

0.022

3

ICR11

GP1F38T

1
2

CR03

0.001

RR01

100

ZDR01
MTZJ3.3B

LR0

2.2µH 1
(DH)

CR01

0.022

CR02

100/10

CR1

+12V(M)

+4.6V(D)

GND(A)
+12V(A)

GND(M)
+4.6V(D)
GND(D)
+7.3V(CD)
CD GND(D1)

OUT1(L-CH)

RELAY1

H/P SW

GND(A)

OUT1(Lch)

OUT2(Rch)

POSISTOR

AMP

PROT

POWER
GND(D3)

RELAY2

DIGITAL-OUTPUT

–12V(A)

5

.

9V

5.9V

0V

5.9V

5.9V

0V

5.9V

5.9V

0V

5.9V

5.9V

0V

0V

3.7V

1

2

3

0.7V

0.7V

12 13 14

1516

17

11

10

9

8

3

CFWP01

4

1
2

5
6
7

3
2
1

1

CNPP01

11

10

9

8

2
3
4
5
6
7

D

S

G

D

S

G

D

S

G

0V

+B

MAIN PWB-A(2/4)

CNPR11

DOUT
+4.3V

CNS99

FROM CD SERVO PWB

P23 11-C

FWP01

FAN SW

+12V(M)

GND(M)

GND(A)

H/P SW

FAN CONT

SP LEVEL

POSISTOR

PROT

AMP

OUT1(FRONT L-CH)

OUT2(FRONT R-CH)

FRNT RLY(1)

12
13
14

+B

TO POWER PWB

P34 3-H
CNS901

+B
+B

+B

–B

CD GND(D1)

FRNT RLY(1)

FAN CONT

SP LEVEL

H/P SW

PROT

POSISTOR

AMP

+12V(M)

GND(M)

+4.6V(D)

GND(BIAS)

+7.3V(CD)

POWER

GND(D3)

59 50

37395741544042454446474849

–12V

+12V(A)

GND(D)

+B

+B

–B

CP10

100/16

S-MUTE

55

585638

43

+12V(A)

GND(A)

–12V

GND(D)

S-MUTE

TO SPEAKER AMP.PWB

P34 1-B

CFWV11

CR2

CR3

CR4

GND

R_OUT

GND

+12V(M)

+B

GND(A)

FAN CONT

OUT2(R-CH)

SP LEVEL

FM SIGNAL

CD-C449W/K449W

– 28 –

Figure 28 SCHEMATIC DIAGRAM (7/15)

A

B

C

D

E

F

G

H

1

23456

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

1

24

23

2

3

4

5

22

21

20

18

7

6

19

PHM1

M

FWM2

SWM4

REC RVS

SOLM1

SOL

SWM3

REC FWD

SWM6

CAM SW

VRM1

3.3K(B)

RM1

2.7K

RK13

10K

CK09

0.022
RK14

10K

QK10

KRC104M

QK11

KRC104M

CK01

680P

CK02
680P

RK29

10K

CK25

0.0082

CK23

0.1

CK21

1/50

CK13

330P

CK12
330P

CK22

1/50

RK30

10K

CK26

0.0082

QK13

KRC104 M

CK33
22/25

CK31

470P

CK29

470P

RK37

6.8K

RK35

3.3K

RK33

22K

CK34
22/25

RK38

6.8K
CK32
470P

CK30
470P

RK36

3.3K

CK27

0.022

CK24

0.1

CK28

3.3/25

RK47

10K

RK34

68K

RK18

1K

RK17

1K

RL20

1.2K

RK19

56

RK21

100K

RK23

3.9K

RK25

5.6K

RK31

33K

CK19
560P

CK17

0.033

CK15
47/16

CK11
330P

RK32

33K

RK20

56

RK24

3.9K

RK22
100K

RK26

5.6K

CK20
560P

CK18

0.033

CK16
47/16

CK14
330P

RK01

1K

RK02

1K

RK10

4.7K

RK09

4.7K
RK07

47K

RK08

47K

QK08

KTC3199 GR

QK07

KTC3199 GR

CK07

0.001

CK08

0.001

QK09

KTA1266GR

RK69

220

RK15

4.7K

CK60

100/16

RK11

15K

RK89

1K

CK05
330P

RK90

1K

CK06

330P

QK06

2SC1845 F

QK04

2SC1845 F

RK06

3.3K

RK04

2.2K

QK05

2SC1845 F

QK03

2SC1845 F

RK05

3.3K

RK03

2.2K

RK12

15K

QL11

KTA1266 GR

RL11

33K

QL17

KRC104 M

RL12

2.2K

RL13

6.8K

QL12

KTA1266 GR

RL14

33K

QL13

KRC104 M

QL14

KTA1273 Y

RL15

10K

RL16

2.2K

QL18

KRC104 M

CL12
47/16

QL15

KTA1271 Y

RL17

10(1/2W)

DL12

1SS133

RL18

10K

RL19

2.2K

REC

REC

PLAYBACK HEAD

TAPE1

HIGH=CHRO

M

HIGH=T1

–
+

112K

-

+

112K

REC

T2 B-FP

T2 PH-OUT

T1 RUN-SW

M2GND

CUM SW

T2 A-FP

MOT +B

MOT H

MOT L

+B

MOTOR

MM1

H

L

2

+

L

H

MOT+B

M2GND

F.A.S

RUN PULSE

SOL

REC FWD

CAM SW

REC RVS

SOL

+B

1

WTL11

2

3
4
5
6

7
8

9

10
11
12
13

12
13

2

3

4

5

6

7
8
9

10
11

1

2

3

4

5

6

7

1

CNPK02

CNSK02

1

CNPK01

1

CNSK01

2

2

3 3

TAPE MICHANISM PWB–H

SWM5
F.A.S

FWM1

PLAYBACK SIGNAL
RECORD SIGNAL

1

2

3

1

2 3

1

2

3

1

2

3

1

2 3

L-CH

R-CH

DL14

1SS133

DL13

1SS133

DGND

RK27

8.2K

2

1

QK14

KRC104 M

RK28

8.2K

2

1

3

3

TAPE MECHANISM ASSEMBLY

BI102

6

5

4

3

2

1

1

7
6
5
4
3
2

TAPE2 HEAD

PWB-G

ERASE

HEAD

R-CH L-CH

RECORD/
PLAYBACK HEAD

TAPE2

1

13

0V

0V 0V

0V

0V

0V1.3V

0.8V

0V 0V 0.6V

0.5V

3.2V

3.0V

0V

0V

0V

0.7V

0.7V

0V

0V

0V

0.7V

0.7V

0V

0V

0V

9.1V 9.2V

0V

0V

0V

0V

0V

3.9V

0V

0V

0V

12.5V
0V

0V

0V

0V

12.6V

0.26V

0V

0V

0V 4V

3.8V

12.6V

12.6V

12.6V

0.26V

0.26V

0V

0.26V

0.26V

0V

0V

0V

0V

0V

0V

0V

PB EQ CrO2

– 29 –

CD-C449W/K449W

Figure 29 SCHEMATIC DIAGRAM (8/15)

7

8 9 10 11 12

12

11

15

14

13

16

9

10

8

18

7

17

RK57

4.7K

QK19

KRC104 M

CK41
47/25

CK46

220/10
CK45
22/25

2

RK50

10K

RK58

470

ICK01

PLAYBACK AND RECORD/PLAYBACK AMP.

AN7345K

QK15

KRC104 M

CK37

0.018

CK10
47/25

CK35

0.022

RK41

82

LK01

1.8mH

CK33
22/25

RK39

560

CK31

470P

CK29

470P

CK39

0.0033

CK42
47/25

CK34
22/25

QK16

KRC104 M

CK38

0.018

CK36

0.022

8

CK32

470P

CK30
470P

6

CK47

0.022

RK45 10K

RK49 10K

CK40

0.0033

RK47

10K

CK44

0.022

CK43

0.022

QK18

2SC2878 A

RK48

10K

RK43

10K

QK17

2SC2878 A

RK46

10K

RK52

1K

QK24

KTA1266 GR

QK25

KTA1266 GR

QK27

KRC104 M

QK40

KRC107 M

QK29

KRC107 M

QK30

KRC104 M

RK62

47K

RK72

27K

RK64

4.7K

LK03

1mH

RK63

10K

RK65

10K

RK81

6.8K

QK26

KRC104 M

QK21

KTC3199 GR

RK56

33K

RK61

270

RK42

82

RK40

560

LK02

1.8mH

CK55

0.022

CL13

3.3/50

RL24

3.3K
QL16

KRC107 M

DL11

1SS133

RK68

4.7

LK04

330µH

CK51

0.027(ML)

CK52
47/16

QK28

2SC2236 Y

CK50

0.0082(P.P)

RK66

27K

RK67

47K

CK62

0.047

RK73

27K

RK55

33K

QK22

KTC3199 GR

RK54

10K

RK53

10K

7
4 M

QL18

KRC104 M

QL19

KRC104 M

PB.MUTE

GND(A)

12V(A)

HIGH=CHROME

NOR/CrO

VCC

RIPPLE

ALC

ALC GND

HI.SP

–

+

56K

+
–

56K

HI.SP

HI.SP

BIAS

T12CRO2

TA2CAM2SW

T22B2FP

T12RUN

T22A2FP

M2GND

T22RUN

GND(BIAS)

TA2F/R SPEED

TA2MOT2SW

M212V

TA2SOL

MAIN SECTION

P24 1-G

MAIN SECTION

P24 1-G

3

1

2

3

1

2

3

1

2

3

3

4

1

5
6

7
2

8

9

10
11
12

TA_CAM_SW

T2_A_FP

M_GND
T1_RUN

T2_RUN

TA_F/R SPEED

TA_SOL

TA_MOT_SW

M_12V

T2_B_FP
T1 Cro2

T2 Cro2 H:Cro2

L: NORM

PB.MUTEH:ON L:OFF
PRE L-CH

HI. SP H:LOW L:HIGH
PRE R-CH

TA T1/T2H:T1 L:T2

13
14
25

16
26

22

21

15

BIAS H:ON L:OFF

RK75

82K

RK74

82K

1

1

1

1

1

2

2

2

2

2

3

3

3

3

3

RK60

270

TA R/P@H:PB L:REC

TA BE EQ L:NORM
H:Cro2

REC L-CH

REC R-CH

REC MUTE

1

2 3

1

2

3

1

2

3

MAIN PWB-A(4/4)

23

24

17

18

20

19

0V

0V

0V

0V

0V

0V

0V

0V

5.4V

5.4V

5.4V

0.3
V

0.3V

0.27V

0.26V

V

0.6V

3.0V

0.6V

0V

3.0V

3.1V

0V 0V

3.8V 6.3V

0.3V

0V

0.3V

0V

0V

0V

0V

0.7V 0.7V

12.6V

12.5V

0.3V

4.1V

0V

0V

0V

12.5V

0V

12.5V

0V

0V

2.5V
0V

0V

V

4V

0V

0V

3.8V

3.8V

0V

0V

0.7V

0V

0V

0V

0.7V

0V

CD-C449W/K449W

– 30 –

A

B

C

D

E

F

G

H

1

23456

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

Figure 30 SCHEMATIC DIAGRAM (9/15)

