Sharp CDBK-250-W Service manual

CD-BK250W/CD-BK2600W/CD-BK270W

SERVICE MANUAL

No. S5136CDBK250W

MINI COMPONENT SYSTEM

MODEL CD-BK250W

CD-BK250W Mini Component System consisting of
CD-BK250W (main unit) and CP-BK250 (speaker system).

Illustration: CD-BK250W/CD-BK2600W

MINI COMPONENT SYSTEM

MODEL CD-BK2600W

CD-BK2600W Mini Component System consisting of
CD-BK2600W (main unit) and CP-BK2600 (speaker system).

MINI COMPONENT SYSTEM

MODEL CD-BK270W

Illustration: CD-BK270W

CONTENTS

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

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

AC POWER SUPPLY CORD AND AC PLUG ADAPTOR ................................................................................................. 2

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

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

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

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

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

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

BLOCK DIAGRAM ........................................................................................................................................................... 17

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD..............................................................................................20

VOLTAGE ........................................................................................................................................................................ 38

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 39

TYPES OF TRANSISTOR AND LED............................................................................................................................... 39

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 40

TROUBLESHOOTING..................................................................................................................................................... 41

FUNCTION TABLE OF IC................................................................................................................................................ 45

FL DISPLAY..................................................................................................................................................................... 53

REPLACEMENT PARTS LIST/EXPLODED VIEW

CD-BK270W Mini Component System consisting of
CD-BK270W (main unit), CP-BK270 (front speakers) and
GBOXS0070AWM1 (surround speakers).

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

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-BK250W/CD-BK2600W/CD-BK270W

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 WITHOUT A COMPACT DISC IN POSITION AND THE

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

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

PRESET BEFORE SHIPMENT.

DO NOT ATTEMPT TO READJUST THE LASER PICKUP UNIT DURING REPLACEMENT OR SERVICING.
3-UNDER NO CIRCUMSTANCES STARE INTO THE PICKUP 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.

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

CAUTION-INVISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO
BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD. STIRRA
EJ IN I STRALEN OCH BETRAKTA EJ STRALEN MED OPTISKA INSTRUMENT.

ADVERSEL-USYNLIG LASERSTRALING VED ABNING. SE IKKE IND I
STRALEN-HELLER IKKE MED OPTISKE INSTRUMENTER.

VARO! AVATTAESSA OLET ALTTIINA NAKYMATON LASERSATEILYLLE.
ALA TUIJOTA SATEESEEN ALAKA KATSO SITA OPTISEN LAITTEEN LAPI.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD.
STIRRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN GENOM OPTISKT
INSTRUMENT.
ADVERSEL-USYNLIG LASERSTRALING NAR DEKSEL APNES. STIRR IKKE
INN I STRALEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER.

VOLTAGE SELECTION

Before operating the unit on mains, check the preset voltage. If the voltage is different from your local voltage, adjust the voltage
as follows.
Turn the selector with a screwdriver until the appropriate voltage number appears in the window (110 V, 127 V, 220 V or 230 V-240 V AC).

AC POWER SUPPLY CORD AND AC PLUG ADAPTOR

QACCA0003AW00

QACCE0010AW00

QACCL0005AW00

QPLGA0003AWZZ QPLGA0004AWZZ

QACCJ0007AW00

– 2 –

CD-BK250W/CD-BK2600W

General

Amplifier

CD player

Tuner

Cassette deck

Power source

AC 110/127/220/230 - 240 V, 50/60 Hz

Power consumption

130 W

Dimensions

Width: 270 mm (10-11/16")
Height: 330 mm (13")
Depth: 340 mm (13-3/8")

Weight

7.4 kg (16.1 lbs.)

Output power

Front speakers:
MPO: 160 W (80 W + 80 W) (10 % T.H.D.)
RMS: 100 W (50 W + 50 W) (10 % T.H.D.)
RMS: 70 W (35 W + 35 W) (0.9 % T.H.D.)
Surround speakers:
MPO: 80 W (40 W + 40 W) (10 % T.H.D.)
RMS: 50 W (25 W + 25 W) (10 % T.H.D.)
RMS: 34 W (17 W + 17 W) (0.9 % T.H.D.)

Output terminals

Front speakers: 8 ohms
Surround speakers: 16 ohms
Headphones: 16 - 50 ohms (recommended: 32 ohms)

Input terminals

Video/Auxiliary (audio signal): 500 mV/47 kohms
Microphone: 1 mV/600 ohms

Type

3-disc multi-play compact disc player

Signal readout

Non-contact, 3-beam semiconductor laser pickup

D/A converter

1-bit D/A converter

Frequency response

20 - 20,000 Hz

Dynamic range

90 dB (1 kHz)

Frequency range

FM: 88 - 108 MHz
AM: 531 - 1,602 kHz

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

0.3 % (WRMS)

Type

2-way type speaker system
5 cm (2") Tweeter
13 cm (5-1/4") Woofer

Maximum input power

100 W

Rated input power

50 W

Impedance

8 ohms

Dimensions

Width: 220 mm (8-11/16")
Height: 330 mm (13")
Depth: 217 mm (8-9/16")

Weight

3.0 kg (6.6 lbs.)/each

Type

10 cm (4") full-range speaker

Maximum input power

50 W

Rated input power

25 W

Impedance

16 ohms

Dimensions

Width: 200 mm (7-7/8")
Height: 93 mm (3-11/16")
Depth: 170 mm (6-3/4")

Weight

0.5 kg (1.1 lbs.)/each

General

Power source
Power consumption
Dimensions

Weight

Amplifier

Output power

Output terminals

Input terminals

CD player

Type
Signal readout
D/A converter
Frequency response
Dynamic range

Tuner

Frequency range

Cassette deck

Frequency response
Signal/noise ratio

Wow and flutter

CP-BK250/CP-BK2600

Type

Maximum input power
Rated input power
Impedance
Dimensions

Weight

Specifications for this model are subject to change without
prior notice.

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.

AC 110/127/220/230 - 240 V, 50/60 Hz
130 W
Width: 270 mm (10-11/16")

Height: 330 mm (13")
Depth: 340 mm (13-3/8")

7.2 kg (15.7 lbs.)

MPO: 240 W (120 W + 120 W) (10 % T.H.D.)
RMS: 150 W (75 W + 75 W) (10 % T.H.D.)
RMS: 104 W (52 W + 52 W) (0.9 % T.H.D.)
Speakers: 6 ohms
Headphones: 16 - 50 ohms (recommended: 32 ohms)
Video/Auxiliary (audio signal): 500 mV/47 kohms
Microphone: 1 mV/600 ohms

3-disc multi-play compact disc player
Non-contact, 3-beam semiconductor laser pickup
1-bit D/A converter
20 - 20,000 Hz
90 dB (1 kHz)

FM: 88 - 108 MHz
AM: 531 - 1,602 kHz

50 - 14,000 Hz (Normal tape)
55 dB (TAPE 1, playback)

50 dB (TAPE 2, recording/playback)

0.3 % (WRMS)

2-way type speaker system
5 cm (2") Tweeter
13 cm (5-1/4") Woofer
150 W
75 W
6 ohms
Width: 220 mm (8-11/16")

Height: 330 mm (13")
Depth: 217 mm (8-9/16")

3.0 kg (6.6 lbs.)/each

CD-BK250W/CD-BK2600W/CD-BK270W

SPECIFICATIONS

CD-BK270W

CP-BK270

GBOXS0070AWM1

– 3 –

CD-BK250W/CD-BK2600W/CD-BK270W

NAMES OF PARTS

Front panel

CD-BK250W/CD-BK2600W/CD-BK270W

1. Disc Tray

2. Timer Set Indicator

3. On/Stand-by Button

4. Tape 2 Cassette Compartment

5. Tape 1 Cassette Compartment

6. Equalizer Mode Select Button

7. Volume Up and Down Buttons

8. Extra Bass/Demo Mode Button

9. Disc Tray Open/Close Button

10. Disc Skip Button

11. Tuning and Time Up Button

12. Tape 2 Reverse Play Button

13. CD Button

14. Tuner (Band) Button

15. Tape (1 2) Button

16. Video/Auxiliary Button

17. Dimmer Button

18. Clock Button

19. Timer/Sleep Button

20. Headphone Socket

21. CD or Tape Stop Button

22. CD Play, Tape 1 Play or Tape 2 Forward Play Button

23. Tape 2 Reverse Mode Select Button

24. CD Track Up or Fast Forward, Tape 2 Fast Wind,
Tuner Preset Up Button

25. Tuning and Time Down Button

26. Memory/Set Button

27. Tape 2 Record Pause Button

28. CD Track Down or Fast Reverse, Tape 2 Fast Wind,
Tuner Preset Down Button

29. Microphone Level Control

30. Microphone Socket

1
2

3

17
18

19
20

6

8

7

9
10

4
5

161514131211

21
22
23
24

Display

CD-BK250W/CD-BK2600W/CD-BK270W

1. Extra Bass Indicator

2. FM Stereo Mode Indicator

3. FM Stereo Receiving Indicator

4. Karaoke Mode Indicator

5. CD Repeat Play Indicator

6. CD Pause Indicator

7. CD Play Indicator

8. Tape 2 Record Indicator

9. Tape Reverse Mode Indicator

10. Disc Number Indicators

11. Timer Play Indicator

12. Memory Indicator

13. Tape 2 Reverse Play Indicator

14. Tape 1 Play or Tape 2 Forward Play Indicator

15. Sleep Indicator

16. Timer Recording Indicator

17. Spectrum Analyser/Volume Level Indicator

1
2

34 5 6

17 17

25 26 27

7

17

29 3028

8
9

13 14 15 16

10
11

12

– 4 –

Rear panel

CD-BK250W/CD-BK2600W

1. FM 75 Ohms Aerial Terminal

2. FM Aerial Earth Terminal

3. AM Loop Aerial Socket

4. Span Selector Switch

5. Video/Auxiliary (Audio Signal) Input Sockets

6. Speaker Terminals

7. AC Power Lead

8. AC Voltage Selector

CD-BK250W/CD-BK2600W/CD-BK270W

1
2
3
4
5
6

CD-BK270W

1. Surround Speaker Terminals

2. FM 75 Ohms Aerial Terminal

3. FM Aerial Earth Terminal

4. AM Loop Aerial Socket

5. Span Selector Switch

6. Video/Auxiliary (Audio Signal) Input Sockets

7. Front Speaker Terminals

8. AC Power Lead

9. AC Voltage Selector

8

7

1
2
3
4
5
6

7

9

8

Speaker system

CP-BK250/CP-BK2600

1. Tweeter

2. Woofer

3. Bass Reflex Duct

4. Speaker Wire

– 5 –

1

2

3

3

4

CD-BK250W/CD-BK2600W/CD-BK270W

Front speaker

CP-BK270

1. Tweeter

2. Woofer

3. Bass Reflex Duct

4. Speaker Wire

Surround speaker (CD-BK270W Only)

GBOXS0070AWM1

1. Full-Range Speaker

2. Speaker Wire

1

2

3

3

4

1

2

Remote control

CD-BK250W/CD-BK2600W/CD-BK270W

1. Remote Control Transmitter

2. Echo Level Up and Down Buttons

3. Karaoke Mode Button

4. Disc Number Select Buttons

5. CD Clear Button

6. Tape 2 Record Pause Button

7. CD Track Down or Fast Reverse, Tape 2 Fast Wind,

Tuner Preset Down Button

8. Equalizer Mode Select Button

9. Tape 2 Reverse Play Button

10. CD Button

11. Tuner (Band) Button

12. On/Stand-by Button

13. Extra Bass Button

14. CD Random Button

15. CD Memory Button

16. CD Pause Button

17. CD Track Up or Fast Forward, Tape 2 Fast Wind,

Tuner Preset Up Button

18. CD or Tape Stop Button

19. CD Play or Repeat, Tape 1 Play,

Tape 2 Forward Play Button

20. Video/Auxiliary Button

21. Tape (1 2) Button

22. Volume Up and Down Buttons

10
11
12

13

1

2
3

14

4

15

5
6

16
17

18
7
8
9

19

20
21

22

Buttons with " " mark in the illustration can be operated on the remote control
only.
Other buttons can be operated both on the main unit and the remote control.

– 6 –

OPERATION MANUAL

Setting the Clock

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

1

Press the ON/STAND-BY button to turn the power on.

2

Press the CLOCK button and within 5 seconds, press the MEMO­RY/SET button.

3

Press the TUNING/TIME ( or ) button to select 24-hour or 12­hour display and then press the MEMORY/SET button.

"0:00" The 24-hour display will appear.

"AM 12:00" The 12-hour display will appear.
(AM 12:00 - PM 11:59)
"AM 0:00" The 12-hour display will appear.
(AM 0:00 - PM 11:59)
Note that this can only be set when the unit is first installed or it has been reset.

[Refer to "Clearing all the memory (reset)".]

(0:00 - 23:59)

CD-BK250W/CD-BK2600W/CD-BK270W

4

Press the TUNING/TIME ( or ) button to adjust the hour and then
press the MEMORY/SET button.

Press the TUNING/TIME ( or ) button once to advance the time by 1 hour.
Hold it down to advance continuously.

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

5

Press the TUNING/TIME ( or ) button to adjust the minutes and
then press the MEMORY/SET button.

Press the TUNING/TIME ( or ) button once to advance the time by 1
minute. Hold it down to change the time in 5-minute intervals.

The hour will not advance even if minutes advance from "59" to "00".
The clock begins counting from "0" seconds. (Seconds are not displayed.)

The time display will disappear after a few seconds.

To confirm the time display:

Press the CLOCK button.
The time display will appear for about 5 seconds.

Note:

The "CLOCK" or time will flash at the push of the CLOCK button when the AC power
supply is restored after a power failure or unplugging the unit.
Readjust the clock as follows.

To readjust the clock:

Perform "Setting the Clock" fr om the beginning. If the time display is flashing, step 3
(for selecting the 24-hour or 12-hour display) will be skipped.

To change the 24-hour or 12-hour display:

1 Clear all the programmed contents. [Refer to "Clearing all the memory (reset)".]
2 Perform "Setting the Clock" from the beginning.

System Connections

Setting the AC voltage selector

Check the setting of the AC voltage selector located on the rear panel before plug­ging the unit into an AC socket. If necessary, adjust the selector to correspond to the
AC power voltage used in your area.

Turn the selector with a screwdriver until the appropriate voltage num­ber appears in the window (110 V, 127 V, 220 V or 230 V - 240 V AC).

Connecting the AC power lead

After making all connections, plug the unit. If you plug the unit first,
the unit will enter the demonstration mode.

Note:

Unplug the AC power lead from the AC socket if the unit will not be in use for a pro­longed period of time.

AC Plug Adaptor

In areas (or countries) where an AC socket as shown in illustration is used, con­nect the unit using the AC plug adaptor supplied with the unit, as illustrated. The AC
plug adaptor is not included in areas where the AC wall socket and AC power plug
can be directly connected (see illustration ).

1

2

Setting the FM/AM span selector

The International Telecommunication Union (ITU) has established that member coun­tries should maintain either a 100 kHz or a 50 kHz interval between broadcasting fre­quencies of FM stations and 10 kHz or 9 kHz for AM station. The illustration shows
the 50/9 kHz zones (regions 1 and 3), and the 100/10 kHz zone (region 2).
Before using the unit, set the SPAN SELECTOR switch (on the rear panel) to the
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 (on the rear panel) as follows.

For 50 kHz FM interval (9 kHz in AM) 50/9
For 100 kHz FM interval (10 kHz in AM) 100/10

3 Whilst pressing down the button and the X-BASS/DEMO button, press the ON/

STAND-BY button until "CLEAR AL" appears.

Caution:

This operation will erase all data stored in memory including clock, timer settings,
tuner preset, and CD programme.

– 7 –

CD-BK250W/CD-BK2600W/CD-BK270W

y

Troubleshooting Chart

Many potential "problems" can be resolved by the owner without calling a serv ice
technician.
If something is wrong with this product, check the following before calling your autho­rised SHARP dealer or service centre.

General

The clock is not on time. Did a power failure occur? Reset the

When a button is pressed, the unit
does not respond.

No sound is heard. Is the volume level set to "0"?

Symptom Possible cause

clock.
Set this unit to the power stand-by mode

and then turn it back on.
If the unit still malfunctions, reset it.

Are the headphones connected?
Are the speaker wires disconnected?
Is the karaoke mode set to "L-CH", "R-CH"

or "V-CANCEL"?

CD player

Playback does not start. Is the disc loaded upside down?
Playback stops in the middle or is

not performed properly.
Playback sounds are skipped, or

stopped in the middle of a track.

Symptom Possible cause

Does the disc satisfy the standards?
Is the disc distorted or scratched?
Is the unit located near excessive vibra-

tions?
Is the disc very dirty?
Has condensation formed inside the unit?

Tuner

Radio makes unusual noise con­secutively.

