Sharp CDK-477-W Service manual

CD-K477W

SERVICE MANUAL

No.S8869CDK477W/

CD-K477W

CP-K477, CP-SW477, CENTER(GBOXS0015AWM2)
and Surround (GBOXS0016AWM2) speaker system
Constibute CD-K477W

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

Manufactured under license from Dolby Laboratories Licens­ing Corporation.
DOLBY, the double-D symbol and "PRO LOGIC" are
trademarks of Dolby Laboratories Licensing Corporation.

CONTENTS

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

VOLTAGE SELECTION......................................................................................................................................................2

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

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

OPERATION MANUAL ...................................................................................................................................................... 8

DISASSEMBLY................................................................................................................................................................ 10

REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 13

ADJUSTMENT ................................................................................................................................................................. 14

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 18

TYPES OF TRANSISTOR AND LED................................................................................................................................18

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

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

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 49

TROUBLESHOOTING ..................................................................................................................................................... 50

FUNCTION TABLE OF IC................................................................................................................................................ 54

FL DISPLAY..................................................................................................................................................................... 61

REPLACEMENT PARTS LIST/EXPLODED VIEW

Page

SHARP CORPORATION

– 1 –

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

CD-K477W

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

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

● 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.

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.

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.

QACCA0001AW00

QACCE0008AW00

Figure 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR

QACCJ0003AW00

QACCL0005AW00

– 2 –

CD-K477W

● General

CD-K477W

SPECIFICATIONS

● Compact disc player section

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

50/60 Hz

Power consumption: 190 W
Dimensions: Width; 270 mm (10-5/8")

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

Weight: 10.2 kg (22.5 lbs.)

● Amplifier section

Output power: PMPO; 1600 W

(Front)
MPO; 182 W (91 W + 91 W)
(10 % T.H.D)
RMS; 100 W (50 W + 50 W)
(10 % T.H.D)
(Centre)
MPO; 49 W (10 % T.H.D)
RMS; 25 W (10 % T.H.D)
(Surround)
MPO; 49 W (total) (10 % T.H.D)
RMS; 25 W (total) (10 % T.H.D)
(Sub woower)
MPO; 91 W (10 % T.H.D)
RMS; 50 W (10 % T.H.D)

Output terminals: Front speakers; 8 ohms

Centre speaker; 8 ohms
Surround speakers; 16 ohms
Sub woofer; 8 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
CD digital output (optical)

Input terminals: Video/Auxiliary (audio signal) ×

2; 500 mV/47 kohms
Microphone 1/2; 1 mV/4.7 kohms

● 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)

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)

● Front speaker section

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

Maximum input
power: 100 W
Impedance: 8 ohms
Dimensions: Width; 190 mm (7-1/2")

Weight: 3.0 kg (6.6 lbs.)/each

● Centre speaker section

Type: 100 mm (4") woofer
Maximum input
power: 50 W
Impedance: 8 ohms
Dimensions: Width; 262 mm (10-5/16")

Weight: 1.4 kg (3.1 lbs.)

● Surround speaker section

Type: 100 mm (4") woofer
Maximum input
power: 25 W
Impedance: 16 ohms
Dimensions: Width; 170 mm (6-3/4")

Weight: 0.7 kg (1.5 lbs.)/each

● Sub woofer section

Type: 160 mm (6-1/2") woofer
Maximum input
power: 100 W
Impedance: 8 ohms
Dimensions: Width; 220 mm (8-11/16")

Weight: 3.8 kg (8.4 lbs.)

CP-K477

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

Height; 316 mm (12-1/2")
Depth; 264 mm (10-7/16")

GBOXS0015AWM2

Height; 145 mm (5-3/4")
Depth; 201 mm (7-15/16")

GBOXS00016AWM2

Height; 123 mm (4-7/8")
Depth; 176 mm (6-15/16")

CP-SW477

Height; 316 mm (12-1/2")
Depth; 294 mm (11-5/8")

– 3 –

CD-K477W

CD-K477W

■ Front panel

11.

(CD) Disc Tray

12.

(CD) Disc Number Select Buttons

13.

(CD) Disc Skip Button

14.

(CD) Open/Close Button

15.

Dolby Pro Logic Indicator

16.

(CD) Disc Number Indicators

17.

(TAPE 2) Direction Indicators

18.

(TAPE 2) Reverse Mode Indicator

19.

(CD) Play Indicator

10.

(CD) Repeat Indicator

11.

(CD) Pause Indicator

12.

(TAPE 2) Record Indicator

13.

Timer Record Indicator

14.

Timer Play Indicator

15.

4-Speaker Indicator

16.

Sleep Indicator

17.

Extra Bass Indicator

18.

Random Play Indicator

19.

(CD/TUNER) Memory Indicator

20.

(TUNER) FM Stereo Indicator

21.

(TUNER) FM Stereo Mode Indicator

22.

Spectrum Analyzer

23.

Function Selector Buttons

24.

Surround Mode Selector Buttons

25.

Extra Bass Button

26.

Volume Control

27.

On/Stand-by Button

28.

Headphone Socket

29.

Karaoke Maker Switch

30.

Microphone Sockets

31.

Microphone Level Controls

32.

Digital Echo Control

33.

Equalizer Selector/Demo Mode Button

NAMES OF PARTS

1

23

2

5

6 7 8

9 10 11 12

13 14 15 16 17

20 21 22

24

3 4

18
19

25 26

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.

Sub Woofer Level 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

27 28 29

30 31 32

34 35 36 37 38 39 40 41

42 43 44 45 46 47 48 49

– 4 –

33

CD-K477W

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.

Front Speaker Terminals

10.

Sub Woofer Terminals

11.

Surround Speaker Terminals

12.

Centre Speaker Terminals

7

1

1 2 3

2

4
5
6

8

SPEAKERS

RATED SPEAKER IMPEDANCE:

FRONT

RIGHT LEFT

8 OHMS MIN.

SUB

WOOFER

SURROUND
SPEAKERS

LEFT

RIGHT

RATED SPEAKER

IMPEDANCE:

16 OHMS MIN.

CENTER

SPEAKER

RATED SPEAKER

IMPEDANCE:
8 OHMS MIN.

9 10 11 12

– 5 –

CD-K477W

CP-K477

■ Front speaker

11. Super Tweeter

12. Tweeter

13. Woofer

14. Bass Reflex Ducts

15. Speaker Terminals

CP-SW477

■ Sub woofer

11. Woofer

12. Bass Reflex Ducts

13. Speaker Terminals

1
2

5

3
4

1

3

2

GBOXS0015AWM2

■ Centre speaker

11. Woofer

12. Speaker Wire

GBOXS0016AWM2

■ Surround speaker

11. Woofer

12. Speaker Wire

1

2

1

2

– 6 –

CD-K477W

■ Remote control

11.

Remote Control Transmitter LED

12.

Surround Mode Selector Buttons

13.

Test Tone Button

14.

Sub Woofer Level Control Buttons

15.

Centre Level Buttons

16.

Surround Level Buttons

● Tuner control section

17.

Preset Up/Down Buttons

● CD control section

18.

Track Up/Cue Button

19.

Track Down/Review Button

10.

Memory Button

11.

Disc Skip Button

12.

Stop Button

13.

Play/Repeat Button

14.

Pause Button

15.

Clear Button

16.

Random Button

● Tape control section

2
3
4

8
9

10

22
23

1

5 6

15 16

17 18 19 20

7

11
12
13
14

21

17.

(TAPE 2) Record Pause Button

18.

(TAPE 2) Reverse Play Button

19.

(TAPE 1/2) Stop Button

20.

(TAPE 1) Play Button

3

(TAPE 2) Forward Play Button

21.

(TAPE 2) Fast Wind Button

● Common section

22.

Extra Bass Button

23.

Equalizer Mode Button

24.

Function Selector Buttons

25.

Balance Control Buttons

26.

On/Stand-by Button

27.

Volume Up/Down Buttons

28.

Dimmer Button

24
25

27

26

28

– 7 –

CD-K477W

SETTING THE CLOCK

OPERATION MANUAL

1

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

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

Jog dial

CLOCK

ON/STAND-BY

MEMORY

TUNING
( )

2

3

4

0:00 AM 12:00 AM 0:00

5

6

7

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 display will appear.
(0:00 - 23:59)
"AM 12:00" → The 12-hou r display will a ppear.
(AM or PM 12:00 - 11:59)
"AM 0 :00" → The 12-hour d isplay will ap pear.
(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 34).

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.

8

9

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 34.

②

Perform steps 1 - 9 above.

– 8 –

CD-K477W

(Continued)

■

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 EQUALIZER/DEMO 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

(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

damage 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')

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 EQUALIZER/DEMO 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

EQUALIZER

/DEMO

– 9 –

CD-K477W

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.

CD-K477W

STEP REMOVAL

1 Top Cabinet 1. Screw ..................... (A1) x4 10-1

2 Side Panel 1. Screw ..................... (B1) x8 10-1

(Left/right)

3 CD Player Unit/ 1. Turn on the power supply, 10-2

CD Tray Cover open the disc tray, take out

4 Rear Panel 2. Screw ..................... (D1) x14 10-2

5 Tuner PWB 1. Socket .................... (E1) x1 11-1

6 Main PWB 1. Flat cable ............... (F1) x2 11-1

7

Karaoke PWB

8 Front Panel 1. Flat wire ................. (H1) x1 11-2

9

Speaker Amp. PWB

10

Power Supply PWB

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

12 CD Switch PWB 1. Screw ..................... (M1) x3 11-4

13

Headphones PWB

14 Tape Mechanism 1. Screw ..................... (P1) x6 11-4

15 Turntable 1. Screw ..................... (Q1) x1 11-5

16 Disc Tlay 1. Screw ..................... (R1) x2 11-5

17 CD Servo PWB 1. Screw ..................... (S1) x1 11-6

(Note 2) 2. Socket .................... (S2) x4

18 CD Changer 1. Screw ..................... (T1) x4 12-1

Mechanism

19 CD Mechanism 1. Screw ..................... (U1) x1 12-1

the CD cover, and close.
(Note 1)

2. Hook....................... (C1) x3

3. Hook....................... (C2) x2

4. Screw ..................... (C3) x1

5. Socket .................... (C4) x3

2. Screw ..................... (E2) x2

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

3. Socket...................... (F3) x4

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

1. Screw ..................... (G1) x3 11-2

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

1. Socket .................... (J1) x3 11-2

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

1. Screw ..................... (K1) x6 11-3

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

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

1. Screw ..................... (N1) x1 11-4

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

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

PROCEDURE

FIGURE

(F2) x3

CD-K477W

( A1 ) x2
ø3 x12mm

( B1 ) x2
ø3 x8mm

Side Panel
(Right)

( B1 ) x4
ø3 x8mm

(D1) x1
ø3 x10mm

CD Player
Unit

( C4 ) x1

(D1) x1
ø3x10mm

Rear Panel

( C4 ) x2

( D1 ) x10
ø3 x8mm

LOCK
LEVER

Figure 10-1

(C2) x1

Pull

Rear Panel

Figure 10-2

Top Cabinet

CD ServoPWB

CD Tray Cover

1

( C3 ) x1
ø3 x8mm

( A1 ) x2
ø3 x12mm

Side Panel
(Left)

( B1 ) x2
ø3 x8mm

Hook
( C1) x3

1
2

( C2 ) x1

Front Panel

Main PWB

Tuner PWB

(D2) x2
ø3 x10mm

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.

Note 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.

Figure 10-3

– 10 –

CD-K477W

( R1 ) x1
ø3 x10mm

( R1 ) x1
ø3 x10mm

( Q1 ) x1
ø3 x10mm

Turntable

Disc Tray

( Q2 ) x1

( R2 ) x1

( R2 ) x1

CD Player Unit

(F3) x2

(F2) x2

(G1)x2
ø3x10mm

(F2) x1

(E1) x1

Tuner PWB

Karaoke
PWB

(F1) x2

SPEAKER
AMP. PWB

Figure 11-1

(F4) x2
ø3x10mm

Front Panel

(E2) x2
ø3 x10mm

Front Panel

(F3) x2

(F4) x1
ø3x10mm

Main PWB

CD Switch PWB

Front Panel

(M1)x3
ø3x10mm

(L3)x12
ø3x10mm

Tape Mechanism

(P1)x6
ø3x10mm

(L1)x2

Washer

(L2)x1

Display
PWB

Headphones
PWB

Open

(N1)x1

ø3x10mm
Cassette
Holder (Left/Right)

Figure 11-4

(G1)x1
ø3x10mm

(J2)x5
ø3x10mm

Power Supply PWB

( J1 ) x1

Figure 11-2

(K1)x4
ø4x8mm

( J1 ) x2

( J2 ) x1
ø3x10mm

Speaker Amp. PWB

(K1)x1
ø3x10mm

( H1 ) x1

( H2 ) x2
ø3x10mm

Figure 11-5

( S1 ) x1
ø3 x10mm

CD Servo PWB

( S2 ) x2

(K1)x1
ø3x8mm

Figure 11-3

( S2 ) x2

CD Player Unit

Figure 11-6

– 11 –

CD-K477W

Woofer

Tweeter

Super

Tweeter

(A5)x2

ø3x10mm

(A3)x2

ø3x10mm

(A4)x4

ø4x12mm

( T1 ) x4

ø3 x12mm
( U1 ) x1
ø2.6 x10mm

Shift Lever

CD Changer
Mechanism

CD Player Base

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 12-1

CP-K477

STEP REMOVAL

1 Front Speaker 1. Net.......................... (A1) x1 12-2

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

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

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

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

CD Mechanism

PROCEDURE

FIGURE

CP-K477

Tweeter

Front Panel

(A2)x1

Net

(A1)x1

Woofer

Screw driver

CP-SW477

STEP REMOVAL PROCEDURE FIGURE

1 Sub woofer 1. Net.......................... (A1) x1 12-3

2. Duct Panel ............. (A2) x1

3. Screw ..................... (A3) x4

Note:

The center and rear speakers can be easily disassembled.
Therefore the disassembling method is not discribed.
For details refer to the disassembling drawing in the Parts
Guide.

– 12 –

CP-SW477

Net
( A1 ) x1

( A2 ) x1

Figure 12-2

( A3 ) x4
ø4 x16mm

Woofer

Screwdriver

Figure 12-3

REMOVING AND REINSTALLING THE MAIN PARTS

( 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

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. 13-1)

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

CD-K477W

Figure 13-1

How to remove the pickup (See Fig. 13-2)

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.

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.

Figure 13-2

– 13 –

CD-K477W

ADJUSTMENT

MECHANISM SECTION

• Driving Force Check

Torque Meter

Play: TW-2412 Tape 1: Over 80 g

• Torque Check

Torque Meter

Tape 1

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

• Tape Speed

Test Tape

Normal MTT-111 VRM01 3,000 ± Speaker
speed 30 Hz terminal

Adjusting

Point

Specified Value

Tape 2: Over 80 g

Specified Value

Specified

Value

Tape 2

Instrument

Connection

(Load
resistance:
8 ohms)

TUNER SECTION

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

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage

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

Frequency

Frequency

Display

Setting/

Adjusting

Parts

Instrument

Connection

TAPE MECHANISM PWB

VRM01

SWM1

TAPE

FAS
SW

Figure 14-1

SPEED

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

– 14 –

• FM RF

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

Test Stage

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

RF 98 MHz 98 MHz LT01 *2

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

Frequency

10 - 30 dB

Frequency

Display

Setting/

Adjusting

Parts

Instrument

Connection

• 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.

21 ~ 40

FM Preset

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

No.

MW

Preset

No.

SW1

Preset

No.

SW2

CD-K477W

• FM Detection

Signal generator: 10.7 MHz, FM sweep

Test Stage

IF 10.7 MHz 98 MHz TT01 *1

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

• FM Mute Level

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

Frequency Adjusting

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

*1. Adjust so that an output signal appears.

Frequency

Frequency

Display

Frequency

Display

Setting/

Adjusting

Parts

(Turn the
core of trans­former TT01
fully counter­clock wise)

Parts

Instrument

Connection

Instrument

Connection

Terminal

R357

TUNER PWB

T351

AM IF

IC303

TP302

VR351

FM Mute
Level

fL fH

SW2
Coverage

SW1 Band
Coverage

fL fH

T307 TC305

T308 TC304

FM Band
Coverage

LT02

T306

MW Band
Coverage

TT01

TP301

FM IF FM RF

LT01

SW2 Tracking

fH fL

T304TC302

T303TC303

T302

MW
Tracking

SO301
ANTENNA
TERMINAL

fH fL

SW1
Tracking

Figure 15 ADJUSTMENT POINTS

– 15 –

CD-K477W
TEST MODE

• 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. 16-1)
OPEN/CLOSE operation is manual operation.
The pickup can be moved by using the ( ) or ( ) key.

<MEMORY>
LASER ON

<MEMORY>
Tracking on the spot.
SERVO OFF PLAY

<MEMORY>
Tracking on the spot.
SERVO ON PLAY

IL is not performed.

<STOP>

STOP

<PLAY> key input

TOC. IL is performed, and the ordinary PLAY is performed.
If the following key is pressed during PLAY, it is possible
to specify directly any Track No.
<Disc Number 1> key: Track 4
<Disc Number 2> key: Track 9

Press <STOP> key.

Stop

<Disc Number 3> key: Track 15

Note:

Only in STOP state it is possible to slide the pickup with the ( ) or ( ) key.
VOL. --- Last memory

BAL. --- CENTER
R.GEQ. --- FLAT
X-BAS --- OFF

Canceling method - POWER OFF

Figure 16-1

CD SECTION

Since this CD system incorporates the following automatic adjustment function, when the pickup is replaced, it is not necessary
to readjust it.
Since this CD unit does not need adjustment, the combination of PWB and laser pickup unit is not restricted.

• Automatic adjustment item

1. Focus offset (Fig. 16-2)

2. Tracking offset (Fig. 16-3)

3. E/F balance (tracking error balance) (Fig. 16-4)

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.

0.1s

0.50 V
IC1 20 FE

0.1s

0.50 V
IC1 7 TE

FOCUS
OFF-SET
ADJUST

TRACKING
OFF-SET
ADJUST

1
2

10ms

0.50 V
IC1 20 FE

10ms

0.50 V
IC1 7 TE

Figure 16-2

200 ms
1V/diV
IC 1 15

200 ms
1V/diV
IC 1 7

TO

TE

TRACKING/
ERROR
BARANCE

1

ADJUST

2

Figure 16-4

– 16 –

Figure 16-3

Enlarged
View

TRACKING
OFF-SET
ADJUST

1
2

CD-K477W

EXPLANATION OF DOLBY SURROUND PRO LOGIC AND EVALUATION METHOD

Outline

• Namely, two speakers are connected in parallel to one

amplifier.

• In the Pro Logic BYPASS mode the amplifier for C-ch (center

channel) and the amplifier for S-ch (surround channel) are in
MUTE state. The SP output is cut.

• State of element output and terminal output in specific mode

State of set Dolby Pro Logic Dolby Pro Logic On mode
Output point Bypass mode Normal mode Phantom mode

ICC01 12 pin L-out Output enabled state Output enabled state Output enabled state

11 pin R-out Output enabled state Output enabled state Output enabled state
ICC01 9pin C-out No output Output enabled state No output
ICC01 10pin S-out No output Output enabled state Output enabled state
SP OUT L-ch Output enabled state Output enabled state Output enabled state
(TMV01) R-ch Output enabled state Output enabled state Output enabled state
SP OUT C-ch No output in MUTE (Q604) state Output enabled state No output in MUTE (Q604) state
(TMX11)
SP OUT S-ch No output in MUTE (Q603) state Output enabled state Output enabled state
(TMX11)

Test tone output

• Pro Logic ON Normal mode
Press the remote control TEST TONE button.
→Output of only L-ch →Output of only C-ch

↑ ↓

Output of only S-ch ← Output of only R-ch
The test tone (noise) is repeatedly output for output period
(2 sec).
In this case the following indication appears repeatedly.
→TEST →L-ch →C-ch

↑ ↓

S-ch ← R-ch

• Pro Logic ON Phantom mode
Press the remote control TEST TONE button.
→Output of only L-ch →Output of only R-ch

↑ ↓

← Output of only S-ch
The test tone (noise) is repeatedly output for output period
(2 sec).