CD30

1/50

CD29

1/50

CD28

1/50

2

1

3

RD57

39

CD10

220/6.3

CD11

0.022

RXD01

REMOTE

CONTROL

SENSOR

CD09

150P

LEDD02

KL052UL

LEDD03

SLR505MC

LEDD01

KL052UL

LEDD06

SLR325MG

LEDD05

SLR325MG

QD05 KRC107 M

RD52

560

LEDD07

SLR325VR

LEDD08

SLR325MG

LEDD10

SLR325VR

LEDD11

SLR325MG

LEDD12

SLR325MG

LEDD13

SLR325VR

RD19

1K

RD02

1K

RD01

1K

RD05 1K
RD06 1K

RD07 560

RD04 1K

RD03

1K

RD08 1K

RD10 1K

RD09 560

RD13 560

RD14 1K
RD15 1K

RD11 560

RD12 1K

RD17 1K

RD16 1K

RD2

1K

QD03

KRC107 M

RD50

820

QD02

KRC107 M

RD49

1.2K

QD01

KRC107 M

RD48

1.2K

QD04

KRC107 M

LEDD04
KL052UL

RD51

1.2K

QD06
KRC107 M

RD53

1K

LEDD14

SLR325MG

LEDD15

SLR325MG

LEDD16

SLR325VR

LEDD18

SLR325MG

LEDD19

SLR325MG

LEDD17

SLR325VR

CD21 150P

CD20 150P

CD19 150P

CD18 150P

QD08

KRC107 M

RD55

820

QD07

KRC107 M

RD54

1.2K

LEDD20

KL052UL

LEDD21

SLR505MC

RD21

1K

RD22

1K

DD01

1N4004S

DD02

1SS133

RD59
100K

RD58

100K

VSS
VDD

DATA1

COM1

SCK1

P17

P30

P31

P32

P33

P34

74757677787980

81

81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100

SI1

P16

SCK1

SO1

SCK0

SI0

SO0

P07

P06

P05

P04

VDD2

VSS2

P03

P02

P01

P00

PG3

PG2

PG1

PG0

S46

S45

S44

S43

S42

S41

S47

S2

S1

S2

S1

F1

F1

NC

NC

FF

STROBE

R-PLAY

DISK 1

VIRTUAL-G
VIRTUAL-R

PHANT-G

SRS-R

SRS-G

PHANT-R

NORMAL-G

NORMAL-R
STEREO-G
STEREO-R

PAUSE

GND(D)

+4.6V(D)
+12V(M)

COM1

DATA1

STB

SCK1

RESET

F-PLAY

STOP

(YELLOW)

F-PLAY

(YELLOW)

STOP

(GREEN)

FF

(YELLOW)

PAUSE

LEDD09

SLR325MG

R-PLAY

REW

REW

2 3

4

5

6

7

100

CNSD01

1

2

3

4

5

6

7

8

9

10

1 2 3 4

5

6

CV91

100

CV92

100

JV91

HEADPHONE

LV91

2.2µH(XH)

RV91

220

RV92

220

X2

HEADPHONES PWB-C3

FWV91

1

5

1

5

HP-LCH

HP-RCH

H/P SW

GND(M)

GND(A)

TO SPEAKER

AMP.2 PWB

P35 12-C

WTV11

FM SIGNAL

VF2

VF1

–38(VP)

FWD02

1

3 1 3

TO MAIN PWB

P26 1-E

WTP01

CNPF01

FROM MAIN PWB

P24 1-B

+B

+B

+B

1

2

3

+B

1

2

3

1

2

3

1

2

3

3

2

3

1

2

3

1

1

2

1

+B

+B

+B

2

1

3

CD05

0.001

RE01

8.2K

RE11

8.2K

RE21

8.2K

RE31

8.2K

KEY1

KEY2

KEY3

KEY4

SWD03

X-BASS

SWD12

TUNING UP/CUE

SWD14

NORMAL EDIT

SWD15

HIGH EDIT

SWD16

REC/PAUSE

SWD17
F-PLAY

SWD30

RE13

1.2K

RE14

1.8K

RE15

2.2K

RE16

3.9K

RE22

1K

SWD13

STOP

RE12

1K

SWD07

SOFT

RE02

2.2K

RE04

3.9K

RE06

3.9K

/REWIND

TUNING DOWN

SWD18

SRS/DEMO

RE17

5.6K

RE32

1K

SWD31

RE33

1.2K

SWD32

CD

PAUSE

REVERSE

MODE

RE34

1.8K

SWD33

R-PLAY

RE35

2.2K

CLOCK

RE36

3.9K

MEMORY

SWD34 SWD35

RE37

5.6K

SWD36

TIMER

RE38

12K

SWD37

SLEEP

RE39

27K

SWD38

CLEAR

SWD22

BALANCE LEFT

SWD21

BALANCE RIGHT

SWD08
VOCAL

SWD09

HEAVY-2

SWD10

HEAVY-1

RE07

5.6K

RE08

12K

SWD11

FLAT

RE09

27K

(

0

(0V)

(0V)

(0.6V)
(10.8V)

(10.8V)

(–6V)

(4.0V)

(0V)

(10.8V)
(9.0V)
(0.4V)

(0V)
(0V)

(0V)
(0V)

(4.0V)

(4.1V)

(0.6V)

(0.6V)

(0V)

(0V)

(0V)

(0V)

(0V)

(0V)

(0V)

(0V)

(0V)

(0V)

(0V)

(–28V)

(–30V)

– 31 –

CD-C449W/K449W

7

8 9 10 11 12

Figure 31 SCHEMATIC DIAGRAM (10/15)

52

XD01

LD01

2.2µH

CD06

0.001

SWD01

VOL JOG

CD07

0.001

CD08

0.001

SWD02

JOG

CD02

100/10

RD36

1K

RD40

1K

RD39

1K

RD41

1K

RD42

1K

RD44

1K

RD38

1K

RD37

1K

RD43

1K

RD35

1K

RD34 820

RD33

1K

RD32

1K

RD31

1K

ICD01

IX0234AW

LF DRIVER AND

CONTROLLER

RD64

10K

RD65

10K

RD60

10K

RD61

10K

RD45

1K

LEDD25

LEDD26

LEDD27

LEDD28

LEDD23

LEDD24

RD70

820

RD71

820

RD72

820

QD12

KRC107 M

QD11

KRC107 M

QD10

KRC107 M

RD28

1K

RD30

47K

FLD01

FL DISPLAY

RD27

1K

RD66

8.2K

RD62

8.2K

RD67

2.2K

D01
1K

RD26

1K

SWD53

DISC
SKIP

SWD52

DISC3

SWD51

DISC2

SWD50

DISC1

RE56

3.9K

RE55

2.2K

RE54

1.8K

SWD54

OPEN/CLOSE

RE57

5.6K

CD01

0.022

REMOCON

VDD

VSS

JOG DOWN

JOG UP

VDD

–29(VP)

XCOUT

XCIN

VOL JOG DOWN

VOL JOG UP

P30

P31

P32

P33

P34

P35

P36

P37

INT0

/RES

P74

P75

VSS1

CF1

CF2

VDD1

AN0

AN1

AN2

AN3

AN4

AN5

AN6

AN7

INT1

INT2

INT3

S0

VDD3

S1

S3
S2

31

S4

S5

S6

S7

S8

S9

S10

S11

S12

S13

S14

S15

VP

S16

S17

S18

S19

50

5153545556575859606162636465666768697071727374757677

8

81

49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31

SCK1

PG0

S45

S44

S43

S42

S41

S40

VDD4

S39

S38

S37

S36

S35

S34

S33

S32

S31

S30

S29

S28

S27

S26

S25

S24

S23

S22

S21

S20

RESET

VDD

DISC2

DISC1

DISC3

DISC 3

DISC 2

DISC 1

DISC 1

DISC 2

DISC 3

G12

G12

G11

G10

G9

G8

G7

G6

G5

G4

G3

G2

G1

S27

S26

S25

S23

S22

S21

S20

S19

S18

S17

S16

S15

S14

S13

S12

S11

S10

S9S8S7S6S5

S4

S3S2S1

S19

S27

S26

S25

S24

S23

S22

S21

S20

S18

S17

S16

S15

S14

S13

S12

S11

S10 S9S8S7S6S5S4

S3S2S1

F1

NC

NC

KEY4

KEY1

KEY2

KEY3

KEY5

KEY6

TUN-SET

AUD-SET

R PLAY

FL-SET

DISK 1

DISK 2

DISK 3

AL-G
AL-R

T-G

R

G

T-R

MAL-G
MAL-R

EO-G
EO-R

S24

LEDD23~LEDD28

LMKD515B

1G

2G

8G7G6G5G4G

3G

9G

10G

11G

12G

NCNCF2

F2

REW

3

4

5

6

7

8

9

100

50

2 3 4

5

6

7

8

9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

+B

+B

+B

1

2

3

1

2

3

1

2

3

+B

FWD01

1 6

6 1

SWITCH PWB-C2

DISPLAY PWB-C1

SWD39

VIDEO/AUX1

SWD40

VIDEO/AUX2

SWD41

TAPE

1/2

SWD42

TUNER/BAND

SWD43

CD

RE42

1K

RE43

1.2K

RE44

1.8K

RE45

2.2K

RE53

1.2K

RE52

1K

SWD48
POWER

RE41

8.2K

RE51

8.2K

KEY5

KEY6

C

D05

0

.001

RE01

8.2K

RE11

8.2K

RE21

8.2K

RE31

8.2K

KEY1

KEY2

KEY3

KEY4

+B

SWD49

KARAOKE

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

JOG PWB-C4

(0V)

(0V)

(0.6V)
(10.8V)

(10.8V)

(–6V)

)

(10.8V)
(9.0V)
(0.4V)

(0V)

V)

1V)

(0.6V)

(0V)

(0V)

(0V)

(0V)

(0V)

(0V)

(0V)

(0V)

(4V)

(4V)

(4V)

(4V)

(4V)

(4V)

(4V)

(4V)

(4V)

(4V)

(4V)

(3.5V)

(0V)

(0V)

(0V)

(0V)

(0.4V)

(1.7V)

(1.9V)

(0V)

0V

(0V)

(–29V)

(–29V)

(–29V)

(–29V)

(–29V)

(–29V)

(–29V)

(–29V)

(–29V)

(–29V)

(–29V)

(–29V)

(–29V)

(–29V)

(–26V)

(–30V)

(–21V)

(4.0V)

(–30V)

(–30V)

(–26V)

(–28V)

(–23V)

(0V)

(0V)

(0V)

(0V)

(0V)

(0V)

(0V)

(–28V)

(–28V)

(–28V)

(–28V)

(–28V)

(–26V)

(–30V)

(–30V)

(–30V)

(–30V)

(–30V)

(–30V)

(–30V)

(–30V)

(–30V)

(4.1V)

(–21V)

CD-K449W

ONLY

CD-C449W/K449W

– 32 –

A

B

C

D

E

F

G

H

1

23456

Figure 32 SCHEMATIC DIAGRAM (11/15)

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

RT03
22

RT10

4.7K

RT08
10K

CT15

0.022

RT04
47

C309
330P

C310

0.001

R311
100K

L311
560µH

Q

CT13

3.9P(UJ)

C390
100P

VDT02

KDV147B

C338

0.001

C301

0.001

C349

1/50

C321

0.0039

D317

1SS135

R326
1K

R302
82

R316
22K

D316
1SS135

LT02

SW2 OSC

T308

MW OSC T306

TT01

T302

T303

SW1 ANT

T304

SW2 ANT

C307

0.047

TC302

C308 (UJ)

8.2P

TC303

Q308
2SC2878 B

Q309
2SC2878 B

R314

3.3K

R312
33K

VD302-B

KV1236Z23F

D309
1SS135

D310
1SS133

D311
1SS135

R315

22K

R313

22K

C311

0.022

D315

1SS135

D314
1SS133

D313
1SS133

D308
1SS135

D307 1SS135

D306
1SS135

D305
1SS135

CT03

4.7P

RT06
10

CT04

0.001

VDT01

KDV147B

1DT01

SS133

ICT01A TA7358AP

CT16
10/16

LT01

CT02

0.01

CT01
18P(CH)

FM BAND PASS

BFT01

D302
1SS133

D301
1SS133

0.047

C305

C304

0.022

C303

0.022

C314

0.022

R317
10K

R330
1K

R325
56K

C320

0.0018

R329
100K

C319

0.022

VD302-A
KV1236Z23F

R328

10K

C318

0.022

R322

5.6K

C316

0.1

R320
10K

R318

1.5K

R324
100K

R319
100K

C331

0.047

VD301-1
KV1236Z23F

C342

0.022

VR351
10K(B)

D304
1SS133

D303
1SS133

R321

5.6K

1SS133

D312

C315

0.1

VD301-2
KV1236Z23F

C336
470P

R323
68K

R327

5.6K

Q307

2SC2878 B

TC304

Q306
2SC2878 B

TC305

RT09
820

L356
1mH

R341
47K

Q364

KRA107 M

Q362

KRA107 M

Q363

KRA107 M

R342
47K

R343
47K

C312

0.022

C313

0.022

0V

0V

0V

0V

0V

0V

0V

0V

0V

12.18V

0V

0V

0V

0V

CF302

10.7MHz
FM1F

R310
22K

C335

18P (CH)