Symptom Possible cause

Is the unit placed near the TV or comput­er?

Is the FM aerial or AM loop aerial placed
properly? Move the AC power lead away
from the aerial if located near.

Cassette deck

Symptom Possible cause

Cannot record. Is the erase-prevention tab removed?
Cannot record tracks with proper

sound quality.
Cannot erase completely.
Sound skipping. Is there any slack?

Cannot hear treble. Are the capstans, pinch rollers, or heads
Sound fluctuation.
Cannot remove the tape. If a power failure occurs during playback,

Is it a normal tape? (You cannot record on
a metal or CrO tape.)

Is the tape stretched?

dirty?

the heads remain engaged with the tape.
Do not open the compartment forcibly.
Wait until electricity resumes.

Karaoke

Symptom Possible cause

The vocal part of a multiplexed
disc is not heard.

Is the karaoke mode set to "L-CH", "R-CH"
or "V-CANCEL"?

Remote control

Symptom Possible cause

The remote control does not oper­ate.

Is the AC power lead of the unit plugged
in?

Is the battery polarity respected?
Are the batteries dead?
Is the distance or angle incorrect?
Does the remote control sensor receive

strong light?

Troubleshooting Chart

If trouble occurs

When this product is subjected to strong external interference (mechanical shock,
excessive static electricity, abnormal supply voltage due to lightning, etc.) or if it is
operated incorrectly, it may malfunction.

If such a problem occurs, do the following:

1 Set the unit to the stand-by mode and turn the power on again.
2 If the unit is not restored in the previous operation, unplug and plug in the unit,

and then turn the power on.

Note:

If neither operation above restores the unit, clear all the memory by resetting it.

Clearing all the memory (reset)

1 Press the ON/STAND-BY button to enter the power stand-by mode.
2 Whilst pressing down the button and the X-BASS/DEMO button, press the ON/

STAND-BY button until "CLEAR AL" appears.

Caution:

This operation will erase all data stored in memory including clock, timer settings,
tuner preset, and CD programme.

Before transporting the unit

1 Press the ON/STAND-BY button to turn the power on.
2 Press the CD button.
3 Press the OPE N/CLOSE button to open the disc tray.

Remove all CDs inserted in the unit.

4 Press the OPE N/CLOSE button to close the disc tray.

Make sure that "NO DISC" is displayed.

5 Press the ON/STAND-BY button to enter the stand-by mode, and then unplug

the AC power lead from the AC socket.

Remote Control

Test of the remote control

Face the remote control directly to the remote sensor on the unit.

The remote control can be used within the range shown below:

Press the ON/STAND-BY button. Does the power turn on? Now, you can enjoy the
music.

Remote sensor

0.2 m - 6 m
(8" - 20')

Notes concerning use:

Replace the batteries if the operating distance is reduced or if the operation
becomes erratic. Purchase 2 "AA" size batteries (UM/SUM-3, R6, HP-7 or similar).
Periodically clean the transmitter on the remote control and the sensor on the unit
with a soft cloth.
Exposing the sensor on the unit to strong light may interfere with operation.
Change the lighting or the direction of the unit.
Keep the remote control awa

from moisture, heat, shock, and vibrations.

– 8 –

(B1)x4
ø3x10mm

(B1)x2
ø3x10mm

Rear
Panel

(B1)x2
ø3x10mm

Side Panel
(Right)

Side Panel
(Left)

(A1)x2
ø3x12mm

(A1)x2
ø3x12mm

Top Cabinet

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 sufficient care on static electricity of integrated
circuits and other circuits when servicing.

CD-BK250W/CD-BK2600W/CD-BK270W

STEP

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

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

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

4 Rear Panel with 1. Screw .................... (D1) x11 9-2

5 Main PWB 1. Screw ...................... (E1) x3

6 Front Panel 1. Screw .......................(F1) x2 10-3

7 Display PWB 1. Knob........................ (G1) x1 10-4

8 Tape Mechanism 1. Open the cassette holder. .. 10-4

9

10 Mic PWB 1. Screw ...................... (K1) x2 10-4

11 Turntable 1. Hook......................... (L1) x2 10-5

12 Disc Tray 1.

13 CD Servo PWB 1. Screw ...................... (N1) x1 11-1

14 CD Mechanism 1. Hook........................ (P1) x2 11-2

REMOVAL

(Left/Right)

CD Tray Cover open the disc tray, take out

Fan Motor

Headphones PWB

(Note 2) 2. Hook........................ (N2) x2

the CD tray cover, and close.
(Note 1)

2. Screw ...................... (C1) x1

3. Hook........................ (C2) x3

4. Hook........................ (C3) x2

5. Socket ..................... (C4) x2

1. Screw .................... (D1) x14

(For CD-BK270W)

2. Socket ..................... (D2) x1

2. Socket ..................... (D2) x2

(For CD-BK270W)

2. Socket ..................... (E2) x4 10-3

3. Flat Cable ............... (E3) x1

4. Flat Wire.................. (E4) x1

2. Screw ....................(G2) x12

3. Flat Cable ............... (G3) x1

2. Screw...................... (H1) x5

1. Screw .......................(J1) x1 10-4

2. Tip ........................... (K2) x1

(CD-BK270W Only)

2. Cover ....................... (L2) x1

2.

3.

3. Socket ..................... (N3) x4

2. Hook........................ (P2) x3

PROCEDURE

(For CD-BK250W/CD-BK2600W)

(For CD-BK250W/CD-BK2600W)

Turn fully the lock lever in the
arrow direction
While holding the lock lever,rotate
the cam gear until the cam gear
rib engages with the clamp lever.

Push the slide chassis backward
to engage the claw with the
groove and remove it in the
direction of the arrow..(M1) x6

.

CD-BK250W/CD-BK2600W/CD-BK270W

DISASSEMBLY

Note 1: How to open the changer manually. (Fig. 10-1)

1. In this state, turn fully the lock lever in the arrow direction through
the hole on the loading chassis bottom.

2.

While holding the lock lever, rotate the cam gear anticlockwise until the

cam gear rib engages with the clamp lever.

3. After that, push forward the slide chassis.

Note 2:

1. After removing the connector for the optical pickup from the

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

Note 3:

1. Be careful not to break the claw of the CD mechanism.

2. When fining back the cam gear assembly, let it lock by front

movement.

CD-BK250W/CD-BK2600W/CD-BK270W

FIGURE

9-2,10-3

10-1
10-2

10-6

Illustration: CD-BK270W

(C3)x1

Pull

(D2)x1

(D2)x1

CD-BK270W
ONLY

(C1)x1
ø3x10mm

Rear
Panel

(D1)x3
ø3x10mm

CD-BK270W
ONLY

– 9 –

CD Servo
PWB

(D1)x9
ø3x10mm

Figure 9-1

(C4)x2

Main PWB

Figure 9-2

(Fig. 10-2)

1

Pull

(D1)x2
ø3x10mm

CD Tray Cover

(C2)x3

1

2

CD Player
Unit

(C3)x1

(E1)x1
ø3x10mm

Lug Wire

CD-BK250W/CD-BK2600W/CD-BK270W

Figure 10-1

Lock Lever

CD Player Unit
(Bottom View)

Clamp Lever

Display
PWB

(G2)x12
ø3x10mm

Tape
Mechanism

Lug Wire

(H1)x5
ø3x10mm

(J1)x1
ø3x10mm

Headphones
PWB

(G3)x1

Lug Wire

Figure 10-4

(L2)x1

(G1)x1

(K1)x2
ø3x10mm

CD-BK270W
ONLY

(K2)x1

Mic PWB

Front
Panel

Open

Cassette
Holder

(E2)x1

Power PWB

(E3)x1

Transformer
PWB

(E2)x1

(E1)x2

ø3x10mm

(E2)x1

Figure 10-2

(E2)x1

CD Player Unit
(Top View)

Cam Gear Rib

(E4)x1

Headphones
PWB

Front
Panel

Turntable

Slide
Chassis

(L1)x2

CD Player Unit

Figure 10-5

(M1)x3

3

2

Main PWB

Figure 10-3

Mic PWB

(F1)x2

ø3x8mm

1

(M1)x3

Figure 10-6

– 10 –

CD-BK250W/CD-BK2600W/CD-BK270W

(N2)x2

(N3)x2

(N1)x1
ø3x8mm

(N3)x2

CD Servo

PWB

Figure 11-1

Slide
Chassis

CD
Mechanism

(P1)x1

(P2)x3

(P1)x1

Slide
Chassis

Figure 11-2

CP-BK250/CP-BK2600/CP-BK270

STEP

Front Panel

REMOVAL PROCEDURE

1 Front Panel 1. Net.......................... (A1) x1 11-3

2 Woofer 1. Screw ..................... (B1) x4 11-4

3 Tweeter 1. Screw ..................... (C1) x2 11-4

(A1)x1

Screwdriver

Driver should
be pried away

Speaker Box

from Speaker Box.

Figure 11-3

FIGURE

(C1)x2

ø3x10mm

Tweeter

(B1)x4

ø4x12mm

Woofer

Figure 11-4

– 11 –

CD-BK250W/CD-BK2600W/CD-BK270W

REMOVING AND REINSTALLING THE MAIN PARTS

TAPE MECHANISM SECTION

Perform steps 1 to 6 and 8 of the disassembly method to
remove the tape mechanism.

How to remove the record/playback and erase
heads (TAPE 2) (See Fig. 12-1)

1. When you remove the screws (A1) x 2 pcs., the recording/
playback head and three-dimensional head of the erasing
head can be removed.

How to remove the playback head (TAPE 1)
(See Fig. 12-2)

1. When you remove the screws (B1) x 2 pcs., the playback
head.

How to remove the pinch roller (TAPE 1/2)
(See Fig. 12-3)

1. Carefully bend the pinch roller pawl in the direction of the
arrow <A>, and remove the pinch roller (C1) x 1 pc., in the
direction of the arrow <B>.

Note:

When installing the pinch roller, pay attention to the spring
mounting position.

Erase Head

(A1)x2
Ø2x6mm

Figure 12-1

TAPE 2

TAPE 1

Clutch Ass'y

Record/Playback
Head

Clutch Ass'y

Playback
Head

How to remove the belt (TAPE 2) (See Fig. 12-4)

1. Remove the main belt (D1) x 1 pc., from the motor side.

2. Remove the FF/REW belt (D2) x 1 pc.

How to remove the belt (TAPE 1) (See Fig. 12-4)

1. Remove the main belt (E1) x 1 pc., from the motor side.

2. Remove the FF/REW belt (E2) x 1 pc.

How to remove the motor (See Fig. 12-5)

1. Remove the screws (F1) x 2 pcs., to remove the motor.

Motor

Clutch Ass'y

TAPE 2

(B1)x1
Ø2x9mm

Pinch Roller
(C1)x1

FF/REW
Belt
(D2)x1

(B1)x1
Ø2x5mm

Figure 12-2

Pull

<B>

Figure 12-3

Motor

Pull

Pinch
Roller
Pawl

<A>

TAPE 2
Main Belt
(D1)x1

Motor

TAPE 1
Main Belt
(E1)x1

(F1)x2

Ø2.6x5mm

– 12 –

Main Belt
(D1)x1

Main Belt
(E1)x1

Figure 12-4Figure 12-5

TAPE 1

FF/REW
Belt
(E2)x1

CD-BK250W/CD-BK2600W/CD-BK270W

CD MECHANISM SECTION

Perform steps 1, 2, 3, 11,12, 13 and 14 of the disassembly
method to remove the CD mechanism.

How to remove the loading motor
(See Fig. 13-1)

1. Bend the hooks (A1) x 5 pcs., to remove the loading motor.

2. Remove the drive belt (A2) x 1pc.

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

1. Remove the stop washer (B1) x 1 pc., to remove the gear
(B2) x 1 pc.

2. Remove the screws (B3) x 2 pcs., to remove the shaft
(B4) x 1 pc.

3. Remove the pickup.

Note

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

Slide
Chassis

(B3)x2
ø2.6x6mm

Loading Motor

(A1)x2

Figure 13-1

Stop Washer
(B1)x1

Pulley

Drive Belt
(A2)x1

Loading
Motor PWB

(A1)x1

(A1)x2

Loading
Motor

ADJUSTMENT

MECHANISM SECTION

• Driving Force Check

Torque Meter Specified Value

Play: TW-2111 Tape 1: Over 80 g

• Torque Check

Torque Meter

Play: TW-2111 30 to 80 g.cm 30 to 80 g.cm
Fast forward: TW-2231 — 70 to 180 g.cm
Rewind: TW-2231 — 70 to 180 g.cm

Tape 2: Over 80 g

Specified Value

Tape 1

Tape 2

Pickup

Shaft
(B4)x1

Gear

CD Mechanism

(B2)x1

Figure 13-2

• Tape Speed

Test Tape

Normal MTT-111 Variable 3,000 ± 30 Hz Speaker
speed Resistor in Terminal

Adjusting

Point

motor. (Load

Specified

Value

TAPE MECHANISM

Instrument

Connection

resistance:
6 ohms)

– 13 –

Tape
Motor

Variable Resistor in motor

Figure 13-3

CD-BK250W/CD-BK2600W/CD-BK270W
TUNER SECTION

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

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage

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

Coverage 1.1 ± 0.1 V
AM Tracking 990 kHz 990 kHz (fL): T303 *1

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

Frequency Frequency

Display

Setting/

Adjusting

Parts

FM BAND
COVERAGE fL

SO302

FM ANTENNA

TERMINAL

Instrument

Connection

T301

T351

• FM RF

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

Test Stage

FM Band — 87.50 MHz T301(fL): *1
Coverage 1.3 V ± 0.1 V

FM RF 98.00 MHz 98.00 MHz L312 *2

Frequency Frequency

Display

(10-30 dB)

Adjusting

*1. Input: Antenna Output: TP301
*2. Input: Antenna Output: Speaker terminal

CNP301

IC301

AM LOOP
ANTENNA

T302

FM IF

L312

FM RF

T303

AM BAND
COVERAGE fL

MAIN PWB

AM
TRACKING fL

R316

TP301

T306

Setting/

Point

Instrument

Connection

AM IF

Figure 14-1 ADJUSTMENT POINTS

CD SECTION

• Adjustment

Since this CD system incorporates the following automatic
adjustment functions, readjustment is not needed when
replacing the pickup. Therefore, different PWBs and pickups
can be combined freely.
Each time a disc is changed, these adjustments are
performed automatically. Therefore, playback of each disc
can be performed under optimum conditions.

Items adjusted automatically

(1) Offset adjustment (The offset voltage between the head

amplifier output and the VREF reference voltage is
compensated inside the IC.)

* Focus offset adjustment
* Tracking offset adjustment

(2) Tracking balance adjustment (waveform drawing

Fig.14-2 EFBL)

(3) Gain adjustment (The gain is compensated inside the IC

so that the loop gain at the gain crossover frequency will
be 0 dB.)

* Focus gain adjustment
* Tracking gain adjustment

TP302

R357

CD ERROR CODE DESCRIPTION

Error

[Servo System Error]
0001 Cannot detect Pickup-in SW
0002 DSP access error

[Error during close operation]
0101 Open/Close SW not functioning (Low → High)
0103 Open/Close SW not functioning (High → Low)

[Error during open operation]
0201 Open/Close SW not functioning (Low → High)
0203 Open/Close SW not functioning (High → Low)

[Error during skip operation]
0302 Pickup-in SW is not detected
0306 During Disc 1 search, Open/Close SW or Clamp SW

or Disc SW do not change to low.
0307 Clamp SW not function (Low → High)
0308 Clamp SW not function (High → Low)

CH1=500 mV

DC 10:1

FDO

TE

T

CH2=200 mV

DC 10:1

T

1

3

Stopped

State Code

CH3=1 V

DC 10:1

1999/04/05 20:26:47

500 ms/div

(500 ms/div)

NORM:20 kS/s

– 14 –

EFBL

2

Smoothing : ON CH1 : 0.000 V
BW : FULL

CH2 : 0.000 V
CH3 : 0.00 V
CH4 : 0.00 V

Figure 14-2

=Record Length=

Main : 100K
Zoom : 2k

CH2
v/DIV
200 mV

=Trigger==Filter= =Offset=
Mode : SINGLE
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs

TEST MODE

• Setting the test mode
Any one of test mode can be set by pressing several keys as follows.
<X-BASS> + <CD> + <POWER> TEST:CD operation test

Function: -CD test mode.

-Enter test mode.

C D T E S T

OPEN/CLOSE operation is using manual.

<< >>, << >> buttons make pick's slide possible.