In this case the following indication appears repeatedly.
→TEST → L-ch → R-ch
↑ ↓
← S-ch←

Relation between VIDEO IN input and output in Pro Logic
ON state

(1) L-ch/R-ch same phase input into VIDEO IN input jack in

VIDEO Function mode

Output point Normal mode

SP out L-ch Almost no output (only omitting component)
(TMV01) R-ch Almost no output (only omitting component)

(TMX11) SP out C-ch
(TMX11) SP out S-ch

Input signal is output.
Almost no output (only omitting component)

• In the normal mode of Pro Logic ON mode the amplifiers for
C-ch and S-ch are in operative state, so that the SP output
appears.

• In the Phantom mode of Pro Logic ON mode the amplifier for
C-ch is in MUTE state, so that the SP output is cut. The
amplifier for S-ch (surround) is in operative state, so that the
SP output appears

Output point Phantom mode

SP out L-ch Input signal is output.
(TMV01) R-ch Input signal is output.

(TMX11) SP out C-ch SP cut, no output
(TMX111) SP out S-ch

Almost no output (only omitting component)

(2) L-ch/R-ch reverse phase input into VIDEO IN input jack in

VIDEO Function mode

(Reverse phase: Phase difference between L and R is 180°)

Output point Normal mode

SP out L-ch
(TMV01) R-ch

(TMX11) SP out C-ch
(TMX11) SP out S-ch Input signal is output.

Output point Phantom mode

SP out L-ch
(TMV01) R-ch

(TMX11) SP out C-ch SP cut, no output
(TMX11) SP out S-ch Input signal is output.

Almost no output (only omitting component)
Almost no output (only omitting component)

Almost no output (only omitting component)

Almost no output (only omitting component)
Almost no output (only omitting component)

• Accordingly, if you want to output signal waveform to C-ch SP

out, give the same phase input into L-ch/R-ch INPUT in the
Pro Logic Normal mode.

If one of channels receives input, C-ch does not output. Only

L-ch or R-ch outputs.

• If you want to output signal waveform to S-ch SP out, you can

use either Normal mode or Phantom mode. However, 180°
reverse phase input must be given to L-ch/R-ch INPUT.

– 17 –

CD-K477W

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

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
SWD4 PRE EQ ON—OFF
SWD5 MENU 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
SWD19 SUB WOOFER VOLUME UP ON— OFF
SWD20 SUB WOOFER VOLUME DOWN ON—OFF
SWD24 4SP-1 ON—OFF
SWD25 4SP-2 ON—OFF
SWD27 PHANTOM ON—OFF
SWD28 NORMAL ON—OFF
SWD29 BYPASS ON—OFF
SWD30 TUNING DOWN/REWIND ON—OFF

FRONT

VIEW

FRONT

VIEW

• 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.

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 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

FRONT VIEW

KTA1266 GR
KTA1270Y
KTA1271 Y
KTC3199 GR
KTC3203 Y
KRA102 M

E C B

(S)(G)(D)

(1) (2) (3)

KRA109 M
KRC102 M
KRC104 M
KRC107 M
2SC535 C
2SD468 C
2SC2878 A

FRONT

VIEW

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

2SD2012
2SB1375

SLR325 MG
SLR325 VR
KL052 UL
SLR505 MC
LMKD515B

Figure 18 TYPES OF TRANSISTOR AND LED

– 18 –

KV1236Z23

TO MAIN SECTION

+B1

6

5

SW2

MECHA UP

SW3

9

8

GND (D)

MECHA UP

GND (D)

9

8

10 10

SW1

OPEN/CLOSE

DISC No.

7

5

6

DISK NO.

OPEN/CLOSE

GND (D)M–M+

7

5

6

M3

LOADING

M

3

4

3

4

SOLM1

2

1

GND (M)

2

1

CNS10

CNP10

TO MAIN

SECTION

CD-K477W

+5V

VOLATEG

REGULATOR

+5V

DRIVE

LASER

XL1

16.934Hz

+B1

Q1 Q52

IC81

8

Q91

LCHO

RCHO

40

37

31

XVDD
RVDD

LVDD

VDD

VVDD

DOUT

4144

6

27

CONT4

IC2

XOUT

XIN

64 45 3623 43

VCC1

LC78622K

CONTROL

SERVO/SIGNAL

EFMO

EFMIN

CLV+

JP–

~

9

101220

~

324043

JP–

CV+

SLC

44

SL1

IC1

LA9241M

62

LD0

SERVO AMP.

FIN2

FIN1EF

2

3

1

4

3

DRIVER

TA7291S

LORDING MOTOR

1

9

24

25

CONT2

CONT1

265853

~

RES. CQCK. COIN

SQOUT. RWC. WRQ

CE

5352515431302923271615

DAT
CL

DRF
SL+
SL–

SLD
NC
SPO
FD
TO

+12V(+B5)

Q93

Q91

CL, DAT, SELIAL CONTROL/CE

SL+. SL–. DRF

3222

5

6

+B1

20

7

34

272628

29

IC3

DRIVER

M56748FP

242530

13

12

PU-IN SW

35

36

10 11

98

31

7

Q81 +7.3V (+B9)

REGULATOR

+4.3V

PICKUP UNIT

FOCUS COIL

TRACKING COIL

Figure 19 BLOCK DIAGRAM (1/3)

– 19 –

M1

MOTOR

SPINDEL

M2

SLED

MOTOR

M

M

SW4

PICKUP IN

CD-K477W

C

O

O

C

4

3

R

U

3

O

U

E

4

R

SO301

ANTENNA

TERMINAL

FM
GND
SW1

SW2
MW

T302

MW ANT.

AUX-1/
VCR-1

L

FROM CD UNIT

TAPE MOTOR

SWM3
REC FWD

SWM6
CAM SW

SWM5
F.A.S.

SWM4
REC RVS

SOLM1
SOLENOID

TAPE 1

TAPE 2

JR11

MM1

M

PHM1

PB HEAD

L-CH
R-CH

REC/PB

HEAD

L-CH

R-CH

ERASE
HEAD

B.P.F

BFT01

MW OSC.

JR12
AUX-2/
VCR-2

LRR

TAPE SPEED

T306

+B6

QL14
QL18

VRM1

+B6

REC

P.B

AC BIAS

MOTOR
DRIVER

QL15
QL19

DRIVER

QK03 QK05
QK04 QK06
QK17,QK18

P.B

ICT01

TA7358AP

FM FRONT END

5

3

FM

RF

LT01

SW1/SW2
ANT.

Q308
Q309

CD MUTE

TAPE MOTOR

HI SPEED

QL13

SWITCHING

TA2F/R SPEED

QL17

SWITCHING

QL19

PLAYBACKuRECORD AMP

L(T1)
R(T1)
L(T2)
R(T2)

L NF
R NF

POP REDUCE

L REC

R REC

REF

+B7

HI SPEED

QK28
LK04

BIAS OSC.

QL12

QL11

REC/PB

QK09

QK10

1

T303
T304

QU01
QU02

DRIVER

DRIVER

QK07
QK08

QK11

8

LT02

SW1/SW2
OSC.

T307
T308

T2_RUN

T2_A_FP

CAM SW

T1/T2 CrO

T1/T2 PLAY

SOLENOID

ICK01

AN7345K

1

24

2

23

3
4

T1/T2

6

REC

9

16
14
13

NOR/
HIGH

12

15

QK19

SWITCHING

+B7

FM IF

FM IF

TT01

FM +B

L
R

L
R
L NF
R NF

Q362

QG05

QK13
QK14

P.B

OUT

REC-IN

REC

CF302

VR351

FM MUTE LEVEL

FMOSC

+B7

FM

Q360

+B7

Q363

QK27

QK25

SWITCHING

6

9

7

FM

OSC

AMP

QT01

Q306
Q307

MW +B

SW1 +B

SW2 +B

T2 CrO2

QK15
QK16

2

P.B.

4

21

5

20

H/N

7

18

8

17
10

T1/T2

11

19

T1/T2

FM IF IN

Q365

7

20

+B7

QK30

T2 CrO2

AM IF

OUT

OSC

AM

IN

AM IN

X352

4.5MHz

22

1

OSC

PLL CONTROLLER

9

+B7

Q364

PB-EQ

PB MUTE

QD01
QD02

MUTING

REC

QK21

MUTING

QK22

QK29
QK40

HI SPEED

BAIS

QK26QK24

SWITCHING

T351

22 23 24

AFC

151316

BAIS

REG IN

AM IN

LC72131

CF352

21

AM RF IN

FM IN

11 10 12 17

IC302

3

+B7

X351CF351

17 18 16

5 1 2 3

8 9

4

VCC

GND

IC303
LA1832 FM/AM IF+MPX

IF

OUT

13

7

STEREO

FM MONO/ST

4

5

DICLCE

MIC2

MIC1

MONO/ST

6

DO

VOLTAGE

REGURATER

IF IN

21

MIC

+B7

+5V

Q364

8

33

1

VCC

6

31

5

VR602

MIC2 VOL

L

VOICE CA

34

6

SD

15 14 12 10

R

CD

L
R
L

TAPE

R
L

TUNER

R
L

AUX2

R
L

AUX1

R

REGULATOR

IC601
M65845FP
MIC AMP.

10

VR601

MIC1 VOL

MUTING

Q353
Q354

+B7

QG04

56
54

52
58

53
57

50
60

51

59

LVref RVref

27 214962

VOLTAGE

Q631

19

GND

OUT

25

VR603
DIGITL
ECHO

ICH11(1/2)

BUFFER AMP.

NJM4558M

8
6

1

ICH11(/2)

OUT

L

R

+B7

18

L

26

IN

27

IN

R

OUT

L

29
28

R

7

4

2

SPE IN

14

Vref

22 26

+B7

IN

L

3
5

R

ICS03
NJM4565M
PRO LOGIC
AMP

–B6

TAPE SOLENOID

56

34

VDD

VOLUME

AUDIO PR

GRAPHIC EQUALIZE

45

10

42

Vss

7

39

4

36

1
R L

OUT

8

1
7

4

TUNER M

SPE1~5

T1_RUN
T2_RUN
T2_A-FP

T2_B-FP
T1_CrO2
T2_CrO2

CAM_SW

TAPE MOTOR

HIGH SPEED

TA_SPEED(M)

TA_BAIS

BEET CUT

TA R/P

TA_PB-EQ

REC_MUTE

TA_T1/T2

PB MUT

LC75

46

11 47

12

43

44

8

40

41

5

37

38

2
R L

OUT

IN
L

L

45
46

R

R

TUN

+B7

IC

9

48

6

6
3

L

R L

R

L

232

I

LV

D
PR
DE

33

Figure 20 BLOCK DIAGRAM (2/3)

– 20 –

CD-K477W

_

F1

1

VF2

F1

RXD01

TO CD UNIT

TUNER SD

TUNER MUTE

RWC

CD_OPEN/CLOSE

SLD–

SLD+

COIN

8788

73 70

9596 99

94

74

19

SPE1~5

~

23

T1_RUN

29

T2_RUN

30

T2_A-FP

31

T2_B-FP

32

T1_CrO2

33

T2_CrO2

34

CAM_SW

35

SOLENOID

36

E MOTOR

37

H SPEED

38

SPEED(M)

39

TA_BAIS

40

BEET CUT

41

TA R/P

42

TA_PB-EQ

43

EC_MUTE

44

TA_T1/T2

45

PB MUT

46

697172

C2B-DI

C2B-CL

C2B-CE

C2B-DO

CD2MUTE

+B7

DICLCE

24

IN

18

63 30

R

CENTER OUT

L

9

ICS01

DOLBY

423318

8

+B7

2523

OUT

20 28

OUT

SURROUND

SURROUND OUT

DATA

37

CLK

38
36

ENABLE

ICU01

LC75396N

IO PROCESSOR

EQUALIZER

47

12

44

9

48

41

6

38

3

L

R L

R

OUT

2324 22

IN

LV1035M

L

45
46

R

PRO LOGIC

DECORDER

SQOUT

4

12

3

SYSTEM CONTROL

MICROCOMPUTER

AMP

POWER

ENABLE

MIC DET

VOICE CAN

IN

OUT

L

31
17

R

R L

IN

OUT

CENTER

CENTER

IN

AMP

POWER

QP17
Q907

POWER
ON/STB
SWITCHING

CD_DISC No.SW

DRF

PUIN

CD_UP/DOWN

WRQ

CQCK

92 93

91

11 13 14

5

ICF01

IX0235AW

2447796781619768

SP PROT

SP LEVEL

POSISTOR

ICP11
NJM4565M

+B7

BUFFER AMP.

OUT

8

L
R

ICP71-1
NJM4565M
BUFFER AMP.

5

L

5

7

3

1

R

4

-B6

+B7

8

IN

7

4

–B6

+B7

8

OUT

5

7

CENTER
SURROUND

1

3

4

ICP12
NJM4565D
LOW BOOST

–B6

AMP.

1

+B9

CD_RESET

98

100

RELAY

FAN CONT

SUB WOOFER

FRONT RELAY

CLDICE

19

17 18

ICP70

LC7536

ELECTRIC

VOLUME

VDD VEE

13

10

–B6

+B7

–B6

SWITCHING

+B2

+12V(MOTOR)

+B6

+B7

+7.3V(CD)

TO CD UNIT

SN

SRS_A/NA

~

668384 548586 80

64

75525150492726

76

RELAY

REAR MUTE

CENTER/REAR

SYSTEM MUTE

ICR15
NJM4558M
BUFFER AMP.

(1/2)

6

OUT

8

6
5

VCC

21

VOLTAGE

REGURATER

QP13
QP16

–12V

Q914

+4.6V
UN-SWITCHED

VOLTAGE
REGULATOR
+12V(ANALOG)

4SP_A/NA

CENTER MUTE

L1dB

IN

L5dB
OUT

REGURATER

REGULATOR

SPAN SELECTOR.

SPAN

DOL_A/NA

S.W_A/NA

6
7
8
9

10
16

17
53

55
58
59
60

18
56

VDD

90
15

VSS

57
89

12

28

82

7877

MUTE

H/P SW

SUB WOOFER

SYSTEM

MUTE

(2/2)

2

7

2
3

ICP71-2
NJM4565M
BUFFER AMP.

QR11

CENTER
SURROUND

QR12

MUTE

CENTER

SURROUND

VOLTAGE

Q913

VOLTAGE

Q903

+B3

SWF02

COM
DAT
SCK
STB
DS RES

RESET IN

SYSTEM STOP

QP11
QP12

+B7

8

OUT
1

4

–B6

1

IN

14
10

QX17

AMP

QX18

REGULATOR

SWITCHING

REGULATOR

REMOTE
SENSOR

XF01

4.19MHz

+B3

+B4 (4V BACK UP)

+B4

RESET

QG01

P.FAIL DET

SUB
WOOFER
MUTE

QR13
QR21

IN

L

16
12

R

ICV01
STK407-270
POWER AMP.

18

IN

SUB

6

WOOFER

QV16

AMP +B

QV17

POSISTOR

5

ICX01
STK407-040
POWER AMP.

–B

2

+B

1

3

9

+B

VOLTAGE

Q901
Q902

Q905
Q906

Q904

VOLTAGE

Q908
Q909

T500mA L 250V

QG02
QG03

ZDF01

8

–B

F999

RES

+B

11

15

STB

1

DAT1

9

COM1

9

SCK

9

MEMORY
BACK UP

POSISTOR

7

3

5

7

6

D990

9 2

1
2

5
6
7

3

,

79

~
~

LEDD01~
LEDD21

+B3

–B

10

19

4

–B

CENTER
SURROUND

D992~D995

FLD01
FL DIPLAY

~

5

~

~

45

47

50 52

33

ICD01

IX0234AW

SYSTEM

MICROCOMPUTER

VSS VDD

188915

4

88
9491

+4.6V
UNSWITCH
+B2

OUT

D991

+B6

PROT

QV13
QV14
QY11

L

9
8

R

20

SUB
WOOFER
OUT

QX13
QX14

T3.15A L 250V

T3.15A L 250V

Q951

VP

VF1
(AC)

+B2

QV19

QV18

QX15

QX16

T6.3A L 250V

T6.3A L 250V

F993

F994

T2.5A L 250V

VOLTAGE
REGULATOR

VF2
(AC)

43

~~

71

73 75

VEE

–VP

PROT

@@@@

F995

F996

F997

4544

14
13
28
27

21

~

26

161751907246

XD01

4.19MHz

FAN SW

FAN CONT

H/P SW

FRONT
RELAY

QV22

RELAY
RLYV11

QV22
SUB
WOOFER
RELAY

RELAY
RLYY11

CENTER

SURROUND

(REAR)
RELAY

QX20

RELAY

RLYX11

T991

POWER

TRANSFORMER

T.F

KEY IN

2

F2

46

F2

47

SWD01

JOG SW

SWD02

JOG SW

KEY MATRIX
SWD03,SWD04
SWD12~SWD17
SWD19,SWD20
SWD24,SWD25
SWD27~SWD43
SWD48~SWD54

+B6

QV20
QV21

+
–
–
+
+
–

+
–
+
–
+
–

230-240V

F991

220V

T2.5A L 250V

F992

T2.5A L 250V

127V
110V

AC POWER SUPPLY CORD

(AC)
VF1

(AC)

M901

FAN

MOTOR

M

JV91
HEADPHONES

L-CH
GND

GND
R-CH

SUB
WOOFER

GND

TMV01

SPEAKER

TERMINAL

CENTER
GND
SURROUND

L-CH
GND

SURROUND
R-CH

GND

TMV11
SPEAKER
TERMINAL

SW991
VOLTAGE
SELECTOR

F990
T5A L250V

AC 110/127/220

/230-240V

50/60HZ

Figure 21 BLOCK DIAGRAM (3/3)

– 21 –

CD-K477W

4

R2
1K

LASER

C1

A

CNS1B

K
E
A

B

B
F

CNS1A

5
4

1

3

2

2

3

1

4
5

C

LD

MON

K
E
B

LD

GND

A
F

2200P

C

LT0H30M1

D

ACTUATOR

1M
2200P

1M

TR+
FO+

FO–
TR–

K

5

E

4
3

A

2

B

1

F

TR–

1

TR+

2

FO+

3

FO–

4

GND

5

PD

6

VR

7

LD

8

C15

0.01

CNP1

K

1

A

2

B

3
4

E

5

F

47/16

C2

0.01

C85

0.001

C4 0.1/50

TE

C54

0.001

R13 1K

R14 27K

R22
22K

C12

0.1

DRIVER

0V

R10

2.2K
R11

6.8K
R12

100

R9

0.047
R15

12K

C9

100K

0.033
C6

0.033

R16

3.3K

R21

5V

Q1
KTA1266

R8

15K

C5

C7

0.1/50

C8 0.068

C10

180P

1K

R20

22K

PICKUP UNIT

E

CNS2B

CNP2

CNS2A

TR–

1

TR–
TR+
FO+
FO–

GND

PD
VR
LD

F

SPINDEL

MOTOR

PICKUP IN

M1

M2

SLED

MOTOR

SW4

M

M

+

–

CNP3A
6

+

5

–

4
3
2
1

2
3
4
5
6
7
8

6
5
4
3
2
1

1
2
3

4

5
6
7

8

CNS3B

GND

TR+
FO+
FO–

PD
VR
LD

6
5
4
3
2
1

1
2
3
4
5
6
7
8

CNP3

CNS3A

6
5
4
3
2
1

SP+
SP–
SL+
SL–
PU-IN

R1
10

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

100/16

+B

C3
1/50

5V

64

FIN2

1
2

REF

FIN1

REF

E

3

4

F
TB

REF

5

TE–

6

TE

7

REF

8

TESI

9

REF

SCI

10

TH
TA

11
12

TD–
TD

13

+

–

REF

JP

14

+

–

TO

15

16

FD

R17 33K

C11

R18 15K

R19
1K

VREF

2.5V

1

2.5V

2

0V

3

2.5V

4

2.5V

5

2V

6

2V

7

0V

8

0V

9

0V

10

0V

11

2V

12

2V

13

2.5V

14

2.5V
15

0V

16

4.7V

17

0V

C36

/SPIN/SLIDE DRIVER

R46
560

4.2V

0V

2.2V

61 62 63

LDS

LDO

–

VCC1

+

–

RF

+

–

–

+

+

+
–

HIST.COMP

SHOCK;WCOMP

REF

GEN

REF

0.1

+
–

+
–

+

–

IC3 M56748FP

FOCUS/TRACKING

FE1
REF

–

VCR

+

–
+

R23
10K

–
+

VCR

BAL

+
–

REF

+
–

WCOMP

JP

+–

REF

FSC

TO

GEN

+

REF

–

+
–

GEN

REF

+
–

1CH

CH2

FD–

17

18 19

2.5V

2.5V

R24
47K

STAND

BY

TSD

+

–

FA–

FA

2.5V

R25

1.5K

C34 0.33/50

C33 0.47/50

1V

1V

59

60

BHI

PHI

VCR

+
–

VCR

IC1
LA9241M
SERVO AMP.