R340

220

R339

470

R338

470

RT02

33K

RT01
100K

QT01
2SC535 C
AMP

RT07
680

RT05
47K

CT10

0.022

CT09

0.0047

CT08 0.0047

CT07 0.001

CT06 0.022

98

7

6

5

4321321

CT12
33P

RF

MIX

B.A

OSC

VCC

FM FRONTEND

SW1 OSC

T307

MW ANT

SW2+B

SW1+B

MW+B

CT14
22P(CH)

CT11
15P
(CH)

CT05

6.8P
(UJ)

+B

+B

fH

fL

fL

fH

fL

fL
fH

fH

321

3

1

FM MUTE
LEVEL

MW TRACKING

FM

75ohms

SW2
TRACKING

SW1
TRACKING

SW1
TRACKING

SW1 BAND
COVERAGE

MW BAND
COVERAGE

FM BAND
COVERAGE

FM
OSC

FM SIGNAL MW/SW1/SW2 SIGNAL

SW1
SW2

MW

GND

SO301

ANTENNA

TERMINAL

FILTER

FMRF

FMIF

+B

3

2

1

3

2

1

3

2

1

C334
18P
(UJ)

C330

8.2P
(UJ)

C306
10P (UJ)

– 33 –

CD-C449W/K449W

7

8 9 10 11 12

Figure 33 SCHEMATIC DIAGRAM (12/15)

Q361

KRC107 M

Q365
KRC107 M

C343
15P (CH)

R396
1K

R398 1K

R397
1K

C397

0.022

CF352

AM IF

T351

R352
1K

R371 1K
R372 1K

R373 1K
R374 1K

C380

1/50

R390
82K

C383

0.0022

D353

1SS133

X351

456kHz

C365 0.022

C363 0.022

C364 10/16

C355

22P

Q354
KTC3199 GR
MUTING

MUTING
Q353
KTC3199 GR

10K
R365

R367
1K

C375

3.3/50

R368
33K

R357

470K

R356

1K

C368

1/50

R350

2.7K
C367

1/50

C366 0.001

C398

100/10

C399

0.022

270

R353

C354

0.022

C353

0.022

C342

0.022

VR351
10K(B)

C350

0.022

IC303
LA1832
FM IF DET./FM MPX./AM IF

C373

0.022

C374

0.022

R361

5.6K

R362

5.6K

C371
1/50

C372
1/50

R359

1.8K

R382
150

R381
10K

R380

1.5K

R379

2.2K

IC302
LC72131
PLL CONTROLLER

X352

4.5MHz

D352 1SS133

R366
10K

C394
47/16

C393

2.2/50

R384

5.6K

R383

5.6K

L351
100µH

C385

0.01

R393 1K

C370

1/50

L352
100µH

R391
390

R392
390

ZD351
MTZJ4.7B

C396
100/10

C395

0.022

R377
47K

C392

0.001

C387

0.022

R376

1K

R360

4.7K

C391
47/16

Q360
KTA1266 GR

R385

5.6K

ZD352
MTZJ3.9B

R387
22K

D351
1SS133

C381
12P (CH)

C382
15P (CH)

356
mH

R395
47K

C386

330P

C351

0.022

R351

5.6K

2.06V

5.01V

2.07V

2.06V

0V

0.65V

0.65V

11.6V 12.18V

11.37V

0V

0V

0V

0V

2.52V

2.52V
0V

0V

0V

4.82V

5.1V

0.16V

12.1V

3.85V

3.95V

5.1V

2.38V

0V

0V

0V

2.48V

5.11V

0.9V

0.9V

2.1V

0V

5.09V

5.09V

2.84V

5.01V

3.68V

3.85V

3.85V

3.95V

1.18V

1.19V

2.05V

2.29V

2.52V

0V

0.46V

2.2V

2.2V

5.01V

3.48V

C352

10/16

L353
1mH

R358

8.2K

C362

3.3/50

C361

0.022

L357

4.7mH

L358

560mH

C360

0.022

CF302

0.7MHz
FM1F

C356

0.001

R354

4.7K

C357

2.2/50

R355

3.3K

C358
1/50

1

11

121314151617202122 1819

10

98

7

6

5

4321

11

10

9876

5

432

131415161718192021222324

12

11

10

9

8

7

6

5

4321

CNP303

R363

1.5K

R364

1.5K

IF IN

STEREO

MO/ST

SW2

AM IN

FM IN

VDD

PD

AIN

CEDICLDOFMMWSW1

MO/ST

L-CH

OUT

R-CH

OUT

MPX IN

MPX VCO

FM/AM OUT

AM LOW CUT

VSM

AM RF IN

FM AFC

AM OSC IN

AM OSC OUT

FM IF IN

AM IF IN

AM MIX OUT

REG

GNDSDSTEREO

FM DET

VCC

IF OUT

PHASE

PHASE

(FM/AM)

NC

NC

TP 302

AOUT

VSS

X IN

X OUT

GND(D)

CLDOCEDI+12V(A)

GND(A)

TUNER MUTE

L-CH

R-CH

SD

+B

+B

FROM MAIN PWB

P24 1-E

CNSF13

+B

3

2

1

+B

FMIF

321

3

2

1

3

2

1

MUTE

VEL

AMIF

CF351

FMIF

TUNER PWB-E

+B

CD-C449W/K449W

– 34 –

A

B

C

D

E

F

G

H

1

23456

Figure 34 SCHEMATIC DIAGRAM (13/15)

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

RV21

56K

RV17

1K

CV17
47P

RV31

1K

RV29

0.2(1W)

RV25
100(1/2W)

CV

2

47/

5

QV19
KTC3199 GR

DV15

1SS133

QV18

KTC3199 GR

ICV01
POWER AMP.
STK407-09

RV36

22K

RV35

2.2K

QV17

KTA1268 GR

RV69

0.2(1W)

13

14

9

3

7

FR

14

13

12

11

10

9

8

7

6

5

4

3

2

1

CFWV11

CV30

3300/63

CV29
3300/63

CV18
47P

RV18

1K

CV14

2.2/50

CV12

2.2/50

RV32

1K

RV30

0.2(1W)

CV26

0.022
RV28

10K

QV14

KTC3200 GR

DV14
1SS133

RV70

0.2(1W)

11

10

4

5

6

1

2

8

12

15

ICV01

POWER AMP.

CV22

15P

RV26
100(1/2W)

RV33

10K

DV21

1SS133

RV71

820

CV27

1000/6.3
RV63
120K

RV38
10K

RV14

56K

CV20
100/50

RV20
270

RV37

47K

QV16
KTC3199 GR

CV23
47/63

42.1V

42V

0V

0.67V

0V

42.1V

0V

0V

0V

41.1V

RV23

1K

CV21

15P

41.4V

QV13
KTC3200 GR

DV13
1SS133

RV27

10K

CV25

0.022

0V

0V

3.9V

3.9V

0V

0V

0

0V

3.9V

0V

0V

0V

0V

0.2V

0V

–42V

–40.6V

–39.5V

0V

0V

3.9V

2 3 4

5

6

7

1

CNPV12

(1/4W)

Q908

KTC3199 GR

Q909

2SD2012

F999
T500mA L 250V

C919

4700/25

Q905

KTC3199 GR

C908

47/25

R909

1K

R908

33K

Q906

2SD2012

C910
47/25

R911

560(1/6)

D901

1SS133

Q904

KRA107 M

C907

220/25

ZD903

MTZJ130C

R907

560(1/4)

D904

1N4004S

Q902

2SD2012

Q901

KTC3199 GR

R902

1K

C903
47/25

C904
47/25

R906

100

Q903

2SD468 C

C905
47/25

ZD904

MTZJ8.2C

R903
47(1/6)

R910

150

R912

47

R917

4.7K

Q914
KRC107 M

C902

47/25

R901
68(3W)

R918
100

C920
47/25

Q913

2SB1375

ZD901
MTZJ130A

C901

0.022

C909

0.022

C906

0.022

D903

1N4004S

+12V(A)

+12V(M)

+4.6V(D)

GND(D)

GND

–41.4V–11.9V

–12.4V

–12.47V

–12.45V

1

2

13.2V

13.8V

13.2V

18.8V

4.8V

5.46V

12.5V

18.8V

13.1V

13.2V

18.8V

13.8V

1.35V

13.8V

13.8V

1

2

3

18.1V

8.4V

8V

8V

18.1V

7.8V

CD GND(D)

+7.3V(CD)

C911

0.022

D905

1SS133

1 2 3 4

5

6

7

2 3 4

5

6

7

1

BI903

2 3 4

5

6

7

8

9

10

11

2 3 4

5

6

7

8

9

10

11

1

BI901

1

CV11

2.2/50

CV13

2.2/50

CV16

470P

RV22

56K

RV24

1K

CV19

100/50

RV19

270

RV13

56K

CV15
470P

12.5V

18.8V

Q907
KRA102 M

–0.62V

0V

3

2

1

OUT1(L-CH)

OUT2(R-CH)

RELAY1

GND(A)

FAN CONT

SP LEVEL

GND(M)
H/P SW
+12V(M)

NC

FAN SW

POSISTOR

AMP

PROT

FWP01

CFWP01

CV24
47/63

Fusible

Fusible

TO MAIN PWB

P27 12-E

CNS903

POWER PWB-D

–B

+B

+B

+B

–12V(A)

GND(M)

+7.3V(CD)

GND(D)

+4.6V(D)

+12V(M)

+12V(A)

GND(A)

POWER

CD GND(D1)

GND(D3)

CNS901

TO MAIN PWB

P27 12-F

CNPP01

–VCC

–VCC

–VCC

–VCC

+VCC

+VCC

GND

GND

ZD902

MTZJ5.6A

R904

1.5K

11.8V

R905

22

GND(M)

+B

+B

+B

+B

–B

+VCC

+VCC

GND

GND

GND

GND

1.35V

3

FM SIGNAL

Fusible

– 35 –

CD-C449W/K449W

7

8 9 10 11 12

Figure 35 SCHEMATIC DIAGRAM (14/15)

CV32

0.1(ML)

CV28
47/50

RV40
56K

QV19
KTC3199 GR

DV15

1SS133

QV18

KTC3199 GR

RV55

47

QV21
KTC3199 GR

CV30

3300/63

CV29
3300/63

4

133

33

3.9V

0V

0V

0V

0V

3.9V

RV41

56K

RV42

56K

RV44

4.7(1/2W)

CV31

0.1(ML)

RLYV11

DV17

1SS133

DV23

1SS133

RV54

22K

H/P SW

FAN SW

SP LEVEL

FAN CONT

RV60

27K

RV53

22K

DV24

1SS133

DV19

1SS133

ZDV11

MTZJ5.1B

RV59

100K

CV48

10/50

DV22

1SS133

RV58

10K

CV49

100/50

DV25

1SS133

DV20

1SS133

RV57

4.7K

RV72

22K

+

+

GND(A)

H/P SW

GND(M)

CV47
47/25

QV20
KTA1270

ZDV12

MTZJ6.2B

RV56

3.9K

7.2V

8V

0V

8V

0V

0V

2 3 4

5

6

7

1

PV12

C919
00/25

ZD903

MTZJ130C

R907
60(1/4)

4

.

7K

914

RC107 M

SW991

VOLTAGE

SELECT

F990

T3.15A L 250V

F991

T1.6A L 250V

F992

T1.6A L 250V

F997

T2A L 250V

D993

D995

D994

D992

ZD951

MTZJ330C

C963

47/50

C964
47/50

ZD952

MTZJ6.8C

Q951

KTA1266

D954

1N4004S

R956

100

C965
100/35

R955

12K

D953

1N4004S

C962

47/63

R957

2.2K

D951

1N4004S

C961

220/50

D952

1N4004S

R954

220

(1/4)

R953
220
(1/4)

C960

220/50

C959

220/50

C957

0.047
(ML)

C958

0.047
(ML)

D991

KBU1003

220V
127V

230-240V

T.F.