CD-BK250W/CD-BK2600W/CD-BK270W

IL isn't done

<<MEMORY>>
key input

Adjustment result
automatically will
display as below
for each 2 sec :
a) "FOFF_XX"
b) "TOFF_XX"
c) "TBAL_XX"
d) "TGAN_XX"
f) "FGAN_XX"
g) "RFLS_XX"

explanation:
a) Focus off set = "FOFF_XX"
b) Tracking off set = "TOFF_XX"
c) Tracking balance = "TBAL_XX"
d) Tracking gain = "TGAN_XX"
f) Focus Gain = "FGAN_XX"
g) RF level shift = "RFLS_XX"

VOL — Last memory
BAL — CENTER
P.GEQ — FLAT
X-BASS — OFF

To cancel : Power OFF

<<PLAY>> key input.

Do TOC IL. Do normal play
When these following key is input
into PLAY key, track number can
be appoint directly

<< 1>> key: Track 4
<<

2>> key: Track 9
3>> key: Track 15

<<

<<STOP>> key input.

XX: Hex value

STOP

<<MEMORY>> key input.

Laser ON.

<<MEMORY>> key input.

Tracking OFF play at that
specific point.

<<MEMORY>> key input.

Tracking ON play from
that specific point.

Adjustment result auto­matically will display as
below
for each 2 sec :
a) "FOFF_XX"
b) "TOFF_XX"
c) "TBAL_XX"
d) "TGAN_XX"
f) "FGAN_XX"
g) "RFLS_XX"

<<STOP>> key input.

STOP

Sliding the PICKUP with
<< >>, << >> button
must only be in STOP mode.

– 15 –

CD-BK250W/CD-BK2600W/CD-BK270W

Standard Specification of Stereo System Error Message Display Contents

Error Contents DISPLAY Notes
Output while Device Protection Operation 'PROTECT' 00: While in Protect Circuit Operate

01: Over Current Detection
02: DC Detection
03:

TAPE Mechanism Error 'ER-TA**' 00: Tape Mechanism Error

01: Initial Error
02:
03:

CD/VCD Pickup Mechanism Error 'ER-CD**' 00: Pickup Mechanism Error

01: PU-IN SW Detection NG
02:
03:
04:

CD Changer Mechanism Error 'ER-CD**' 10: Changer Error

11: Initial Error
12:
13:

Tray Error 'ET-CD**' 20: Tray Error

21:
22:

23:
Focus Not Match 'NO DISC'
IL Time Over 'NOT READ'

TUN PLL Unlock 'ER-TU**' 00: TUN Error

01: PLL Unlock

02:

03:

– 16 –

TO MAIN SECTION

TO DISPLAY SECTION

CD-BK250W/CD-BK2600W/CD-BK270W

SW3

SW2

DISC

CLAMP

SW1

OPEN/

CLOSE

NUMBER

T/T UP DOWN

M

M3

LOADING

XL1

33.8688MHz

+3.3V

316452

316452

OC. DISC NO

CLAMP SW

CD RES

CLK

DI

DO

CE

DRF

+5(+B5)

+5(+B5)

AGND

DGND

L-CH

R-CH

CNP7

61

CE

62

CLK

63

DI

64

DO

65

WRQ

66

RES

615432

42

LCHO

LC78645E

CD SERVO

XOUT

48

XIN

49

VVDD

XVDD

RFVDD

5

ADAVDD

7

18

LVDD

46

41

47

WRQ

4543 44 25 70

LVSS

RVSS

RCHO

IC1

RVDD

FIN2

FIN1

54

3271689

Q3

71

CONT2

CONT3

CONT4

CONT5

SLDO

SPDO

LDD

LDS

TIN2

TIN1

80

79

987

10

FD0
TD0

CNP8

75
69
57
56
55
51
50
40

37
28
19

26

23
22
21
20

+5V

316452

17 25

12

18

VCC1

40

VCC4

FOCUS/TRACKING/

24

VCC2

23

VCC3

SPIN/SLED

BI4

CNS4

CNP4

41 8339

IC2

M63001FP

DRIVER

42

35

29
22

21

14

8

+3.3V

CONSTANT

VOLTAGE

+5V

PICK UP UNIT

Q2

LASER

DRIVER

+3.3V

Q1

FOCUS COIL

TRACKING COIL

4765

M1

SPINDLE

MOTOR

M2

SLED

MOTOR

M

M

15

168226 27

SW4

PICKUP

IN

Figure 17 BLOCK DIAGRAM (1/3)

– 17 –

CD-BK250W/CD-BK2600W/CD-BK270W

4

5

8

M

C

FM

ANTENNA

JK1

MIC

VRK1

MIC

VOLUME

MIC IN

ICK1

M65856SP

MIC AMP.

LATCH

CLK

DATA
LOUT

9

ROUT

L IN

12

R IN

13
22

VCC

+B5

QK1

40

41
42

36
35
31

32

23

AM

ANTENNA

5
6

2
3

KIA4558P

OPE AMP.

SO302

CNP301

1
2

+B4

8

ICK2

FM FRONT END

BF301
B.P.F

AM TRACKING

T303 T306

L

7
1

R

IC301

TA7358AP

1

432

5

7

FM

L312 T301

RF

FM

AM BAND
COVERAGE

IC302

LC72131

PLL(TUNER)

SWITCHING

JK690

VIDEO/AUX IN

R

AUX

L

CNP7

FROM CD SECTION

8

OSC

OSC

Q302

6
9

FM

+B

FM

CNS601

FM IF

OSC BUFF

CF303T302

VT

20 22 11

+B4

FM

Q360

1
2
3

X352

4.5 MHZ

OSC

TUNER

450kHz

T351

CF352

AM IF

21

AM MIX

21

AM OSC IN

AM RF IN

1615

9

7

L

R

L

TAPE

R

L

R

L

CD

R

10.7 MHz
X351

CF351

456 kHz

FM+B

13

FM

DET

VCO

14

L

MO/ST

R

15

FM/AM

MPXIN

12

1623

4

AM IF

18

7

98517

GND

FM/AM

OUT

IC303

LA1832S

STEREO

FM IF DET.

FM MPX./

AM IF MPX.

CLK

DO

DI

CE

6

5413

MO/ST

FM/AM

10

9
16
10
15
11
14

AUDIO PROCESSOR

12
13

LR
7

17

21

23

IC601

LC75341

18 178

3

+B4

CE

CLK

1

DI

2

24
21

4

R
L

–20 dB

ATT

+B

Q601
Q602

L-CH

TAPE 1

TAPE 2

R-CH

L-CH
R-CH

ERASE

HEAD

P.B. HEAD

REC PB HEAD

REC

P.B.

AC BIAS

SWITCHING
Q103­Q104

Q105
Q106

BIAS

Q111

L103

OSC

L(T1)

1

24

R(T1)
L(T2)

2

23

R(T2)
L NF

3

R NF

22

6
9

16
14

REF

12

SWITCHING

Q112
SWITCHING

T1/T2
REC

NOR/
HIGH

15

POP REDUCE

L REC
R REC

SWITCHING

Q114

13

P.B

L

4

21

R

5

20

H/N

7

18

L NF

8

R NF

17

10

ALC

T1/T2

19

Q113

Q109

SWITCHING

+B4

PB

RECRL

IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.

BIAS

Q110

Q107
Q108

MUTING

–B2

+B4

8

IC561

4

IC562

IC561,IC

KIA455

OPE A

RE

1
7

Figure 18 BLOCK DIAGRAM (2/3)

– 18 –

CD-BK250W/CD-BK2600W/CD-BK270W

4

+B4

FL701

FL DISPLAY

47

4344 42 40

CEDIDO

–

Q914

PT801

POWER

4948

AVDD

CLK

RL914

T.F.

RX701

39

36
35
34
33

–

31

REMOTE

1

SENSOR

+B5

SW701-SW703
SW712-SW732

Q906

CD-BK250W/CD-BK2600W: 6 ohms
CD-BK270W: 8 ohms

CD-BK270W ONLY

3

2

KEY

SW601

SPAN

SELECTOR

TO CD

SECTION

+B3

JK701
HEADPHONES

+B5

M901

M

FAN

MOTOR

SO901
SPEAKER
TERMINAL

SR1

SURROUND

SPEAKER

TERMINAL

SW801

VOLTAGE

SELECTOR

230-240 V

220 V
127 V
110 V

+B5

AC POWER
SUPPLY CORD
AC 110/127/220/
230-240 V, 50/60 Hz

13 44

Q907
Q908

Vcc

13

9

-B1

+B1

IC902

KTC2026

IC903

KIA7810AP

+5V

SW5V

6 132

Q701-Q703

67
78

80

VLOAD

79

81

–

89

90

–

92

93

-

100

12456 78

+B5

Q902
Q903
Q905
Q904

L-OUT

7

10

R-OUT

IC901
STK4029S
POWER AMP.

IC904

351

kHz

14

L
R

15

SP. DET.

1

DI

2

CE

24

LK

–20 dB

R

21

ATT

4

R

07
08

ING

B2

Q601

L

Q602

REC/PLAY

+B4

8

1

IC561

4

IC562

7

IC561,IC562

KIA4558P

OPE AMP.

28

29

T1/T2

1

L

15

R

–

+Vcc

8

(2/2)

IC701

VF1

IX0427AW

CONSTANT VOLTAGE REGULATOR

M12

+B3

VF2

+B4
A+10V

VOLTAGE REGULATOR

–VF

+B5

KIA7805AP

16

14

5761 56 54535251 5055 49 48

31

23

IC701

IX0427AW(1/2)

SYSTEM

MICROCOMPUTER

VDD

RESET

–B2

D901

D902~D905

RESET

1112 13

1 0 16 1 7 20 2123152224

9

XL700

4.194304 MHz

Q709

F901

T4A L 250V

F902

T4A L 250V

F904

T2A L 250V

F903

T2A L 250V

Q901

32

+B5

4546

VDD

VDD

+B5

+B5

TRANSFORMER

BIAS

Figure 19 BLOCK DIAGRAM (3/3)

– 19 –

CD-BK250W/CD-BK2600W/CD-BK270W

_

T

6

5

5

5

6

/

6

5

5

0

0

5

1
1

220/10

A

MAIN PWB-A1(1/3)

1
2

B

3
4

CNP7

5

P29 12 - D

6

TO CD SERVO PWB

CNS601

C

D

R-CH

1
2

L-CH

3
4

CD_+B

5
6

BI601

(A_+B) SW_5V

1

CD_+B SW_5V

2

GND

3

L-CH

4

GND

5

R-CH

6

GND

7

M_+12V

8

A+10V

9

GND

10

GND

11

SP_DET

12

P22 1 - F, G

SP_RLY

13

TO POWER SECTION

SW_5V

14

UN_SW_5V

15

–VP

17

VF2

18

VF1

19

P_IN

20

–15V

21

A_GND

CD_GND

A_+B

+B

+B

+B

+B

+B
+B

-B

R618

330

R619

330

AUDIO PROCESSOR

1

C620

1/50

C606

0.15
C614

1/50

C618

1/50

C624
1/50

10

11
12

2
3
4
5
6
7
8
9

DI
CE

VSS
LOUT

LBASS
LTRE

LIN
LSEL0
L4
L3
L2
L1

C610

R604

1/50

10K

390

R612

R614

R615

3.3K

3.3K

Q601

KTC3199 GR

390

R613

KTC3199 GR

22K

R620

C636

0.001

C635

0.001
R611

2.2K

Q602

C639

1/50

R610

2.2K

R621

C608

R606

0.1

3.9K

C612

0.0027

C616

4.7/50

C622

1/50

R608

1.2K

C626

0.0056

22K

R616

2.2K

Q604

C638

KTC3199 GR

0.001

C637

0.001
R617

2.2K

Q603

KTC3199 GR

C640

22/50

+B

+B

-B -B

R601

R602

1K

1K

–

+

IC601

LC75341

CCB

INTERFACE

–

+

+

–

+

AUX
DECK
TUNER

CD

C601

220/16

24

CLK

+B

VDD

23

–

+

VREF

+

–

ROUT

+

–

RBASS

RTRE

–

RSEL0

+

–

+B

C6
22/

22

C

21
20

C60

0.15

19

RIN

18

C

1/

17

C

4.7

R4

16

C6

1/

R3

15

C6

1/

R2

14

C

1/

R1

13

C623

1/50

E

F

G

TAPE 1

PLAYBACK HEAD

R-CHL-CH

ERASE HEAD

R-CH

L-CH

TAPE 2

RECORD/

PLAYBACK HEAD

Q112~Q114: SWITCHING

R147

10K

R148

4.7K

Q113

KRC104 M

2

213

R111

R101

R102

47K

R107

4.7K

R109

4.7K

R110

47K

R108

1

15K

1K

1K

Q106

C136

0.022

R146

10K

Q112

KTA1266 GR

C101

T1_R

1

1

A_GND

2

2

T1_L

3

3

CNP101

M_GND

1

ERASE

1

2

6
5
4
3
2
1

2
3
4
5
6

CNS102

T2_R2

3

A_GND

4

T2_R1

5

T2_L1

6

T2_L2

7

BI102

560P

C102
560P

C103
180P

C104
180P

Q101

2SC1845 F

R103

2.2K
R105

3.3K

Q103

2SC1845 F

Q104

R106

3.3K

2SC1845 F

R104

2.2K
Q102

2SC1845 F

Q101~Q106: SWITCHING

3

Q114

KRC104 M

Q105

KTC3199 GR

560P

C105

KTC3199 GR

560P

C106

R112 15K

R
C107

330P

L

R149

150

C141

C108
330P

R114

1K

100/16

R113

1K

L

100/25

100/25

C111

C112

C113

0.033
R117

100K

C110
330P

C114

0.033

R116

56

+B

R

R137
220K

C150

10/50

R115

56

33K

R121

C115

R123

560P

5.6K

C117

47/25

R119

3.9K

C109
330P

–

+

112K

Hich=T1

112K

+

–

5

321

4

R118

R120

100K

3.9K
R124

5.6K

C116

C118

560P

47/25

R122

PLAYBACK AND RECORD/

PLAYBACK AMP.

R125

C119

0.0022

6

C121

0.022
C122

C120

33K

IC101

AN7345K

68K

R129

3.3/50

0.0022

R127

R128

6.8K

3.9K

7

6.8K

R126

C123

C124

3.9K

270P

270P

R130

R139

10K

Q107

KTC3199 GR

MUTING

R133

1.5K

R131

C127

C125
22/50

–

+

Hich=CHROME

+

–

8

C126
22/50

R132

C128

1.5K

100

0.022

56K
56K

100

0.022

C129

C130

0.0033

9

0.0033

C131

C132
47/25

R138

10K

R135

47/25

10 11

R134
10K

ALC

REC

Q

KTC3

MU

10K

C134

C133

22/50

1415161718192021222324

NOR/CRO2

RIPPLE

ALC

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.

1

23456

Figure 20 SCHEMATIC DIAGRAM (1/11)

– 20 –

P30 6 - C

0

0022

3

3/50

68K

TO MIC PWB

CNPK1

1 2 3 4 5 6 7 8 9

A_GND

A_+10V

KOK OUT(R)

KOK OUT(L)

KOK IN(L)

1 2 3 4 5 6 7 8 9

KOK IN(R)

DI

CLK

10

MIC IN

KOK LATCH

10

CD-BK250W/CD-BK2600W/CD-BK270W

CNSK1

BIK1

+B

FM SIGNAL
PLAYBACK SIGNAL

IC601
C75341
PROCESSOR

–

+

CCB

+

TERFACE

–

+

–

–

+

+

–

+

–

AUX
DECK
TUNER

CD

+B +B

R137
220K

Q107

C150

10/50

KTC3199 GR

MUTING

3.9K

R127

1.5K

R131

270P

C123

6.8K

R129

C125
22/50

Hich=CHROME

7

8

C126
22/50

6.8K

R128

.

270P

C124

.

3.9K

R126

1.5K

R130

K
RECORD/

AMP.