REF

TGL1

GL

THDL

THD

REF

REF

–

+

FOF

REF

SP

AGND

FE

FE–

23

22

20 21

2.5V
0V

2.5V

C13

330P

C16

R26
82K

R27 39K

C14

0.01

0V

36

0V

35

0V

34

2.5V

33

+

2.5V

-

32

1.8V

31

1.8V

30

0V

29

0V

28

0V

27

0V

26

2V

25

2V

CH3 CH4

24

2.5V

23

2.5V

–

22

2.5V

+

21

4.7V

20
19

0.7V

C32 0.01

LF2

REF

+

–
–

+

VCC

+

-

+

-

S.Q.R

+

–

24

0.0047

C31 220/6.3

2.5V

2.5V

58

57

VR

+
–

DEF

HFL

DRF

PSTR

+

–

SPOF

SPG

SPI

25 26

2.5V

2.5V

R28 10K

R31

1.2K

C18

0.47/50

R48
10K

C30 0.1/50

VCC

REFI

REF

JP

REF

SP–

2.5V

C17

0.001
R30

6.8K

R29 56K

5V

56

+

–

27

VCC2

+
–

0V

0V

54 55

FSS

DRF
FEBAL
FOSTA
TOSTA

2FREQ

LASER

FSTA

8/12CM

SLOF

JP–

JP+

CV–

CV+

REF

TO

SPO

2.5V

R32 10K

C19 1/50

52

53

CE

SLOF

OR

SLEO

28

2.5V

R33 1.2K

4V4V0V

CL

DAT

REF

SLOF

SLOF

+
–

REF

SLD

29

2.5V

C20

47/16

R34 22K

0V

2.4V
49 50 51

CLK

CLK
CE

CL

DAT

LATCH

P-ON RES

RF

+
–

30

C21

0.0033

R35 220K

DEF

+

–

SL–
31 32

2.5V

THLD

REF

SLC

SL+

2.5V

R36

DGND

RFS–

RFSM

SLOF

TES

TOFF

JP–

R37
82K

NC
TBC
FSC

SLI

+

CV+
CV–

HFL

TGL

JP+

0V

220K

R45

4.7K

0V

48
47
46

2.5V

0V

45

2.5V

44

C27

–

0.001

2.5V

43

2.5V

42

C24

2.2P

41

1.6V
0V

40

0V

39

5V

38

0V

37

0V

36

5V

35

5V

34

0V

33

GND

C35
1/50

D2

RL104AD3RL104A

C29

4.7/50

5.6K

R40

R43
56K

HF

D1

1SS133

C26

0.033
R41

47K

C25
27P

R38
470

C28

0.1

R44

33K

R42
47K

R39

1K
C23

0.0027

C22
220P

RL10

D4

CD MOTOR PWB-K

G

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

23456

Figure 22 SCHEMATIC DIAGRAM (1/18)

– 22 –

CD-K477W

2

C41
12P

C42
15P

R93@220

D82

1SS133

C83

0.022

C72

10/50

C43
330/6.3

C71

10/50

VOLTAGE
REGULATOR

L61

0.82µH

C51

100/16

CD SIGNAL

XL1

16.934MHz

D81
1SS133

R72

R74

C74

2.7K

560

0.001

R73

C73

R71

560

0.001

2.7K

Q52

KTC3203 Y

R66

R64

330

22

C52 100/16

ZD61

+B

+B

+B

+B

MTZJ4.7B

CNP11

1

CD R-CH
GND(AU)

2

CD L-CH

3

GND(CD)

4

+7.3V

5

+B

12V(M)

6

BI99
1

1

2

2

3

3

CNSF11

FROM MAIN PWB

P24 1-B

CNP99

DOUT
+4.3V

TO MAIN PWB

GND

CNPR11

P27 12-A

+B

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

C39

0.047

C56

R50
680

R51 3.3M

C40

0.047
R52

27K

R53

1.2K

0.022

2.5V

2.5V

R63 1K

0.01

TEST1

0V

DEFI

1
2

TA1

0V

3

PDO

0V

4

VVSS

0V

5

ISET

2.2V

5V

VVDD

6
7

1V

FR

0V

VSS

8

EFMO

9

EFMIN

10

0V

11

TEST2

CLV+

0V

12

CLV–

0V

13

5V

14

V/P

15

HFL

16

TES

C38

63 64

60 61 62
4M

/CS

TEST5

IC2
LC78622K
SERVO/SIGNAL
CONTROL

VCO CLOCK

OSC CONTROL

SLICE LEVEL

CONTROL

CLV

DIGITAL SERVO

SERVO

COMMAND

TOFF

JP+

TGL

JP–

19

17 18

20

58 59

16M

/RES

TST11

µ-COM

INTERFACE

2K x8BIT

RAM

ERROR CORRECT

FLAG CONTROL

SYNC-DETECT

EFM DEMODULATE

VDD

PCK

FSEQ

22 23

21

+B

56 57

/CQCK

55

54

COIN

SQOUT

EXTERNAL

CONT1

CONT2

24 25

R89 1K

R88 1K

RWC

OUTPUT

CONT3
26

R90 1K

WRQ

CONT4

27

C46 100P

C45 100P

C44 100P

C48 100P

C47 100P

49 50 51 52 53

FSX

SFSY

SBCK

SUB-CODE

X-TAL

GENERATOR

4FS

DIGITAL

FILTER

DIGITAL

OUT

DOUT

EMPH

C2F

CONT5

28 29 30 31 32

Q51

KRC107 M

3

2

1

C49 100P

PW

EFLG

SBSY
XVSS

XIN

XOUT
XVDD

MUTER

RVDD
RCHO

RVSS

1BIT

LVSS

DAC

LCHO
LVDD

MUTEL

PCCL

TEST4

TEST3

R54
330

48

47
46

45
44
43

C53

42
41
40
39
38

37
36
35
34
33

C50

3.3/16

0.022

R55 150

9

C28

/50

0.1

R44
33K

C26

40

.6K

R41
47K

R43
56K

HF

D1

1SS133

0.033

C25
27P

R38

470

R42
47K

R39

1K

C23

0.0027

C22
220P

C57

0.001

R47
10K

D3

RL104A

D4

RL104A

C37

0.022

CNP12

3

4

5

1

2

RWC (DSP)

WRQ (DSP)

COIN (DSP)

CQCK (DSP)

SQ_OUT (DSP)

FROM MAIN PWB

+B

10

8

9

7

6

SL–

SL+

DRF

GND(D)

RES (DSP)

CNSF12

P24 1-D

IC81

TA7291S

LOADING

MOTOR DRIVER

1 2 3 4

6

5

0V

0V

1V

6.4V

6.5V

6.5V

R83

C82

3.9K

47/16

11 121314

PIUN

DISC NO.

MECHA UP

OPEN/CLOSE

R85

56

8

9

7

0V

2.9V

6.5V

R82

6.8K

C81

47/16

R81

3.9K

R80

6.8K

Q93

KRC102 M

3

R87
10K

2

R86

1

2.2K

• The numbers 1 to 12 are waveform numbers shown in page 49.

Q91

KTA1271 Y

D91
1SS133

CD SERVO PWB-B

+B

CNP10

CNS10 1 BIM05

SOL

1
2
3
4
5
6
7
8
9

10 10

GND(M)
M–
M+
GND(D)

OPEN
/CLOSE

DISC NO.
GND(D)
MECHA UP
GND(D)
GND(D)

1
2
3
4
5
6
7
8
9

1 2 1

CNS5

SOLM2
SOLENOID

LOCK

2
3
4
5
6

+

2

–

M

SW1
OPEN
CLOSE

SENSOR PWB-J

M3 T/T
UP/DOWN
LOADING
MOTOR

SW2
MECHA UP

SW3
DISC NUMBER

7

8 9 10 11 12

Figure 23 SCHEMATIC DIAGRAM (2/18)

– 23 –

CD-K477W

0 022

O

2

CO

D

A

CNSD01

TO DISPLAY PWB

P32 1-D

CNP11

TO CD SERVO PWB

B

C

D

E

F

G

H

P23 11-C

CNP12

TO CD SERVO PWB

P23 8-H

CL

(µCON SIDE DI)

CE(CE1)

(µCON SIDE DO)

CNP303

TO TUNER PWB

P37 12-H

TO MECHA SECTION

TO DECK SECTION

CD R-CH

GND(Au)
CD L-CH
GND(CD)

+7.3V(CD)

+12V(M)

RWC
WRQ

COIN

SQOUT

CQCK

RES
DRF

D_GND

SLD+
SLD–

PUIN

OP/CL

DISC_NO

UP/DOWN

GND(D)

+12V(A)

GND(A)

TUN MUTE

TA_FR SPEED

TA_CAM_SW

P29 12-C

P29 12-E

CNPF01

10

GND(D)

9

GND(D)

8

+4.6V(D)

7

+12V(M)

6

COM1

5

RESET

4

DATA1

3

STB

2

SCK1

1

CNSF11

1
2

3
4
5
6

1
2
3
4
5
6
7
8
9

10

11
12
13
14

CNSF12

1
2

DO

3
4

DI

5
6
7
8
9

L-CH

10

R-CH

M +12V

M_GND

TA_MOT2_W

TA_SOL

T2_A_FP

T1_RUN
T2_RUN

T2_B_FP

TA_T1/T2

PB_MUT

TA_BIAS

HIGH_SP

TA_R/P

REC_MUT

TA_PB_EQ

GND(BIAS)

+12V(A)
GND(A)

REC L-CH

REC R-CH

PRE L-CH

PRE R-CH

CNSF13

BIF11

1
2
3

4

5
6

1
2
3
4

5

6

7

8

9

10

11
12
13
14

BIF12

QG04
KTA1266 GR

1

2

3

4

5

6

7

8

9

10

1111

BIF13

1

2

3

4

5

6

7
8
9

10
11
12

13
14
15
16
17
18

19

21
22
23
24
25
26
27

+B
+B

0V

QU02

KTC3199 GR

0V

+B

+12V(A)

GND(A)

RG10

RU95

2.2K

0V

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

+4.6V(D)

CG07
22/25

47K

RU96

2.2K

0V

0V

QU01

0V

KTC3199 GR

+B

RG24 10K

RG07 10K
RG06 10K

RG57 10K
RG58 10K
RG59 10K

RG23

10K

+B
+B
+B

RF87

RF94 1K
RF95 1K
RF96 1K

RF97 1K

DG06
1SS133

SWF02
SPAN

SELECTOR

RF81

RF82 1K

47K

RF88

CD UP/DOWN SW

10/100

9/50

MIC_DET

1K

H/P SW

SRS_A/NA
DOL_A/NA

S.W_ANA

47K

CD DISC No.SW

CD OP/CL SW

CD MUTE

RG05

RF80

S/N

VSS
VDD

CD RES

RF98 1K

10K

1K

RWC

RG56 1K

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

RF79 1K

9K/10K

POWER

79 78

80

PL6

PF7

(4.0V)

(4.0V)

PL1 (0V)
PL2 (4.0V)
PL3 (4.0V)
P30
P31
VSS3
VDD3
P32
P33 (4.0V)
P34
P35
P00
P01
P02 (8.8V)

(0V)

P06 (0V)

P07

1

2

SLD–

SLD+

RF01 1K

RF02 1K

RF78 1K

RF77 22K

RF76 1K

S.W MUTE

CENT MUTE

REAR MUTE

77

76

PF6

PF5

(3.8V)

(4.0V)

(0V)

(4.0V)

SO0

Si0

4

3

5

COIN

CQCK

SQOUT

RF03 1K

RF04 1K

RF05 1K

RF75 1K

RF73 100

RF71 1K

RF70 1K

RF72 1K

SDDIDO

SYS MUTE

TUN_MUTE

74

73

72

706968

71

7

5

PF0

PF4

PF3

PF2

PF1

PE7

(0V)

(4.0V)

(3.8V)

(3.8V)

(4.0V)

PL5 (0V)

81

PL4 (0V)

82

PL0 (0V)

83

SYSTEM CONTROL

MICROCOMPUTER

98

P03 (4.0V)
P04

99
100

P05 (0V)

(4.0V)

(4.0V)

(0V)

(4.0V)

(0.6V)

(0V)

SCK

SI1

SO1

P16

SCK1

P17

8

9

6

11

10

7

STB

WRQ

DAT

DS_RES

SCK

COM

RF09 1K

RF10 1K

RF11 1K

RF08 1K

RF07 1K

RF06 1K

RG11

10K

RF69 1K

RF68 1K

RF67 1K

ENA

CE

CL

67

66

PE5

PE3

PE6

PE4

(0V)

(0V)

(4.0V)

(4.0V)

ICF01

IX0235AW

(4.0V)

(0V)

(0V)

(0.4V)

P74

RES(MAIN)

P75

INT0

13

14

12

15

DRF

RES

PUIN

RF12 1K

RF13 1K

RF14 1K

10K

RG04

PE2

(0V)

VSS1

VSS

CG05

65

16

CF1

XF01

15P

64

PE1

(1.7V)
CF1

17

+B

636261

PE0

(2.0V)
CF2

18

CF2

CG06

RF63 1K

B

VDD

RF17 820

15P

PD7
(0V)

(4.0V)

VDD1

19

RF62 1K

PASS

VOICE CAM

PD5 (DI)

PD6

(3.6V)

(0.4V)

(0.4V)
AN0

AN1

SP_4KHz

SP_1KHz

RF20 1K

RF19 1K

RG38
100K

CG61

0.022

RF61
22K

60

59

PD4

PD3
(DO)

50
49
48

33
32
31

(0.4V)

(0.4V)

AN2

AN3

2120

22

SP_63Hz

SP_250Hz

RF21 1K

RG25

10K

VSS

58

57

PD2

PC4 (4.0V)
PC3
PC2

PA3 (4.0V)
PA2 (4.0V)
PA1 (4.0V)

(0.4V)
AN4

24

23

SP_16K

10K

RF24

RF231KRF22 1K

VDD

55

56

PD1

VSS2

VDD2

(0V)

(8.0V)

(0V)

(0V)

(0V)

AN5

AN6

AN7

26

25

SP LEVEL

TUN_SM

POSISTOR

RF25 1K

RF26 1K

RF54

10K

CENT/REAR RLY

52

54 53

PD0

PC7

(8.0V)

(4.0V)

4SP_A/NA

(4.0V)

(3.8V) PB6

(4.0V) PB4

(0V) PB3
(0V) PB2

(4.0V) PB1

(4.0V) PA7

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

(4.0V)

(4.0V)

INT1

INT2

27

28

29

SP PROT

T1_RUN

SYS_STOP

1K

1K

RF28

RF29 1K

RF27

RF52

PC6

PC1

PC0

PB7

PB5

PB0

(0V)
INT3

1K

RF51
1K

S.W RLY

51

50

PC5

49
48

(4.0V)

47
46
45
44
43
42
41

40
39
38
37
36
35
34
33

(4.0V)

32
31

PA0

30

RF30

1K

T2_RUN

RG16

47K

RG19
47K

RG26

10K

+4V(µ-CO

GND(µ-C

FRNT_RLY
FAN CONT

AMP

PB_MUT
TA_T1/T2
REC_MUT
TA_PB_EQ
TA_R/P
BEAT_CUT
TA_BIAS
FR SPEED(M)
HIGH_SP
TA MOTOR
TAPE_SOL
CAM_SW
T2_CRO S
T1_CRO S
T2_B-FP S
T2_A-FP S

CG56

GND(A)

CG08

0.001

+B

+12V(A)
–15V

–B

CH28

0.022

ICH11

NJM4558M

BUFFER

AMP.

RH17

1.5K

RH20

1.5K

RH25

1.5K

RH30

1.5K

RH35

1.5K

+B+B

+B

CH30

0.0056
+B

CH17

0.047

CH16
1/50

+B

CH20

0.015

CH19

0.47/50
+B

CH23

0.0047

CH22

0.1

+B

CH26

0.0012

CH25

0.027

2

3

CH13
330P

RH11

22K

RH12

RH14
560K

RH15
33K

RH21
560K

RH22
33K

RH26
560K

RH27
33K

RH31
560K

RH32
33K

RH36
560K

RH37
33K

1K

8

1

CH10

4

47P

DH11

1SS133

CH15

0.22/50

DH12

1SS133

CH18

0.22/50

DH13

1SS133

CH21

0.22/50

DH14

1SS133

CH24

0.22/50

DH15

1SS133

CH27

0.22/50

–

(1/2)

+

RH13
820K

–

6

(2/2)

7

+

5

DH16
1SS133

16KHz
SPE-1

RH16
1M

DH17
1SS133

63Hz

SPE-2

RH24
470K

DH18
1SS133

250Hz
SPE-3

RH29
1M

DH19
1SS133

1KHz

SPE-4

RH34
1M

DH20
1SS133

4KHz

SPE-5

RH39
1M

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

GND(A)

CH12
10/16

TUN L

TUN R

VI

+B

RG01

22K

CH29

0.022

+B

+B

+B

T

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

23456

Figure 24 SCHEMATIC DIAGRAM (3/18)

– 24 –

CD-K477W

4V(µ-CON)

GND(µ-CON)

NT_RLY
N CONT

P

_MUT
_T1/T2
C_MUT
_PB_EQ
_R/P
AT_CUT
_BIAS
SPEED(M)

H_SP
MOTOR
PE_SOL
M_SW

CRO S
CRO S
B-FP S
A-FP S

CG56

6

RF50 1K
RF49 1K

RF47 1K
RF46 1K
RG55 1K
RF44 1K

RF42 1K
RF41 1K
RF40 1K
RF39 1K
RF38 1K
RF37 1K
RF36 1K
RF35 1K
RF34 1K
RF33 1K
RF32 1K
RF31 1K

0.022

CG57

47/25

RG17
RG20
RG21
RG22

RG15

10K

+4V

10K
10K
10K
10K

QG05

KRC104 M

RF99
10K

RG37

1K

DG05

1SS133

CG04

0.01

2.2µH

LG01

QG01

KRC102 M

4.0V

2

1

3.3K

RG36

+4V

CD GND(D2)
CD GND(D1)

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

+4.6V(D)

QG03

4.0V

RG33
10K

RG32

0.4V

DG03

1SS133

100

ZDF01

RG31
1K

QG02
KTC3199 GR

CG03

RG35

1K

3.3/50

3

0V

4.0V

RG34

0V

DG04

1SS133

CG02

0.01

0V

RG39

82

+B

10K

0V

0V

KTC3199 GR

–B

MTZJ3.3A

RG30

DG02

150

1SS133

RG29

150

+B

+B

RESET
POINT

CG01

470/10

+B

+B
–B

CD GND(D2)

40

41

CD GND(D1)
GND(D)

42
43

+7.3V(CD)

44

+12V(M)

45

+4.6V(D)

46

AMP

47

SWF-MUTE

48

REAR-MUTE
CENT-MUTE

49

S-MUTE

50

S.W RLY(2)

51

CENT/REAR RLY(3)

52
53

SP PROT

54

POSISTOR
H/P SW

55
56

SP LEVEL
FAN CONT

57
58

FRNT RLY(1)
POWER

59
60

CL

61

DI
CE

62

GND(M)

63
64

+12V(A)
–15V

65

GND(BIAS)

66

GND(A)

67

GND(D3)

68

P27 9-H

TO PRE SECTION

FM SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
CD SIGNAL

C2B_CL

69

C2B_DI

70

(µCON SIDE DO)

71

PL_ENA
L CH OUT

72

R CH OUT

73

C OUT

74

S OUT

75

L CH IN

76

R CH IN

77

+B

78
79

+12V(A)
GND(AU)

P30 2-H

TO PROLOGIC SECTION

CU09
10/50

CU58

2.2/50

AUX 2

RU93

1K

RU94

1K

28

29

33

32

31

30

GND(A)

GND(A)