-38V

D992-D995
2A02

–31.4

–32.1V

1 2 3 4

5

6

7

2 3 4

5

6

7

1

BI903

2

3

4

5

1

WTV11

RV52

330

RV51

330

1

CNPV11

2

M

1

CNSV11

2

1

FW901

2 3

T991

POWER TRANSFORMER

RV43

4.7(1/2W)

CV33

0.1(ML)

CV34

0.1(ML)

RV62

3.3K

RV61

47K

QV22
KTC3199 GR

RELAY1

0.13V

0.8V

C954

0.047(ML)
C956

0.047(ML)

TMV01

FAN MOTOR

M901

HP-L-CH

HP-R-CH

FROM

HEADPHONES PWB

P30 1-B

FW901

SPEAKER
L-CH

SPEAKER
R-CH

8OHMS

S903

–VCC

–VCC

–VCC

–VCC

+VCC

+VCC

GND

GND

–VP

VF1

VF2

WTP02

TO MAIN PWB

P26 1-E

(285)

(285)

AC110/127/220

/230-240V

50/60Hz

(242)

AC POWER

SUPPLY CORD

SPEAKER AMP.PWB-F

0V

–

–

+VCC

+VCC

GND

GND

GND

GND

–36.1V

110V

CD-C449W/K449W

– 36 –

Figure 36 SCHEMATIC DIAGRAM (15/15)

• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.

A

B

C

D

E

F

G

H

1

23456

J602

MIC2

BI601

CNSU02

C622

2.2/50

C623

2.2/50

C620

2.2/50

C621

2.2/50

D601

1SS133

C601

0.47/50

R669
220

R670
220

C677
47/25

R668

1.2K

ZD631
MTZJ5.6B

R667
100

C674
47/25

Q631

KTC3203 Y

C673

0.022
C672

47/25

C617

0.15/50

C616

0.15/50

C626

0.1/50

C624

0.1/50

C610

2.2/50

C611

0.1/50

C606

0.1/50

C633

2.2/50

C618

0.01(ML)

C631

0.022

C632
100/10

R612

56K

R614

30K

C619

100P

R611

1K

R610

1K

C630

0.22(ML)

C628

0.082(ML)

C627

0.022(ML)

VR603
20K(B)

C629

0.068

(ML)

C625

0.0082

R618

15K

R617

10K

15K

R616

R615

3.3K

R608 15K

R607 10K

R606 15K

C634

0.082

(ML)

R636

1K

VR601

20K(B)

C608

2.2/50

VR602

20K(B)

C604

2.2/50

R603

1K

R605

150K

R604

150K

R619

22K

C615

220/10

C614

0.22

(ML)

R609 33

C613 0.068(ML)

C612

0.0082

C609

270P

C605

270P

MIC AMP.

IC601

M65845FP

R602

5.6K

C602

0.47/50

5.6K

R601

J601

MIC1

24

18

17

16

15

14

13

12

11

10

19

20

21

22

23

25

26

27

28

29

30

31

32

33

34

35

36

123

456

7

8

9

+B

VOLTAGE
REGULATOR

+B

+B

+B

4.7V

6.4V

5.4V

2.3V

4.7V

0V

0V

0V

0V

0V

1.6V

0.5V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

2.3V

0.6V

0.6V

4.7V

DA INT IN

KARAOKE PWB-L CD-K449W ONLY

DIGITL
ECHO

MIC

GND(A)

GND(D)

+12V(A)

OUT(R)

IN(R)

IN(L)

OUT(L)

V.CAN

948

567

3

2

1

948

567

3

2

1

MIC2 VOLUME

MIC1

VOLUME

V.CAN

R-in

L-in

R-out

L-out

MIC1 VOL IN

VCFIL

VALC

AUD SW2

AUD SW1

CLOCK

MIC IN

ALC1

MIC1 NF IN

MIC1 OUT

MIC SW

MIC ECHO OUT

L LINE OUT

R LINE OUT

L LINE IN

R LINE IN

ECHO VOL IN

MIC2 IN

ALC2

MIC2 NF IN

MIC OUT

MIC2 VOL IN

MIC OUT

LPF1 IN

LPF1 OUT

AD INT IN

AD INT OUT

AD CONT

REF

GND

LPF2 OUT

LPF2 IN

DA INT OUT

VCC

DA CONT

TO MAIN PWB

CNPU02

P25 12 - E

+B

FM SIGNAL

– 37 –

CD-C449W/K449W

7

8 9 10 11 12

Figure 37 WIRING SIDE OF P.W.BOARD (1/9)

1

2

3

+

-

+

-

PICK UP IN

SLED MOTOR

SPINDLE MOTOR

M2

CNP3A

SW4

M1

+

-

1
2
3
4
5
6

BI99

CNS5

21

21

CNS10

WH

RD

GY

WHBRWH

GY

OR

WH

GY

10

1

BIM5

6

987654321

SW2

MECHA UP

SW1

OPEN/CLOSE

M3

T/T UP/

DOWN LOADING

SW3

DISC NUMBER

CNS1B

CNS1A

CNS2BCNS2A

CNS3BCNS3A

BL

YL

PK

WH

BK

GY

RD

WH

GY

WH

GY
WH
GY

WH

RD
WH
GY
WH
GY
WH

BL
PK

WH

YL
BK

1
2
3
4
5
6
7
8

1
2
3
4
5
6
7
8

1
2
3
4
5
6

1
2
3
4
5
6

1
2
3
4
5

1
2
3
4
5

PICKUP UNIT(306)

CD MOTOR PWB-K

SENSOR PWB-J

SOLM2

SOLENOID

CNPV11

TO SPEAKER

AMP.2 PWB

P44 2-A

CD SERVO PWB-B

RD

CNSV11

BR

2
1

M901

FAN MOTOR

CNP3

R37

CNP2

C35

R13

C7

R12

C8

R11

C6

R14

R15

C9

R10

C5

R9

R8

C4

C54

CNP1

1

5

10

15

20

25

30

35

40

45

50

55

60

5

10

15

20

25

30

35

40

45

50

55

60

64

C15

R2

C1

C3

Q1

R1
C2

C33

R46

C31

C34

C32

R43

R40

R38

C30

R42

R39

C23

R52

R53

C48

C47

C38

C27

R41

C26

C40

R51

C39

D1

C28

C25

C57

C46

R47

R60

C37

XL1

IC2

C45

C42

C49

C44

R57

R58

R62

R59

R61

R63

R50

C22

R45

C29

C24

C41

C56

R44

IC1

17

1

2

3

4

5

6

7

8

1
2
3
4
5
6

1
2
3
4
5

16

49
48

33

32

1

64

17

16

49
48

33

32

R35

R36

C21

C20

R32

R88
R89

C19

36

1

5

10

15

1819

20

25

30

35

C36

R82

R16

R48

R19

R20

R21

C10

R17

R18

C11

R23

R24

C13
R26

R29

R33

R81

C18

C17

C12

C14

R25

R22

IC3

R27

C16

R28

C81

D91

R83

C82

IC81

CNP10

CNP11

65

4

321

1

2

3

4

5

6

7

8

9

1
2
3
4
5
6
7
8
9

10

R86

R80

Q93

Q91

R87

D3

D2

D4

ZD61

C51

C52

R34

R66

R64

Q52

Q51

R90

L61

CNP12

CNSF12

TO MAIN PWB

P39 9-H

CNSF11

TO MAIN PWB

P38 5-H

CNPR11

TO MAIN PWB

P38 2-H

14 13 12 11 10 9 8

7654321

R93

C43

R54

R55

C83

C53

D81

D82

R31

R30

1

2

3

BCE

B

C

E

BCE

11

5398

6421

10

12

7

1

3

1

RD

32

BK

RD

BK

WH

WH

CNS99

C50

C74

C71

R74

R72

C72

C73

R73

C85

BR

COLOR TABLE

RD(R)

OR

YL

GR

BL
VL

GY

WH(W)

BK
PK

BROWN

RED

ORANGE

YELLOW

GREEN

BLUE

VIOLET

GRAY
WHITE
BLACK

PINK

• The numbers 1 to 12 are waveform numbers shown in page 18.

CD-C449W/K449W

– 38 –

A

B

C

D

E

F

G

H

1

23456

CR03

CU63

CU09

CU07

CU16

CU34

17

32

33

48

49

50

55

60

64

1

5

10

15

16

30

35

40

45

25

20

CU32

CU30

CU29

CU58

CU57

CU31

CU56

CU41

CU62

CU52

CU43

QU02

QU01

CS16

QS11

CS11

CS12

CS13

CS15

CS19

QS16

CS18

CS17

CS21

CS22

CU51

QG04

C

CR02

QP12

QP11

CP20

CP16

CP19

CP15

CP23

CP24

CP10

CP09

CU35

CU15

CU45

LR01

DR11

DR12

ZDR01

RR01

RU10

RU11

RU09

RU96

RU21

RP09

RP10

RU26

RU25

RU22

RS29

RS11

RS18

DS03

RS33

RS15

RS14

RS13

RS34

RS16

RS12

RS30

RS31

RS32

RS27

RS25

RS28

RS26

RS24

RS36

RU23

RU24

CR01

RG01

RP29

RP30

CP26

RP27

CP25

RP21

RP22

RP18

RP28

RP32

RP31

RP20

ICS01

SWF02

JR11

ICR11

CNPR11

ICU01

CNPP01

BIF11

CNPU02

ICP11

RU05

CU05

CU01

CU03

DU01

CU02

DU02

CU04

CU46

CU10

CU36

CU06

CU08

RU06

RR12

CU55 CU42

CU39

CU61

CU26

CU28

CU40

CR10

RU03

CU11

CU64

RU04

CU12

RR17

RR13

CR11

CR13

RU02

RU14

RR16 RR15

RR11

RR18

CR12

RR14

CR14

RU95

CP07

CP08

RP16

CP27

CP18

CP28

RP17

RP19

RP15

CP17

RP26

RP25

RP11

RP12

RU13

RU01

CU18

CU17

CU21

CU22

CU24

CU23

BIF13

RU93

RU94

WTP02

WTP01

1

2

3

CU27

CU25

CU33

SWF02

SPAN

SELECTOR

10/100

FM/MW

9/50

E
C
B

E
C
B

E
C
B

1
2
3
4
5
6
7
8
9

S
G
D

1

2

1 2 3

E

C

B C E

B C E

3

21

3

21

1

6

12

3

4

5

678

91011

14

58

1

11

1 2

3

5

10

20

25

1

14

15 28

CNSF11

CNS99

FROM CD

SERVO PWB

P37 10-H

FW901

CNP11

FWD02

FROM

POWER PWB

P54 7-E

TO CD SERVO PWB

P37 10-H

FROM

DISPLAY PWB

P40 1-F

CNS901

FROM POWER

PWB

P45 7-F

F

R

1 2 3 4 5 6 7 8 9 10 11

RD

BKBKBKBKBKBKBKBKBK

BK

TO TUNER PWB

P42 1-B

CNP303

FROM SPEA

K

AMP PW

B

P44 3-A

CNWV1

MAIN PWB-A

JR12

L-CH

R-CH

INPUT

VIDEO/AUX2

JR11

L-CH

R-CH

INPUT

VIDEO/AUX-1

DIGITAL

OUT PUT

1 2 3 4 5 6

RD

BKBKBKBKBK

CD-K449W
ONLY

1

Figure 38 WIRING SIDE OF P.W.BOARD (2/9)

– 39 –

CD-C449W/K449W

7

8 9 10 11 12

Figure 39 WIRING SIDE OF P.W.BOARD (3/9)

BR

COLOR TABLE

RD(R)

OR

YL

GR

BL
VL

GY

WH(W)