CLK
VDD

VREF

ROUT

RBASS

RTRE

RSEL0

R139

10K

100

R133

C127

0.022

–

+

56K
56K

+

–

100

R132

C128

0.022

RIN

R4
R3
R2
R1

C129

C130

24
23
22
21

20
19
18
17
16
15
14
13

0.0033

9

C132
47/25

0.0033

-B

C131

C601

220/16

+B

C603
22/50

C605

0.15

C623

1/50

REC_R

R138

10K

KTC3199 GR

MUTING

10K

R135

47/25

C133

22/50

NOR/CRO2

ALC

ALC

10 11 12

R134
10K

C607

0.1

C613

1/50

C615

4.7/50
C617

1/50

C619

1/50
C621

1/50

Q108

C134

220/10

131415161718

RIPPLE

C135

0.022

VCC

GND

IC101

AN7345K

0.0027

R622
220K

R607

C611

R158

C137

3.9K

220

C609
1/50

R609

1.2K

C625

0.0056

R623
220K

R136

KTA1266 GR

47K

R143

22K

R144

(ML)

0.047

R603

1K

R605

10K

220K

+B

R140

Q109

SWITCHING

82

R142

C138

0.0082
(PP)

C139

0.039(ML)

+B

+B

47K

Q111

KTC3203 Y

4.7

R145

L103

330µH

1

2

Q110

KRC104 M

BIAS

R141

4.7K

BIAS

C140

47/25

+B

+B

3

+B

VIDEO SIGNAL
RECORD SIGNAL

CD SIGNAL
MIC SIGNAL

TUN_SM

D_GND
T_BIAS

T_T1/T2

REC/PLAY

SMUTE

SPA_SIG

A_GND

M_+12V

+B

-B
–20dB

M_GND

SW_5V

+B

UN_SW 5V

+B

SP_DET
SP_RLY

TUN_SM

CLK

TUN_R

(A_GND)GND

TUN_L

A+10V

+B

(D_GND)GND

R692

C690
390P

C691
390P

33K

R693

33K

DS1SS133

DS1SS133

R690

6.8K

R691

6.8K

CLK

–15V

VF1
–VF
VF2

P_IN

DO

CE

D690

D691

CE
DO

DI

DI

C693

0.001

CNP701

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18

19
20
21

22
23
24
25
26
27
28
29
30

31
32

SPAN SELECTOR

10 kHz/100 kHz

9 kHz/50 kHz

22
23
24
25
26
27

P25 11 - H

28
29

30
31

L-CH

VIDEO/AUX

R-CH

CHASSIS

FFC701

1

32

SW601

TO TUNER SECTION

JK690

IN

CNS701

P27 12 - C

TO DISPLAY PWB

7

8 9 10 11 12

Figure 21 SCHEMATIC DIAGRAM (2/11)

– 21 –

CD-BK250W/CD-BK2600W/CD-BK270W

3

A

L-CH

+

CH1

–

5

C938
820P

C936

15P

R936

820

C934

4.7/50

R940

1K

4 3 2

100/50

C940

1

R934

1K

C932

0.001
R932

56K

R930
100K

C930

R938

56K

0.22/50

B

C

R942

22K

R944

100

C948

0.022

C942

6

0.22

0.1(1W)

R954

0.22

R946

R950

1.5K
KTC3199 GR

D

POWER AMP.

CH1

OUT

7

0.22

R948

(2W)

R952

1K

Q902

+B

+B

IC901

STK4029S

+VCC

8

(2W)

C946

10/50

D912

DS1SS133

C945
10/50

–VCC

CH2

9

R947

0.22(2W)

2

Q907

KRC107 M

OUT

R945

R949

0.1(1W)

C947

0.022
R953

1.5K

R931

1

3

0.22(2W)

R951
1K

100K

C931

0.22/50

121110

C941

100/50

D911

DS1SS133

R933

+B

2

C969

3.3/50

R-CH

CH2

13

100

R943

Q903

KTC3199 GR

56K

1

KRA107 M

+

–

820

R937

C935

4.7/50

DS1SS133

C933

0.001

3

Q908

14

R939

D913

C939
820P

56K

Q905

15

15P

C937

1K

R941

KTC3199 GR R956

KTC3199 GR

R935

+B

1K

Q904

C949

47/50

56K

R955

56K

R957

56K

C953

0.047
(ML)

R959

R988
R981
R986
R982

D914

C952

0.047
(ML)

R958

4.7

4.7

DS1SS13

Q914

KTC3199

+B

E

F

G

1

2

4

3
6

20

7
9

17
18

P20 1 - C, D

19

TO MAIN SECTION

13

8

21

5
14
10

12
11

A_+B

CD_+B

L-CH

GND(A_GND)

R-CH
P_IN

GND(CD_GND)
A+10V

–VP
VF2

VF1
SP_RLY
M_+12V
–15V
GND(D_GND)

SW_5V

GND(A_GND)

SP_DET
GND(M_GND)

22K

C923

C920

47/25

C916

47/25

IC902

KTC2026

R908

22/50

560

ZD905

DZ2.4BSB

3 2 1

IC904

KIA7805AP

3 2 1

D916

DS1SS133

IC904

KIA7805AP

C915

IC903

KIA7810AP

C921

0.1

(ML)

0.022

C918

0.1

(ML)

ZD904

DZ130BSB

R903

3.3K

R901

R902

C907

22K

22K

2200/35

C903

2200/63

C904

2200/63

C970

6800/16

+B2

BI902

CNS902

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

10

10

-B

+B

+B

+B

+B

D917

+B

+B

+B

+B

DS1N404S

-B

R909

IC903

KIA7810AP

VOLTAGE

REGULATOR

+B

CONSTANT VOLTAGE REGULATOR

+B

-B

+B

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.

1

23456

Figure 22 SCHEMATIC DIAGRAM (3/11)

– 22 –

CD-BK250W/CD-BK2600W/CD-BK270W

C952

0.047
(ML)

R958

4.7

FM SIGNAL

+B

R988 680
R981 680
R986 680
R982 680

RL914

RELAY

D914

DS1SS133

Q914

KTC3199 GR

R973

+B

47K

R968

4.7K

R967

4.7K

L1_OUT

R1_OUT

+B

MAIN PWB-A1 (2/3)

+B

L921

L920

R969

R972

15K

4.7
D915

DS1SS133

C968
10/50

+B

C967

47/50

R971

68K

R970

1K

CNS971

22

+

M

1 1

M901

FAN MOTOR

CNP971

Q906

KTC3203 Y

1

5

FW981

BI903

1
2
3

CNS903

SPEAKER

TERMINAL

CD-BK250W/CD-BK2600W: 6 ohms
CD-BK270W: 8 ohms

CNR1

1
2
3

SP_LCH
SP_RCH

SP_LCH_GND
SP_RCH_GND

SO901

CNP981

1
2
3

4
5

HEADPHONES
PWB-B2

C735
220P

C734

JK701

220P

HEADPHONES

1
2

CR1

3

22/50

CR2

22/50

SURROUND
SPEAKER PWB-G2

SR1
SURROUND
SPEAKER TERMINAL

R-CH

L-CH

CD-BK270W ONLY

SW801

VOLTAGE SELECTOR

230-240 V

220 V

127 V

110 V

TRANSFORMER
PWB-A3

LUG1

LUG2

AC POWER

50/60 Hz

SUPPLY CORD

AC 110/127/220/230-240 V

ZD902

DZ110BSB

47K

Q901

C905

0.1

(ML)

C906

0.1

(ML)

ZD901

R904

2.2K

C901

0.1
(ML)
C902

0.1

(ML)

C910

DZ330BSB

220/50

D908

DS1N404S

F901

T4A L 250V

F902

T4A L 250V

D906

DS1N404S

C909

100/50

F904

T2A L 250V

F903

T2A L 250V

C908

100/50

D907

DS1N404S

T.F.

PT801

POWER

TRANSFORMER

BI902

2

CNS902

1
2
3
4
5
6
7
8
9

10

CNP902

1

1

2

2

3

3

4

4

5

5

6

6
7
8
9

10

R983

7

220K

8

9

10

R978

47

R977

47

D904

12K

R907

DZ6.2BSA

D901

TS6B04GM
D905

DS1N404S

DS1N404S

R984

47K

C913

100/35

ZD903

DS1N404S

DS1N404S

C912

47/50

R906

10

D902

D903

C911

47/50

R905

KTA1274 Y

POWER PWB-A2

7

8 9 10 11 12

Figure 23 SCHEMATIC DIAGRAM (4/11)

– 23 –

CD-BK250W/CD-BK2600W/CD-BK270W

8

C363 0 022

A

C323

0.022

C338 0.001

D301 DS1SS133

CNP301

1

2

C301

0.01

BF301

D302 DS1SS133

CT1

0.01

3

1

2

BAND PASS FILTER

C303

10P(CH)

C304

0.01

C309

0.001

L312 FM RF

C308 4.7P(CH)

D305

DS1SS133

C314

0.0047
C315

R311

R314

22

0.0047

100K

4321

C316

0.022

IC301

C317

AM BAND
COVERAGE fL

5

6

C305

4.7P

(CH)

C310

15P(CH)

VD302

SVC211C

33K

R313

0.001

B

AM

C

D

ANTENNA

1
2

SO302

FM ANTENNA

TERMINAL

E

F

AM ANT.

AM TRACKING fL

T306

AM

OSC.

7

9

8

R302

10

C311
18P

T301 FM OSC.

C312

0.022

R322

R325

47K

R327

33

680

KTC3194 Y

T303

C330

15P

VD301
C335
560P

C334

22P

(CH)

FM FRONT END

C324

3.9P(UJ)

T302
FM IF

Q302

BUFF

SVC348S

R323

68K

IC301

TA7358AP

C306

0.022

VD303

SVC211C

C313

22P

1

3

2

C318
100P

R309

C340

0.001

R336

C307

10/50

10K

CF303

R316

4.7K

C331

0.047
C332

0.022

10K

TP301

C342

0.022

+B

R382

150

C381

12P(CH)

C382

15P(CH)

R365

10K

R358

3.9K

C350 0.022

C397

0.022
R381

10K

222120

X352

4.5 MHz

R375

470

24 23 22 21

AM OSC IN

AM OSC OUT

R351 5.6K

FM IF IN

AM MIX OUT

2

1

T351

AM IF

C389 0.022

C352 10/50

C394

47/25

1/50

C393

VSS

AOUT

IC302

X OUT

X IN

CE

DI

C361 0.022

C362 3.3/50

FM AFC

AM RF IN

REG

3

C392

0.001

C380

10/50

1.5K

R380

19

1

PD

AIN

DO

CL

654321

FM SIGNAL

G

AM SIGNAL

MAIN PWB-A1(3/3)

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.

1

23456

Figure 24 SCHEMATIC DIAGRAM (5/11)

– 24 –

+B

C384

0.001

R374 1K

R373 1K

R372 1K

R378 1K

CD-BK250W/CD-BK2600W/CD-BK270W

2

2

382

150

2

H)

C397

0.022

X352

R375

470

R365

10K

R358

3.9K

24 23 22 21 20

AM OSC OUT

R351 5.6K

FM IF IN

1

T351

C389 0.022

C350 0.022

C352 10/50

C394

R381

10K

C393

222120

VSS

AOUT

IC302

X OUT

4.5 MHz
X IN

CE

C361 0.022

C362 3.3/50

FM AFC

AM OSC IN

AM RF IN

REG

AM MIX OUT

3

2

AM IF

C392

0.001

47/25

C380

10/50

1.5K

R380

1/50

19

18

PD

AIN

DO

CL

DI

TP302

TP

R350

2.7K

C363 0.022

C365 0.022

C366 0.001

C364 2.2/50

19 18 17 16 15 14 13

VSM

FM/AM OUT

AM LOW CUT

AM IF IN

GND

6

5

4

R352

1K

1

3

2

C353 0.022

CF352

C387

0.022

L351

100µH

2.2K

16

15

FM IN

IF

CONT

FM/AM

0.01

C385

14

13

AM IN

FM/AM

987654321

12

SD

MO/ST

R379

17

VDD

C367

1/50

SD

R377

47K

IF IN

ST IND

R376

1110

R386

1K

22K

X351

456 kHz

STEREO

7

C354 0.022

1K

R393

IC302

LC72131

330P

C386

1/50

C368

MPX IN

MPX VCO

FM DET

VCC

98

R353
270

C356

0.001

CF351

C399

0.022

C398

100/10

PLL(TUNER)

R395

47K

R360

4.7K

470K

R357

1K

R356

IF OUT

PHASE

C357

2.2/50

5.6K

R387

C373

0.015

C371

1/50

C374 0.015

27P

1/50

C372

C369

MO/ST

L-CH OUT

R-CH OUT

(FM/AM)

PHASE

121110

C358

3.3K

R355

C370

22P

C355

3.9K

R388

R359

+B

12K

R364

15K

R361

R362

15K

IC303

LA1832S

1/50

1/50

C396

100/10

C395

0.022
R392

270
Q360

KTA1266 GR

1.8K

5.6K

R384

R363

12K

FM IF DET./FM MPX./AM IF

ZD351

DZ5.1BSB

R391

270

R383

5.6K

R385

C388

0.001

5.6K

C391
47/25

+B

Q360: SWITCHING

1

R374 1K

7

R378 1K

R372 1K

R373 1K

+B

GND(A_GND)

TUN_SM

A+10V

30 24 2227 29 26 2423 2531

TUN_R

P21 12 - F

TO MAIN PWB

DIDOCE

TUN_L

GND(D_GND)

CLK

8 9 10 11 12

Figure 25 SCHEMATIC DIAGRAM (6/11)

– 25 –

CD-BK250W/CD-BK2600W/CD-BK270W

9

+

U

A

DISPLAY PWB-B1

B

1K

R747

100K

R749

R746

1K

Q702

C

D

E

F

TAPE MECHANISM
PWB-D

PLAY

-

TAPE

M

MOTOR

+

SOLENOID

G

F. PLAY

SOLENOID

CASSETTE

Q701

FFC702

1

T2 PLAY

1
2
3
4
5
6
7
8
9

10

PH

1

GND

2

T2 RUN

3

+MTR

4

SOL2

5

SOL1

6

F_REC

7

T1 RUN

8

R_REC

9
10

CNS702

10

KTC3199 GR

D710

DS1SS133

R561

10K

R565

33K
R567

68K

R570
12K

C567

0.0068

R573

56K

KTC3199 GR

C561
270P

C562
270P

0.0027

C564

0.0027

DS1SS133

C568

0.0068

R575
470K

R577
150K

R579

15K

D709

DS1SS133

KTC3199 GR

100K

R750

C565

D716

C570

0.022

C571

0.022

Q703

R562
820K

R566
220K

R571
390K

R574

R748

R568
220K

1M

1K

R576

2.2M

R580
180K

100K

R751

R752

33

IC561
KIA4558P
OPE AMP.

2
3

5
6

IC562

KIA4558P

OPE AMP.

2
3

5
6

C712
47/50

FL701

FL DISPLAY

P22

P21

P20

P19

P18

P17

P16

P15

P14

P13

P12

R772
10K

Q706

KTA1273 Y

KTA1271 Y

KTA1271 Y

Q707

Q708

R739

R735

+B

P11

R740

1K

R738

22K

R736

1K

1K

-B

+B

F F F

49

48

444342 4140393837 363534 33 32

47

+B

+B

D561 DS1SS133

C563

2.2/50

D562

C566

DS1SS133

2.2/50

D563

DS1SS133

C573

ZD561

-B

0.022

R753

R754

C569

2.2/50

C707

1/50

1K

D701

DS1SS133

D705

DS1SS133

10K

R760

10K

R759

10K

R758

10K

R756

10K

+B

+B

R569
100K

R572
100K

+B

R578
100K

R770

R741

1K

10K

C706
47/50

+B

R755

1K

+B
+B

+B

R563

270

-B

4
1

8
7

-B

4
1

8
7

C572

0.022

DZ6.2BSB

P09

P10

1K

P08

31 30 29 28 27 26 25 24 23 16 15 14 13

81

82

P10

P9

80
79

VLOAD

78

P11

77

P12

76

P13

75

P14

74

P15

73

P16

72

P17

71

P18

70

P19/DIST0

69

P20/DIST1

68

P21/DIST2

67

P22/DIST3

66

RDS-READY/ESS_DO

65

RDS-RDCL/ESS_DI

64

RDS-RDDA/ESS_STB

63

RDS-RST/ESS_ACK

62

NO USE / MPEG_POW

61

KARAOKE LATCH

60

NO USE

59

DISTOUT/SW OUT

58

LCK 0

57

MIC SW

56

FPB

55

FPA
PLAY SW_B

54

NO USE

53

CD CLAMP

52

SW

51

T2

SPK_DET

T1

RUN

50 49 48 47 46 45

RUN

R734

R731

1K

10K

R733

R761

+B

M12V
R777

10K

+B

R778
10K

+B

R779
10K

P07

8483

SP_RLY

+B

R732
1K

1K

10K

P06

85

P6P7P8

AC RLY_CONT

P05

P04

P03

P02

P01

89

87

88

86

P1P2P3P4P5

IC701

IX0427AW

SYSTEM

MICROCOMP

T_SOL_A

T_MOTOR

T_SOL_B

TIMER LED

VDD

44 43 42 41 40 39 38

1K

2.2K

R727

R729

2.2K

R728

R726

LED701

+B

90

2.2K

G11

91

G11

SMUTE

+B

G10

92

G10

VSS

R724

G08

G09

93

G9

G8

REMOCON

JOG 0

1K

+B

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.