L-CH OUT

L-CH OUT

R-CH OUT

VIDEO2 IN VIDEO1 IN

TO PRE SECTION

P26 2 H

RU05

1.8K

CU35
CU07
CU05
CU03
CU01

CU02
CU04
CU06
CU08
CU36

R-CH OUT

CU45

1/50

RU03

15K

CU11
100P

2.2/50

2.2/50

2.2/50

2.2/50

2.2/50

2.2/50

2.2/50

2.2/50

2.2/50

2.2/50

CU46

1/50

CU12
100P

RU04 15K

RU06

1.8K
CU10

10/50

49

50
51
52

53
54
55
56

57

58
59
60

61
62
63

64

+B
–B

CU57

2.2/50

LSELO
(5.0V)

L5
L4
L3
L2
L1
VDD
R1
R2
R3
R4

R5

RINVIN1

(5.0V)

RSERO

(5.0V)

RTIN
(5.0V)

CU16

0.47/50

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

(10.1V)

(5.0V)

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

48

LTIN

(5.0V)

RF1C1

CU15

0.47/50

47

(5.0V)

2 1

+12V(A)

–15V

CU17

CU21

CU23

0.18

0.18

0.15

(ML)

(ML)

(ML)

43

44

46

45

LF1C3

LF2C1

LF1C2

(5.0V)

(4.8V)

(5.0V)

LF2C2

(5.0V)

LF1C1

(5.0V)

AUDIO PROCESSOR

(5.0V)

(4.8V)

(0V)

(0V)

(0V)

RF1C3

RF2C1

RF2C2

4

CU22

0.18

(ML)

5

CU24

(ML)

0.15

CU64

0.022

6

RF2C3

RF1C2

CU18

0.18
(ML)

3

CU27

CU25

0.027

0.22/50

40

42

41

LF2C3

LF3C1

LF3C2

(4.8V)

(5.0V)

(5.0V)

ICU01

LC75396N

(5.0V)

(5.0V)

(4.8V)

RF3C1

RF3C2

RF3C3

8

9

7

CU28

0.027

CU26

0.22/50

CU63
100/16

RU21 1K
RU26 1K
RU25 1K

39

LF3C3

(4.8V)

(5.0V)

RF4C1

10

CU30

0.015

DU02

1SS133

RU22

CU29

38

11

0.015

LF4C1

(5.0V)

(5.0V)

RF4C2

CU32

0.0022

37

LF4C2

(5.0V)

(4.8V)

RF4C3

12

DU01

1SS133

1K

36 35

13

CU34

0.0047

REC L-CH

REC R-CH

CU31

0.0022

LF5

LF4C3

(5.0V)

(4.8V)

(CON SIDE DO)
(0V)

(5.0V)

(5.0V)

RF5

RTOUT

14

CU40
10/50

RU02
470K

CU33

34 33

15

0.0047

LTOUT

(5.0V)

(5.0V)
(5.0V)

(5.0V)
(0.1V)

(5.0V)

(5.0V)

RFIN

(5.0V)

(5.0V)

(0V)

(5.0V)

(0V)

16

LFIN

LFCOM
LFOUT

LRCOM

LROUT

(0V)

RROUT
RRCOM

(5.0V)

RFOUT

RFCOM

CU41
10/50

CU39

10/50

(5.0V)
(5.0V)

LRIN

LVref

RVref

(5.0V)

RRIN

(5.0V)

1

CNPU02

2
3
4
5
6
7
8
9

V, CAN
OUT(L)

IN(L)
GND(A)
+12V(A)

OUT(R)
IN(R)
GND
MIC

FROM

KARAOKE PWB

P31 9-A

CNSU02

1K

RU23

1K

RU24

CU42
10/50

32
31

CU61

30

10/50

29

CU52

28

10/50

27
26

VSS

RU09 1K

25

CE

RU10

1K

24

DI

1K

RU11

23

CL

CU43

Vref

22

47/16

21
20

CU51

19

10/50

18

(0V)

17

CU62
10/50

CU55
47/16

RU14

CU50

1/50

470K

RU01

470K

RU12

CU54

1/50

RU16

CU49

1/50

1/50

CU53

1K

1K

RU15

47/16

CU56

1K

1K

RU13

+B

38

34

35

37

36

39

GND(A)

GND(A)

L-CH OUT

R-CH OUT

VOLUME

PRO S-CH OUT

OUT

PROLOGIC

ONLY

TO PRE SECTION

P26 5-H

MAIN PWB-A(1/ 4 )

PRO C-CH OUT

7

8 9 10 11 12

Figure 25 SCHEMATIC DIAGRAM (4/18)

– 25 –

CD-K477W

5

9

0

9

–

+

6

R

A

B

C

D

E

F

G

FW901

FROM POWER PWB

P39 8-G

FWD02

FROM DISPLAY PWB

P321-B

INPUT

VIDEO/AUX-2

INPUT

VIDEO/AUX-1

MAIN PWB-A (2/4)

WTP01

VF1

1

–38(VP)

2

VF2

3

VF2

3

–38(VP)

2

VF1

1

WTP02

JR12

L-CH

R-CH

JR11

L-CH

R-CH

CR10

RR15

RR16

0.001

27K

27K

RR11

27K

RR12

27K

DR11

1SS133

CR11
390P

CR12
390P

DR12

1SS133

CR13
390P

CR14
390P

FM SIGNAL

0V

0V

10.9V

10.9V

14

15

1213

NC

VSS

VDD

ICP70

LC7536

ELECTRIC VOLUME

DI

CL

NC

19

16

18

17

0V

4V

0V

1K

RP791KRP801KRP81

CE

DI

CL

RR17

1.8K
RR18

1.8K

RR13

1.8K
RR14

1.8K

33

31

32

30

28

2

9

L-CH

L-CH

R-CH

R-CH

GND(A)

GND(A)

VIDEO-2 VIDEO-1

RR74

47K

10V

8

0V

6

–

0V

RP11

RP10
100K

35

GND(A)

100

S CH

0V

R-CH

34

R-CH IN

5

RP15
100K

RP16
100K

RP12

100

38

ICR15

(2/2)

+

–10V

–B

CP48

0.1(ML)

RP35
100K

CP15

0.1(ML)

GND(A)

RP63 100K

CP16

0.1

7

CR57
10/50

4

RR75
100K

CR64

0.022

CP50

0.1(ML)
5

0V

0V

6

RP64

8.2K

RP6

2.2K

CP49 47P

RP3
56K

2

0V
0V

3

NJM45
BUFFE

CP19

0.1(ML)
5

0V
0V

6

RP17

8.2K

RP1

2.2K

RP2

2.2K

RP18

CP18 47P CP17 47P

8.2K
2

0V

0V

3

CP20

0.1

(ML)(ML)

CR55

CR56

10/50

47P

CR63

0.022

RP85
82K

0V

–

2

ICP71

1

(2/2)

28

RP84

680

LCT1

RCT1

0V

0V

4

CP73

0.022

0V

0V

2 3 4

29

0V

RP74

1

1K

NC

CP70
1/50

L5dBIN

7

0V

CP72
100P

R5dBIN

NC

30

0V

+B

CP79

0.022
NJM4565M

BUFFER AMP.

10.9V

8

+

ICP71

(1/2)

–

RP76

15K

RP75
100K

–B

+B
–B

+12V(A)

–15V

CP83
10/50

0V

5

CP71
47P

6

0V

CP80
47/25

CP81
47/25

RP82 220

RP83 220

0V

+

3

CP77

1/50

6

L1dBIN

R1dBIN

0V

CP78
1/50

5

L5dBOUT

R5dBOUT

26

0V

RP77

27

–10.9V

1M

LCT2

RCT2

0V

RP78
100K

CP76

1/50

CP74

0.022
CP75

0.022

0V

0V

–10.9V

10

VEE

21

VCC

62

4.8V

MTZJ4.7B

CEDICL

9

LVM

RVM

22

ZDP01

8

L1dBOUT

R1dBOUT

232425

CP82

0.022

CP84

1/50

0V0V0V0V0V

7

NC

NC

0V0V0V

0V

11

S

NC

NC

CE

20

0V

0V

61

60

RR73

47K

RR86

470K

RR71

47K

RR72

47K

–15V

+12V(A)

C CH

CP42

2.2/50

39

37

PRO-C IN

RP52

CP29

2.2/50

RP33

1K

L-CH

–B

PRO-S IN

100

RP09
100K

36

L-CH IN

TO MAIN SECTION

P25 7-H

TO MAIN
SECTION

P25 12-A

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

23456

Figure 26 SCHEMATIC DIAGRAM (5/18)

– 26 –

TO MAIN SECTION

P25 10-H

CD-K477W

RR74

47K

0V

7

CR57
10/50

RR75

100K

CR64

0.022

CP50

0.1(ML)

0V

0V

P64

8.2K

RP65

2.2K
RP39

56K

0V
0V

NJM4565M
BUFFER AMP.

DIGITAL-OUT

1

ICR11

GP1F38T

2
3

CR02

100/10

1

0V

CP40

0.022

CP39

0.022

RR79

1.8K

+B

CR61
10/50

RR80
100K

QP16
C3199 GR

QP13

C3199 GR

QR21

KTC3199 GR

CR62

0.0022

CENTER MUTE

RP70

5.6K

CP53

0.001
GND(A)

CP37

0.001

RP47

REAR

5.6K
MUTE

+B

RR82

4.7K

OUT3(S.W)

S.W.MUTE

+B

CENTER

MUTE

(CcH)

KRA107 M

REAR
MUTE

(Sch)

QR11

KRA107 M

OUT4(CcH)

OUT5(Sch)

+12V(A)

2 3

QR13

KRA107 M

2

QR12

1

2 3

1

CENTER MUTE

REAR MUTE

1

3

S.W. MUTE

CR17

4.7/50

RR21

47K

CR16

4.7/50
RR20

47K

CR15

4.7/50
RR19

47K

GND(A)

REAR RLY(3)

PROT

POSISTOR
AMP

RR78

47K

47K

RP67

100

100P

CR59

RP41

12K

0V

–

2

ICR15

3

+

47P

0V

BUFFER AMP.

–B

RP68

1K

7

0V

CP85

0.001

0V

1

RP43

1K

CR60

0.0056

(1/2)

NJM4558M

–B

CP52
10/16

RP69

8.2K

RP45

8.2K

CP35

4.7/50

+B

RR77

RR76

47K

CR58

0.0056

–10V

4

5

+

ICP12

(2/2)

6

–

CP51

2

–

ICP12

(1/2)

+

3

8

10V

GND(D)

LR01

2.2µH(DH)

CR01

0.022

RR01

100

ZDR01
MTZJ3.3B

CR03

0.001

+B

CNPR11

DOUT

3

+4.3V

2

GND

1

1

CFWP02

1

2
3
4

5

6

7

8

9

10
11

11

FWP02

CNS99

FROM

CD SERVO PWB

P23 11-D

1

OUT4(Cch)
GND(M)
OUT5(Sch)
+12V(M)
GND(A)
FAN SW
RELAY3

PROT
POSISTOR
AMP

11

CFWX11

TO

SPEAKER

AMP.1 PWB

P34 1-F

CP19

0.1(ML)

P17

8.2K

P18

8.2K

CP20

0.1

(ML)

5

0V
0V

6

RP19

2.2K

RP20

2.2K

2

0V

0V

3

NJM4565M
BUFFER AMP.

10V

8

+

ICP11
(1/2)

–

CP07 100P

CP08 100P

RP22

–

ICP11

(2/2)

+

4

–10V

RP21

100

100

–B

FWP01

1

1

CFWP01

1

2

3

4

5

6

7

8

9

10
11
12

13

14

15

16

+B

CNPP01

+12V(M)

–B

1

2

3
4

5

+B

6

7

8

9

10
11

2 3

16

–15V(A)

GND(A)
+12V(A)
+12V(M)

GND(M)
+4.6V(D)

GND(D)
+7.3V(CD)
CD GND(D1)
POWER
GND(D3)

16

OUT3(S.W)
S.W RLY(2)
OUT1(FRONT L-CH)
FRNT RLY(1)
GND(A)
FAN CONT
OUT2(FRONT R-CH)
SP LEVEL
GND(M)
H/P SW
+12V(M)
FAN SW

PROT
POSISTOR
AMP

CNS901

FROM POWER PWB

P38 1-H

CFWV11

TO

SPEAKER

AMP.2 PWB

P34 1-B

45

GND(M)

+4.6V(D)

RELAY2
OUT1(L-CH)
RELAY1
GND(A)
FAN CONT
OUT2(R-CH)
SP LEVEL

H/P SW

PROT
POSISTOR
AMP

+4.6V(D)

66

43

41

+7.3V(CD)

GND(BIAS)

OUT3(S.W)

+B
+B

+B

59

66

POWER

GND(D3)

CD GND(D1)

1

QP17

KRC107 M

CP27

CP23

RP25

10/16

1K

7

0V

RP27

8.2K

RP28

8.2K

CP24
10/16

0V

1

RP26

1K

QP11
KTC3199 GR

CP25

0.001

CP26

0.001

QP12

KTC3199 GR

RP29

5.6K

RP30

5.6K

S-MUTE

50

S-MUTE

0.022

CP28

0.022

–B

+B

RP73
22K

CP57
22/25

CP09

100/16

CP10

100/16

RP32

42

150

–B

GND(D)

65

–15V

OUT1(L-CH)

GND(A)

OUT2(R-CH)

+B

RP31

150

+B

64

+12V(A)

–15V

+12V(A)

GND(D)

48

49

REAR MUTE

TO MAIN SECTION

47

52

S.W. MUTE

CENTER MUTE

P25 12-B

51

S.W RLY(2)

REAR RLY(3)

58

56

57

SP LEVEL

FAN CONT

FRNT RLY(1)

55

H/P SW

5453

PROT

POSISTOR

44

46

63

AMP

+12V(M)

7

8 9 10 11 12

Figure 27 SCHEMATIC DIAGRAM (6/18)

– 27 –

CD-K477W

Y

5

A

TAPE

MOTOR

B

C

MM1

TAPE MECHANISM ASSEMBLY

TAPE MICHANISM PWB–H

FWM2

L
H

+

VRM1

M

REC FWD

CAM SW

SOLM1

SOL

REC RVS

SWM3

SWM6

SWM4

SWM5

F.A.S

2

3.3K(B)

PHM1

RM1

2.7K

REC FWD

RUN PULSE

REC RVS

MOT+B

CAM SW

M2GND

F.A.S

SOL

PLAYBACK SIGNAL
RECORD SIGNAL

QL11

KTA1266 GR

0V

0V

RL11

33K

0V

RL12

0V

0V

QL12

KTA1266 GR

DGND

2.2K

0V

RL14

33K

QL14

KTA1273 Y

12V

0V

RL15

10K

0V

CL12
47/16

QL15

RL17

KTA1271 Y

10(1/2W)

12V

0V

RL18

10K

12V

DL12

1SS133

RL20

1.2K

RL13

6.8K

FWM1

L

1

1

H

2
3
4
5
6

7
8

+B

9

10
11
12
13

13

MOT L

MOT H
MOT +B
T2 A-FP

CUM SW

M2GND

T1 RUN-SW
T2 PH-OUT

+B

SOL

T2 B-FP

1
2
3
4
5
6

7
8
9

10
11
12
13

WTL11

DL13

1SS133

DL14

1SS133

RL16

2.2K

RL19

2.2K

QL13

KRC104 M

2

0V

1

QL17

KRC104M

2 3

0V 4V

0V

1

3

4V

0V

QL18

KRC104 M
2

12V

1

0V

3

0V

D

E

F

G

TAPE2

RECORD/
PLAYBACK HEAD

R-CH L-CH

ERASE

HEAD

TAPE2 HEAD

PWB

TAPE1

PLAYBACK HEAD

L-CH

R-CH

1
2
3
4

5

6

BI102

CNSK01

RK33

22K

QK13

RK19

CK15
47/16

CK16
47/16

RK20

KRC104 M

2

3

RK21

RK23

56

100K

3.9K

CK19

CK17

560P

0.033

CK21

1/50

0.6V

3

112K

–
+

+

-

112K

22

3.0V

CK22

1/50

CK20

CK18

560P

0.033

RK24

RK22

3.9K

100K

56

QK14

KRC104 M

RK34

68K

RK27

1

8.2K
RK31

RK25

33K

5.6K
CK23

0.1

CK25

0.0082

RK29

10K

RK30

10K

0V

RK32

33K

1.3V

5

20

CK27

0.022

3.0V

4

21

CK26

0.0082

RK26

5.6K

CK24

0.1

RK28

8.2K

213

19

6

3.3/25

CK28

RK35

RK37

6.8K

RK38

6.8K

RK36

3.3K

RK47
10K

3.3K

CK29

CK31
270P

0V

7

HIGH=CHROME

18

0V1.3V

CK32

270P

CK30
470P

470P

CK33
22/25

CK34
22/25

8

17

CK10
47/25

CK35

0.022

RK39

560

LK01

1.8mH

0.6V

PLA

0.6V

LK02

1.8mH

RK40

560

CK36

0.022

–
+

+
–

5

RK01

RK13

10K

1K

RK02

1K

QK07

KTC3199 GR

0V

RK09

4.7K
RK07

RK08

47K

0V

RK10

4.7K

KTC3199 GR

CK09

0.022
RK14

10K

0V

0V

47K

0V

0V

QK08

1

2 3

0V

KRC104 M

0V

QK10

CK07

0.001

CK08

0.001

3.8V

REC

1

0V

3

QK11

KRC104 M

RK17

RK18

2

0V

CK11

1K

1K

RK15

4.7K

330P

0V 0V

0V

CK13
330P

2

1

HIGH=T1

23

24

0V 0V 0.6V

CK12

CK14

330P

330P

RK69

CK60

220

100/16

CK01

CK05
330P

RK89

680P

CK02
680P

0V

RK03

QK06

QK04

0.7V

0V

0.7V

0V

RK11

RK12

0V

0.7V

0V

0.7V

0V

REC

KTA1266 GR

2.2K

RK05

3.3K

15K

15K

RK06

3.3K

RK04

2.2K

8.7V 8.7V

QK09

8.0V

REC

QK03

2SC1845 F

QK05

2SC1845 F

CK06

330P

RK90

1K

1K

2SC1845 F

2SC1845 F

3 3

2

2

1

1

CNPK01

7

7

6

6

5

5

4

4

3

3

2

2

1

1

CNPK02

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

23456

Figure 28 SCHEMATIC DIAGRAM (7/18)

– 28 –

MAIN PWB-A(3/4)

CD-K477W

M
3

0V

0V

3

2

12V

QL19

KRC104 M

1

0V

1SS133

RL24

3.3K
CL13

3.3/50

2SC2878 A

CK10
47/25

CK35

0.022

RK39

560

LK01

1.8mH

33
25

0.6V 3.0V

8

–
+

OME

PLAYBACK AND RECORD/PLAYBACK AMP.