BK
PK

BROWN

RED
ORANGE
YELLOW

GREEN

BLUE

VIOLET

GRAY
WHITE
BLACK

PINK

QK18

QK07

QK11

QK08

CK34

CK10

CK25

CK23

QK25

CK26

CK46

CL13

CK33

CK41

CK28

CK21

CK16

CK15

CK17

CK52

QK28

CK50

QK09

CK09

CK60

QK24

CK24

CK18

QK05

QK03

QK04

QK06

QK27

QK26

CK36

CH24

CH22

CH27

QK10

CG57

QL19

QL16

QL17

QL13

QL18

CL12

QL14

QL15

LK02

LK01

QG03

CG07

CS16

CS12

CS13

CS15

QS17

CS19

QS16

CS18

CS17

CG01

QG01

QG02

CG03

QS14

QS18

QK21

QK17

CK37

QK40

CK35

QK15

CP57

QG04

QS15

CS14

QP17

CH30

CH23

RK58

RK19

RK09

RK01

RK17

RF46

RF65

RF64

RF36

RF39

RF50

RF40

RK33

RG17

RG21

DL12

RF23

RF21

RF19

RK02

RK20

DH16

DH18

DH17

RF47

RK89

RK13

RK69

RK62

RK38

RK64

CH13

RG38

DH14

DH19

DH20

RG56

RF14

RF12

RF92

RF91

LG01

RF81

RG23

RF10

RF08

RF06

RF22

RF20

RF07

RF09

DL11

RL16

RL19

RL17

RL15

RG19

RG16

RG15

RF11

RF13

RF98

RF61

CG61

RF31

RF30

RF32

51

80

70

65

60

55

75

85

90

95

81

100

1

5

10

15

20

25

30

31

35

40

45

50

ZDF01

DG03

RG57

RG58
RG59

DG02

DG05

DG06

RS29

RS11

RS15

RS14

RS13

RS12

RS30

RS31

RS32

RS27

RS25

RS28

RS26

RS24

RS36

RG34

RG36

DG04

DS01

RS22

RS20

DS02

RK55

RK81

JP57

RK54

RK74

RF82

RF78

RF70

RK56

RF53

RF95

CG08

RS23

RG01

RG08

RG11

RH31

ICS01

ICF01

WTL11

XF01

CFWP01

CNPK01

BIF12

ICK01

ICH11

CNPP01

CFWP02

RF33

RG20

RF34

RK65

RK60

RK61

RK63

QK14

RK28

RF29

CK40

CK11

CK44

RK07

RK08

CK01

RK10

RK40

RK48

RK50

CK02

CK31

RK52

RF24

RF25

RF26

RF27

RF28

RF35

RF38

RF41

RF42

RF44

RG55

RF49

RF52

RF37

RL14

RF97

RH30

CK08

CK39

CK27

RK23

RK25

CK32

RK30

CK12

CK14

RK35

CK29

CK13

RK21

CK19

RL20

RL24

RK45

RK29

RK46

RK32

RK57

RK49

RH20

RH29

RH27

RH15

RH17

RK90

CK06

RK42

RK36

RK26

RK24

CK20

RK22

RK03

RK05

CK30

RK31

RK34

RK47

CK43

CH29

RH35

RH13

RH34

RH37

RF05

RF03

RF04

RF02

RF01

CG56

RL12

RL13

RL18

RG04

RG22

RF62

RF63

CG05

RF17

CG06

RG33

RG30

RG10

CG04

RG32

RG29

RG37

RG39

RG35

RG31

CG02

RK53

RK39

RK43

CH28

RK41

RG24

RG05

RF80

RF79

RF77

RF76

RF73

RF71

RF69

RF68

RF67

RF72

CK55

RP73

RF94

RF96

CK07

RG26

RH25

RH39

RH32

CNPF01

BIF13

RU93

RU94

RG25

RF99

QG05

RS35

QS12

QS13

RL11

QL12

QL11

RK27

RK37

QK13

DH11

DH12

RH24

CH18

CH16

QK29

RK75

QK30

RH11

RH12

CH12

RK73

RK72

CH19

CH20

RH26

DH13

CH21

CH17

RH21

RH22

CH26

CH15

CH25

RH36

DH15

RH16

CH10

RH14

1

23456789

1011

24232221

201918

1716151413

12

1

23

1

765432

CK22

QK16

CK42

QK19

CK47

LK04

CK51

RK68

RK67

LK03

RK66

CK62

RK06

RK04

RK11

RK12

CK05

RK18

RK15

RK14

CNPK02

QK22

CK38

CK45

DL13

DL14

3
2
1

E
C
B

E
C
B

B
C
E

1
2
3

1
2
3

B
C
E

1
2
3

3
2
1

3
2
1

3
2
1

E
C
B

E
C
B

E
C
B

3
2
1

3
2
1

E C B

E
C
B

B C E

B
C
E

B
C
E

B
C
E

B
C

E
3 2 1
3 2 1

1 2 3

1 2 3

E
C
B

B
C
E

B
C
E

S
G
D

S
G
D

3
2
1

3
2
1

3
2
1

1 2 3

1 2 3

E C B

12

3

4

5

678

91011

1

14

B
C
E

B
C
E

3
2
1

B
C
E

B
C
E

3
2
1

3
2
1

3
2
1

3
2
1

3

3

4

5
7

6
8

9

10

2

1

11

1

35

7

9

11

10864

2

12

13

14

1

4

5

8

123456

7

89

1011

12

13

5

10

20

25

1

14

15 28

NSF11

CNS901

FROM POWER

PWB

P45 7-F

CNSU02

FROM KARAOKE PWB

P43 7-A

14 13 12 11 10 9 8 7 6 5 4 3 2 1

CNSF12

CNP12

FWM1

TO CD SERVO PWB

P37 11-H

FROM TAPE

MECHANISM PWB

P43 9-D

CNSD1

FROM DISPLAY PWB

P40 2-F

FROM TAPE
MECHANISM
TAPE2 HEAD

P43 11-H

FROM TAPE

MECHANISM

TAPE1 HEAD

P43 9-H

CNSK02

CNSK01

8 9 10 11

BKBKBK

BK

PWB

B

03

FROM SPEAKER

AMP PWB

P44 3-A

CNWV11

FWP01

BKBKBKBKBKBKBKBKBKBKBKBKBK

RD

W

1

14

CD-K449W ONLY

CD-C449W/K449W

– 40 –

A

B

C

D

E

F

G

H

1

23456

Figure 40 WIRING SIDE OF P.W.BOARD (4/9)

RE56

SWD53

SWD54

RE57

QD03

CD29

CD28

QD04

321

321
321

321

321

321

CD30

FWD02

CV92

RD61

RD60

RE21

RD13

CD21

RD53

DD01

RD33

RD32

RD58

LV91

RV91

RV92

SWD17
F-PLAY

RE17

RE12

LD01

RE07

CD20

CD19

RD59

CD18

RD48

RD15

RD16

RD17

RD19

RD31

RE14 RE13

RE15

RD01

RD02

RD10

RD09

RD08

RD07

RD06

RD05

RD04

RD03

CD06
CD05

CD10

RD50

RE16

CV91

FLHLD

RD11

FWV91

LEDD09

LEDD06

IC

D

RE22

RE02

RE04

RE22

DISC
SKIP

OPEN/
CLOSE

SWD12
TUNING
UP/CUE

SWD14
NORMAL
EDIT

SWD15
HIGH-EDIT

SWD21

BAL,RIGHT

QD01

QD02

SWD22

BAL,LEFT

RD49

LEDD03

FF

SWD13

STOP

REC/PAUSE

SWD16

SWD07
SOFT

RE06

LEDD01

F-PLAY

LEDD02

STOP

SWD0

9

HAVY

-

SWD08
VOCAL

SWD

0

JOG

LED

D

6

0

65

70

75

80

81

85

90

95

100

LEDD07

LEDD05

LEDD13

LEDD12

LEDD11

RD52

QD05

QD06

SWD18

SRS/DEMO

RD51

DD02

RD57

RD39

CD09

CD11

SWD03

X-BASS

1

5

1

3

FLD

0

12 3456789

1011 12 13 14 15 16 17 18 19 20 2122 23 2

4

CNSD01

RXD01
REMOTE
CONTROL

1

23456

789

10

SWD01

VOLUME JOG

CNPF01

FROM MAIN PWB

P39 12-G

WTP02

TO MAIN PWB

P38 5-H

1
3
2

JOG P

W

HEADPHONES

PWB-C3

WTV11

TO SPEAKER

AMP. PWB

P44 2-A

– 41 –

CD-C449W/K449W

7

8 9 10 11 12

Figure 41 WIRING SIDE OF P.W.BOARD (5/9)

SWD52
DISC3

SWD51
D1SC2

SWD50
DISC1

LEDD24

LEDD23

LEDD26

LEDD25

LEDD27

LEDD28

RE55

RE54

FWD01

SWD34

SWD49

SWD40

RD34

CD07

CD08

RE37
RE36

RD13

RE09

RE44

RE45

RD40

RE41

RE31

RE49

RE48

RD65

RE01

RD41

RD38

RE43

SWD33
R-PLAY

RE32

RE34

RE33

RE39

RE08

RE35

RE38

RE52

RE53

RD21

RD22

RD26

RD27

RD66

1
2
3

1
2
3

1
2
3

RD67
RD62

QD10

RD70

RD28

QD07

RD54

QD08

RD12

QD11

CD02

LEDD08LEDD09 LEDD15

LEDD16

LEDD14 LEDD19 LEDD18

ICD01

RD36

RD30

CD-K449W ONLY

+ + +

CD-C449W

CD-K449W

C449

K449

KARAOKE

CLOCK

SWD35
MEMORY

SWD38

CLEAR

SWD30

TUNING

DOWN/RERWIND

SWD09
HAVY-2

SWD02

JOG

SWD32

REVERSE

MODE

SWD31

CD

PAUSE

RD55

LEDD04

PAUSE

LEDD20

R-PLAY

REW

LEDD21

SWD37

SLEEP

SWD36
TIMER

RD45

RD35

SWD11

FLAT

QD12

RD71

RD72

SWD48
POWER

WHD01

RD37

VIDEO

AUX2

RE42

SWD39

VIDEO

AUX1

RE11

LEDD17

SWD10
HAVY-1

LEDD10

RD14

CD01

XD01

1

5

10

15

20

25

30

3135

40

45

50

51

55

60

65

70

75

85

90

95

100

RD44

RD43

RD42

RE51

RD64

SWD43

CD

SWD41

TAPE1/2

SWD42

TUNER

1

6

FLD01

19 20 21 22 23 2425 26 27 28 29 30 31 32 33 34 3536 37 38 39 40 41 42 43 44 45

46 47

3
2
1

3
2
1

DISPLAY PWB-C1

OG PWB-C4

SWITCH PWB-C2

1

6

CD-C449W/K449W

– 42 –

Figure 42 WIRING SIDE OF P.W.BOARD (6/9)

A

B

C

D

E

F

G

H

1

23456

1 2 3

3 2 1

E C B

321
321
321

321

ECB

ECB

ECB

ECB

ECB

BCE

B C E

1 2 3

123

R321

R302

2345 1

789 6

12

12

131415

11

171819

10

2 3 4 51

7 8 96

2 3 4 51

7 8 9
6

1110

16

222324 21 20

13 14 15 17

18 19
16

222120

1 2 3 4 5 6 7 8 9 10 11

FM MUTE

LEVEL

TUNER PWB-E

P38 5-A

CNP303

C383

FROM MAIN PWB

C382

C387

C380

R376

R360

R397

R398

RT09

QT01

CT16

CT15

CT11

CT02

CT01

BFT01

CT08

RT02

R310

D305

D301

D309

D311

D303

D307

C331

R319

D312

T306

C334

C335

TC304

TC305

T307

R325

L353

C349

T308

Q307

Q308

T302

D308

R320

R318

L311

D304

D302

D306

CT09

CT03

CT05

CT10

CT06

C304

C305

C330

C338

C306

C309

C314

R317

R314

R313

C307

C313

C321

C320

R342

R326

R330

R329

VR351

R343

R315

R322

R328

C316

C318

Q306

R327

D313

D317

D315

D314

D310

C319

C336

R323

R324

C315

D316

C310

C311

C303

CT04

RT01

RT08

RT04

RT10

VDT01

VDT02

CT07

LT02

LT01

CT14

CT12

C301

RT05

RT07

RT03

TT01

Q309

R312

R316

T304

T303

TC302

TC303

C308

C312

R311

CT13

DT01

RT06

ICT01

Q362

Q363

Q364

IC302

C391

Q361

R390

R377

R367

R361

R365

R366

R362

R350

R356

R351 R352

C342

R357

C374
C372

C371

C373

C368

C353

C354

C356

C355

R395

C381

C392

C393

C390

C385

C386

C394

C397

C367

C363

C365

C361

C350

C360

R341

C362

C343

R358

C364

Q353

Q354

L352

R374

R385
R384

R371

R381

R380

R379

R396

R338

R339

R340

L351

R387

R382

ZD352

ZD351

D351

D352

R373

R372

R392

R359

R354

C396

C375

C395

C370

C358

D353

R368

R355

C357

C366

R353

L358

L356

CF302

CF351

C352

C351

C399

Q360

C398

CF352

X352

T351

L357

Q365

X351

IC303

R363

R364

R393

R383

R391

VD301-1

VD302-B

VD302-A

VD301-2

CNSF13

FM

75Ohms

GND

SW1

SW2

MW

SO301

ANTENNA

TERMINAL

– 43 –

CD-C449W/K449W

Figure 43 WIRING SIDE OF P.W.BOARD (7/9)