1

23456

Figure 26 SCHEMATIC DIAGRAM (7/11)

– 26 –

AY

P09

P08

P07

P06

P05

P04

P03

P02

P01

G08

G09

G10

31 30 29 28 27 26 25 24 23 16 15 14 13 12 11 10

8483

81

85

82

P6P7P8

P9
VLOAD
P11
P12
P13
P14
P15
P16
P17
P18
P19/DIST0
P20/DIST1
P21/DIST2
P22/DIST3
RDS-READY/ESS_DO
RDS-RDCL/ESS_DI
RDS-RDDA/ESS_STB
RDS-RST/ESS_ACK
NO USE / MPEG_POW
KARAOKE LATCH
NO USE
DISTOUT/SW OUT
LCK 0
MIC SW
FPB
FPA
PLAY SW_B
NO USE

CD CLAMP
SW

AC RLY_CONT

SP_RLY

SPK_DET

50 49 48 47 46 45

+B

34

R732
1K

1K

R733

R761

10K

G11

89

87

88

91

92

9493

90

86

P1P2P3P4P5

G9G8G7G6G5G4G3G2G1

G11

G10

IC701

IX0427AW

SYSTEM

MICROCOMPUTER

REMOCON

VSS

SMUTE

T_SOL_A

T_MOTOR

T_SOL_B

R727

JOG 0

1K

2.2K

R724

2.2K

R726

TIMER LED

VDD

44 43 42 41 40 39 38 37 36 35 34 33 32 31

1K

R729

2.2K

R728

LED701

+B

+B

+B

+B

G07

JOG 1

R766

10K

R767

10K

95

R721

+B

+B

G06

P_IN

96

AVref

1K

R768

G03

G04

G05

9876

98

97

DSA_STB

T-BIAS

T_T1/T2
REC/PLAY
RES OUT

RESET

CD CLK

CD DO

O/C SW/

DSA DATA

TUN SM
DSA_ACK
SPEANA2

AVDD

KEY 0

1K

R720

+B

10K

99

-20dB

WRQ

Vpp/IC

SPAN

CD DI

CD CE

AVSS

R719

G02

100

DRF

XT2

VDD

CLK

KEY 1

1K

X2
X1

CE

DI

DO

G01

VDD

KEY 2

R718

1
2
3
4
5
6
7
8
9

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

1K

SPEANA1
SPEANA0

FFF

321

C701

1/50

C703

+B

R773 1K

R702 1K
R703 1K
R704 1K
R705 1K
R706 1K
R707 1K
R708 1K

XL700

4.194304 MHz
R769 1K

R709 1K
R710 1K
R711 1K
R712 1K
R713 1K
R714 1K
R715 1K
R716 1K

R717 1K

+B

0.022

C704

15P

C705

18P

C702

220/10

+B

+B

+B

+B

R765

4.7K

P29 12 - B

TO CD SERVO PWB

CNP8

DRF

CD DI

CD CE

CD DO

WRQ(DSP)

R725

+B

+B

CD CLK

RES OUT

1K

123456789

CNS8

123456789

BI701

CLAMP SW

DISC_NO SW

10K

R774

+B

R771

10K

RD18

680

SW720

CD

RD13

680

SW714

DIMMER

RD01

680

SW701

ON/

STAND-BY

L701

100µH

RD19

SW721

RD14

SW715

X-BASS

SW702
CLOCK

CD-BK250W/CD-BK2600W/CD-BK270W

MIC IN

KARAOKE LATCH

SPAN

SW OUT

ESS_ACK

ESS_STB

ESS_DI

ESS_DQ

TUN SM

CE

DO

DI

CLK

D_GND

T_BIAS

T_T1/T2

REC/PLAY

SMUTE

SPA_SIG

A_GND
M_+12V

+B

–15V

-B

–20dB

M_GND

SW_5V

+B

UN_SW 5V

SP_DET
SP_RLY

VF1

–VP
VF2
P-IN

+B

+B

+B

18K

RD28

33K

SW730
TUNING

UP

RD11

33K

RD12
100K

SW712

DISC
SKIP

RD29
100K

SW731
VIDEO

D714

DS1SS133

R783
100

C717

47/50

SW732
TUNER

SW713
OPEN/

CLOSE

820

TAPE

820

RD02

820

+B+B

5V BACK UP

C715

RD20

1K

SW722

TUNING

DOWN

RD15

1.8K

SW716

EQUALIZER

SW703

TIMER

+B

-B-B

R781

47K

0.01

RD03

1K

+B

RD21

1.5K

SW723
MEMORY/

SET

RD30

5.6K

VOLUME

RD04

1.5K

+B

-B

+B

RESET

Q709

KRC102 M

2

1

RD22

2.2K

SW724

FAST

REWIND

RD16

3.9K

SW717

UP

RD05

2.2K

+B

D713

DS1SS133

3

D715

DS1SS133

RD23

2.7K

SW725

FAST

FORWARD

RD17

180K

SW718

VOLUME

DOWN

RD06

D711

DS1SS133

3.3/50

R782
100K

2.7K

+B

C714

RD24

3.9K

SW726

PLAY

SW719

REVERSE

MODE

RD07

3.9K

+B

RD25

5.6K

SW727

STOP

RD08

5.6K

D712

DS1SS133

RD26

SW728

REVERSE

PLAY

RD09

10K

321

10K

RX701
REMOTE
SENSOR

C716

0.022

SW729

REC/

PAUSE

RD10

RD27

18K

1
2
3
4
5
6
7
8
9

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

CNS701

FFC701

1

32

CNP701

P21 12 - D

TO MAIN PWB

7

8 9 10 11 12

Figure 27 SCHEMATIC DIAGRAM (8/11)

– 27 –

CD-BK250W/CD-BK2600W/CD-BK270W

2

9

M

S

O

F

S

C

O

S

D

I

1K

A

PICKUP UNIT

B

C

D

E

F

TR+

FO+
FO–

TR–

CD MOTOR PWB-F

M1

SPINDLE

MOTOR

M2

SLED

MOTOR

SW4

PICKUP IN

M

M

GND

CD SERVO PWB-C

CD SIGNAL

R7

47

7
6
5
4
3
2
1

1
2
3
4
5
6
7
8

CNS3A

6
5
4
3
2
1

CNS1A

7
6
5
4
3
2
1

CNS2A

1
2
3
4
5
6
7
8

6
5
4
3
2
1

VCC
VREF
E
A
B
F

C

CNP1

TR–
TR+
FO+
FO–
GND
PD
VR
LD

CNP2

SP+
SP–
SL+
SL–
PUIN
GND

CNP3

R4

12K

R6

33K

R5

12K

R3

33K

C1

R1

12K

47/25

100/10

C40

R2

C38

0.01

C39

MUTE

220/6.3

12K

C2

0.01

–

+

VREF

–

+

R65

3.3K

R44

VCC

STANDBY

++–

–

+

–

+

–

+

12K

+

R9

Q1

KTA1266 GR

LASER DRIVER

SLDO

SL–

SL+

–

–

FOCUS/TRACKING/
SPIN/SLED DRIVER

3.3

C3

47/25

C49

C4

0.001

IC2

M63001FP

47/25

101112131415161718192021

R10

27K

TP3

9

(CH)

GND

8

C6

0.1

C7

100P

C50
22P

C9

100/10

TR–

7

TP2

TR+

6

100P

0.047(ML)

R12

330

0.0047

C12

FO–

5

C5

10K

R11

1
2
3
4

C8

5
6

7

TP1

8
9

10

C10

11

10/50

12
13

C11

14

0.22/50
15

4

16
17
18
19
20

1K

R13

2

1

FO+

FD

4321

R42

LDD

807

SLCO
SLCI
EFM
RF
RFV
RSV
FIN1
FIN2
TIN1
TIN2
VRE
REFI
FE
TEC
TE
RFM
JITT
ADAV
ADAV
TDO

FDO

212

1K

R14

1.2K

LDS

PD

R15

TO

VCC

VREF

E
A
B

F

C

TR–
TR+

FO+
FO–

PD
VR

LD

+
–

+
–

CNS1B

7

7

6

6

5

5

4

4

3

3

2

2

1

1

CNS2B

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

CNS3B

1

1

2

2

3

3

4

4

5

5

6

6

G

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.

1

23456

Figure 28 SCHEMATIC DIAGRAM (9/11)

22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

SP–

SP+

SPO

VCC2

VCC3

C41
100/10

M–

– 28 –

LD_

LD_M–

VCC4

M+

CD-BK250W/CD-BK2600W/CD-BK270W

TR

C5

0.047(ML)
10K

R12
330

C8

0.0047

0.22/50

TP1

10/50

C11

4

C10

R13

R11

1K

1
2
3
4

5

6

7

8

9
10
11
12
13
14
15
16
17
18
19
20

.1

6

P

)

9
/10

TP2

C12

100P

2

1

+

FO+

FO–

5

6

37 38 39 40 41 42

M–

10

FD

4321

LD_M–

VCC4

M+

3

C34
100P

C33

100P

C32

100P

C30

100P

C28

100P

C27

0.022

C36

0.1

C37

R42

1.2K
R41 12K

LDS

LDD

80797877 767574737271 706968676665 64636261

SLCO

FR

SLCIST
EFMIN
RF
RFVDD
RSVSS
FIN1 A
FIN2 B
TIN1 E
TIN2 F
VREF
REFI
FE
TEC
TE
RFMON
JITTC
ADAVDD
ADAVSS
TDO

FDO

R14

VVDD

5

GPDAC

SLDO

SPDO

21222324 252627282930 313233343536 37383940

R17

1K

1K

R15

1K

R16

TO

LD_M+

C35

2.2/50

0.047

680

R40

R39

VVSS

PDO2

PDO1

PCKIST

8

7

IC1

LC78645E

CD SERVO

6

DEFECT

SBCK/FG

CONT5

CONT4

1K

1K

R18

R20
10K

R46

D2

DS1SS133

3

1

(ML)

680

VSS

CONT2

CONT3

MONI1

FSEQ

V/*P

470

2

Q3

KRC102 M

R49

DRF

*RES

VDD5

MONI4

MONI3

MONI2

C13

R45
470

D1
DS1SS133

1

DI

DO

*WRQ

LRSY

ASDFIN

ASDACK

ASLRCK
16MOUT

EFLG

XVSS

FSX/16MIN

XOUT
XVDD

RVDD

RCHO

RVSS

LVSS

LCHO

VDD

VSS

MONI5

0.022

CL

C2F

XIN

DOUT

9

60

CE

59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41

TEST

1K

R31

12

DATA
DATACK

R43

C14

100/10

220

R38 1K
R37 1K
R36 1K
R35 1K
R34 1K
R33 1K
R32 1K

R29

2.2K
R28

2.2K

11

10

XL1

33.8688 MHz

ZD1 DZ3.3BSB

LVDD

C44

0.001

C16

330/6.3

C23

10/50

R24

2.2K

R26
10K

R22

100

C24

10/50

R25

2.2K
C26

0.0015

R27

10K

C25

0.0015

WRQ

CD RES

CLAMP SW

O/C, DISC NO

C51

0.022

L1

0.82µH

C48

0.022

Q2

KTC3203 Y

R80

3.3

R47
100

C18

100/10

ZD2

DZ3.9BSB

R30

8.2K
1

1

2

2

3

R19
15K

CNP4

3

4

4

5

5

6

6

CNS4

R-CH

AGND

L-CH

DGND

Q2: CONSTANT VOLTAGE

220

R23

BI4

OPEN/CLOSE

1
2
3
4
5
6

DRF

CE

DO

DI

CL

CNP8

+5V

+5V

CNP7

SW1

M

UP DOWN

1
2
3
4
5
6
7
8
9

1
2
3
4
5

6

SW2

CLAMP

SW3

DISC NO.

M3 T/T

LOADING

CNS8

P27 9 - A

FROM DISPLAY PWB

CNS601

P20 1 - B

FROM MAIN PWB

CD LOADING

MOTOR PWB-E

• The numbers 1 to 12 are waveform numbers shown in page 40.

7

8 9 10 11 12

Figure 29 SCHEMATIC DIAGRAM (10/11)

– 29 –

CD-BK250W/CD-BK2600W/CD-BK270W

MIC PWB-G1

A

CK41

DK1

DS1SS133

PINK1

DK2

DS1SS133

GND

CHASSIS

B

JK1
MIC

C

100/16

CK1 0.01
RK4 10K

RK7

1K

RK8 5.6K

RK3
56K

RK5

1K

VRK1
20K(B)

MIC

VOLUME

RK2 56K

CK2

0.47

CK6 0.1
CK7 0.47
CK8 4.7/50

CK9 2.2/50
CK10 0.1
CK11 0.1

CK13

0.0047

CK14 0.001

CK15 0.068

CK16 0.22
CK17 220/10

CK12

2.2/50

ICK1

M65856SP

RK1
10K

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19

20
21

MIC AMP.

MICSW
MCLKCONT
VACL
MIC1 IN

ALC1
MIC1NF IN
MIC1 OUT
MIC1VOL IN
MIC2 IN
ALC2
MIC2NF IN
MIC2 OUT
MIC2VOL IN
MICOUT
LPF1 IN1
LPF2 IN2
LPF1 OUT

AD INTOUT
AD INTIN
ADCONT
REF

SOURCEOUT

KEYCONIN

DATA

CLOCK

LATCH

VCF IL

L OUT

R OUT

VOL IN

LPF2OUT

LPF2IN2
LPF2IN1

DAINTOUT

DAINTIN

DACONT

GND

R IN

VCC

PS2
PS1

L IN

42
41
40
39
38
37
36
35
34
33
32
31
30

29

28

27
26
25

24
23
22

RK11 1K
RK10 1K

RK9 1K

CK31 0.15

CK29 2.2/50
CK30 2.2/50

CK26 2.2/50
CK25 2.2/50
CK24 2.2/50

CK23 0.001
CK22 0.0047
CK21 0.068

CK20 0.22

CK35 47P
CK34 47P
CK33 47P

CK19

0.022

CK42

0.022

RK49

10K

CK43
47/25

RK47

QK1

KTC3203Y

8.2K

RK50

RK12

100

10K

10K

RK48

ZDK1

MTZJ5.6B

CK53
47/50

RK13

1.2K

CK51

CK52

RK45

6.8K

1/50

1/50
RK44

6.8K

CK48 220P

RK46

18K

CK50
100P

CK49
100P

RK43

18K

CK47

220P

ICK2

KIA4558P

OPE PMP.

CK44
47/25

MIC SIGNAL

8

RK14

100

RK15

100

ICK2

KIA4558P

4

CK46

2.2/50

1

CK45

2.2/50

7

CNPK1

1
2
3
4
5
6
7

CNSK1

8

FROM

9

MAIN PWB

P21 8-A

10

RK42 10K

RK38

100

CK72

100/16

RK41 10K

RK37

RK39

1k

MIC IN(L)

RK36

390

RK40

MIC OUT(L)

A_GND

A_+10V
MIC IN(R)
MIC OUT(R)

1k

DATA

CLOCK

MIC LATCH
MIC I

390

2

3

5

6

• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.