+
–

17

0.6V

34

/25

LK02

1.8mH

RK40

560

CK36

0.022

56K

56K

CK37

0.018

RK41

RK42

CK38

0.018

82

82

HI.SP

1

2

3

QK15

KRC104 M

CK39

0.0033

AN7345K

CK40

0.0033
QK16

KRC104 M

2 3

1

ICK01

HI.SP

RK45 10K

CK41
47/25

0V

9

NOR/CrO

16

3.0V

CK42
47/25

RK46

DL11

PB.MUTE

QK17

RK49 10K

RK50

10K

CK45
22/25

15

ALC

10

3.0V

10K

0V

1

0V

3

KRC107 M

RK43

10K

CK43

0.022

1

2

KRC104 M

3.7V 6.0V
14

13

2

RIPPLE

ALC GND

11

12

0V 0V

RK52

1K

2

QL16

RK48

10K

CK44

0.022

3

QK19

CK46

220/10

VCC

4.1V

QK18

2SC2878 A

HI.SP

CK47

0.022

TA2F/R SPEED

TA_MOT2SW

M_12V

TA_SOL
T2_A_FP

TA_CAM_SW
M_GND
T1_RUN

T2_RUN
T2_B_FP

T1_CRO2

RK57

4.7K

RK58

470

CK62

0.047

RK66

27K

CK50

0.0082(P.P)

CK51

0.027(ML)

QK24

KTA1266 GR

RK60

270

RK67

47K

0V

RK68

4.7

LK04

330µH

RK61

LK03
1mH

270

0V

0V

RK62

47K

11.7V

11.7V

BIAS

0V

KTA1266 GR

QK28

2SC2236 Y

CK52
47/16

QK25

11.6V

RK64

4.7K

RK63

10K

RK65

1K

QK22

KTC3199 GR

0V

0V

RK54

QK26

KRC104 M

2

0V

1

1

2

QK27

KRC104 M

0.7V 0.7V

10K

3

0V

3

RK53

10K

QK40

KRC107 M

3

2

RK55

33K

RK56

33K

0V

QK21

KTC3199 GR

0V

RK74

82K

TA_F/R SPEED

3

TA_MOT_SW

4

M_12V

1

TA_SOL

5

T2_A_FP

6

TA_CAM_SW

7

M_GND

2

T1_RUN

8

T2_RUN

9

T2_B_FP

10
11
12

T2 Cro2 H:Cro2

L: NORM

TA T1/T2H:T1 L:T2

13

PB.MUTEH:ON L:OFF

14

PRE L-CH

26

HI. SP H:LOW L:HIGH

16

PRE R-CH

27

GND(A)

23

CK55

0.022

12V(A)

22

BIAS H:ON L:OFF

15

QK30

KRC104 M

3

1

RK81

2

6.8K

1

3

1

QK29

KRC107 M

2

RK75

RK73

82K

RK72

56K

56K

REC L-CH

24

REC R-CH

25

TA R/P@H:PB L:REC

17

REC MUTE

18

TA PB EQ L:NORM

19

H:Cro2

GND(BIAS)

21

P24 1-E

TO MAIN SECTION

P24 1-G

TO MAIN SECTION

7

8 9 10 11 12

Figure 29 SCHEMATIC DIAGRAM (8/18)

– 29 –

CD-K477W

A

B

C

D

CC96 100P

CC97 100P

CC98 100P

RC13 3.3K

RC54 1K

RC55 1K

RC56 1K

RC15 1K

RC16 1K

RC59
100K

RC60
100K

RC61
100K

RC62
100K

RC14 3.3K

+B

CC75
680P

CC76

0.047(ML)

CC78

0.47/50
CC81

47/16

CC53

0.1(ML)

CC51

(ML)

XLC01

0V

3.9V

3.9V
0V

3.9V
0V

5.0V

5.0V
0V

CC77

0.022(ML)

5.0V

5.0V

5.0V

5.0V

5.0V

0.1V

0.1

DC01

1N4004S

8MHz

33
34

0V

35
36
37
38
39
40
41
42

43
44
45
46
47
48

DC02

RC53

2.3V

32

VSS
CLK
DATA
ENABLE
DATA
CLK
OSC
NS-BPF2
NS-BPF1
GND
C-MODE
DC-OUT
LT-IN
RT-IN
L-BPF1
L-BPF2

49

1N4004S

1M

0.082(ML)

CC74 220/16

CC73

2.5V

5.0V

5.0V

31

29

30

28

A/D

VDD

OSC

OSC

L-BPF3

DCOUT3

50

49

DCOUT4

52

50

53545556575859 60

51

5.0V

5.7V

5.0V

5.0V

CC67

0.0033(ML)

CC71 0.082(ML)

CC72

5.0V

5.0V

NS

10/50

CC69 0.33/50

CC70 0.47/50

5.0V

5.0V

5.0V

25

24

23

2627

D/A

L-OUT

DC-OUT

DC-OUT

ICC01

DECORDER

R-RECT

DOLBY PRO LOGIC

51

L-RECT

VLR-TH

VLR-1

VLR-2

VCS-2

5.0V

5.0V

5.0V

5.7V

5.0V

CC60

0.022

CC68

10/50

RC52 39K

0V

0V

1.9V

5.0V

22

21

20

GND

IREF

S-OUT

R-OUT

LV1035M

L-R-RECT

DCOUT1

63

64

62

VCS-1

VCS-TH

L+R-RECT

DCOUT2

61

5.0V

5.0V

5.0V

5.7V

CC64

220/16

CC65 2.2/50

0.7V

5.0V

19

18

17

S-IN

DET

VCC

R-IN
L-IN

17

AC-GND

L-OUT
R-OUT
S-OUT

DELAY-OUT

C-OUT

VCC

VREF

L-DC-OUT

R-DC-OUT

R-BPF3

C-DC-OUT
S-DC-OUT

R-BPF1
R-BPF2

63 64

62

5.0V

5.7V

5.0V

MAIN PWB-A (4/4)

RC51

RC18 3.6K

RC17

3.3K

CC55 10/50
CC56 10/50
CC57 10/50

CC58 10/50
CC54

0.1(ML)

18K

CC63

220/16

CC62
10/50

CC59
220/16

CC52

0.1(ML)

5.0V

16

5.0V

15

5.0V

14

5.0V

13

5.0V

12

5.0V

11

5.0V

10

5.0V

9

10.0V

8

7

5.0V

6

5.0V

5

5.0V

4

5.0V

3

5.0V

2

5.0V

1

5.0V

E

RC19

2.2K

RC20

2.2K
CC47

F

+B

RC58 10K

RC57 10K

47/25

CC48

CC09

0.022

47/25

RC01

+12V

0V

220K

CC82 0.47/50

6.0V

+B

G

69

C2B_DI

C2B_CL

PL2ENA

H

TO MAIN SECTION

7

S OUT

C OUT

L-CH OUT

R-CH OUT

P25 12-D

5

74

73

707172

76

77

L-CH IN

R-CH IN

79

78

+12V(A)

GND(AU)

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

CC85 4.7/50

CC83 4.7/50

CC84 0.47/50

CC79

L-CH

6.0V

1

+B

8

4

ICC02

(1/2)

+

3

RC03

1K

CC03

47P

CC01

2.2/50

CC87 3.3/50

CC86 0.15/50

CC88 0.15/50

CC89 0.15/50

10/50

RC07

4.7K

BUFFER

NJM4565M

­2

6.0V

RC05

8.2K

CC92 4.7/50

CC90 3.3/50

CC91 0.15/50

CC07

47P

CC05

47/25

CC94 4.7/50

CC93 0.47/50

CC95 0.47/50

CC08

47P

RC08

CC06

47/25

RC06

8.2K

6.0V

RC02

220K

CC80

4.7K

CC02

10/50

­6

2.2/50

6.0V

7

(2/2)

ICC02

CC04

47P

R-CH

+

5

6.0V

RC04

1K

FM SIGNAL

1

23456

Figure 30 SCHEMATIC DIAGRAM (9/18)

– 30 –

TO MAIN PWB

CNPU02

P25 12 - E

CD-K477W

KARAOKE PWB-J

+B

R612

56K

BI601

C618

1

1

OUT(L)

V.CAN

V.CAN

R614

0.01(ML)

30K

5

3

2

6

948

7

CNSU02

FM SIGNAL

IN(R)

L-in

948

7

GND(D)

MIC

+B

R670
220

C677
47/25

ZD631
MTZJ5.6B

R668

1.2K

R667
100

6.4V

5.4V
C674

4.7V

47/25

C673

0.022
C672

47/25

+B

R-in

DIGITL
ECHO

VR603
20K(B)

C626

0.1/50

R669
220

VOLTAGE
REGULATOR

Q631

KTC3203 Y

C627

0.022(ML)

C628

0.082(ML)

5

GND(A)

+12V(A)

6

OUT(R)

3

2

IN(L)

+B

L-out

R-out

C619

100P

C617

0.15/50

2.3V

4.7V

36

VCFIL

IC601

MIC AMP.

M65845FP

MIC IN

1

2.3V

C602

0.47/50

35

VALC

ALC1

2

R610

0V

R603

C604

2.2/50

1K

0V

34

AUD SW2

MIC1 NF IN

3

2.3V
C605

R604

1K

R611

0V

33

AUD SW1

MIC1 OUT

4

2.3V

270P

150K

C633

VR602

1K

0.5V

1.6V

31

32

CLOCK

MIC SW

MIC2 IN

MIC1 VOL IN

5

6

2.3V
C606

0.1/50

2.2/50

20K(B)

MIC2 VOLUME

R602

5.6K

D601

1SS133

C621

2.3V

30

MIC ECHO OUT

ALC2

7

0V

2.3V

R636

C608

C620

2.2/50

2.3V

2.3V

29

L LINE OUT

MIC2 NF IN

8

2.3V
C609

R605

1K

2.2/50

C623

2.2/50

2.2/50

2.3V

28

R LINE OUT

MIC OUT

9

2.3V

270P

C611

0.1/50

150K

C610

2.2/50

VR601

20K(B)

5.6K

R601

C622

2.2/50

C624

2.3V

26

27

L LINE IN

R LINE IN

MIC2 VOL IN

MIC OUT

10

11

2.3V

2.3V

R606 15K

MIC1

VOLUME

R615

3.3K

0.1/50

2.3V

2.3V

25

24

LPF2 OUT

ECHO VOL IN

LPF1 IN

LPF1 OUT

13

12

2.3V
C612

0.0082

R608 15K

R607 10K

C634

0.082

C601

0.47/50

15K

R616

R618

15K

R617

10K

C625

2.3V

2.3V

0.0082

23

22

LPF2 IN

DA INT OUT

AD INT IN

AD INT OUT
15

14

2.3V

2.3V

2.3V

R609 33

C613 0.068(ML)

C614

(ML)

C630

C629

0.068

2.3V

21

DA INT IN

AD CONT
16

0.6V

0.22

(ML)

0.22(ML)
+B

(ML)

0.6V

20

DA CONT

REF

17

2.3V

C615

220/10

C632
100/10

4.7V

19

VCC

GND
18

0V

C631

0.022

R619

22K

C616

0.15/50

J602

MIC2

7

8 9 10 11 12

J601

MIC1

Figure 31 SCHEMATIC DIAGRAM (10/18)

– 31 –

CD-K477W

7

S1

0

K

1

2

3

Y

Y

Y

Y

)

V

8
V
V

V

FM SIGNAL

A

B

C

D

E

WTV11

TO SPEAKER

AMP.2 PWB

P35 11-D

TO MAIN PWB

FROM MAIN PWB

HP-LCH

GND(A)
HP-RCH
GND(M)
H/P SW

WTP02

P26 1-E

CNPF01

P24 1-A

5

5

1

1

FWV91

HEADPHONES PWB-C3

3 1 3

VF2
–38(VP)
VF1

1

FWD02

10

9

GND(D)

8

COM1

STB

SCK1

7
6
5
4
3
2
1

CNSD01

+B

+B

+B

+4.6V(D)

+12V(M)

RESET
DATA1

LEDD20

KL052UL

LEDD21

SLR505MC

RV91

220

RV92

220

LV91

2.2µH(XH)

RD54

1.2K

RD55

820

CV91

100

QD07

KRC107 M

2

2

1

QD08

KRC107 M

X2

JV91

HEADPHONE

CV92

100

CD28

1/50

3

R-PLAY

1

REW

3

+B

1/50

CD29

LEDD14

SLR325MG

LEDD16

SLR325VR

LEDD17

SLR325VR

LEDD18

SLR325MG

CD30

+B

1/50

(YELLOW)

F-PLAY

(YELLOW)

STOP

(GREEN)

FF

(YELLOW)

PAUSE

LEDD05

SLR325MG

LEDD07

SLR325VR

LEDD08

SLR325MG

LEDD10

SLR325VR

LEDD11

SLR325MG

CD18 150P

CD10

220/6.3

LEDD06

SLR325MG

LEDD09

SLR325MG

LEDD13

SLR325VR

CD20 150P

CD19 150P

LEDD15

SLR325MG

CD11

0.022

LEDD01

KL052UL

LEDD02

KL052UL

LEDD03

SLR505MC
LEDD04

KL052UL

RD52

560

RD53

1K

LEDD12

SLR325MG

CD21 150P

SLR325MG

3

RD51

1.2K

2

1

LEDD19

RXD01

REMOTE

CONTROL

SENSOR

RD50

820

2

2

RD49

1.2K

RD57

1
3

39

RD48

1.2K

2

2

1
3

QD05

QD06
KRC107 M

1

2

2

1

3

1

3

KRC107 M

CD09
150P

3

1

1N4004S

3

RD04 1K
RD05 1K
RD06 1K

RD07 560

RD08 1K

RD09 560

RD10 1K

RD11 560

RD12 1K

RD13 560

RD14 1K
RD15 1K
RD16 1K
RD17 1K

DD01

DD02

1SS133

QD01

KRC107 M

QD02

KRC107 M

QD03

KRC107 M

QD04

KRC107 M

RD03

1K

PAUSE

VDD

DATA1

COM1

SCK1

+B

RD58
100K

VSS

FF

RD19

RD21

RD22

STROBE

1K

1K

1K

RD02

1K

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

PG1
(0V)
PG2
(4.0V)

PG3
P00
P01
P02
P03
VSS2
VDD2
P04
P05
P06
P07
SO0
SI0
SCK0
SO1
SI1

RD59

100K

P16

F1

1 2 3 4

F-PLAY

STOP

S46

S47

(0V)

SRS-G
SRS-R
PHANT-G

PHANT-R
VIRTUAL-G
VIRTUAL-R

(0V)

(4.1V)
NORMAL-G
NORMAL-R
STEREO-G
STEREO-R
(0V)
(0V)

(4.0V)

(0V)

(0V)

P17

(0.6V)

1

2 3

RD01

1K

(0V)

(0V)

R-PLAY

CD05

0.001

F1

NC

NC

7677787980

S45

S44

S43

(0V)

(0V)

(0V)

81

(0V)

(0.6V)
(10.8V

(–6V)

(10.8

(0.6

(10.
(9.0
(0.4

100

(0V)

(0V)

P30

P31

P32

(0V)

4

5

REW

F

RE17

SWD19

SWD28

SWD37

SLEEP

RE28

12K

RE18

12K

PHANTOM

RE38

12K

5.6K

SWD17
F-PLAY

SWD27

SWD36

TIMER

RE19

27K

SWD20

SUB WOOFER

VOLUME DOWN

G

SWD29

BYPASS

SWD38

CLEAR

RE29

27K

SUB WOOFER

VOLUME UP

NORMAL

RE39

27K

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

23456

Figure 32 SCHEMATIC DIAGRAM (11/18)

RE16

3.9K

RE27

5.6K

RE37

5.6K

MEMORY

– 32 –

SWD16

REC/PAUSE

RE26

3.9K

SWD25
4 SP-2

RE36

3.9K

RE15

2.2K

RE25

2.2K

+B

HIGH EDIT

SWD34 SWD35

CLOCK

SWD15

SWD24
4 SP-1

RE35

2.2K

RE14

1.8K

SWD33

R-PLAY

RE24

1.8K

SWD14

NORMAL EDIT

RE34

1.8K

RE13

SWD32

REVERSE

MODE

1.2K

RE23

1.2K

SWD04

PRE EQ.

SWD13

STOP

RE33

1.2K
SWD31

PAUSE

CD

RE02

1K

RE12

1K

TUNING UP/CUE

RE22

1K

RE32

1K

SWD03

X-BASS

SWD12

SWD30

TUNING DOWN
/REWIND

KE

RE

8.2

KE
RE

8.2

RE

8.2

KE

RE

8.2

KE

CD-K477W

–

FLD01

FL DISPLAY

NC

4

5

S4

S3S2S1

8

9

6

7

S9S8S7S6S5

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

S14

S13

S12

S11

S10

S19

S23

S22

S21

S20

S18

S17

S16

S15

S27

S26

S25

S24

1G

2G

3G

+B

S23

S22

S21

S20

S19

S18

S17

S16

S15

S14

S13

S12

S11

S10

S38

(–28V)

(0V)

FL-SET

INT0

47K

RD30

S37

(–30V)

(4V)

/RES

RESET

RD31

RD61

S9S8S7S6S5

S36

S35

S34

(–30V)

(–30V)

(–30V)

ICD01

IX0234AW

(0V)

(4V)

(4V)

P74

P75

VSS1

VSS

VOL JOG UP

VOL JOG DOWN

1K

RD32

1K

1K

RD33

10K

CD06

0.001

S33

(–30V)

(1.7V)
CF1

XCIN

XD01

CD01

0.022

CD02

100/10

S32

(–30V)

(1.9V)
CF2

XCOUT

8.2K

RD62

S31

S30

(–30V)

(–21V)

(4V)

(0V)

VDD1

AN0

VDD

TUN-SET

RD34 820

RD35

RD67

S29

(–26V)

(0.4V)
AN1

AUD-SET

1K

RD36

1K

1K

(0V)
AN2

0V

KEY1

RD37

RD66

S28

(–28V)

8.2K

KEY2

1K

RD38

S27
(0V)

(4V)
AN3

–29(VP)

52

51535455565758596061626364656667686970717273747576

S24

VP

S22

S21

(–23V)

(–21V)
(–30V)
(–26V)

(4.0V)

(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)

(–29V)

(4V)

(4V)

INT1

INT2

JOG UP

JOG DOWN

1K

RD43

RD44

S20

(–26V)

(–28V)

S18
S17
S16

VDD3

S15
S14
S13
S12
S11
S10

S9
S8
S7
S6
S5
S4
S3

S2

(–29V)

INT3

S0

(3.5V)

REMOCON

RD45

1K

1K

50

(–30V)

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

(0V)

S25
S26
S27
VDD
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
G11
G12
G12

+B

+B

LD01

2.2µH

RD64

RD65

10K

10K

CD07

0.001

SWD02

JOG

CD08

0.001

S26

S25

S24

S23

(0V)

(–28V)

(0V)

(0V)

(–30V)

50

S19

(0V)

31

S1

(4V)

(4V)

(4V)

(4V)

AN4

AN5

AN6

AN7

KEY4

KEY3

KEY5

KEY6

1K

1K

RD41

RD39

1K

1K

1K

RD42

RD40

S4

S3S2S1

VDD

S43

S42

S41

S40

S39

VDD4

(0V)

(–28V)

(–28V)

(–30V)

(–30V)

(4.1V)

81

(0V)

PG0

.6V)

0.8V)
6V)

10.8V)

(0.6V)
(10.8V)

SYSTEM MICROCOMPUTER

(9.0V)

(0.4V)

(0V)

100

SCK1

(0V)

(0V)

(0V)

(0V)

(0V)

P32

6

5

(0V)

P33

P34

P35

P36

P37

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

9

8

7

DISK 1

DISK 2

DISK 3

1K

RD27

RD26

1K

1K

RD28

RD60

10K

SWD01

VOLUME

JOG

JOG PWB-C4

+B

KEY1

RE01

8.2K

KEY5

RE41

8.2K

SWD39

VIDEO/AUX1

RE42

1K

SWD40

VIDEO/AUX2

RE43

1.2K
SWD41

TAPE

1/2

RE44

1.8K

TUNER/BAND

8G7G6G5G4G

SWD42

11G

12G

9G

10G

RE45

2.2K

NCNCF2

SWD43

CD

F2

DISC 3

DISC 2

DISC 1

QD10

KRC107 M

3

1

3

1

KRC107 M

3

1

KRC107 M

2

2
QD11

2

RD72

QD12

RD70

DISC 3

820

RD71

DISC 2

820

DISC 1

820

KEY2

RE11

8.2K

RE21

8.2K

KEY3

RE31

8.2K

KEY4

KEY6

RE51

8.2K

SWD48
POWER

RE52

RE53

1K

1.2K

SWD49

KARAOKE

+B

6 5 4 3 2 1

WHD01

FWD01

6 1

LEDD24

LEDD28

LMKD515B

LEDD23

LEDD27

LEDD25 LEDD26

LEDD23~LEDD28

DISC1

DISC3

DISC2

SWD53

DISC
SKIP

RE56

3.9K

RE57

5.6K

SWD54

OPEN/CLOSE

DISPLAY PWB-C1

7

8 9 10 11 12

SWITCH PWB-C2

SWD52

DISC3

RE55

2.2K

SWD51

DISC2

RE54

1.8K

SWD50

DISC1

Figure 33 SCHEMATIC DIAGRAM (12/18)

– 33 –

CD-K477W

C

7

C

G

8
0

1

C

0

V

X

S

0

0

A

CFWP01

TO MAIN PWB

B

P27 12-E

C

D

E

CFWP02

TO MAIN PWB

F

P27 12-C

QV13

KTC3199 GR

RV27

–37V

1

5

3

3

37V

Fusible

Fusible

–37V

2.58V

Fusible

Fusible

–25V

10K

CV25

0.022

CV26

0.022

CY17

0.022

20

CX25

0.022

CX26

0.022

0V

9

8

0V

7

0V

6

0V

RV29

0.2(1W)

RV69

0.2(1W)

RV70

0.2(1W)

RV30

0.2(1W)

RV28

10K

KTC3199 GR

KTC3199 GR

RY18

10K

RY16

0.2(1W)
RY26

0.2(1W)

RX27

10K

RX29

0.2(1W)

RX69

0.2(1W)

RX70

0.2(1W)

RX30

0.2(1W)

RX28

10K

KTC3199 GR

CV13

CV11

2.2/50

FWP01

1

1

16

16

FWP02

1

1

1111

OUT3(S.W)

RELAY2

OUT1(Lch)

RELAY1

GND(A)

FAN CONT

OUT2(Rch)
SP LEVEL

GND(M)
H/P SW

+12V(M)

FAN SW

PROT

POSISTOR

AMP

OUT4(Cch)

GND(M)

OUT5(Sch)

+12V(M)

GND(A)

FAN SW

RELAY3

PROT

POSISTOR

AMP

CFWV11

1

S.W

2
3

FR

4

5
6

7

8

9

10

+B

11

12

13

NC

14
15
16

CFWX11

1
2

3

+B

4

5

6

REAR

7

8

NC

9
10
11

CV15
470P

CV16
470P

CV12

2.2/50

CY11

2.2/50

CY13

470P

+B

CX11

2.2/50

CX15

470P

CX16
470P

CX12

2.2/50

2.2/50

CV14

2.2/50

CY12

2.2/50

CX13

2.2/50

CX14

2.2/50

RV13

56K

56K

RV14

RX13 56K

RX14 56K

RV18

RY11
56K

RV17

1K

RY12

RX15

RX16

1K

1K

CV17

47P

RV19

1K

CY14

47P

RY14

56K

1K

CX17

47P

RX21

56K

RX19

CV21

3P

RV21

KTC3199 GR

390

CV19

100/50
RV20
390

CV20

100/50

CV22

3P

CV18

47P

CY15

3P

RY15

390
CY16
100/50

CX19
15P

KTC3199 GR

330

CX21
100/50

RX20

390
CX22
100/50

CX20

15P

CX18
47P

0V

0V

56K

RV22 56K

0V

0V

0V

0V

QX18

RX22 56K

0V

0V

ICV01-B

16

STK40727

15

POWER AMP

0V

QV16

RV36

22K

0.6V

RV34

0V

RV37

47K

DV21

RV38

1SS133

10K

CV27

1000/6.3

RV33

10K

0V

1

2

13

ICV01-A
POWER AMP

12

18

ICV01 -C

0V

POWER AMP

17

0V

ICX01-A

14

STK40704
POWER AMP.