7

8 9 10 11 12

IC601

VR603
DIGITAL
ECHO

VR602
MIC2
VOLUME

VR601
MIC1
VOLUME

J602
MIC2

J601
MIC1

MIC LEVEL

MIC

C605

C633

C673

C629

C630

C628

C624

C625

C631

C601

C602

C632

C627

C621

C620

1

51015

18

19

20253035

36

C623

C622

C674

C672

B

C

E

C604

C619

C618

C612

C609

C608

C613

C634

C615

C614

C606

C616

C611

C610

C617

C626

C677

Q631

R619

R618

R615

R616

R617

R611

R610

R603

R614

R612

R670

R608

R609

R602

R601

R607

R606

R605

R636

R604

R669

R668

R667

ZD631

9

1

9
8
7
6
5
4
3
2
1

D601

KARAOKE PWB-L
CD-K449W ONLY

GY
WH
GY
WH
GY
WH
GY
WH
RD

CNSU02

TO MAIN PWB

CNPU02

P39 8-H

BI601

CNPM2

SWM5
F. A. S

SWM4
REC RVS

SWM3
REC FWD

VRM1

TAPE

SPEED

1

FWM2

4

3

4

2

1

PHM1

SWM6

CAM

TAPE MECHANISM PWB-H

TAPE MECHANISM ASSEMBLY

HEAD PWB-G

WH

PK

BK

TAPE 1

PLAYBACK HEAD

TAPE 2

RECORD/PLAYBACK/ERASE HEAD

GY

GY

GY

WH

CNSK02

CNSK01

YL

BK

BL

PK

WH
BK

7

6

5

4

3

2

1

213

6

BI 102

1

WH

BK

PK

CNPK02

TO MAIN PWB

P39 12-B

TO MAIN PWB

P39 12-C

CNPK01

TAPE MOTOR

MM1

WTL11

FWM1

FWM1

TO MAIN PWB

P39 10-H

H

L

SOLENOID

SOLM1

WH

YL

BL

PKWHBK

FLEXIBLE PWB

131312 11 10

987654321

1

RM1

BR

COLOR TABLE

RD(R)

OR
YL
GR
BL
VL
GY

WH(W)

BK
PK

BROWN

RED
ORANGE
YELLOW

GREEN

BLUE

VIOLET

GRAY
WHITE
BLACK

PINK

CD-C449W/K449W

– 44 –

Figure 44 WIRING SIDE OF P.W.BOARD (8/9)

A

B

C

D

E

F

G

H

1

23456

CV22

CV18

CV16

CV21

CV20

CV27

CV49

RV18

RV22

RV24RV14

RV20

RV19

RV33

RV71

DV21

RV63

RV25

RV26

RV21

RV29
RV69

RV17

DV22

CNPV11

CV15

CV19

RV13

RV23

CV14

CV26

RV28

RV31

CV25

RV27

DV14

DV13

QV17

RV35

ECB

ECB

ECB

RV36

B C E

RV37

QV16

RV43

CV33

DV17

RV44

CV17

RV41

RV52

RV42

RV51

CV11

CV12

DV20

RV58

RV59

ZDV11

WTV11

RV40

RV38

QV22

RV61

CV48

CV13

RV56

CV47

QV20

QV19

QV18

DV19

CNPV12

RV60

DV15

CV28

RV62

CFWV11

RY21

RY22

12345678

9101112131415

RV57

RV72

QV21

ZDV12

RV55

CV29

CV30

DV25

RV54

DV24

DV23

RV30

RV32

RV70

RV53

RLYV11

CV24

CV23

CV31

CV32CV32

CV34

QV13

QV14

12345

1

2

345

6

7

135791113

1412108642

ICV01

BCE

E C B

B C E

E C B

E C B

FWV91 CNSV11

FROM

HEADPHONES PWB

P40 2-F

TO MAIN PWB

P39 7-A

FROM FAN MOTOR

P37 8-G

CFWP01

FWP01

1 2

1

14

SPEAKER AMP. PWB-F

SPEAKER

L-CH

SPEAKER

R-CH

TMV01

SPEAKER TERMINAL

FROM POWER PWB

P45 12-G

CNS903

– 45 –

CD-C449W/K449W

C961

C960

C919

BI901

D992

C906

ZD952

R955

C965

D994

C905

BCE

ECB

ECB

ECB

ECB

Q951

D953

D952

D954

D951

C964

Q903

D993

C962

Q907

R953

ECB

R954

Q908

D905

R912

C910

C911

R902

R907

R917

R918

C901

C902

Q913

Q901

ZD903

Q905

D901

C920

ZD901

C908

R908

R911

R910

Q914

~ ~

–+

D991

R901

F992

T1.6A L 250V

SW991

VOLTAGE SELECT

110V 230–240V

127V 220V

F997

T2A L 250V

C956

C954

C957

R909

Q904

321

321

321

C904

C903

R903

Q906

C909

C907

ZD904

Q909

D904

D903

F999

T500mA L 250V

C963

ZD951

R956

R957

C959

C958

D995

F991

T1.6A L 250V

F990

T3.15A L 250V

ZD902

R905

R904

R906

1

7

BI903

1

1 1

Q902

POWER PWB-D

T.F.

(285)

(285)

1 2 3

FW901

E
C
B

E C BE C B

1
2
3
4
5
6
7

RD
WH
WH
WH
WH
WH
WH

CNS903

WTP02

TO MAIN PWB

CNPP01

TO MAIN PWB

11
10

9
8
7
6
5
4
3
2
1

WH
WH
WH
WH
WH
WH
WH
WH
WH
WH

RD

T991

POWER TRANSFORMER

AC POWER

SUPPLY

AC 110/127/220/230-240V

50/60Hz

(242)

Figure 45 WIRING SIDE OF P.W.BOARD (9/9)

7

8 9 10 11 12

BR

COLOR TABLE

RD(R)

OR
YL
GR
BL
VL
GY

WH(W)

BK
PK

BROWN

RED
ORANGE
YELLOW

GREEN

BLUE

VIOLET

GRAY
WHITE
BLACK

PINK

CD-C449W/K449W

– 46 –

TROUBLESHOOTING

When the CD does not function

When the CD section does not operate When the objective lens of the optical pickup is dirty,this section may not operate.Clean
the objective lens,and check the playback operation.When this section does not operate even after the above step is taken,check
the following items.
Remove the cabinet and follow the troubleshooting instructions.
"Track skipping and/or no TOC(Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup lens.
Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."

Turn the power off.
Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.
Do not touch the lens with the bare hand.

• When the turntable fails to stop.

Is from 5 V till 2.5V down pulse (approx. 300 ms)

Check the SW3 and the wiring from the ICF01 pin 91 to the
SW3.

No

No

input into the ICF01 pin 91 when the turntable is rotating?

5V

2.5V
0V

Yes

Check IC2 pin26 Q91 and Q93 and the periphery.

Check the MECHA UP SW and the wiring from the ICF01 pin
91 to the MECHA UP SW.

No

Yes

Is there following voltage input on the ICF01 pin 91 in the
specific state?
When the CD mechanism is moved up: 0V

In other states: 4.3V

Yes

Is there following voltage input on the ICF01 pin 91 in the
specific state?

In other states: 4.3V

When the CD mechanism is moved up: 0V

• When turntable fails to move.

Check the MECHA UP SW and the wiring from the ICF01 pin
91 to the MECHA UP SW.

Is 4V output from the Q91 emitter during operation stated
above?

Yes

Yes

Check the wiring of IC2 pin 26 and Q93 pin 2.

OK

No

No

Is L output from the IC2 pin 26 during SEC when the disc skip
switch is pressed?

Yes

Check turntable motor and turntable mechanism.

Check Q91, Q93 and the periphery.

ICF01 defective.

IC2 defective.

– 47 –

CD-C449W/K449W

• When the CD tray fails to open or close.

Is there following voltage input in specific state of ICF01 pin 93?
Open state: 0V
Close state: 0V
Intermediate state between open state and close state: 4.3V

Is H output to IC2 pin 24 or 25 for 7 seconds when the OPEN/
CLOSE key is pressed?IC81 is defective. Replace it.

Is 4V output between IC81 pins 3 and 7 during operation
stated above?

Check the loading motor (M1) and the loading mechanism.

Yes

Yes

Yes

No

No

IC2 defective.

No

Check the periphery of IC81.

IC81 defective.

OK

OK

Check the OPEN CLOSE SW and the wiring from the ICF01
pin 93 to the OPEN CLOSE SW.

Check the wiring of the IC2 pins 24 and 25, IC81 pins 1 and 3.

• The CD function will not work.

The CD operating keys don't work.

Check the CD, DSP, power supply, and 16.93 MHz clock, and
reset terminal.

Check the waveform of SCK, SO (DATA) and SI (COMM).

Yes

Yes

See if the pick-up is the in PICKUP IN SW position.

If the items mentioned above are OK, check the main
microcomputer ICF01.

Yes

Yes

No

Yes

No

• The CD operating keys work.

Check the Focus - HF system.

Playback can be performed without a disc.

Focus search OK

Does the pick-up move up and down twice?

Does the output waveform of IC1(16)(FD) match that shown in
Fig. 47?

Check the IC1(50)(CLK) line, 4MHz.
Check the microcomputer data on pins (51)(CL), (52)(DAT)
and (53)CE.

Check the area around IC3-CNP2.

Yes

Yes

Figure 47

Focus search is
performed two
times when play
operation is done
without disc.

0.5s

0.50 V
IC1 16 FD

2

1

0.5s

0.50 V
IC1 7 TE

CD-C449W/K449W

– 48 –

• Playback can only be performed when a disc is
loaded.

Is HF waveform normal (see the Fig.48-1, 2)?

Check the tracking system.

Is the Focus servo active? (Can you hear it working?)

Check the laser diode driver.
Check the area around IC1(16) - (21) (focus servo circuit).

No

Yes

Yes

Yes

Does the DRF signal change from "L" to "H"?

No

Yes

If the disc is not turning, the DRF
should not change to "H".

Level is abnormal.

No

Yes

Waveform is unstable.

Check the spin system.

Yes

Check the periphery of
IC1 pins 41 and 42.

Check the spin system.

Figure 48-2

Figure 48-1

Waveform in case of
normal play-back

HF

1.0V/DIV

0.5µsec/DIV(DC)
(When playing
back the disc)

3

2

1

4

0.5s

1.00 V
IC1 16 FD

0.5s

10.0 V
IC2 13 CLV+

0.5s

10.0 V
IC1 54 DRF

0.5s

2.00 V
IC1 7 TE

• Check the tracking system.

Check waveform of IC1 pin 7 (TE).

Play is possible in
TEST mode.

Although IL is possible,
play is impossible.

Check the periphery
of IC 1 pin 14.

Normal jump is impeded,
and the program top
cannot be reached.

Check the periphery of IC 1
pin 8 to pin 15, and IC 3 to
CNP2.

The waveform shown in
Fig.48-3 appears, and no­disc state appears soon.

Tracking servo is
inoperative.

Yes

Yes

Yes

Yes

Yes

Data cannot be read.

Check the VCO-PLL system.

Yes

3

4

5ms

1.00 V
IC1 7 TE

5 ms

5.0 V
IC1 54 DRF

Figure 48-3

– 49 –

CD-C449W/K449W

• Checking the spin system.

Yes

No

Play operation is performed without disc.

The turntable rotates a little.

The turntable fails to rotate or rotates at high speed.

Yes

The spin driver circuit is normal.

Check the periphery of IC1 pins 23 to 27, pin 39, and pin 40, IC2
pin 12 and pin 13, IC5 to CNP3.