D

Figure 30 SCHEMATIC DIAGRAM (11/11)

MIC PWB-G1

E

CK19
CK42

CK20

CK21

CK22

JK1
MIC

CK17

CK23

F

G

H

VRK1

MIC VOLUME

CK16
CK15

2021

CK14
CK13

CK11

RK50

RK48

CK51

RK45
CK50
CK48
RK46

CK10

CK12

CK9

CK25CK24

ICK1

CK8

RK7

CK43

4
3
2
1

CK46

10111213141516171819

CK7

RK8

ICK2

RK42

RK5

CK44

RK41

CK6

RK4

5
6
7
8

CK45

CK26

CK2

CK1

CK53

RK47

RK43

RK1

RK49

CK49

424140393837363534333231302928272625242322

123456789

CK52

RK44

CK47

CK30

CK41

CK31

CK33

RK2
RK3

RK39

CK34

CK35

QK1

B
C
E

RK40

RK38
RK36
RK37

CK29

CK3
DK2
DK1

ZDK1

CK72

RK12

RK14

RK11
RK10
RK9

RK13

RK15

PINK1

CNPK1

10

9
8
7
6
5
4
3
2
1

P33 7 - A

CNSK1

FROM MAIN PWB

1

23456

Figure 30 WIRING SIDE OF P.W.BOARD (1/8)

– 30 –

TRANSFORMER PWB-A3

CD-BK250W/CD-BK2600W/CD-BK270W

AC POWER

SUPPLY CORD

AC 110/127/220/230-240 V

50/60 Hz

230-240 V

110 V

SW801

VOLTAGE SELECTOR

220 V

127 V

LUG1

230-240 V

220 V

LUG2

127 V

110 V

T.F

POWER PWB-A2

C911

R904

R978

R977

ZD901

7

R907

C913

Q901

BC E

C910

PT801

POWER TRANSFORMER

F904

T2A L 250V

F901

C901

T4A L 250V

F902

T4A L 250V

D901

C902

D908
D907

C912

ZD903

R905
R906

C909

D906

C908

R983

CNP902

CNS902

P33 11 - F

FROM MAIN PWB

R984

2345678910

ZD902

1

C906

T2A L 250V

D904

D905

F903

D903

C905

D902

8 9 10 11 12

Figure 31 WIRING SIDE OF P.W.BOARD (2/8)

– 31 –

CD-BK250W/CD-BK2600W/CD-BK270W

2

C

9

C

A

C301

SO302

FM
ANTENNA
TERMINAL

FM

R-CH

L-CH

M901

FAN MOTOR

SO901

SPEAKER

TERMINAL

75 OHMS

GND

AM LOOP
ANTENNA

JK690

VIDEO AUX IN

R-CH

L-CH

1
2

SW601

SPAN

SELECTOR

10 kHz/100 kHz

9 kHz/50 kHz

CNS971

RD

1
2

BR

CNP301

1
2

CT1

C693

D301

D302

D690
D691

BF301

C323

L920

R693

C338

C306

C691

C304

132

C330

C331

R691

R692

C968

R971

R972

L921

B

C

D

E

F

CD-BK250W/CDBK2600W: 6 ohms
CD-BK270W: 8 ohms

Q603

R690

D915

T303

9
8
7
6
5
4
3
2
1

C303

C394

R381

C340

R620
R617

C690

ECB

R970

C384

C382
C381

C307

R314

IC301

C305

C315

C317

C640

BCE

C637

R967

R373

X352

R374

123456789

R379

22 21 2019 18 17 16 15 1413 12

C392

C397

C380

C393

R325

B

Q302

R302

R322

C310

T302

D305

C308

L312

R313

C314

TP301

R316

C334

R336

R323

C332
C335

T306

VD301

R615

R605

R613

R619

Q906

CNP971

2

1

C967

E
C

Q914

R973

B

R968

C953

R959

R380

CE

R327
C311

C312

C309

C316

Q601

B
C
E

R969

R372

IC302

L351

R375

R309

1

VD302

C362

C635

B
C
E

R951

C935

LG1

T301

C324

CF303

23

R311

R365

Q903

R931

R941
R955

C318

VD303

C342

R611

R953

R935

C361

R621

R378

10 11

C387

R377

C385

C313

C363

C639

C947

C931

R388

R359

R376

R387

R360

C391

R384

R386

C386

Q360

R393

B
C
E

T351

R351

C366

C365

Q602

BCE

C636

3
2
1

Q907

C945

C941

C353

R957

C389

1
2
3

R943

R383

C398

CF351

C354

C399

IC303

R612

R614

Q908

D913

R382

3
2

CF352

1

C352

C350

R352

123456789

24 23 2221 20 19 18 17 1615 14 13

C367

R358

R350

C364

R610

C969

D911

R933
C933
R937
R939
C937
C939

R385

R392

10 11 12

C369

TP302

R357

Q604

ECB

C638

Q904

E
C
B

C946

C940

IC901

101112131415

C396

R391

R353

R395

X351

R356

C395

ZD351

C370

C388

R908

C610

R60

R601

Q902

R903

C91

B

IC

C356

C357

R355

C358

C355

R363

C371

R361

R364

C373

R362

C374

C372

C368

R616

R604

D912

R618

Q905

B
C

C949

E

R930

R944

C942

R942

R952

R901

R954

C948

R902

B
C
E

C930

C934

R932
C932
R936

R938
C936
R934
C938

R956

R940

123456789

BI903

1

SR1

SURROUND

SPEAKER

TERMINAL

R-CH

G

L-CH

R-CH

L-CH

H

SURROUN SPEAKER PWB-G2

CD-BK270W ONLY

1

CR1

CR2

CNR1

1
2
3

1
2
3

CNS903

BL
BR
WH

23456

3

D914

RL914

R949

R945

R947

R948

R946

R950

C952

R958

C903

Figure 32 WIRING SIDE OF P.W.BOARD (3/8)

– 32 –

P30 5 - G

TO MIC PWB

CNPK1

CD-BK250W/CD-BK2600W/CD-BK270W

D912

02

CNSK1

12345678910

RD

GY

WH

GYWHGYWHGYWHGY

CNS601

P36 5 - A

TO CD SERVO PWB

CNP7

123456

GYWHGYWHGY

RD

MAIN PWB-A1

COLOR TABLE

BR

C616

C608

C606

R606

C610

C601

R602

C609

R603

R601

10

1

B
C

Q902

E

R908

R903

C915

R909

C916

IC902

C903

C612

123456789

24 23 2221 20 19 18 17 1615 14 13

C607

C603

C613

C615

R607

BIK1

3579

10

2468

ZD904

C920

C918

IC903

ZD905

C620

C618

C614

C622

10 11 12

1

CNP701

D916

C921

IC904

123123BCE

1

C624

C623

C621

GYWHGYWHGY

26 28 30 32

IC601

C605

C611

C617

C619

11

13 15 17 19 21 23 25 27 29 31

12 14 16 18 20 22 24

C904

R608
C626

R622

BI601

R623

D917

C923

RD

R609
C625

R124
R120

6

C116
R118

R982
R986

FFC701

C120
R122

R136

C114

1

R138

C118

BCE

Q108

R132

R126

C112

CNP101

321

C101

C102

Q114

C907

C122

R149

C132

C121

C108
C110

R102

123

Q113

Q106

1
2
3

C128

R114

E
C
B

R110

C126

C134

R158
R139

R134

C133

C130

12
11

R130

10

R128

9
8

C124

7
6
5
4
3
2
1

R116

C106

R113

E
C

C105

B

Q105

R107

R108

R109

R148

C141

R147

C136

R146

CNS701

P35 12 - A

TO DISPLAY PWB

C135

IC101

7

1

E
C
B

C970

R101

C107

C138

Q110

13
14
15
16
17
18
19
20
21
22
23
24

Q112

23

R131
R135

C131

C104

BI102

C103

Q107

BCE

C129
R133

C127

C125

R127
R129
C123
R125

C111

R117

C109

R115

R112

C139

1

ECB

ECB

ECB

ECB

Q103

R145

L103

C140

R141

R981

E

R988

R137

C119

C150

R119

ECB

R140

CB

Q109

FW981

C113

5

C115

Q104

Q102

Q101

Q111

1

R121

R106

R104

R103

BI902

32

R123

10

1

R111
R105

C137
R144
R143

C117

R142

GY
WH
GY
WH
GY
WH
GY
WH
GY
RD

RD(R)

OR

YL

GR

BL
VL

GY

WH(W)

BK
PK

7

WH
BK
PK
BK
WH
YL
BL

1

BI102

P37 10 - E

FROM

TAPE 1

PLAYBACK HEAD

CNS902

10

9
8
7
6
5
4
3
2
1

BROWN

RED
ORANGE
YELLOW

GREEN

BLUE

VIOLET

GRAY

WHITE

BLACK

PINK

CNS102

WH

1

BK

2

PK

3

WH

4

GR

5

BL

6

P37 12 - E

TO TAPE 2 RECORD/

PLAYBACK HEAD

P31 9 - H

CNP902

TO POWER PWB

5
4
3
2
1

CNP981

HEADPHONES PWB-B2

C734

C735

JK701

HEADPHONES

7

8 9 10 11 12

Figure 33 WIRING SIDE OF P.W.BOARD (4/8)

– 33 –

CD-BK250W/CD-BK2600W/CD-BK270W

L

F

7
7
7

A

DISPLAY PWB-B1

1 2 3 6 7 8 910111213141516

B

C

COLOR TABLE

RD(R)

D

WH(W)

E

CNP8

P36 4 - A

TO CD SERVO PWB

BROWN

BR

ORANGE

OR

YELLOW

YL

GREEN

GR

BLUE

BL

VIOLET

VL

GRAY

GY

WHITE
BLACK

BK
PK

CNS8

RED

PINK

Q703

B
C
E

C701

C702

5
6
7
8

5
6

R580

7
8

C573

R567
R565

R561

R566

R578

C569

R575

9

1

C565

R570

R573

C572

C568

C567

BI701

C562

R562

R574

R563

4
3
2
1

4
3
2
1

IC562

R571
C564

IC561

D563

WH

9

GY

8

WH

7

GY

6

WH

5

GY

4

WH

3

GY

2

RD

1

R568

C561

D716

R576

SW713

OPEN/

CLOSE

Q702

B

C

E

RX701

321

D562

R577

C571

ZD561

R572

Q701

C716

C570

R569

B
C
E

D713

C717

C563

D714

R579

R783

C566

D561

D712

SW717

VOLUME UP

R746

C715

R747

R748

Q709

RD30

R749

1
2
3

C714

R750

R751

R782

D715

D711

R781

L701

RD08

R708

RD07

R704

RD06

SW731

VIDEO

R702

R703

R
R
R

X

SW715

X-BASS

Q706

E
C
B

C712

R779

E
C
B

Q708

CNS702

1

357

2468910

D710

R777

R778

Q707

E
C
B

VOLUME DOWN

SW718

D709

RD16

RD15

SW716

EQUALIZER

RD1

RD09

RD12

F

SW712

DISC
SKIP

RD11

RD10

G

1

P37 9 - A

TO TAPE MECHANISM PWB

10

FFC702

H

1

23456

Figure 34 WIRING SIDE OF P.W.BOARD (5/8)

– 34 –

CD-BK250W/CD-BK2600W/CD-BK270W

P33 9 -H

TO MAIN PWB

CNP701

FFC701

23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 47 48 49

FL701

81

80

R705
R706
R707

XL700

R701

R709

C703

C704

R710

RD05

SW721

TAPE

C705

100

1

R711

R714
R715

R712

75

85

90

95

5

70

65

IC701

10

15

R769

RD04

60

55
45

30

25

SW732
TUNER

40

35

31

20

D701

D705

51

50

R717

R713

R716

R718

R719

SW720

CD

R720

R724

R741
R755

R726

R753

R754

R727

1

1357911131517192123

24681012141618202224

C707

C706

LED701

R752

R729

R761

R734

R735

R771

R721

R733

R728

R774

R739
R738
R736

R725

R740

CNS701

R765

25 27 29 31

26 28 30 32

R760

R756
R759
R758

R773

SW701

ON/STAND-BY

SW714

DIMMER

32

RD14

SW725

FORWARD

FAST

SW726

PLAY

RD17

RD03

RD29

SW727

STOP

RD24RD23

SW719

REVERSE MODE

RD19

RD27

RD22

SW729

REC/PAUSE

RD18

RD28

REVERSE PLAY

RD20

RD21

R767

R766

R768

SW728

SW724

FAST REWIND

MEMORY/SET

SW723

RD26

RD25

R770

R772

RD01

R731

SW730

TUNING UP

SW722

TUNING DOWN

R732

RD13

CLOCK

RD02

SW702

SW703
TIMER

7

8 9 10 11 12

Figure 35 WIRING SIDE OF P.W.BOARD (6/8)

– 35 –

CD-BK250W/CD-BK2600W/CD-BK270W

P33 9 - B

FROM MAIN PWB

3

CNS11

CD SERVO PWB-C

P34 1 - C

FROM DISPLAY PWB

CNS703

A

C38

8
7
6
5
4
3

B

2
1

7

C2

8

7
6
5
4

C40

R44

3
2
1

C

5

D

CNP2

ECB

Q1

C5

R11

C1

C7

R12

C8

CNP1

R49

C39

21

IC2

25 30 35 40

22

C41

R7

C49

C4

R5

R9

R10

R65

5101520

CNP3

R42

R4

C3

C50

42

R38

1

R37

C37

R41

R2

R36

C36

R40

4

12

CNP8

C6

R1

3

C32

R39

21

R6

C33

R3

3

C34

C27

4

80

R35

C35

1

567

R34

C30

C9

CNP4

65

R29

75

5

4

89

70

10

C12

3

R33

C28

R31

R28

61

65

IC1

15

20

C10

2165

4

12

56

R13

C42

R14

ZD1

R43

41

40

C13

CNP7

XL1

R15

R46

3

R16

R22

C16

R45

R23

R47

C44

C14

R17

123

D2
D1

R80

BCE

L1

R27

R25

C24

C26

C23

R24
R26
C25

Q3

ZD2

R20

R18

R30

Q2

R19

C18

C48

12
11

10

9

6

C51

R32

60

55

50

45

35

30

25

21

C11

E

F

CNS1A

1
2
3
4
5
6
7

1
2

G

3
4
5
6
7
8

RD

WH

BL

WH

BL

WH

BL

RD

WH

GY
WH
GY
WH
GY

WH

4 2 1

PICKUP UNIT(306)

CNS1B

1
2
3
4
5
6
7

1
2
3
4
5
6
7
8

CNS2B

8

17

1

CNS3A

CNS3B

-

6

GR

WH

WH

6

6

SW4

PICKUP IN

+

SPINDLE MOTOR

GR

12345

WH

12345

12345

RD

-

M1

CD MOTOR
PWB-G

+

M2

SLED MOTOR

H

• The numbers 1 to 12 are waveform numbers shown in page 40.

1

23456

Figure 36 WIRING SIDE OF P.W.BOARD (7/8)

– 36 –

TAPE MECHANISM
ASSEMBLY

P34 4 - H

TO DISPLAY PWB

CNS702

CD-BK250W/CD-BK2600W/CD-BK270W

SW

SOLENOID

PH

FFC702

1

3

1

2

5679

4

810

10

SW

2

1

+

-

TAPE 1

PLAYBACK HEAD

WHWHPK

BK

TAPE MECHANISM PWB-F

SOLENOID

TAPE

MOTOR

RECORD/PLAYBACK/ERASE HEAD

TAPE 2

SWSW

BK

WH

SW3

DISC

NUMBER

456

WH

BI4

BK

WH

123

RD

CNS4

16

+

M3

T/T UP/DOWN

MOTOR

GR

BK

PK

23

1

CNP101

P33 11 - E

TO MAIN PWB

CD LOADING MOTOR
PWB-E

–

SW1

OPEN/

CLOSE

SW2

CLAMP

654321

CNS102

P33 11 - D

TO MAIN PWB

COLOR TABLE

BROWN

BR

RD(R)

OR

YL

GR

BL
VL

GY

WH(W)

BK
PK

RED

ORANGE

YELLOW

GREEN

BLUE

VIOLET

GRAY
WHITE
BLACK

PINK

7

8 9 10 11 12

Figure 37 WIRING SIDE OF P.W.BOARD (8/8)

– 37 –

CD-BK250W/CD-BK2600W/CD-BK270W

VOLTAGE

PIN
NO.

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

PIN
NO.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

1
2
3
4
5
6
7
8
9

VOLTAGE

1.6 V

1.0 V

1.6 V

1.8 V

3.3 V
0 V

1.6 V

1.6 V

1.6 V

1.6 V

1.6 V

1.6 V

1.5 V

1.5 V

1.5 V

1.5 V

0.8 V

3.2 V
0 V

1.6 V

1.6 V

1.6 V

1.6 V
0 V
0 V

3.2 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V

1.6 V
0 V
0 V

3.2 V

3.2 V
0 V

IC101

VOLTAGE

0 V
0 V

0.57 V

2.0 V

0.59 V(AC)

1.32 V
0 V

0.59 V

3.45 V

3.42 V
0 V
0 V

6.92 V

4.13 V
0 V

3.43 V

0.59 V
0 V

2.63 V

0.56 V(AC)

2.00 V

0.57 V
0 V
0 V

IC1

PIN
NO.

41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80

PIN
NO.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22

VOLTAGE

3.7 V

3.7 V
0 V
0 V

3.7 V

3.2 V

3.2 V

3.2 V
0 V
0 V
0 V

3.2 V
0 V
0 V
0 V
0 V
0 V

3.2 V
0 V
0 V
0 V

4.7 V
0 V

4.9 V

4.9 V

4.9 V
0 V

4.9 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V

3.2 V

3.2 V

3.2 V
0 V

3.2 V

IC302

VOLTAGE

2.55 V
0 V
0 V
0 V
0 V

5.16 V
0 V

4.69 V

4.02 V

4.10 V

5.15 V
0 V

5.15 V
0 V
0 V

2.53 V

5.16 V

0.90 V

0.90 V

1.31 V
0 V

2.55 V

PIN
NO.

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

PIN
NO.

PIN
NO.

1
2
3
4
5
6
7
8

1
2
3
4
5
6
7
8
9

1
2
3
4
5
6
7
8
9

IC2

VOLTAGE

1.7 V

1.7 V

1.8 V

2.1 V

2.1 V

2.1 V

2.0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V

2.1 V

2.1 V

1.6 V

4.9 V

3.0 V

1.6 V
0 V
0 V

4.9 V

4.9 V

1.6 V

2.1 V

2.1 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V

4.2 V
0 V

2.1 V

2.1 V

4.9 V

3.7 V

3.7 V

IC301

VOLTAGE

0.91 V

1.64 V

5.40 V

1.62 V
0 V

5.41 V

4.65 V

5.37 V

5.41 V

IC561

VOLTAGE

0.17 V

0.2 V

0.19 V
–13.11 V

0.19 V

0.2 V

0.17 V

6.23 V

PIN
NO.

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

PIN
NO.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

PIN
NO.