13

RX23

1K

0V

RX36

22K

0.6V

RX34

0V

RX37

15K

47K

RX38

DX21

10K

1SS133

CX27

1000/6.3

RX55

RX24

0V

10K

1K

15

–B

11

ICX01
POWER AMP

10

RV35

2.2K

–36V

15K

RV63
120K

–36V

14

6

0V

RX35

2.2K

–24V

RX33 120K

–24V

12

4

0V

11

QV17

KTA1268 GR

RV71

820

7

0V

QX17

RX71

820

5

0V

36.5V

RV25

100

(1/2W)

CV23
47/50
CV24
47/50

RV26

100

(1/2W)

–36.5V

–37V

10

19

4

9

2.5V

RX25
100
(1/4W)

CX23

KTA1268 GR

47/50
CX24
47/50

RX26
100
(1/4W)

–24.5V

–25V

8

2

0V

4V

0V

RV31
1K

RV32

0V

4V

0V

QV14

QY11

0V

4V

0V

RY17

QX13

KTC3199 GR

0V

4V

0V

RX31

RX32

0V

4V

0V

QX14

DV13
1SS133

QV18

KTC3199

–VCC

0V

2

3 4 5

GND

–VCC

KTC3199 GR

0V

GND

0V

GND

QX15

4V

0V

6 7 1

+VCC

4V

0V

CV29
3300/5

+VCC

4V

0V

CX29
3300/50

QV1
KT

4V

CNP

CX2
47/5

4

CN

QX
KT

DV15

1SS133

1K

CV30

3300/50

DV14
1SS133

DY11

1SS133

1K

+B

DX13

1SS133

1K

1K

DX14
1SS133

DX15

1SS133

CX30

3300/50

G

+B

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

23456

Figure 34 SCHEMATIC DIAGRAM (13/18)

– 34 –

2 3

1

4

5

6 7

CNP

GND

GND

GND

–VCC

–VCC

+VCC

+VCC

CN

30

V15
S133

/50

–VCC

2

–VCC

0V

3 4 5

GND

GND

QV18

KTC3199 GR

4V

0V

0V

CV29
3300/50

6 7 1

GND

+VCC

+VCC

QV19
KTC3199 GR

4V

0V

CV28

47/50

CNPV12

CNS903

RV40

56K

TO POWER PWB
P38 6-A

RV41

56K

RV42

56K

RY19

56K

CD-K477W

SPEAKER AMP.2 PWB-F2

TMV01

RV52

330

8.8V

0V

CV47
47/25

9.3V

QV20
KTA1270

SPEAKER
TERMINALS

+

–

+

–

+

–

2
1

CNPV11

WTV11

HP-L CH

5

GND(A)

4

HP-R CH

3

GND(M)

2
1

H/P SW

SUB
WOOFER

M901
FAN MOTOR

2

M

1

CN901

FRONT
SPEAKER
L-CH

FRONT
SPEAKER
R-CH

FW91
FROM
HEADPHONE PWB
P32 1-B

8OHMS

RLYV11

RELAY

1SS133

RLYY11

RELAY

+B

DY12

1SS133

+B

RELAY1

+B

DV17

RELAY2

FAN SW

FM SIGNAL

DV23 1SS133

RY23 22K

QV22
KTC3199 GR

0V

0V

RV62

3.3K

0.6V

RV61

47K

QY12
KTC3199 GR

0V

0V

RY21

0.6V

3.3K

RY22
47K

SP LEVEL
FAN CONT

H/P SW

CV35

0.1

CV36

DV24 1SS133

0.1

CY21

0.1

RV54 22K

RV53 22K

DV19

1SS133

RV60 27K

ZDV11
MTZJ5.1B

CV37

0.1

CV38

0.1

CY20

0.1

+B

DV25

1SS133

CV48

10/50

RV59 100K

DV22 1SS133

RV58

RV55

47

CV49

10K

RV45

4.7(1/2W)

RV16

4.7(1/2W)

RY24

4.7(1/2W)

RV57

4.7K

0V

22K

RV72

100/50

DV20

1SS133

ZDV12

MTZJ6.2B

RV56

3.9K

8.8V

QV21

0V

KTC3199 GR

RV51

330

30
/50

15
133

QX15

KTC3199 GR

4V

0V

0V

4V

0V

CX29
3300/50

QX16
KTC3199 GR

0V

CX28
47/50

+B

RX40

56K

RX41

56K

RX42

56K

RX43

4.7

(1/2W)

RX44

4.7

(1/2W)

CX31

0.1
(ML)

CX33

0.047
(ML)

CX34

0.1
(ML)

CX32

0.1
(ML)

TMX11

RLYX11
RELAY

.....

DX16

1SS133

+B

RX53

DX17

22K

1SS133

22K

RX54

RX52
27K

QX20

KTC3199 GR

0V

0V

0.6V

RX51

3.3K

RX50

47K

SPEAKER
TERMINALS

+

–

+

–

+

–

CENTER
SPEAKER

REAR
SPEAKER
L-CH

REAR
SPEAKER
R-CH

8OHMS

16OHMS

1

–VCC

2 3

–VCC

4

GND

GND

5

GND

6 7

+VCC

+VCC

7

CNPX12

CNS904

TO POWER PWB
P38 5-A

SPEAKER AMP.1 PWB-F1

8 9 10 11 12

Figure 35 SCHEMATIC DIAGRAM (14/18)

– 35 –

CD-K477W

A

B

C

D

SW1
SW2

E

F

G

MW

GND

FM

75ohms

SO301

ANTENNA

TERMINAL

FM SIGNAL MW/SW1/SW2 SIGNAL

R310

C338

0.001

D301
1SS133

D302
1SS133

BFT01

FM BAND PASS

FILTER

RT01
100K

D303
1SS133

D304
1SS133

C301

0.001

C303

0.022

C304

0.022

C305

0.047

CT01
18P(CH)

SW2
TRACKING

SW1
TRACKING

R317
10K

R320
10K

C314

0.022

D316
1SS135

SW1
TRACKING

SW1 BAND
COVERAGE

MW BAND
COVERAGE

CT02

0.01

CT04

0.001

VDT01

KDV147B

RT02

CT06 0.022

22K

D305
1SS135

D306
1SS135

D307 1SS135

D308
1SS135

R318

1.5K
L311

560µH

fH

fL

SW1 OSC

fL
fH

RF

CT05

6.8P
(UJ)

33K

CT08 0.0047

CT07 0.001

SW2 ANT

fL
fH

fL

SW1 ANT

fH

MW TRACKING

MW ANT

D312

1SS133

R321

5.6K
C315

0.1

SW2 OSC

T307

MW OSC T306

T304

T303

T302

T308

C316

0.1

D315

TC304

TC305

R323
68K

C306
10P (UJ)

C308 (UJ)

8.2P

1SS135

ICT01A TA7358AP

FM FRONTEND

MIX

4321321

6

5

CT03

4.7P

FMRF

1DT01

SS133

LT01

CT09

RT03
22

0.0047

FMIF
TT01

CT10

0.022

VD301-1
KV1236Z23F

C330

8.2P
(UJ)

C318

0.022

C319

0.022

0V

0V

2SC2878 B

0V

0V

VD301-2
KV1236Z23F

C334
18P
(UJ)

CT11
15P
(CH)

Q309
2SC2878 B

0V
0V

TC302

0V

0V

TC303

R316
22K

C331

0.047

R322

5.6K
R328

0V

Q307

0V

Q306
2SC2878 B

B.A

7

LT02

FM BAND
COVERAGE

3.9P(UJ)

RT04
47

RT05
47K

VD302-B

KV1236Z23F

0V

0V

Q308
2SC2878 B

R319
100K

10K

VD302-A
KV1236Z23F

R329
100K

R327

5.6K

C335

18P (CH)

OSC

RT06
10

FM
OSC

CT13

QT01
2SC535 C
AMP

R314

3.3K

R330
1K

C336
470P

CT12
33P

RT07
680

R312
33K

D309
1SS135

D311
1SS135

C320

0.0018

R324
100K

VCC

D310
1SS133

C311

0.022

R302
82

D317

1SS135

98

VDT02

KDV147B

CT14
22P(CH)

C307

R313

R315

D313
1SS133

D314
1SS133

C321

0.0039

CT15

0.022

CT16
10/16

RT09
820

0.047
C309

330P

22K
C310

0.001

22K

R325
56K

R326
1K

RT08
10K

R311
100K

C349

C390
100P

1/50

R340

220

2

3

SW2+B

Q364

1

RT10

4.7K

C312

0.022

SW1+B

R343
47K

R339

470

KRA107 M

2

3

C313

0.022

R342
47K

Q363

1

MW+B

R338

470

0V

2

KRA107 M

3

R341
47K

Q362

KRA107 M

1

FM MUTE
LEVEL

L356
1mH

CF302

10.7MHz
FM1F

12.18V
+B

3

C342

0.022

VR351
10K(B)

+B

+B

1

321

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

23456

Figure 36 SCHEMATIC DIAGRAM (15/18)

– 36 –

3

342
022

351

K(B)

02

1F

2

+B

+B

CD-K477W

TUNER PWB-D

Q365
KRC107 M

2

1

TE

Hz

3

C351

C381
12P (CH)

C382
15P (CH)

L353
1mH

0.022

R382
150

R358

8.2K

R351

5.6K

X352

C397

0.022

C343
15P (CH)

3.48V

AM OSC OUT

FM IF IN

2.06V

C350

0.022

C352

10/16

2.52V

4.5MHz

2.52V

C362

3.3/50

5.01V

2.2V

AM OSC IN

AM MIX OUT

5.01V

R381
10K

0V

VSS

X OUT

X IN

NC

C361

0.022

C360

0.022

C363 0.022

C364 10/16

L358

560mH

L357

4.7mH

FM AFC

REG

2.07V
T351

AMIF

C392

C394

0.001

47/16

R380

1.5K

C393

2.2/50

2.1V

IC302
LC72131

AOUT

PLL CONTROLLER

CEDICLDOFMMWSW1

4321

0V

0V

0V

2.2V

0.9V

5

4.82V

AM RF IN

R352
1K

1

0.9V

PD

AIN

6

5.1V

0.46V

VSM

AM IF IN

4321

3

2

R379

2.2K

5.11V

VDD

7

R397
1K

0.16V

2.06V

C387

C380

2.48V

R373 1K
R374 1K
R371 1K
R372 1K

TP 302

C365 0.022

C366 0.001

R350

2.7K
C367

1/50

0V

2.52V

IC303
LA1832

FM/AM OUT

FM IF DET./FM MPX./AM IF

AM LOW CUT

GND

SD

STEREO

FM DET

5

C353

CF352

AM IF

0.022
L351

100µH

1/50

C385

0.01

0V

AM IN

FM IN

12.1V

R398 1K

6

0V

0.022

0V

NC

98

3.85V

7

5.09V

5.09V

C354

0.022

R393 1K

R396
1K

0V

2.38V

121314151617202122 1819

IF IN

SW2

MO/ST

11

10

3.95V

8

2.84V
R353

FMIF

CF351

C386

330P

1K

STEREO

5.1V

R360

4.7K

R376

9

270

FMIF

X351

456kHz

2.29V

VCC

5.01V

C399

R395
47K

R390
82K

R357

2.05V

MPX VCO

10

0.022

C398

R377
47K

470K

MPX IN

IF OUT

3.68V
C357

2.2/50

100/10

C374

R356

C368

PHASE

11

3.85V

C355

0.022

1K

1/50

1.19V

R-CH

C358
1/50

22P

1.18V

OUT

C356

0.001

R359

1.8K

C373

C371
1/50

C372
1/50

OUT

L-CH

PHASE

12

+B

0.022
R364

R361

5.6K

R362

5.6K

131415161718192021222324

3.95V

MO/ST

(FM/AM)

3.85V

R355

3.3K

C370

1/50

Q360
KTA1266 GR

11.6V 12.18V

D352 1SS133

C383

0.0022

CNP303

1.5K

0V

0V

0V

0V

L352
100µH

+B

R385

5.6K

R384

2

GND(D)

R363

1.5K

MUTING
Q353
KTC3199 GR

0.65V
10K

R365

R367
1K

0.65V

Q354
KTC3199 GR
MUTING

R354

4.7K

ZD351
MTZJ4.7B

C395

0.022

11.37V

C391
47/16

5.6K
1

ZD352
MTZJ3.9B

3

Q361

KRC107 M

D351
1SS133

CLDOCEDI+12V(A)

1

R368
33K

R391
390

R392
390

R383

5.6K

432

C375

3.3/50

R366
10K

C396
100/10

R387
22K

5

6

GND(A)

7

D353

1SS133

TUNER MUTE

L-CH

R-CH

SD

98

11

10

FROM MAIN PWB

P24 1-E

7

8 9 10 11 12

Figure 37 SCHEMATIC DIAGRAM (16/18)

– 37 –

CNSF13

CD-K477W

9

N

TO SPEAKER

AMP.1 PWB

P35 7-H

CNPX12

A

POWER PWB-D

CNS904

BI904

1 2 3 4

2 3 4

1

GND

–VCC

–VCC

GND

5

5

GND

6

7

6

+VCC

7

+VCC

TO SPEAKER

AMO.2 PWB

P35 7-D

CNPV12

1 2 3 4

2 3 4

1

–VCC

–VCC

GND

GND

5

5

GND

6

6

+VCC

7

7

+VCC

C

BI

B

–12.5V

KRC107 M
3

GND

R907

C907 220/25

C919

4700/25

Q914

560

ZD903

MTZJ130C

Q913

R901

2SB1375

1K

2

13.4V

R908

68(3W)

–24.2V

R917

4.7K
R918
100

–12.5V

2

ZD901
MTZJ130A

Q904

KRA107 M

1

13.4V

3

33K

F999

T500mA L 250V

1

–B

C901

Q902

2SD2012

R903
47

2SD2012

12.0V

0.022

+17.7V

Q906

R910

150

C

+B

+4.6V(D)

D

+B+B

GND(D)

+B

+B

+12V(M)

+4.8V

C906

0.022

+12V(A)

Q903

2SD468C

C905
47/25

R905

22

R906

100

1SS133

ZD902

MTZJ5.6A

D901

R904

1.5K
C904

47/25

C909

0.022

E

2

–1.0V

1

1.3V

3

0V

Q907

KRA102 M

+B

F

–B

+B+B+B

+7.3V(CD)

C911

0.022

CD GND(D)

GND(M)

Q909

2SD2012

+7.6V +17.7V

R912

47

D905

1SS133

Q908

KTC3199 GR

7.9V

C910
47/25

R911

560

8.3V

ZD904
MTZJ8.2C

C902

47/25

Q901

KTC3199 GR

C903

47/25

+17.7V

Q905

KTC3199 GR

12.8V

13.4V

C908

47/25

D904

1N4004S

–12.5V

–11.9V

C920
47/25

R902

R909

1K

–12V(A)

GND(A)

+12V(A)

+12V(M)

GND(M)

G

BI901

CNS901

2

1

2

1

H

+4.6V(D)
6

5

4

3

3

6

5

4

CNPP01

TO MAIN PWB

P27 12-F

GND(D)

+7.3V(CD)
8

7

8

7

POWER

CD GND(D1)

GND(D3)

11

10

9

11

10

9

• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.

1

23456

Figure 38 SCHEMATIC DIAGRAM (17/18)

– 38 –

GND

AKER

PWB

7-D

12

6

5

6

5

+VCC

7

7

+VCC

CNS903

BI903

+26.0V

D990

KBU403

+

~

~

–26.0V

CD-K477W

C951

0.047

–

(ML)

C952

0.047
(ML)

F993

T3.15A L 250V

F994

T3.15A L 250V

T991

POWER TRNSFORMER

+37.0V

–37.0V

+

D991

KBU603

R954

220

~

–

~

D992–D995:2A02

+17.7V

–31V

R953
220

D992

D993

C954

0.047
(ML)

C956

0.047
(ML)

R955 12K

MTZJ6.8C

D995

D994

C964
47/50

C965
100/35

ZD952

100

R956

–31.8V

Q951

KTA1266

F995

T6.3A L 250V

F996

T6.3A L 250V

C957

0.047
(ML)

C958

0.047

(ML)

220/50

C963

47/50

2.2K

R957

–34.1V

R951

R952

C961

ZD951

1N4004S

1

1

D951

MTZJ330C

C962

47/63

D954

T2.5A L 250V

1N4004S

C960

D952

1N4004S

D953

1N4004S

F997

220/50

C959
220/50

T2.5A L 250V

T2.5A L 250V

VOLTAGE SELECTOR

T.F.