Yes

• Checking the VCO-PLL system

Figure 49

Play operation is performed when disc exits.

Yes

Although HF waveform is normal, TOC data cannot be read.

Yes

Check PDO waveform (Fig. 49).

Abnormal

Check the IC1 pins 43 and 44, IC2 pins 3, 5, 7, 10, and 11.

Stop --> Play

As VCO freque­ncy is locked at

4.32 M Hz, voltage
of PDO rises and
stabilizes.

2

3

0.5s

1.00 V
IC2 3 PDO

0.5s

1.00 V
IC2 16 FD

• Although HF waveform is normal and the time
indication is normal, no sound is emitted.

Check IC 2 pin 48 (EFLG).

Check IC2 pins 37, 40.

Check IC 401 and POWER AMP ICV01 and ICX01.

Abnomal

Yes

Usually, the number of pulses of flawless disc is 100 pulses/sec
or less.

No

CD-C449W/K449W

– 50 –

1 DEFI Input Input terminal of defect detection signal (DEF). (Connected to OV when not used.)
2 TAI Input For PLL Input terminal for test. Pull-down resistor is integrated. Surely connected to 0V.
3 PDO Output Output terminal of phase comparison for external VCO control.
4 VVSS — Ground terminal for integrated VCO. Surely connected to 0V.
5 ISET Input Resistance connection terminal for current adjustment of PDO output.
6 VVDD — Power terminal for integrated VCO.
7 FR Input VCO frequency range adjustment.
8 VSS — Ground terminal of digital system. Surely connected to 0V.
9 EFMO Output For slice level control EFM signal output terminal.
10 EFMIN Input EFM signal input terminal.
11 TEST2 Input Input terminal for test. Pull-down resistor is integrated. Surely connected to 0V.
12 CLV+ Outout Output for disk motor control. 3 values can be output with the commands.
13 CLV- Output Output for disk motor control. 3 values can be output with the commands.
14 V/P Output Monitor output terminal for automatic switch of rough servo/phase control.

"H" for rough servo, and "L" for phase servo.
15 HLF Intput Input terminal of track detection signal. Schmit input.
16 TES Input Input terminal of tracking error signal. Schmit input.
17 TOFF Output Tracking OFF output terminal.
18 TGL Output Output terminal for switch of tracking gain "L" increases the gain.
19 JP+ Output Output for track jump control. 3 values can be output with the commands.
20 JP- Output Output for track jump control. 3 values can be output with the commands.
21* PCK Output Clock monitor terminal for EFM data replay. 4,3218MHz as the phase clock.
22* FSEQ Output Output terminal synchronous signal detection. "H" is output when synchronous signal detected

by EFM signal matches synchronous signal internally generated.
23 VDD — Power terminal of digital system.
24 CONT1 Input/Output General purpose input/output terminal 1
25 CONT2 Input/Output General purpose input/output terminal 2
26 CONT3 Input/Output General purpose input/output terminal 3
27 CONT4 Input/Output General purpose input/output terminal 4
28* CONT5 Input/Output General purpose input/output terminal 5
29* EMPH Output Difference monitor terminal At "H", deemphasis disk is being replayed.
30* C2F Output C2 flag output terminal.
31 DOUT Output Output terminal of digital OUTPUT. (EIAJ format)
32* TEST3 Input Input terminal for test. Pull-down resistor is integrated. Surely connected to 0V.
33 TEST4 Input Input terminal for test. Pull-down resistor is integrated. Surely connected to 0V.
34 N.C. — Terminal not used. Open during operation.
35* MUTEL Output L channel 1 bit DAC Mute output terminal for L channel.
36 LVDD — Power terminal for L channel.
37 LCHO Output L channel output terminal.
38 LVSS — Ground terminal for L channel Surely connected to 0V.
39 RVSS — R channel 1 bit DAC Ground terminal for R channel Surely connected to 0V.
40 RCH0 Output R channel output terminal.
41 RVDD — Power terminal for R channel.
42* MUTER Output Mute output terminal for R channel.
43 XVDD — Power terminal for quartz oscillation.
44 XOUT Output Ground terminal of 16.9344 MHz quartz oscillator.
45 XIN Input Ground terminal of 16.9344 MHz quartz oscillator.
46 XVSS — Ground terminal for quartz oscillation. Surely connected to 0V.
47* SBSY Output Output terminal of synchronous signal of subcode block.
48* EFLG Output Correction monitor terminal of C1, C2, single and double.

IC2 VHiLC78622K-1: Servo/Signal Control (LC78622K) (1/2)

FUNCTION TABLE OF IC

Pin No.

FunctionTerminal Name

Input/Output

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Controlled with serial data command
from micro computer.
When not used, set it as the input terminal and
open it by connecting to 0V, or set it as the output
terminal and open it.

– 51 –

CD-C449W/K449W

IC2 VHiLC78622K-1: Servo/Signal Control (LC78622K) (2/2)

FunctionTerminal Name

Input/Output

49* PW Output Output terminal of subcodes P, A, R, S, T, U and W.
50* SFSY Output Output terminal of synchronous signal of subcode frame. It drops when subcode stands by.
51 SBCK Input Clock input terminal to read subcode. Schmit input (Connected to 0V when not used.)
52* FSX Output Output terminal of synchronous signal of 7.35kHz divided from quartz oscillation.
53 WRQ Output Output terminal to stand by output of subcode Q.
54 RWC Input Input terminal of read/write. Schmit input.
55 SQOUT Output Output terminal of subcode Q.
56 COIN Input Command input terminal from microcomputer.
57 CQCK Input Clock input terminal to fetch command input, or pick up subcode from SQOUT. Schmit input
58 RES Input Reset input terminal of LC78622. When turning on power, set it at "L".
59* TEST11 Output Output terminal for test. Used in the open state ("L" output as ordinary).
60* 16M Output Output terminal of 16.9344Hz.
61 4.2M Output Output terminal of 4.2336MHz.
62 TEST5 Input Input terminal for test Pull-down resistor is integrated. Surely connected to 0V.
63 CS Input Chip selection input terminal. Pull-down resistor is integrated.

Connected to 0when not controlled.

64 TEST1 Input Input terminal for test Pull-down resistor is integrated. Surely connected to 0V.

Pin No.

Note: The same potential must be supplied to the power terminals (VDD, VVDD, LVDD, RVDD, XVDD).

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

DEFI

EFMIN

FSEQ

V/P
PW

SBCK

SBSY
SFSY

CS

WRQ

SQOUT

COIN

RWC

CQCK

HFL

TES

TOFF

JP-

JP+

RES

TGL

CONT1

CONT2

CONT3

CONT4

CONT5

EMPH

EFLG

16M

4.2M

XVss

FSX

XIN

XOUT

XV

DD

RVss

RV

DD

MUTER

RCHO

LCHO

MUTEL

LVss

LV

DD

(NC)

DOUT

C2F

EFMO

VVDDVVss

PDO

I SETFRPCK

TAI

TSTI1

TEST1

TEST2

TEST3

TEST4

TEST5

VDDVss

CLV+

CLV-

Slice level

control

VCO colck oscillation

clock control

2K x 8bit

RAM

RAM address

generator

Interpolation mute

Bilingual

Digital OUT

Digital

attenuator

X4 oversampling

digital filter

1bitDAC

L.P.F

XTAL system timing

generator

General-use port

Servo commander

µCOM

Interface

Subcode division

QCRC

CLV

Digital servo

Sync detection

EFM demodulation

Flag processing of C1/C2

error detection and correction

Figure 51 BLOCK DIAGRAM OF IC

CD-C449W/K449W

– 52 –

IC1 VHiLA9241M/-1: Servo Amp. (LA9241M) (1/2)

1 FIN2 Connection pin for photodiode of pickup.

RF signal is generated through addition with FIN pin, and FE signal is generated through subtraction.
2 FIN1 Connection pin for photodiode of pickup.
3 E Connection pin for photodiode of pickup. TE signal is generated through subtraction with F pin.
4 F Connection pin for photodiode of pickup.
5 TB Pin for input of DC component of TE signal.
6 TE- Pin to connect gain setting resistor of TE signal to TE signal.
7 TE TE signal output pin.
8 TESI TES (Track error sense) comparator input pin. TE signal is band-passed and input.
9 SCI Input pin for shock detection.
10 TH Pin to set time constant of tracking gain.
11* TA TA amplifier output pin.
12 TD- Pin to compose tracking phase compensation constant between TD and VR pins.
13 TD Pin to set tracking phase compensation.
14 JP Pin to set amplitude of tracking jump signal (kick pulse).
15 TO Tracking control signal output pin.
16 FD Focusing control signal output pin.
17 FD- Pin to compose focusing phase compensation constant between FD and FA pins.
18 FA Pin to compose focusing phase compensation constant between FD-/FA-pins.
19 FA- Pin to compose focusing phase compensation constant between FA and FE pins.
20 FE Output pin of FE signal.
21 FE- Pin to connect gain setting resistor of FE signal across TE pin.
22 AGND GND for analog signal.
23 NC No connect.
24 SPI Spindle amplifier input.
25 SPG Pin to connect gain setting resistor in the 12cm mode of spindle.
26 SP- Pin to connect spindle phase compensation constant together with SPD pin.
27 SPD Spindle control signal output pin.
28 SLEQ Pin to connect thread phase compensation constant.
29 SLD Thread control signal output pin.
30 SL- Input pin of thread feed signal from micro computer.
31 SL+ Input pin of thread feed signal from micro computer.
32 JP- Input pin of tracking jump signal from DSP.
33 JP+ Input pin of tracking jump signal from DSP.
34 TGL Input pin of tracking gain control signal from DSP. TGL = Gain low at "H"
35 TOFF Input pin of tracking off control signal from DSP. TOFF = Off at "H"
36 TES Output pin of TES signal to DSP.
37 HFL (HIGH FREQUENCY LEVEL) is used to judge whether main beam is positioned on the bit or on the mirror.
38 SLOF Thread servo off control input pin.
39 CV- Pin to input CLV error signal from DSP.
40 CV+ Pin to input CLV error signal from DSP.
41 RFSM RF output pin.
42 RFS- Pin to set gain of RF and set 3T compensation constant together with RFSM pin.
43 SLC (SLICE LEVEL CONTROL) is the output pin to control of the level of the data slice with RF waveform DSP.
44 SLI Input pin to control the level of data slice with DSP.
45 DGND GND pin in the digital system.
46 FSC Output pin for focus search smoothening capacitor.
47 TBC (Tracking Balance Control) Pin to set EF balance variable range.
48* NC No connect.
49 DEF Defect detection output pin of disk.
50 CLK Reference clock input pin. 4.23MHz of DSP is input.

Pin No.

Port Name

Function

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

– 53 –

CD-C449W/K449W

IC1 VHiLA9241M/-1: Servo Amp. (LA9241M) (2/2)

Pin No.

Port Name

Function

51 CL Micro computer command clock input pin.
52 DAT Micro computer command data input pin.
53 CE Micro computer command chip enable input pin.
54 DRF (DETECT RF) RF level detection output.
55 FSS (Focus Serch Select) Pin to switch focus search mode. (± search/+ search for reference voltage)
56 VCC2 VCC pin for servo system and digital system.
57 REFI Pin to connect pass control for reference voltage.
58 VR Reference voltage output pin.
59 LF2 Pin to set defect detection time constant of disk.
60 PH1 Pin to connect capacitor for peak hold of RF signal.
61 BH1 Pin to connect capacitor for bottom hold of RF signal.
62 LDD APC circuit output pin.
63 LDS APC circuit output pin.
64 VCC1 RF system VCC pin.