1

2

3

4

5

6

7

8

1
2
3
4
5
6
7
8
9

IC303

VOLTAGE

2.09 V

5.17 V

2.09 V

2.08 V
0 V

5.15 V

5.15 V

3.02 V

5.17 V

4.35 V

4.01 V

4.01 V

4.10 V

1.18 V

1.19 V

2.08 V

1.79 V

1.79 V
0 V

0.58 V

2.60 V

2.96 V

5.17 V

3.64 V

IC601

VOLTAGE

0 V
0 V
0 V

5.03 V

5.00 V

5.01 V

5.01 V

5.03 V

5.01 V

5.01 V

5.01 V

5.01 V

5.01 V

5.01 V

5.01 V

5.01 V

5.03 V

5.01 V

5.01 V

5.00 V

5.04 V

5.03 V

10.03 V
0 V

IC562

VOLTAGE

0.25 V

0.3 V

0.3 V
–13.11 V
0 V
0 V
0 V

6.23 V

PIN
NO.

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

PIN
NO.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15

1
2
3
4
5
6
7
8
9

VOLTAGE

4.77 V

4.68 V
0 V
0 V

4.67 V

4.72 V

4.74 V
0 V

5.41 V

4.86 V

2.3 V
2 V
0 V

4.76 V
0 V

4.77 V

4.7 V
0 V

5.36 V

0.16 V
0 V
0 V
0 V
0 V
0 V

2.3 V

0.22 V
0 V
0 V
0 V

5.03 V

5.03 V

5.03 V

4.77 V

5.04 V

2.48 V
0 V
0 V

4.92 V
0 V

5.67 V

12.5 V

12.52 V

12.5 V

3.8 V

4.78 V

4.76 V

4.5 V

5.04 V

5.28 V

IC901

VOLTAGE

0 V
0 V
0 V

50.1 V
–48.8 V
0 V
0 V

51.6 V
–51.5 V
0 V
0 V
–50.1 V
0 V
0 V
0 V

IC701

PIN
NO.

51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99

100

PIN
NO.

PIN
NO.

PIN
NO.

1
2
3

1
2
3

1
2
3

VOLTAGE

5.28 V
0 V
0 V

5.25 V

5.28 V

5.28 V
0 V

0.31 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
–28.82 V
–28.82 V
–28.8 V
–28.88 V
–28.79 V
–28.8 V
–16.2 V
–18.74 V
–26.3 V
–23.77 V
0 V
–21.2 V
–28.9 V
–26.2 V
–26.3 V
–26.3 V
–21.26 V
–28.83 V
0 V
0 V
–18.73 V
0 V
0 V
–26.26 V
–26.26 V
–26.24 V
–26.32 V
–26.3 V
–26.29 V
–26.3 V
–26.3 V
–26.3 V
–26.28 V
–26.3 V

IC902

VOLTAGE

12.56 V

24.75 V

13.17 V

IC903

VOLTAGE

24.70 V
0 V

10.04 V

IC904

VOLTAGE

12.21 V

0.66 V

5.68 V

PIN
NO.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42

ICICK1

VOLTAGE

0.8 V

1.0 V

0.75 V

2.46 V

4.43 V

2.42 V

2.43 V

2.46 V

2.46 V

2.45 V

2.47 V

2.46 V

2.46 V

2.47 V

2.47 V

2.47 V

2.47 V

2.47 V

2.47 V

0.6 V

2.46 V
0 V

4.85 V

0.59 V

2.47 V

2.47 V

2.47 V

2.47 V

2.47 V

2.43 V

2.47 V

2.47 V

2.43 V

2.47 V

2.45 V

2.47 V

2.46 V
0 V
0 V
0 V
0 V
0 V

– 38 –

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 pico-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.

CD-BK250W/CD-BK2600W/CD-BK270W

• 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 “ 1 ” ( ) 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.

REF. NO

SW1 OPEN/CLOSE ON—OFF
SW2 CLAMP ON— OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW601 SPAN SELECTOR 9/50 Hz—10/100 Hz
SW701 ON/STAND-BY ON—OFF
SW702 CLOCK ON—OFF
SW703 TIMER/SLEEP ON—OFF
SW712 DISC SKIP ON—OFF
SW713 OPEN/CLOSE ON—OFF
SW714 DIMMER ON—OFF
SW715 X-BASS/DEMO ON—OFF
SW716 EQUALIZER ON—OFF
SW717 VOLUME UP ON—OFF
SW718 VOLUME DOWN ON—OFF

DESCRIPTION

POSITION

TYPES OF TRANSISTOR AND LED

REF. NO DESCRIPTION POSITION

SW719 REVERSE MODE ON—OFF
SW720 CD ON—OFF
SW721 TAPE ON—OFF
SW722 TUNING DOWN ON—OFF
SW723 MEMORY/SET ON—OFF
SW724 REWIND ON—OFF
SW725 FAST FORWARD ON—OFF
SW726 PLAY ON—OFF
SW727 STOP ON—OFF
SW728 REVERSE PLAY ON—OFF
SW729 REC/PAUSE ON—OFF
SW730 TUNING UP ON—OFF
SW731 VIDEO/AUX ON—OFF
SW732 TUNER (BAND) ON—OFF
SW801 VOLTAGE SELECTOR 110 V—127 V—

220 V—230-240 V

FRONT

VIEW

E C B

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

KTA1266 GR
KRC102 M
KRC104 M
KTA1271 Y
KTA1274 Y
2SC1845 F

KTA1273 Y
KTC3203 Y
KTC3199 GR
KRA107 M
KRC107 M
KTC3194 Y

FRONT
VIEW

SLR342VCJ1

– 39 –

CD-BK250W/CD-BK2600W/CD-BK270W

1

3

1

2

4

IC1 21

IC1 20

IC1 21

IC1 67

IC1 15

Stopped

CH1=500 mV

DC 10:1

T

FDO

1

TDO

3

Smoothing : ON CH1 : 0.000 V
BW : FULL

Stopped

1

T

2

3

-3 div -1 div 0 div +1 div +3 div

Smoothing : ON CH1 : 0.000 V
BW : FULL

CH1=500 mV

DC 10:1

FDO

DRF

TE

CH2 : 0.0 V
CH3 : 0.000 V
CH4 : 0.00 V

CH2=10 V

DC 10:1

CH Position To

CH2 : 0.0 V
CH3 : 0.00 V
CH4 : 0.00 V

CH3=500 mV

DC 10:1

=Record Length=

Main : 100 K
Zoom : 2 K

CH3=1 V

DC 10:1

=Record Length=

Main : 100 K
Zoom : 2 K

WAVEFORMS OF CD CIRCUIT

Stopped

CH1=200 mV

500 ms/div

(500 ms/div)

NORM:20 kS/s

CH1
v/DIV
500 mV

=Trigger==Filter= =Offset=
Mode : AUTO
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs

500 ms/div

(500 ms/div)

NORM:20 kS/s

CH2
Position

0.20 div

=Trigger==Filter= =Offset=
Mode : AUTO
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs

1

6

7

8

1

IC1 21

IC1 22

IC1 73

IC1 74

IC1 21

DC 10:1

T

FDO

2

SPDO

1

=Filter= =Offset=
Smoothing : ON CH1 : 0.000 V
BW : FULL

Stopped

CH1=500 mV

DC 10:1

PDO1

3

4

PDO2

T

FDO

1

Smoothing : ON CH1 : 0.000 V
BW : FULL

T

CH2=500 mV

DC 10:1

CH2 : 0.000 V
CH3 : 0.00 V
CH4 : 0.00 V

CH2 : 0.0 V
CH3 : 0.00 V
CH4 : 0.00 V

=Record Length=

Main : 100 K
Zoom : 2 K

CH3=1 V

DC 10:1

=Record Length=

Main : 100 K
Zoom : 2 K

1999/04/07 09:51:15

500 ms/div

(500 ms/div)

NORM:20 kS/s

=Trigger=
Mode : NORMAL
Type : EDGE CH2
Delay : 2.924 ms
Hold off : 0.2 µs

1999/04/05 17:33:17

CH4=1 V

500 ms/div

(500 ms/div)

DC 10:1

NORM:20 kS/s

=Trigger==Filter= =Offset=
Mode : AUTO
Type : EDGE CH2
Delay : 0.0 ns
Hold off : 0.2 µs

CH1
v/DIV
500 mV

5

4

3

IC1 4

IC1 15

IC1 67

Stopped

CH1=10 V

DC 10:1

TE

2

DRF

T
1

=Filter= =Offset=
Smoothing : ON CH1 : 0.0 V
BW : FULL

T

CH2=1 V

DC 10:1

CH2 : 0.00 V
CH3 : 0.00 V
CH4 : 0.00 V

=Record Length=

Main : 100 K
Zoom : 2 K

Vp-p=1.0 V~1.3 V

0.5 mV/div,0.5 µsec/div

100 ms/div

(100 ms/div)

NORM:100 kS/s

=Trigger=
Mode : NORMAL
Type : EDGE CH1
Delay : 2.924 ms
Hold off : 0.2 µs

– 40 –

9

10

11

12

IC1 39

IC1 58

IC1 59

IC1 60

DOUT

Stopped

CH1=2 V

DC 10:1

CH1=2 V

LRSY

DATACK

DATA

DC 10:1

T

CH2 : 0.00 V
CH3 : 0.00 V
CH4 : 0.00 V

T

CH2=2 V

DC 10:1

CH2 : 0.00 V
CH3 : 0.00 V
CH4 : 0.00 V

Stopped

T

1

Smoothing : ON CH1 : 0.00 V
BW : FULL

1

2

T

3

Smoothing : ON CH1 : 0.00 V
BW : FULL

=Record Length=

Main : 1 K
Zoom : 100

CH3=2 V

DC 10:1

=Record Length=

Main : 5 K
Zoom : 100

1999/04/07 09:25:28

500 ns/div

(500 ns/div)

NORM:200 MS/s

=Trigger==Filter= =Offset=
Mode : NORMAL
Type : EDGE CH1
Delay : 2.887 ms
Hold off : 0.2 µs

1999/04/05 20:50:17

5 µs/div

(5 µs/div)

NORM:100 kS/s

CH3
v/DIV
2 V

=Trigger==Filter= =Offset=
Mode : AUTO
Type : EDGE CH3
Delay : 0.0 ns
Hold off : 0.2 µs

CD-BK250W/CD-BK2600W/CD-BK270W

HOW TO USE

CAUTION

Cleaning fluid

Cleaner disc

Using the brush in the cleaner cap, apply 1 or 2 drops of the cleaning fluid to the
brush on the CD cleaner disc which has the mark next to it.
Place the CD cleaner disc onto the CD disc tray with the brush side down,then
press the play button.
You will hear music for about 20 seconds and the CD player will automatically stop.
If it continuous to turn, press the stop button.

1.

2.

3.

The CD lens cleaner should be effective for 30-50 operations, however if the
brushes become worn out earlier then please the cleaner disc.
If the CD cleaner brushes become very wet then wipe off any excess fluid with a soft
cloth.
Do not drink the cleaner fluid or allow it to come in contact with the eyes. In the
event of this happening then drink and / or rinse with clean water and seek medical
advice.
The CD cleaner disc must not be used on car CD players or on computer CD-ROM
drives.
All rights reserved. Unauthorized duplicating, broadcasting and renting this product
is prohibited by law.

TROUBLE SHOOTING

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 trouble shooting 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 off the power, and wipe the lens softly using a cleaning paper moistened with commercially available cleaning solution so
as not to damage it. Be careful not to touch the lens with bare hands.

Dust gradually accumulates on the objective lens during use, and it may degrade performance. To avoid this problem, use a
cleaning disc designed for CD optical pickup lenses.

Parts code

1. CD optical pickup Lens cleaner disc UDSKA0004AFZZ

When a CD cannot be played

1. "E-CD01" is displayed.

(1) Check the power to IC1 (LC78645E), the presence of the clock signal (33.8688 MHz) and the status of the RESET terminal
(pin 66 on IC1).
(2) Does the pickup move to the PICKUP-IN Switch (SW4) position?

If (1) and (2) are OK, check the system microcomputer (especially the communication line with the DSP).

2. Pressing the CD operation key is accepted, but playback does not occur.

(1) Focus-HF system check
(2) Tracking system check
(3) Spin system check
(4) PLL system check
(5) Others

– 41 –

CD-BK250W/CD-BK2600W/CD-BK270W

(1) Focus-HF system check.

Although a CD is inserted and the cover is closed, "NO
DISC" is displayed.

Press the OPEN/CLOSE switch (SW1) without inserting a
disc, and try starting the playback operation.

1. Does the pickup move to the PICKUP-IN Switch (SW4)
position ?

Yes

No

Stopped

CH1=500 mV

DC 10:1

T

FDO

1

TDO

3

Smoothing : ON CH1 : 0.000 V
BW : FULL

Sled motor (M2).

CH2 : 0.0 V
CH3 : 0.000 V
CH4 : 0.00 V

Figure 42-1

CH3=500 mV

DC 10:1

=Record Length=

Main : 100 K
Zoom : 2 K

500 ms/div

(500 ms/div)

NORM:20 kS/s

CH1
v/DIV
500 mV

=Trigger==Filter= =Offset=
Mode : AUTO
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs

2. Does the focus (lens) move up and down ?
(Waveform drawing Figure 42-1).

Yes

3. Is the laser lit ?
Yes

4. Is the turntable rotating ?

When a disc is loaded, start playback operation.

1. Is focus servo activated ?

(Waveform drawing Figure 42-2)

Yes

No

2. Does DRF change from "L" to "H" ?
Yes

3. Is the HF waveform normal ?

(Waveform drawing Figure 42-3)

Stopped

1

CH1=500 mV

DC 10:1

FDO

CH2=10 V

DC 10:1

CH3=1 V

DC 10:1

Is the disc rotating ?

500 ms/div

(500 ms/div)

NORM:20 kS/s

No

No

No

No

No

Check the focus peripheral circuit.

Check the laser diode driver Q1 peripheral circuit.

Spindle motor (M1).

Pins 7~12, 79 and 80 on IC1
Check the laser diode driver Q1 peripheral circuit.

No

Check the spin system.

If the disc is spinning and a HF waveform is generated,
DRF will go H.

If the level is not normal.

T

DRF

2

TE

3

-3 div -1 div 0 div +1 div +3 div

Smoothing : ON CH1 : 0.000 V
BW : FULL

CH Position To

CH2 : 0.0 V
CH3 : 0.00 V
CH4 : 0.00 V

=Record Length=

Main : 100 K
Zoom : 2 K

Figure 42-2

CH2
Position

0.20 div

=Trigger==Filter= =Offset=
Mode : AUTO
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs

– 42 –

Figure 42-3

Vp-p=1.0 V~1.3 V

0.5 mV/div,0.5 µsec/div

(2) Tracking system check.

Check the TE waveform at pin 15 on IC1.

CD-BK250W/CD-BK2600W/CD-BK270W

If the waveform shown in Figure 43-1 appears and soon after
NO DISC appears ?

No

"Initialization" is possible, but play is not possible ?

No

"Initialization" is not possible.

Yes

Yes

The tracking servo is not activated.
Check the peripheral circuits at pins 14, 15 and 20 on IC1, and
CNS1A/B.

A normal jump operation cannot be completed or the beginning of
the track cannot be found.
Check the around pin 20 on IC1.

Data cannot be read. Check the VCO-PLL system.

Stopped

CH1=10 V

DC 10:1

TE

2

DRF

T
1

=Filter= =Offset=
Smoothing : ON CH1 : 0.0 V
BW : FULL

T

CH2=1 V

DC 10:1

CH2 : 0.00 V
CH3 : 0.00 V
CH4 : 0.00 V

=Record Length=

Main : 100 K
Zoom : 2 K

100 ms/div

(100 ms/div)

NORM:100 kS/s

=Trigger=
Mode : NORMAL
Type : EDGE CH1
Delay : 2.924 ms
Hold off : 0.2 µs

(3) Spin system check.

Press the OPEN/CLOSE switch without inserting a disc, and
then try starting the play operation.

1. The turntable rotates a little ?
(Waveform drawing Figure 43-2)

No

2. The turntable doesn't rotate.

Yes

Figure 43-1

The spin driver circuit is OK.

Check around pin 22 on IC1, pins 15 and 16 on IC3, and CNS3A/B.

T

CH2=500 mV

DC 10:1

1999/04/07 09:51:15

500 ms/div

(500 ms/div)

NORM:20 kS/s

T

2

1

Stopped

CH1=200 mV

FDO

SPDO

DC 10:1

– 43 –

=Filter= =Offset=
Smoothing : ON CH1 : 0.000 V
BW : FULL

CH2 : 0.000 V
CH3 : 0.00 V
CH4 : 0.00 V

Figure 43-2

=Record Length=

Main : 100 K
Zoom : 2 K

=Trigger=
Mode : NORMAL
Type : EDGE CH2
Delay : 2.924 ms
Hold off : 0.2 µs

CD-BK250W/CD-BK2600W/CD-BK270W

(4) PLL system check.

When a disc is loaded, start play operation.

The HF waveform is normal, but the TOC data cannot be
read.