F991

F992

220V
127V
110V

SW991

F990

T5A L 250V

230-240V

(285)

(285)

AC 110/127/220/230-240V

AC POWER

SUPPLY CORD

50/60Hz

(242)

–VP

VF1

VF2

2 3 1

FW901

WTP01

TO MAIN PWB

P26 1-D

7

8 9 10 11 12

Figure 39 SCHEMATIC DIAGRAM (18/18)

– 39 –

CD-K477W

O

P

A

COLOR TABLE

B

BR

BROWN

RD(R)

RED

OR

ORANGE

YL

YELLOW

GR

GREEN

BL

BLUE

VL

VIOLET

GY

GRAY

WH(W)

WHITE
BK
PK

JR12

INPUT

VIDEO/AUX2

JR11

INPUT

VIDEO/AUX1

BLACK

PINK

L-CH

R-CH

L-CH

R-CH

C

D

E

F

G

SWF02

SPAN

SELECTOR

10/100

FM/MW

9/50

MAIN PWB-A

RR82

B C E

CR61

CR58

CR59

CR60

RR77

RR76

RR78

4

1

CR64

ICR15

58

CR63

CR57

CR55

RR74

CR56

SWF02

RR86

JR12

JR11

DR11

CR10

ICR11

DIGITAL

OUTPUT

3
2
1

CNPR11

1

CP83

DR12

RP77

CP78

23456

ZDP01

CP82

CP84

RR71

RU13

RR16 RR15

RR11

LR01

CR01

ZDR01

3

CP79

CP77

7

ICP70

RR73

RU15

CU61

CU55 CU42

RR12

CR02

RR01

1 2

QR21

RR80

CR62

CP29

RR79

RR75

RP85

RP74

CP70

CP72

RP76

8

ICP71

1

RP78

CP76

9101112131415

8

RR72

RU16

CU54

CU53

RU12

CU50

RU01

CU39

CR13

CR03

RP63

5

4

CU43

CU31

CR12

CP80

CP75

RP81

RU14

CU51

RR14

CP73

CP74

RP80

CU29

CP49

161718192021222324252627282930

CU27

RR17

CR14

RP35

CP40

CP50

CP71

CP81

RP79

CP48

RP75

CU52

RR18

5

CR11

4

RP64

RP52

CU49

ICP12

RP65

RP84

CU33

CU25

CP42

RP33

RP10

RU09

1

CP39

RP82

CU23

RR13

RP39

8

RU11

33

TO SPEAKER AMP.1 PWB

P47 11-B

CFWX11

CP08

14

CC91

45

CU57

CU36

CU06

50

RP22

CP07

CC90

CC75

CU10

B C E

QU01

RU96

RP20

CC89

RP26

RP21

CC82

CC77

CC76

RC19
RC13

11

RP25

CC86

RU26

FWP02

CP27

CC88

CC87

RC14

RU25

RU22

CC81

RC20

CP24

CP23

CP09

RP32

CC51

CC53

WTP01

CP10

3
2
1

CC85

CC84

CC83

WTP02

3

3

QR13

CC78

21

2

1

QP13

RP45

CP37

RP43

RP41

CP35

CP85

RP68

CP52

RP67

CP51

3
2
1

QR11

RP09

CC55

CC59

RC18

RC15

CC63

RC61

DC02

DC01

RP83

CC70

CC71

RC16

CU62

CU41

RU10

17

16

15

20

25

32

30

ICU01

35

40

45

50

49

48

CU21

CU15

CU17

RU05

CU09

E
C
B

RP47

RC62

10

55

CU45

CU56

CU40

CU11

RU03

RR20

CC64

CC65

RC59
CC68

5

60

RP12
RP11

QR12

CC57

CC56

RC17

CC60

CU07

3
2
1

RC51

RC52

CC69

CC67

RU02

CU34

CU35
CU05

CP53

CC72

CU32

CC74

1

64

CU63

E
C
B

QP16

RP70

CC58

CC73

CU30

CU64

CU01

CC62

CU04

RP69

RC53

CU24

CU16

RU04

CU03

CP15

CC54

CP16

CC52

15

CU28

CU18

CU12

CU08

CP17

CR16

20

XLC01

RC60

RU06

RU95

CP18

CP19

CC95

1

5

10

ICC01

25

RC56

CU26

CU46

DU02

DU01

CP20

RP16

RP15

CC93

CC94

35

30

RC55

CU22

CU58

B C E

QU02

RP18

ICP11

CP28

58

RP17

RP19

CC92

60

55

40

CC98
CC97

CC96

RC54

CU02

RP31

1

CP26

RP30

RP29

1

CC80

CC01

RU21

1

FROM TUNER PWB

P46 1-B

CNP303

123456789

BKBKBKBKBKBKBKBKBK

RD

QP12

RP28

E
C
B

RP27

E

CP25

C
B

QP11

RR21

CR17

CC06

RC06

RC08

CC08

RC57

CC09

CC47

ICC02

CC07

CC03

RC07

CC79

BIF11

CC02

RU23

CNPU02

RU24

RC03

1
2
3
4
5
6
7
8
9

6

BIF13

CC04

RC01

12

CNSF13

CC05

RC05

1011

RC04

RC02

3

BK

11

CC48

RC58

4

RG01

RU93

CNPP01

5

678

T

1

RU94

RDBKBKBKBK

BK

H

1

CNS99

FROM CD SERVO PWB

P44 4-H

23456

CNSU02

FROM KARAOKE PWB

P45 7-A

FWD02

FROM DISPLAY

PWB P42 1-F

FW901

FROM

POWER PWB

P48 1-E

123456

TO CD SERVO PWB

CNP11

P44 4-G

CNSF11

CNS901

FROM POWER

P48 1-F

Figure 40 WIRING SIDE OF P.W.BOARD (1/9)

– 40 –

RC06

RC03

R PWB

B

03

CNSF13

789

1011

BKBKBKBKBK

BIF13

CC04

C57

CC05

RC05

RC01

12

CNSF11

11

RG01

RU93

CC48

RC58

RC04

RC02

CNPP01
5

678

3

4

CNS901

FROM POWER PWB

P48 1-F

TO SPEAKER AMP.2 PWB

P47 8-A

CFWV11

1

QG04

E
C
B

RU94

91011

CG08

RK72

CR15

1 2 3

QP17

FWP01

RR19

CD-K477W

CK51

B
C
E

RK20

CK17

CG06

B
C
E

E
C
B

RK03

RK12

RK17

CH22

RF36

QL15

E
C
B

RH25

DH13

RF37

QK28

RK66

RK04

QK03

B
C
E

765432

QK07

CK07

QK08

RK09

RK07

CNPK01

1

CK02

RH31

CH23

CH20

RH27

DH16

RG20

RG17

RF35

RF34

RF32

RF29

QL16

QL19

3

3

2

2

1

1

RL18

RL17

RK68

CK05

RK01

RH32

RG21

RF31

CK62

B
C
E

23

RH26

DH20

RF33

RF30

RL19

B
C
E

LK04

CH24

3
2
1

QL14

RK06

QK04

RK18

E C B

RH34

DH19

QL18

RL15

RK89

CK08

CH19

RL16

CK50

B
C
E

RK11

DH14

3
2
1

CK01

RF22

QL13

RL14

RL13

1

QK10

RG38

RF20

QK06

CK06

CNPK02

RK08

3
2
1

RF23

RF21

RF19

RF09

RF07

QL17

3
2
1

3
2
1

RF10

RF08

RF06

B
C
E

RK90

RK10

QL12

1
3
5
7
9

RL12

QK11

10

RL11

B
C
E

RK14

2

4
6
8

QL11

RK15

CNSK02

FROM

TAPE MECHANISM

TAPE2 HEAD

P45 11-H

CNSK01

FROM

TAPE MECHANISM

TAPE1 HEAD

P45 9-H

CNPF01

CNSD1

TO DISPLAY PWB

P42 2-F

CK52

RK62

RK64

RK65

QK24

RK36

CK30

CK34

CK40

1011

CK23

RK27

RH13

RH24

RF51

51

55

10

5

1

RG56

WTL11

89

RL24

RK28

CK27

RH35

RF52

7

RK38

1716151413

CK41

RK45

CH15

45

15

RF01

RK63

CK32

DH12

RF50

50

CK24

RK32

CH26

RF49

40

20

RF02

RG22

RK60
RK61

QK25

CK26

RK29

CK28

RK25

RH22

E
C
B

RK30

201918

CH25

RH21

CH18

RF47

35

25

RG04

B C E

RK26

CK22

RK34

RK23

RH36

RG25

RF46

RF11

16

7

35

9

1

1

35

2

6

4

RK56

RK74

RK73

RP73

CP57

RG37

DG05

11

2

10864

CFWP02

7

131415

11

9

16

8

12

10

CFWP01

QK15

1 2 3

QK40

CK55

RG05

DG06

RG24

RG31

CG02

DG04

CG03

RG34

B

QG02

C

RG36

3

E

2

RG39

RG29

1

QG01

CG01

DG02

RG57

CG04

RG58
RG59

14

BKBKBKBKBKBKBKBKBKBKBKBKBK

14 13 12 11 10

FROM CD SERVO PWB

RK54

RG23

RG35

RG32

RG30

CK60

RK69

E
C
B

E

QK18

C
B

RK57

RK48

RK58

RK47

CK44

CK10

1 2 3

CK37

CK35

RK41

B
C

QK21

RK53

E

1

3

2

2

3

1

QK29

RK55

QK30

RK75

CH12

RF67

RG11

RF68
RF69

RF71

RF72

RF73
RF76

RF77

RF79

RF80

RF81
RF82

RF87

LG01

RF88

ZDF01

RG08

RG33

B

RG07

C
E

QG03

DG03

BIF12

987654321

CNP12

P44 5-G

QK22

RK43

RK81

RH11

RF70

RF78

CG56

RG06

3 2 1
3 2 1

QK19

QK17

B
C
E

RH12

RF75

RG10

1

RD

CK36
CK38

RK49

CK43

LK01

CH28

8

ICH11

1

RF63

81

RF94

CG07

DL13

CNSF12

QK27

CK46

RK39

CK29

RH17

CG61

80

CG57

3

3

3

2

2

2

1

1

1

QK26

QK14

RK42

LK02

CK42

QK16

RK46

RK40

CK45

RK50

CK47

ICK01

12

RK52

CK39

CK33

CK31

QK13

RK31

1

RK33

2
3

RK35

RK37

DH11

RH14

RH16

RH15

CH30

CH13

5

CH10

CH29

4

RF54

RF61

RF62

60

65

70

75

ICF01

85

90

95

100

RF96

RF95

RF97

RF98

RG19

13

12

1011

RL20

DL14

FWM1

FROM TAPE MECHANISM PWB

P45 9-E

RK24

CK21

CH17

QG05

RG55

RF12

RG15

CK09

CK25

1
2
3

31

30

RF17

RG26

RF44

RG16

123456

QK09

RK13

23456789
CK13

CK19

DH15

CH16

RF13

RF03

RK22

24232221

1

XF01

E
C
B

CK20

CK14

CK15

RH37

RF42

DL12

RH20

RF99

RF14

RF04

CK11

RK21

CH21

RF40

RF27
RF26
RF25

CK18

CK16

CK12

CH27

DH17

RF41

CL13

CL12

RK67

LK03

RK05

QK05

RK02

RK19

RH39

RH30

RH29

DH18

RF39

RF38

RF28

RF24

CG05

RF05

DL11

7

8 9 10 11 12

Figure 41 WIRING SIDE OF P.W.BOARD (2/9)

– 41 –

CD-K477W

RE56

RE57

SWD20

SWD19

QD03

QD02

QD01

CD29

CD28

SWD16

QD04

SWD01

VOLUME JOG

CD30

FWD02

CV92

RXD01

REMOTE

CONTROL

SENSOR

RE02

RD61

RD60

RE21

RE18

RD13

DD02

CD21

RD53

DD01

RD51

RD33

RD32

RD58

LV91

RV91

RV92

RE17

RE12

RD39

RE27

CD20

CD19

RD59

CD18

RE24

RD48

RD15

RD16

RD17

RD19

RD31

RE19

RE14 RE13

RE23

RE15

RD01

RD02

RD10

RD09

RD08

RD07

RD06

RD05

RD04

RD03

CD06
CD05

RD57

CD11

CD09

CD10

RD50

RE26

RE16

CV91

CNSD01

RD11

SWD27

RD

QD05

QD06

JV91

FWV91

LELEDD09

LEDD07

LEDD06

LEDD11

LEDD13

LEDD12

LEDD05

LEDD10

FLD01

ICD01

RE22

RE95

RE94

LEDD02

RD49

RE25

RE25

STOP

STOP

1

5

SWD14

SWD15

SWD12

F-PLAY

SWD17

1

3

1

2

4

68

10

9

7

5

3

DATA1

COM

SCK1

STB

RESET

F-PLAY

LEDD01

SWD13

LEDD03

FF

REC/PAUSE

4SP-1

SWD24

SWD25

4SP-2

PHANTOM

SWD04

RD52

LD01

X-BASS

SWD03

DISC

OPEN/
CLOSE

SKIP

SWD54

SWD53

1
3
2

1

25436

789

10111213141516

171819 202122

232425 2

3 2 1

3 2 1
3 2 1

3 2 1

3 2 1

3 2 1

1

5

10

5

55

60

65

70

75

80

81

85

90

95

100

SWD02
JOG

TUNING
UP/CUE

NORMAL
EDIT

SUB WOOFER
VOLUME DOWN

HIGHT EDIT

SUB WOOFER
VOLUME UP

PRE EQ

1

3

1

5

JV91

HEADPHONES

JOG PWB

HEADPHONES PWB-C3

CNPF01

FROM MAIN PWB

P41 12-G

WTP01

TO MAIN PWB

P40 5-H

WTV11

TO SPEAKER

AMP.2 PWB

P47 7-A

A

B

C

D

E

F

G

H

1

23456

Figure 42WIRING SIDE OF P.W.BOARD (3/9)

– 42 –

CD-K477W

DISPLAY PWB-C1

FLD01

171819 202122

16

RE94

LEDD01

81

F-PLAY

232425 26272829303132

60

65

70

75

80

85

90

95

100

RD13

LEDD10

SWD27

PHANTOM

SWD02
JOG

55

ICD01

5

1

LEDD08LEDD09

50

10

RD14

JOG PWB-C4

SWD43

SWD42
TUNER
BAND

SWD41

SWD39

SWD40

VIDEO/AUX2

RD36

RD66

RD35

SWD36

TIMER

RE37
RE36

SWD35

MEMORY

CD

35

34

33

3738

36

45

40

35

30

25

20

15

LEDD15

RD12

SWD28

NORMAL

PAUSE

LEDD04

LEDD20

R-PLAY

LEDD16

RE28

SWD33

R-PLAY

RD34

XD01

LEDD14

CD07

RE34

424344 454647

394041

CD01

BYPASS

RE29

CD

PAUSE

CD08

SWD31

RE33

RE32

SWD30

TUNING DOWN/
REWIND

CD02

+ + +

LEDD19 LEDD18

LEDD17

SWD29

REVERSE
MODE
SWD32

RD21

RD22

REW

LEDD21

3

3

2

1

QD07

2
1

RD55

RD54

QD08

RD27

RD26

SWD37

SLEEP

RE35

RE39

SWD38

CLEAR

ASPM

RD30

RD28

RD67
RD62

RE38

TAPE1/2

VIDEO/AUX1

SWD34
CLOCK

RE44

RD45

RD41

RE45

RE43

RE42

QD11

1

2
3

RD44

RD43

RD42

RE51

RE41

RE31

RD40

RD64

RD71

RD70

RE01

RE11

RD65

RD72

QD12

1
2
3

RD38

RD37

QD10

1
2
3

SWD48
ON/STAND-BY

WHD01

1
2
3
4
5

6

RE53
RE52

3

RE56

SWD49

KARAOKE

LEDD28

RE55

LEDD27

SWD52

DISC3

LEDD25

LEDHLD

RE54

LEDD23

LEDD26

SWD51 SWD50
D1SC2

LEDD24

DISC1

1

FWD01

6

SWITCH PWB-C2

7

8 9 10 11 12

Figure 43 WIRING SIDE OF P.W.BOARD (4/9)

– 43 –

CD-K477W

A

SENSOR PWB-J

SW3

DISC NUMBER

B

21

OPEN/CLOSE

CNS5

C

21

SW2

MECHA UP

D

E

FAN MOTOR

F

COLOR TABLE

BR

RD(R)

OR

G

YL

GR

BL
VL
GY

WH(W)

BK
PK

M3

T/T UP/

DOWN LOADING

MOTOR

SW1

M901

BROWN

RED
ORANGE
YELLOW

GREEN

BLUE

VIOLET

GRAY

WHITE

BLACK

PINK

-

1

GY

OR

WHBRWH

WH

10

987654321

CNS10

CNSV11

RD

2

BR

1

CNPV11

TO SPEAKER

AMP.2 PWB

P47 9-A

SOLENOID

SOLM2

CD MOTOR PWB-K

1
2
3
4
5
6

RD

WH

GY
WH
GY
WH

1
2
3
4
5
6

-

1
2
3
4

CNP3A

5
6

CNS3BCNS3A

+

PICKUP IN

M2
SLED MOTOR

SW4

+

-

+

M1

SPINDLE MOTOR

PICKUP UNIT(306)

BIM5

6

RD

GY

GY

WH

C35

1
2
3
4
5
6

R48

CNS1A

CNP3

20

25

30

35

36

C36

1
2
3
4
5
6
7
8
9

10

1
2
3
4
5

1
2
3
4
5
6
7
8

R37

CNP2

R82

CNP10

WH

BK
PK

YL
BL

8
7
6
5
4
3
2
1

R19

IC3

C8

R12

C7

R11

C6

R13
R16

R20

1819

15

10

5

1

1

8

3

6
5
4

7

2

9

GY

RD
WH
GY
WH
GY
WH

GY
WH

C54

C4
R8

R9

C5

R10

R14

C9

R15
C10

R21

R22

R25
C14

R27

C16

R28

C81

D91

Q93

R83

CNP11

65

C82

IC81

CNSF11

FROM MAIN PWB

P40 5-H

CNS1B

BL

1

PK

2

WH

3

YL

4

BK

5
1

2
3
4
5
6
7
8

CNS2BCNS2A

10

7

Q1

R2

1

C3

2
3

C15

4

C1

5

CNP1

R17

16

R18

C12

R30

R31

Q91

E
C
B

3
2
1

15

17

C11

R23
R24

C13
R26

R29
C17

R33

C18

D3

D2

R87

R81

R86

R80

Q51

321

2

3

4

1

20

BCE

10

25

R34

D4

R64

1

RD

R1

C2

R66

1

5

IC1

12

30

32
C21

C52

BI99

WH

35

33

C20

C19

64

60

R32

Q52

BCE

40

BK

C31

ZD61

R46

55

50

45

R88
R89

R90

C51

3

5398

C85
C32

C34

C33

R45

49
48

C22

R36
R35

L61

C73

R54

11

RD

BK

WH

1

32

CNS99

CNPR11

TO MAIN PWB

P40 2-H

8

6421

D1

C30

C57

C28

C25

R40

C29

R44

16
17

C50

C71

R73

R72

C74

R74

14 13 121110 9 8

FROM MAIN PWB

15

1

CD SERVO PWB-B

R41

C26

C27

R42

R39

R43

C24

10

15

20

25

C72

CNSF12

P41 9-H

C40

C23

R52

R53

R38

R50

C56

1

64

5

60

55

IC2

40

30

35

32

33

R55

C43

D82

7654321

R51

C46

R60

50

45

C83

CNP12

C39

C38

R47

C37

R61

R62
R57

49
48

R93

C53

D81

C47

C48

R63

R59

R58

C44
C49

C45

XL1

C42

C41

H

• The numbers 1 to 12 are waveform numbers shown in page 49.