Figure 53 BLOCK DIAGRAM OF IC

1FIN2

FIN1

E

F

TB

TE-

TE

TESI

SCI

TH

TA

TD-

TD

JP

TO

FD

FD-

FA FA-

FE FE- AGND SP SPI SPG SP- SPD SLEQ SLD SL- SL+ JP-

JP+

TGL

TOFF

TES

HFL

SLOF

CV-

CV+

RFSM

RFS-

SLC

SLI

DGND

FSC

TBC

NC

DEFCLKCLDATCEDRFFSSVCC2REFIVRLP2PH1BH1LDDLDS

SLC

RF AMP

TE

F.SERVO & F.LOGIC SPINDLE SERVO SLED SERVO

VCC1

2

3

4

6
7

5

8

9

10

11

12

13

14

15

16

17 18 19 20 21 2322 25 26 27 28 29 30 31 32

33

34

35

36

37

38

39

40

41

42

43

44

46

47

48

495051525354555657585961 60626364

45

24

APC

RF DET

REF

VCA

VCA

INTER FACE

BAL

µ-COM

I/V

T.SERVO & T.LOGIC

NC

CD-C449W/K449W

– 54 –

ICF01 RH-iX0235AWZZ:System Microcomputer (IX0235AW)

1,2 P00-P01 Input/Output 8-Bit input/output port. Input/output can be specified in 4-bit units

HOLD release input. Port 0 interrupt input

3-10 P10-P17 Input/Output 8-Bit input/output port. Input/output can be specified in 1-bit units

Dual-purpose function
P10: SIO0 data output
P11: SIO0 data input input/bus input/output
P12: SIO0 clock input/output
P13: SIO1 data output
P14: SIO1 data input input/bus input/output
P15: SIO1 clock input/output
P16: BUZ output
P17: Timer 1 output (PWM output)

11 P70 Input/Output 6-Bit input port. Dual-purpose function

P70: INT0 input/HOLD release input/Nch-Tr. Output for watchdog timer
12 RES Input Reset terminal
13 XT1/P74 Input Input terminal for 32.768 KHz crystal oscillator

Connected to VDD when not used

Dual-purpose function

General-purpose input port P74
14 XT2/P75 Output Output terminal for 32.768 KHz crystal oscillator

Open when not use

Dual-purpose function

General-purpose input port P75
15 VSS1 — Negative power terninal
16 CF1 Input Intput terminal for ceramic oscillator
17 CF2 Output Output terminal for ceramic oscillator
18 VDD1 — Positive power terninal
19-26 P80-P87 Input 8-Bit input port. Dual-purpose function

AD input port (8 pcs.)
27-29 P71-73 Input 6-Bit input port. Dual-purpose function

P71: INT1 input/HOLD release input

P72: INT2 input/timer 0 event input

P73: INT3 input (input with noise filter)/ timer 0 event input
30-37 S0/PA0- Input/Output Segment output terminal for LCD display

S7/PA7 Usable as general-purpose input/output port (PA)

38-45 S8/PB0- Input/OUtput Segment output terminal for LCD display

S15PB7 Usable as general-purpose input/output port (PB)

46-53 S16/PC0- Input/Output Segment output terminal for LCD display
(48*,51*,53*)

S23/PC7 Usable as general-purpose input/output port (PC)

54,55 S24/PD0

-

Input/Output Segment output terminal for LCD display

(55*) S25/PD1 Usable as general-purpose input/output port (PD)
56 VDD2 — Positive power terninal
57 VSS2 — Negative power terninal
58-63 S26/PD2- Input/Output Segment output terminal for LCD display

(58*-60*) S31/PD7 Usable as general-purpose input/output port (PD)
64-71 S32/PE0- Input/Output Segment output terminal for LCD display

(66*) S39/PE7 Usable as general-purpose input/output port (PE)
72-79 S40/PF0- Input/Output Segment output terminal for LCD display

(74*,78*) S47/PF7 Usable as general-purpose input/output port (PF)
80-82 V1/PL4- Input Bias power terminal for LCD drive

V3/PL6 Usable as general-purpose input/output port (PL)

83-86 COM0/PL0- Input/Output Common output terminal for LCD display

COM3/PL3 Usable as general-purpose input/output port (PL)
87*,88* P30-P31 Input/Output 6-Bit input/output port. Input/output can be specified in 1-bit units
89 VSS3 — Negative power terninal
90 VDD3 — Positive power terninal
91-94 P32-P35 Input/Output 6-Bit input/output port. Input/output can be specified in 1-bit units

(94*)
95-100 P02-P07 Input/Output 8-Bit input/output port. Input/output can be specified in 4-bit units

(95*,96*,99*)

HOLD release input. Port 0 interrupt input

Port NamePin No.

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Input/Output

Function

– 55 –

CD-C449W/K449W

ICD01 RH-iX0234AWZZ:System Microcomputer (IX0234AW) (1/2)

1-2 P16-P17 Input/Output 8-Bit input/output port. Input/output can be specified in 1-bit units
(1*,2) Dual-purpose function

P16: BUZ output
P17: Timer 1 output (PWM output)

3-10 P30-37 Input/Output 8-Bit input/output port. Input/output can be specified in 1-bit units
(5*-7*) Dual-purpose function

Nchannel open output: 15V withstand rating

11 P70 Input/Output 4-Bit input/output port. Input/output can be specified in 1-bit units.

2-Bit input port. Dual-purpose functio

P70: INT0 input/HOLD release input/Nch-Tr. Output for watchdog timer
12 RES Input Reset terminal
13 XT1/P74 Input Input terminal for 32.768 KHz crystal oscillator

Connected to VDD when not used

Dual-purrpose function

General-purpose input port P74
14 XT2/P75 Output Output terminal for 32.768 KHz crystal oscillator

Dual-purrpose function

General-purpose input port P75

When not use. (Oscillatication specification) Open. (Port specification) Connect to VDD1.
15 VSS1 — Negative power terninal
16 CF1 Input Intput terminal for ceramic oscillator
17 CF2 Output Output terminal for ceramic oscillator
18 VDD1 — Positive power terninal
19-22 P80-P83 Input 4-Bit input/output port. Input/output can be specified in 1-bit units.

4-Bit input port. Dual-purrpose function

AD input port (8 pcs.)
23-27 P84-P87 Input 4-Bit input/output port. Input/output can be specified in 1-bit units.

4-Bit input port. Dual-purrpose function

AD input port (8 pcs.)
27-29 P71-73 Input 4-Bit input/output port. Input/output can be specified in 1-bit units.

4-Bit input port. Dual-purrpose function

P71: INT1 input/HOLD release input

P72: INT2 input/timer 0 event input

P73: INT3 input (input with noise filter)/ timer 0 event input
30-36 S0/T0- Output Fluorescent charcater display tube (VFD)display controller

(30*-32*) S6/T6 Segment/timing shared output
37-45 S7/T7- Input/OUtput Fluorescent charcater display tube (VFD)display controller

S15/T15 Segment/timing shared output

Pull-down resistance built-in output
46 VDD3 — Positive power terninal
47-50 S16-S20 Input/Output Fluorescent charcater display tube (VFD)display controller

Segment output

Dual-purrpose function

S16: High voltage withstand input port PC0

S17: High voltage withstand input port PC1

S18: High voltage withstand input port PC2

S19: High voltage withstand input port PC3

S20: High voltage withstand input port PC4
51 VP — Negative power terminal (Independent power supply only for fluorescent character display tube

drive output)

(Power supply for pull-dowen resistores)
52-63 S21-S31 Input/Output Fluorescent charcater display tube (VFD)display controller

Segment output

Dual-purrpose function

S21: High voltage withstand input port PC5

S22: High voltage withstand input port PC6

S23: High voltage withstand input port PC7

S24: High voltage withstand input port PD0

S25: High voltage withstand input port PD1

S26: High voltage withstand input port PD2

S27: High voltage withstand input port PD3

S28: High voltage withstand input port PD4

S29: High voltage withstand input port PD5

S30: High voltage withstand input port PD6

S31: High voltage withstand input port PD7

Port NamePin No.

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Input/Output

Function

CD-C449W/K449W

– 56 –

ICD01 RH-iX0234AWZZ:System Microcomputer (IX0234AW) (2/2)

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Port NamePin No.

Input/Output

Function

64-71 S32-S39 Input/Output Fluorescent charcater display tube (VFD)display controller

Segment output
Dual-purrpose function
S32: High voltage withstand input port PE0
S33: High voltage withstand input port PE1
S34: High voltage withstand input port PE2
S35: High voltage withstand input port PE3
S36: High voltage withstand input port PE4
S37: High voltage withstand input port PE5
S38: High voltage withstand input port PE6

S39: High voltage withstand input port PE7
72 VDD4 — Positive power terninal
73-80 S40-S47 Input/Output Fluorescent charcater display tube (VFD)display controller

(76*-78*) Segment output

Dual-purrpose function

S40: High voltage withstand input port PF0

S41: High voltage withstand input port PF1

S42: High voltage withstand input port PF2

S43: High voltage withstand input port PF3

S44: High voltage withstand input port PF4

S45: High voltage withstand input port PF5

S46: High voltage withstand input port PF6

S47: High voltage withstand input port PF7
81-84 S48-S51 Input/Output Fluorescent charcater display tube (VFD)display controller

Segment output

Dual-purrpose function

S48: High voltage withstand input port PG0

S49: High voltage withstand input port PG1

S50: High voltage withstand input port PG2

S51: High voltage withstand input port PG3
85-88 P00-P03 Input/Output 8-Bit input/output port. Input/output can be specified in 4-bit units.

HOLD release input. Port 0 interrupt input

N channel open output: 15V withstand rating
89 VSS2 — Negative power terninal
90 VDD2 — Positive power terninal
91-94 P04-P07 Input/Output 8-Bit input/output port. Input/output can be specified in 4-bit units.

HOLD release input. Port 0 interrupt input

N channel open output: 15V withstand rating
95-100 P10-P17 Input/Output 8-Bit input/output port. Input/output can be specified in 1-bit units

(98*-100*)

Dual-purpose function
P10: SIO0 data output
P11: SIO0 data input input/bus input/output
P12: SIO0 clock input/output
P13: SIO1 data output
P14: SIO1 data input input/bus input/output
P15: SIO1 clock input/output
P16: BUZ output
P17: Timer 1 output (PWM output)

– 57 –

CD-C449W/K449W

FLD01 : VVKBJ614GK/-1 FL Display

Figure 57 FL DISPLAY

PIN No.

CONNECTION

123456789101112131415

8G9G10G11G12GNPNPF2F2

1617181920212223

242526272829

P26P271G2G3G4G5G6G7G

303132333435363738394041424344454647

NPNP F1F1P1P2P3P4P5P6P7P8P9P10P11P12P13P14P15P16P17P18P19

P20P21P22P23P24P25

PIN No.

CONNECTION

1G2G3G4G5G6G7G8G9G10G11G12G
P1
P2
P3
P4
P5
P6
P7
P8
P9

P10
P11
P12
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P24
P25
P26
P27

–
–
–
–
–
–

–
S6
S4
S5
S3

a

h

j
k
b

f
m
g
c
e

r
p
n
d

DP

–

–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–

–
–
–
–
–
–

–
S6
S4
S5
S3

a

h

j
k

b

f

m

g

c

e

r
p
n
d

DP

–

–
–
–
–
–
–

–
S6
S4
S5
S3

a

h

j
k
b

f

m

g
c
e

r
p
n
d

DP

–

–
–

S6
S4
S5
S3

a
h

j
k
b

f

m

g
c
e

r
p
n
d

DP

–

–
–
–

S6
S4
S5
S3

a
h

j
k
b

f

m

g
c
e
r
p
n
d

DP

–

–
–
–

S6
S4
S5
S3

a
h

j
k
b

f

m

g
c
e
r
p
n
d

DP

–

S6
S4
S5
S3

a
h

j
k
b
f

m

g
c
e
r
p
n
d

DP

–
–
–
–
–
–

S6
S4
S5
S3

a
h

j
k

b

f

m

g

c

e

r
p
n
d

DP

–

–
–

–
–
–
–
–
–
–
–
–
–
–
–

–

B7
B14
B21

B6
B13
B20

B5
B12
B19

B4
B11
B18

B3B

B10
B17

B2

B9
B16

B1

B8
B15

S2

–
–

B7

B14

–

B6

B13

–

B5

B12

–

B4

B11

–

B3

B10

–
B2
B9

–
B1
B8

–
S1

CO

11G 10G 9G 4G

12G 8G 7G 6G 5G 3G 2G 1G

CO

B7 B7

B14 B14

B21

B1

B1

B8

B8

B15

S2

S1

(2G) (1G)

S6

S4

S3

S5

DP

a

b

c

d

f

g

m

e

r

p

n

h

j

k