1

23456

Figure 44 WIRING SIDE OF P.W.BOARD (5/9)

– 44 –

CD-K477W

TO MAIN PWB

CNPU02

P40 4-H

CNSU02

9
8
7
6
5
4
3
2
1

GY
WH
GY
WH
GY
WH
GY
WH
RD

R667
R668

ZD631

Q631

E
C
B

R670

C672
C673

C677

C674

9

1

R669

BI601

R611

R612

R604

C626

R610

C627

C618

R603

C605

R614

C604

C622

C619

C633

C623

C620

C621

C617

C608

C606

36

1

C609

R636

R605

C624

R616

R617

20253035

IC601

51015

C612

R607

R606

19

18

R608

C625

C634

R615

C610

C628

C631

C613

R618

R609

C611

C629

C615

C616

C630

C632

D601

C602

C601

C614

R602

R619

R601

KARAOKE PWB-L

TAPE MECHANISM PWB-H

SWM4

SOLENOID

SOLM1

REC RVS

SWM2
T2
CrO2 SW

VR603
DIGITAL
ECHO

PHM1

1

2

4

3

PLAYBACK HEAD

PK

WH

FWM1

TAPE 1

GY

VR602
MIC2
VOLUME

TO MAIN PWB

P39 10-H

WTL11

131312 11 10

987654321

FWM1

BK

HEAD PWB-G

VR601
MIC1
VOLUME

MIC LEVEL

SWM3
REC FWD

1

RECORD/PLAYBACK/ERASE HEAD

SWM6

CAM

TAPE 2

4

FLEXIBLE PWB

J602
MIC2

J601
MIC1

MIC

MM1

TAPE MOTOR

L
H

FWM2

VRM1

TAPE

1

SWM1
T1
CrO2 SW

SPEED

CNPM2
SWM5
F. A. S

TAPE MECHANISM ASSEMBLY

7

8 9 10 11 12

BK

PK

WH

213

TO MAIN PWB

P39 12-C

CNPK01

CNSK01

BI 102

6

WH

GY

1

YL

BL

PKWHBK

GY

WH

BK
PK
BL
BK
YL
WH

CNSK02

1
2
3
4
5
6
7

Figure 45 WIRING SIDE OF P.W.BOARD (6/9)

– 45 –

TO MAIN PWB

P39 12-B

CNPK02

CD-K477W

R377

A

B

P 40 5-A

CNSF13

FROM MAIN PWB

1 2 3 4 5 6 7 8 9 10 11

C

D

E

F

G

R390

CNP303

R373

C383

R372

R382

C394

R381
C392

C393

C380

C391

R380

R379

Q361

ZD352

R374

R387

R371

D351

C397

C385

L351

3 2 1

D352

C381

222120

C390

13 14 15 17 18 1916

R396

12

R385
R384

C387

C386

C396

C395

R392

R383

C382

IC302

321

R397

QT01

R398

Q363

RT09

321
321

LT02

B C E

RT05

CT16

RT07

CT15

RT03

ICT01

CT11

2 3 4 51 7 8 96

CT03

CT09

CT02

TUNER PWB-E

C301

CT01

1 2 3

BFT01

RT06

CT08

CT12
CT14

CT10

LT01

CT05

CT06
CT07

R391

X352

2345 1789 6

10
11

TT01

DT01

R367

ZD351

R359

E C B

R360

R376

Q362

Q364

CT13

RT02

C375

C370

L352

Q360

VDT02

RT10

RT04
RT08

CT04

RT01

VDT01

R310

R395

L353

C349

Q309

R312

R316

D305

R354

C355

CF352

T351

VR351

R338

R339

R340

C321

D317

R330

C313

R311

VD302-B

BCE

C306

T304

C304

D353

R368

C356

C354

123

VD302-A

R329
C320

R326

R342

C307

C303

R363

R364

C358

R353

C398

C342

LEVEL

FM MUTE

R325

T307

ECB

R343

TC302

D309

D301

C352

C312

R313

C308

T303

D302

R393

R355

CF351

CF302

Q306

D313

D314

D310

ECB

D306

C357

12
1110

C399

C351

2 3 4 51 7 8 96

1 2 3

T308

TC305

D315

Q353

ECB

R361

IC303

C366

R358

ECB

R327

R322

R315

R314

Q308

C309

TC303

D311

C305

C371
C373

C353

R351 R352

C350

L356

C318

R328

T302

D307

R365

ECB

X351

131415

16
171819

L358

222324 21 20

C334

C319

TC304

Q307

C316

C311

D308
C310

D303

C365

C361

C343

C315

C330

Q354

R362

R356

C367

321

VD301-2

R323

C338

R366

C360

C336

T306

D316

R302

R317

R320

R318

D304

C374
C372

C368

R350

R357

C363

C364

L357

C362

Q365

R341

R324

C335

R321

C314

D312

L311

R319

VD301-1

C331

SO301

ANTENNA

H

1

23456

TERMINAL

FM

75Ohms

GND

SW1

SW2

MW

Figure 46 WIRING SIDE OF P.W.BOARD (7/9)

– 46 –

FROM POWER PWB

P48 6-F
CNS903

FROM HEADPHONES

PWB

P42 3-F
FWV91

1 2 3 4 5

WTV11

QV19

B
C
E

7 6 5 4 3 2 1

CV28

RV40

RV41

RV52

RY19

RY23

RLYY11

CY20

CY21

RY24

RV51

RV42

DV17

RV53

CD-K477W

TO MAIN PWB

P41 7-A

CFWP01

TO FAN MOTOR

RY17

CV19

CV20

RV14

DV20

RY26
RY16

RV36

RV62

RV22

RV27

CV13

RV35

CV15

RV13

CY12

RV19

CV22

CV23

QV14

B C E

B C E

QV17

DV22

QY11

RV20

P44 2-G
CNS901

1 2

CV48

CV49

E
C
B

CY16

RY15

CY14

RV17

CV17

CV18
RV18

RV25

RV28

CV26

DV14

DV25

RY11

RV26

RY18

RV57

E
C
B

CNPV11

QV20

QV21

RV72

CY17

CY13

RY12

ICV01

TO MAIN PWB

P40 4-A
CFWP02

CV47

ZDV12

RV56

E

RV55

C
B

DY11

20

19

18

17

16

15

14

13

12

11

10

9
8
7
6
5
4
3
2
1

FROM POWER PWB

7 6 5 4 3 2 1

QX15

E C B
B C E

QX16

RX40

CX28

RX43

RX41

DX16

P48 6-G
CNS904

CNPX12

DX15

CX31

CX33

RX44

RX42

RX53

CX32

RLYX11

113

FWP02

CFWX11

CX29

RX54

CX34

CX30

RX50

QX20

E C B

DX17

RX52

1

2

3

4

5

6

7

8

9

10

11

12

13

RX21

RX23

RX55

RX34

RX38

CX19

DX21

RX69

RX29

RX31

RX33

DX13

RX37

CX27

CX12

RX70

CX14

CX16

RX71

RX51

RX27

B
C
E

RX14

RX24

RX30

RX32

B C E

CX25

CX21

QX18

CX11

CX15

CX22

RX22

CX24

RX36

QX13

CX13

RX13

RX19

CX20

B C E

B C E

RX35

RX25

RX20

QX14

CX17

RX15

RX26

CX26

DX14

CX18

QX17

RX16

CX23

RX28

ICX01

15
14
13
12
11
10

9
8
7
6
5
4
3
2
1

1
3
5
7
9

CY11

CV12

RV21

RV29

CV21

RV33

RV69

DV21

RV34

RV37

ZDV11

CV11

CY15

RV63

CV27

RV70

RV32
RV30
RV31

DV13

B
C
E

RV59

CV14

16

RY21

RV58

RY14

CV16

RV71

CV24

QV13

B C E

CV25

QV16

1
FWP01

QV22

B C E

RV61

RY22

B

QV18

E

C

C

E

B

QY12

CNPV12

CV30

CV29

CV35

RV45

CV37

DV19

RLYV11

DY12

RV38

RV60

2
4
6
8

10

CFWV11

12
14
16

DV15

DV24

RV54

DV23

11
13
15

SPEAKER AMP.2 PWB-F2 SPEAKER AMP.1 PWB-F1

TMV01

+–+–+

SUB

WOOFER

SPEAKER TERMINAALS

7

–

L-CH

FRONT

SPEAKER

R-CH

FRONT

SPEAKER

TMV11

8 9 10 11 12

TMX11

+–+–+

SURROUND

SURROUND

SPEAKER

R-CH

TMX11

SPEAKER TERMINAALS

SPEAKER

L-CH

–

CENTER
SPEAKER

Figure 47 WIRING SIDE OF P.W.BOARD (8/9)

– 47 –

CD-K477W

HAND INSERT

C919

BI901

D992

C906

ZD952

D995

R955

C965

D994

R906

R904

C905

Q951

ZD951

C963

D953

D952

R957
R956

D954

D951

C964

Q903

ZD902

D993

C962

C957

Q907

C956

C954

R953

R954

R951

R952

Q908

D905

R912

ZD904

C910

Q909

C911

Q904

R902

R907

R917

R918

C901

C902

Q913

C907

Q901

Q902

R903

C904

C903

ZD903

Q905

Q906

D901

C909

C920

ZD901

C908

R908

R909

R911

R910

FW901

FW901

Q914

C958

BI903

BI904

D991

~ –+

D990

R901

C952

C951

C961

C960

C959

(285)

(285)

R905

D904

B

C

E

111

EC

B

1

2

3

E

C

B

B

C

E

E

C

B

B

C

E

E

C

B

BCE

32

1

32

1

3

2

1

7

1

7

1

~~–+~

F999

T500mA L250V

F994

T3.15A L250V

F993

T3.15A L250V

F995

T6.3A L250V

F996

T6.3A L250V

F997

T2.5A L250V

F990

T5A L250V

F991

T2.5A L250V

F992

T2.5A L250V

T.F.

110V

127V

220V

230-240V

POWER PWB-D

SW991

VOLTAGE

SELECTOR

1

1

3

3

T991

POWER TRANSFORMER

AC POWER
SUPPLY CORD
AC 110/127/220/230-240V
50/ 60Hz (242)

7 6 5 4 3 2 1 7 6 5 4 3 2 1

CNPX12

TO SPEAKER AMP.1 PWB

P47 10-B

TO SPEAKER AMP.2 PWB

P47 7-C

CNPV12

CNS904

CNS903

RD
WH
WH
WH
WH
WH
WH

RD
WH
WH
WH
WH
WH
WH

1234567891011

WH
WH
WH
WH
WH
WH
WH
WH
WH
WH
WH

RD

CNPP01

TO MAIN PWB

P41 7-H

CNS901

WTP02

TO MAIN PWB

P40 5-H

A

B

C

D

E

F

G

H

1

23456

Figure 48 WIRING SIDE OF P.W.BOARD (9/9)

– 48 –

1

2

5ms

0.50 V
IC1 20 F.E

5ms

5.0 V
IC1 54 DRF

WAVEFORMS OF CD CIRCUIT

STOP PLAY

FOCUS SERCH

0.5ms

6

10.0 V
JP+

0.5ms

7

10.0 V
JP-

0.5ms

8

3
1

0.50 V
JP

0.5ms

9

1.00 V
TE

CD-K477W

3

4

3

4

5

6

8
9

0.5ms

1.00 V
HF

0.5ms

5.0 V
HFL

0.5ms

5

5.0 V
TES

0.5ms

1.00 V
HF

0.5ms

5.0 V
HFL

0.5ms

5.0 V
TES

50ms

10.0 V
JP+

50ms

7

10.0 V
JP-

50ms

0.50 V
JP

50ms

1.00 V
TE

CUE

1
2

3

REVIEW

1
2

3

CUE

10

11

10

11

12

20ms

1.00 V
SPO

20ms

2.00 V
CLV+

50ms

1.00 V
SPO

50ms

2.00 V
CLV+

5s
100mV
SLD

PLAY

NORMAL DISC
TN0=01

PLAY

TCD-712 (140mm)
TN0=01

PLAY

TCD-712

0.5ms

10.0 V

6

JP+

0.5ms

7

10.0 V
JP-

0.5ms

8

0.50 V
JP

0.5ms

9

1.00 V
TE

50ms

10.0 V

6

JP+
50ms

10.0 V

7

JP­50ms

8

0.50 V
JP

50ms

9

1.00 V
TE

REVIEW

12

0.5s
100mV
SLD

1

1

– 49 –

CD-K477W

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.

5V

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

2.5V
0V

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

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

No

No

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

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

Yes

Check IC2 pin26 Q91 and Q93 and the periphery.

Yes

ICF01 defective.

• When turntable fails to move.

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

Yes

No

No

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

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

OK

IC2 defective.

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

Yes

Check turntable motor and turntable mechanism.

No

– 50 –

Check Q91, Q93 and the periphery.

• When the CD tray fails to open or close.

CD-K477W

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

Yes

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

Yes

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

Yes

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

• The CD function will not work.

The CD operating keys don't work.

No

No

No

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.

OK

IC2 defective.

Check the periphery of IC81.

OK

IC81 defective.

Yes

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

Yes

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

Yes

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

Yes

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

• The CD operating keys work.

Check the Focus - HF system.

Playback can be performed without a disc.

Yes

Does the pick-up move up and down twice?

No

0.5s

0.50 V
IC1 16 FD

0.5s

0.50 V
IC1 7 TE

Yes

Focus search OK

Figure 51

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

1

2

Does the output waveform of IC1(16)(FD) match that shown in
Fig. 51?

No

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

Yes

Check the area around IC3-CNP2.

– 51 –

CD-K477W

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

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

Yes

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

Yes

Is HF waveform normal (see the Fig.52-1, 2)?

Yes

Check the tracking system.

HF

1.0V/DIV

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

Figure 52-1

• Check the tracking system.

No

No

No

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

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

Level is abnormal.

Waveform is unstable.

Yes

Yes

Yes

Figure 52-2

Check the spin system.

Check the periphery of
IC1 pins 41 and 42.

Check the spin system.

Waveform in case of
normal play-back

2
1

3
4

Check waveform of IC1 pin 7 (TE).

The waveform shown in
Fig.52-3 appears, and no­disc state appears soon.

Play is possible in
TEST mode.

Data cannot be read.

5ms

1.00 V
IC1 7 TE

5 ms

5.0 V
IC1 54 DRF

Yes

Although IL is possible,

Yes

play is impossible.

Tracking servo is
inoperative.

Yes

Check the VCO-PLL system.

Yes

Yes

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

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

4

3

Yes

Check the periphery
of IC 1 pin 14.

Figure 52-3

– 52 –

• Checking the spin system.

Play operation is performed without disc.

Yes

CD-K477W

The turntable rotates a little.

No

The turntable fails to rotate or rotates at high speed.

• Checking the VCO-PLL system

Play operation is performed when disc exits.

Yes

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

Stop --> Play

As VCO freque­ncy is locked at

0.5s

1.00 V
IC2 3 PDO

0.5s

1.00 V
IC2 16 FD

4.32 M Hz, voltage
of PDO rises and
stabilizes.

2

Yes

Yes

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.

Check PDO waveform (Fig. 53).

Abnormal

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

3

Figure 53

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

Check IC 2 pin 48 (EFLG).

Yes

Check IC2 pins 37, 40.

Abnomal

Check IC 401 and POWER AMP ICV01 and ICX01.

No

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

– 53 –

CD-K477W

FUNCTION TABLE OF IC

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

Pin No.

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.

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

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.

Input/Output

"H" for rough servo, and "L" for phase servo.

by EFM signal matches synchronous signal internally generated.

FunctionTerminal Name

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.

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

– 54 –

CD-K477W

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 SET

FR

PCK

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

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

Pin No.

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.

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

FunctionTerminal Name

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

Figure 55 BLOCK DIAGRAM OF IC

– 55 –

CD-K477W

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

Pin No.

1 FIN2 Connection pin for photodiode of pickup.

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.

Port Name

RF signal is generated through addition with FIN pin, and FE signal is generated through subtraction.

Function

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

– 56 –

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

CD-K477W

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.

VCC1

APC

1FIN2

RF DET

REF

DEFCLKCLDATCEDRFFSSVCC2REFIVRLP2PH1BH1LDDLDS

495051525354555657585961 60626364

48

NC

FIN1

TESI

47

2

TE

VCA

VCA

µ-COM

INTER FACE

SLC

RF AMP

I/V

3

E

4

F

5

TB

6

TE-

7

TE

8

9

SCI

BAL

T.SERVO & T.LOGIC

10

TH

11

TA

12

TD-

13

TD

14

JP

F.SERVO & F.LOGIC SPINDLE SERVO SLED SERVO

TBC

46

FSC

45

DGND

44

SLI

43

SLC

42

RFS-

41

RFSM

40

CV+

39

CV-

38

SLOF

37

HFL

36

TES

35

TOFF

34

TGL

33

JP+

15

TO

16

FD

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

FD-

FA FA-

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

24

NC

Figure 57 BLOCK DIAGRAM OF IC

– 57 –

CD-K477W

ICF01 RH-iX0235AWZZ:System Microcomputer (IX0235AW)

Port NamePin No.

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

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

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

12 RES Input Reset terminal
13 XT1/P74 Input Input terminal for 32.768 KHz crystal oscillator

14 XT2/P75 Output Output terminal for 32.768 KHz crystal oscillator

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

27-29 P71-73 Input 6-Bit input port. Dual-purpose function

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

54-55 S24/PD0

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

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

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

(72)* 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
95-100 P02-P07 Input/Output 8-Bit input/output port. Input/output can be specified in 4-bit units

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

Input/Output

HOLD release input. Port 0 interrupt input

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)

P70: INT0 input/HOLD release input/Nch-Tr. Output for watchdog timer

Connected to VDD when not used
Dual-purpose function
General-purpose input port P74

Open when not use
Dual-purpose function
General-purpose input port P75

AD input port (8 pcs.)

P71: INT1 input/HOLD release input
P72: INT2 input/timer 0 event input
P73: INT3 input (input with noise filter)/ timer 0 event input

-

Input/Output Segment output terminal for LCD display

HOLD release input. Port 0 interrupt input

Function

– 58 –

CD-K477W

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

Port NamePin No.

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

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

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

12 RES Input Reset terminal
13 XT1/P74 Input Input terminal for 32.768 KHz crystal oscillator

14 XT2/P75 Output Output terminal for 32.768 KHz crystal oscillator

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.

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

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

30-36 S0/T0- Output Fluorescent charcater display tube (VFD)display controller

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

46 VDD3 — Positive power terninal
47-50 S16-S20 Input/Output Fluorescent charcater display tube (VFD)display controller

51 VP — Negative power terminal (Independent power supply only for fluorescent character display tube

52-63 S21-S31 Input/Output Fluorescent charcater display tube (VFD)display controller

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

Input/Output

Function

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

Nchannel open output: 15V withstand rating

2-Bit input port. Dual-purpose functio
P70: INT0 input/HOLD release input/Nch-Tr. Output for watchdog timer

Connected to VDD when not used
Dual-purrpose function
General-purpose input port P74

Dual-purrpose function
General-purpose input port P75
When not use. (Oscillatication specification) Open. (Port specification) Connect to VDD1.

4-Bit input port. Dual-purrpose function
AD input port (8 pcs.)

4-Bit input port. Dual-purrpose function
AD input port (8 pcs.)

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

Pull-down resistance built-in output

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

drive output)
(Power supply for pull-dowen resistores)

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

– 59 –

CD-K477W

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

Port NamePin No.

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

72 VDD4 — Positive power terninal
73-80 S40-S47 Input/Output Fluorescent charcater display tube (VFD)display controller

(76~78)* Segment output

81-84 S48-S51 Input/Output Fluorescent charcater display tube (VFD)display controller

85-88 P00-P03 Input/Output 8-Bit input/output port. Input/output can be specified in 4-bit units.

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.

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

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

Input/Output

Function

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

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

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

HOLD release input. Port 0 interrupt input
N channel open output: 15V withstand rating

HOLD release input. Port 0 interrupt input
N channel open output: 15V withstand rating

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)

– 60 –

FLD01 : VVKBJ614GK/-1 FL Display

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

11G 10G 9G 4G

S4

S3

h

f

g

r

e

p

d

CD-K477W

CO

B7 B7

B14 B14

B21

S6

S5

a

j

b

k

m

B8

n

c

B1

S2

DP

(2G) (1G)

B15

B1

B8

S1

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

1G2G3G4G5G6G7G8G9G10G11G12G

S6
S4
S5
S3

DP

–
–
–

B7

B6

B5

B4

B2
B9

B1
B8

S2

–
–

–

B7

B14

–

B6

B13

–

B5

B12

–

B4

B11

–

B3

B10

–
B2
B9

–
B1
B8

–
S1

–

–

–

–

–

B14
S6
S4
S5
S3

a

a

h

h

j

j

k

k

b

b

f

f

m

m

g

g

c

c

e

e

r

r

p

p

n

n

d

d

DP

–

B21

B13

B20

B12

B19

B11

–

B18

–

B3B

–

B10

–

B17

–
–
–

B16

–
–
–

B15

–
–

–

–

–

–

–

–

–

–

–

–

S6
S4
S5
S3

DP

–

–

–

–

–

–

–

S6

S6

S4

S4

S5

S5

S3

S3

a

a

a

h

h

h

j

j

j

k

k

k

b

b

b

f

f

f

m

m

m

g

g

g

c

c

c

e

e

e

r

r

r

p

p

p

n

n

n

d

d

d

DP

DP

–

–

–

CO

–

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

S6
S4
S5
S3

DP

–

–

–

–

–

–

–

–

–

–

–

S6

S6

S4

S4

S5

S5

S3

S3

a

a

a

h

h

h

j

j

j

k

k

k

b

b

b

f

f

f

m

m

m

g

g

g

c

c

c

e

e

e

r

r

r

p

p

p

n

n

n

d

d

d

DP

DP

–

–

–

PIN No.

CONNECTION

PIN No.

CONNECTION

8G9G10G11G12GNPNPF2F2

1617181920212223

Figure 61 FL DISPLAY

– 61 –

303132333435363738394041424344454647

P26P271G2G3G4G5G6G7G

NPNP F1F1P1P2P3P4P5P6P7P8P9P10P11P12P13P14P15P16P17P18P19

242526272829

P20P21P22P23P24P25

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