Check the PDO waveform. (Figure 44-1)

Check around pins 73~78 on IC1.

(5) Others.

The HF waveform is normal and the time is displayed
normally, but no sound is produced. Or the sound
has dropouts.

Is pin 52 (C2F) on IC1 "L" ?

Yes

No

Stopped

CH1=500 mV

DC 10:1

PDO1

3

4

PDO2

T

FDO

1

Smoothing : ON CH1 : 0.000 V
BW : FULL

CH2 : 0.0 V
CH3 : 0.00 V
CH4 : 0.00 V

CH3=1 V

DC 10:1

=Record Length=

Main : 100 K
Zoom : 2 K

1999/04/05 17:33:17

CH4=1 V

500 ms/div

(500 ms/div)

DC 10:1

NORM:20 kS/s

=Trigger==Filter= =Offset=
Mode : AUTO
Type : EDGE CH2
Delay : 0.0 ns
Hold off : 0.2 µs

CH1
v/DIV
500 mV

Figure 44-1

There are too many error flags on a damaged disc which
makes error correction impossible.

1. When playing at normal speed.
Check the peripheral circuit at pin 39 (DOUT) on IC1 and
the waveform (Figure 44-2).

If OK, Check the unit.

Check again using a known good disc.

Stopped

T

1

Smoothing : ON CH1 : 0.00 V
BW : FULL

T

CH1=2 V

DC 10:1

DOUT

=Filter= =Offset=

CH2 : 0.00 V
CH3 : 0.00 V
CH4 : 0.00 V

=Record Length=

Main : 1 K
Zoom : 100

Figure 44-2

1999/04/07 09:25:28

500 ns/div

(500 ns/div)

NORM:200 MS/s

=Trigger=
Mode : NORMAL
Type : EDGE CH1
Delay : 2.887 ms
Hold off : 0.2 µs

– 44 –

CD-BK250W/CD-BK2600W/CD-BK270W

FUNCTION T ABLE OF IC

IC1 VHiLC78645E-1: CD Servo (LC78645E) (1/2)

Pin No.

1 SLCO Output — Control output.
2 SLCIST Input —
3 EFMIN Input — RF signal input terminal.
4 RF Output — RF signal monitor terminal.
5 RFVDD Input — RF power terminal.
6 RFVSS — — RF earth terminal. To be connected to 0 V.
7 FIN1 A Input — A+C signal input terminal.
8 FIN2 B Input — B+D signal input terminal.
9 TIN1 E Input — E signal input terminal.
10 TIN2 F Input — F signal input terminal.
11 VREF Output RFVDD/2 VREF voltage output terminal.
12 REFI Input — Reference supply setting terminal.
13* FE Output ZHI FE signal monitor terminal.
14 TEC Output — LPF capacitor connection terminal for TE signal.
15* TE Output ZHI TE signal monitor terminal.
16* RFMON Output ZHI RF internal signal monitor terminal.
17 JITTC — — Capacitor connection terminal for jitter detection.
18 ADAVDD Input — Power terminal for servo A/D, D/A.
19 ADAVSS — — Earth terminal for serve A/D, D/A. To be connected to 0 V.
20 TDO Output ADAVDD/2 Output terminal for tracking control. D/A output.
21 FDO Output ADAVDD/2 Output terminal for focus control. D/A output.
22 SPDO Output ADAVDD/2 Output terminal for spindle control. D/A output.
23 SLDO Output ADAVDD/2 Output terminal for sled control. D/A output.
24* GPDAC Output ADAVDD/2 Servo D/A general-purpose output terminal.
25 CONT4 Input/Output Input Mode General-purpose I/O terminal 4.
26 CONT5 Input/Output Input Mode General-purpose I/O terminal 5.
27* SBCK/CONT6 Input/Output Input Mode General-purpose I/O terminal 6 or

28 SBCK/FG Input — Subcode reading clock input terminal/FG signal input terminal/external

29* DEFECT Output L Defect terminal.
30* V/*P Output H Auto switching monitor output terminal for rough servo phase control. “H”:

31* FSEQ Output L Sync signal detection output terminal.

32* MONI1 Output L Internal signal monitor terminal 1.
33* MONI2 Output L Internal signal monitor terminal 2.
34* MONI3 Output L Internal signal monitor terminal 3.
35* MONI4 Output L Internal signal monitor terminal 4.
36* MONI5 Output L Internal signal monitor terminal 5.
37 VSS — — Digital system earth terminal. To be connected to 0 V.
38 VDD Input — Digital system power terminal.
39* DOUT Output L Digital OUT output terminal. (EIAJ format)
40 TEST Input L Input terminal for test. To be connected to 0 V.
41 LVDD Input — Power supply for Left channel.
42 LCHO Output LVDD/2 Left channel output.
43 LVSS — — GND for Left channel. Must be connected to 0 V.

Terminal Name

Input/Output

Setting in Reset

Function

For slice level

control.

Subcode reading clock input terminal.

emphasis setting terminal. Terminal functions are set by commands. When
not used, connect to 0 V.

rough servo, “L”: phase servo.

The status changes to “H” when the sync signal detected in EFM and the
sync signal of internal generation are identified.

Left channel

D/A converter

Resistor connection terminal for SLCO output current

Controlled by commands from the
microcomputer. When not used, set
them as input terminals and connect
to 0 V, or set them as output
terminals and leave open.

setting.

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

– 45 –

CD-BK250W/CD-BK2600W/CD-BK270W

IC1 VHiLC78645E-1: CD Servo (LC78645E) (2/2)

Pin No.

44 RVSS — — GND for Right channel. Must be connected to 0 V.
45 RCHO Output LVDD /2 Right channel output.
46 RVDD Input — Power supply for Right channel.
47 XVDD Input — Power supply for crystal oscillator.
48 XOUT Output — Connected for the 33.8688 MHz crystal oscillator ciement.
49 XIN Input —
50 FSX/16MIN Input/Output Input 7.35 kHz Synchronization signal monitor port.

51 XVSS — — Crystal GND for crystal oscillator. Must be connected to 0 V.

52* C2F Output H C2 FLAG monitor port.
53* EFLG Output L C1, C2 error corrected monitor port.
54* 16MOUT Output Clock 16.9344 MHz output port.
55 ASLRCK Input — Word clock input port.

56 ASDACK Input — Bit clock input port.

57 ASDFIN Input —

58* LRSY Output L Word clock output port.
59* DATACK Output L Digital data Bit clock output port.
60* DATA Output L Left/Right channel data output port.
61 CE Input — Chip enable signal input port.
62 CL Input —
63 DI Input — Interface Data input port.
64 DO Output (H) Data output port. (N-ch. open drain output.)
65 *WRQ Output H Interruption signal output.
66 *RES Input — Chip reset signal input port.

67 DRF Output L Focus detection output port.
68 VDD5 Input — Power supply for Microprocessor.
69 VSS — — GND for digital circuit. Must be connected to 0 V.
70 CONT3 Input/Output Input General purpose port 1.

71 CONT2 Input/Output Input General purpose port 2.

72* CONT1 Input/Output Input General purpose port 3.

Terminal Name

Input/Output

Setting in Reset

Function

Right channel
D/A converter

Crystal

Oscillator

or Clock input port for Digital filter & D/A

Oscillator

(If this port does not use, must be connect to 0 V.)

Anti-shock

Microcomputer

This port must be set LOW after first applied power on.

(If this port does not use, must be connect to 0 V.)
Left/Right channel data input port.

(If this port does not use, must be connect to 0 V.)

Data transfer clock input port.

Controlled with serial data command from micro­computer. When not used, General purpose input/
output terminal 7. set it as the input terminal and open
it by connecting to 0 V, or set it as the output terminal
and open it.

73 PDO1 Output — Internal VCO control phase comparator output port 1.
74 PDO2 Output Input Internal VCO control phase comparator output port 2.
75 VVSS — — GND for internal VCO. Must be connected to 0 V.
76 PCKIST Input — PDO output current adjustment resistor connection port.
77 VVDD Input — Power supply for internal VCO.
78 FR Input — VCO frequency range adjustment port.
79 LDS Input — LASER power detected signal input port.
80 LDD Output — LASER power control signal output port.

PLL

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Be sure to supply the same potential to each power terminal. (VVDD, ADAVDD, VDD, LVDD, RVDD, XVDD)

Terminal witch is controlled by the power terminal (VDD5 V) for a microcomputer interface :
CE (61 pin), CL (62 pin), DI (63 pin), DO (64 pin), WRQ (65 pin), RES (66 pin), DRF (67 pin)

– 46 –

IC1 VHiLC78645E-1: CD Servo (LC78645E)

LDD

LDSFRVVDD

80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61

PCKIST

VVSS

PD02

PD01

CONT1

CONT2

CONT3

VSS

CD-BK250W/CD-BK2600W/CD-BK270W

VDD5

DRF

*RES

*WRQDODICLCE

SLCO

SLCIST

EFMIN

RF

RFVDD

RFVSS

FIN1 A
FIN2 B
TIN1 E

TIN2 F

VREF

REFI

FE

TEC

TE

RFMON

JITTC
ADAVDD
ADAVSS

TDO

1
2
3
4
5
6
7
8

9
10
11

LC78645E

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

DEFECT

SBCK/FG

V/*P

FSEQ

MONI1

MONI2

MONI3

MONI4

MONI5

FDO

SPDO

SLDO

CONT4

GPDAC

CONT5

SBCK/CONT6

RF

TEC

TE

FE

FIN1 A

FIN2 B

TIN1 E

TIN2 F

REF1

DETECT

+

–

+

–

+

–

+

–

LEVEL SET

–

TBAL

TBAL

MIX

LPF

+

RAM

AGC EQ

–

LPF

LPF

–
+

+

SW

+
–

PH

BH

MONI

CONT

+
–

+
–

VDD

(3.3 V)VSS

RFVDD
RFVSS

RFMON

VREF

DOUT

TEST

60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41

DATA
DATACK
LRSY
ASDFIN
ASDACK
ASLRCK
16MOUT
EFLG
C2F
XVSS
FSX/16MIN
XIN
XOUT
XVDD
RVDD
RCHO
RVSS
LVSS
LCHO
LVDD

ADIN

ADAVDD

ADAVSS

JITTC
SLCO

EFMIN

SLCIST

PCK

PDO1
PDO2

PCKIST

VVDD

VVSS

SBCK/FG

XOUT

16MOUT

XVDD

XVSS

*RES

*WRQ

VDD5V

CONT1, 2, 3

CONT4, 5

SBCK/CONT6

TEST

FR

XIN

CL

CE

DI

DO

SERVO PROCESSOR

A/D

JITTER

CLOCK

PORTS

8FS

1bit DAC

DETECT

CLV,CAV

CONTROL

SLICE LEVEL

CONTROL

PLL

VCEC

GENERATOR

COMMAND

INTERFACE

GENERAL-PURPOSE

DIGITAL FILTER

Figure 47 BLOCK DIAGRAM OF IC

TRACK JUMP

AUTO ADJUST

SW

DRF

RUPTURE DEFECT

FRAME SYNC

DETECT,PROTECT INSERT,

EFN DECODE

SUBCODE DECODE CRC

MONITOR SIGNAL SELECTOR

ERROR

CORRECTION

AUDIO CD

INTERPOLATION

MUTE

ATTENUATION

DEEMPHSIS

LPF

LVSS

LVDD

LCHO

RCHO

RVDD

RVSS

– 47 –

D/A

APC

S/H

RAM

AUDIO OUT

SERIAL

OUT

EXTERNAL

AUDIO IN

LDD
LDS

FDO
TDO
SLDO
SPDO
GPDAC

DRF

VDD

FSEQ

V/*P
VDD

VSS
MONI1~5

FSK/16MIN
C2F
EFLG

DOUT

LRSY
DATACK
DATA

ASLRCK
ASDQCK
ASDFIN

CD-BK250W/CD-BK2600W/CD-BK270W

IC701 RH-iX0427AWZZ: System Microcomputer (IX0427AW) (1/2)

Pin No.

1 VDD VDD Input (+) POWER SUPPLY.
2 P37 -20 dB ATT Output -20 dB ATTENUATOR.
3 P36 NO USE Output GND

4 P35 T_BIAS Output TAPE RECORD BIAS.
5 P34 T_T1/T2 Output TAPE T1/T2 CHANGE.
6 P33 REC/PLAY Output TAPE REC/PLAY CHANGE.
7 P32 RES OUT Output CD DSP RESET & MPEG MICROCOMPUTER RESET.
8 P31 DRF Input CD RF LEVEL DETECTION.
9 P30 WRQ Input CD DSP WRITE REQUEST.
10 RESET RESET Input RESET.
11 X2 X2 Output MAIN CLOCK.
12 X1 X1 Input MAIN CLOCK.
13 VPP/IC XVPP/IC — GND
14* XT2 XT2 — OPEN.
15 P04 SPN Input TUNER SPAN CHANGE.
16 VDD VDD Input (+) POWER SUPPLY.
17 P27 CD CLK Output CD DSP CLOCK.
18 P26 CD DI Output CD DSP COMMAND.
19 P25 CD DO Input CD DSP CODE Q OUT.
20 P24 CD CE Output CD DSP CE OUTPUT.
21 P23 CE Output CE OUTPUT.
22 P22 CLK Output CLOCK OUTPUT.
23 P21 DI Output DATA OUTPUT.
24 P20 DO Input DATA INPUT.
25 AVSS AVSS — ANALOG GROUND.
26 ANI7 O/C SW Input CD OPEN/CLOSE SWITCH.

27 ANI6 NO USE Input GND

28 ANI5 SPEANA 2 Input SPEANA DATA INPUT 16 kHz.
29 ANI4 SPEANA 1 Input SPEANA DATA INPUT 1 kHz.
30 ANI3 SPEANA 0 Input SPEANA DATA INPUT 63 kHz.
31-33 ANI2-ANI0 KEY 2-KEY 0 Input KEY INPUT.
34 AVDD AVDD Input ANALOG VDD.
35 AVREF AVREF Input ANALOG REF VOLTAGE.
36 INTP3 P_IN Input POWER FAILURE DETECT.
37 P02 JOG 1 Input JOG VOLUME INPUT 1.
38 P01 JOG 0 Input JOG VOLUME INPUT 0.
39 INTP0 REMOCON Input REMOCON INPUT.
40 VSS VSS — GROUND VOLTAGE.
41 P74 SMUTE Output SYSTEM MUTE CONTROL.
42 P73 T_SOL_B Output TAPE 2 SOLENOID CONTROL.
43 P72 T_SOL_A Output TAPE 1 SOLENOID CONTROL.
44 P71 T_MOTOR Output TAPE MOTOR CONTROL.
45 P70 TIMER LED Output TIMER LED CONTROL.
46 VDD VDD Input (+) POWER SUPPLY.
47* P127 AC RLY_CONT Output AC RELAY CONTROL.
48 P126 SP-RLY Output SPEAKER OUTPUT RELAY CONTROL.
49 P125 SP_DET Input SPEAKER OUTPUT DETECTION.

Port Name

Terminal Name

DSA_STB Input/Output DSA STRUBE

DISC NO SW Input CD DISC NUMBER SWITCH.
DSA_DATA Input/Output DS DATA INPUT.

TUNER SM Input TUNER SIGNAL METER INPUT.
DSA_ACK Input/Output DSA ACR.

Input/Output

Function

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

– 48 –

CD-BK250W/CD-BK2600W/CD-BK270W

IC701 RH-iX0427AWZZ: System Microcomputer (IX0427AW) (2/2)

Pin No.

50 P124 T 1 RUN Input TAPE 1 RUN PULSE INPUT.
51 P123 T 2 RUN Input TAPE 2 RUN PULSE INPUT.
52 P122 CD CLAMP SW Input CD CHANGER CLAMP SWITCH.
53 P121 NO USE Input GND
54 P120 PLAY SW_B Input PLAY SWITCH FOR T 2.
55 P117 FPA Input TAPE 2 A-SIDE FULL PROOF.
56 P116 FPB Input TAPE 2 B-SIDE FULL PROOF.
57 P115 MIC SW Input MIC SWITCH.
58* P114 LCK 0 Output LED DRIVER LCK.
59 P113
60 FIP39 NO USE Output GND
61 FIP38 KARAOKE LATCH Output KARAOKE LATCH.
62 FIP37 NO USE Output GND

63 FIP36 NO USE Output GND

64 FIP35 NO USE Input GND

65 FIP34 NO USE Output GND

66 FIP33 NO USE Input GND

67 P103 DIST3 Input DESTINATION INPUT.

68 P102 DIST2 Input DESTINATION INPUT.

69 P101 DIST1 Input DESTINATION INPUT.

70 P100 DIST0 Input DESTINATION INPUT.

71-78 FIP28-FIP21 P18-P11 Output FL DISPLAY DRIVER.
79 VLOAD VLOAD Input FL DRIVER (-) POWER SUPP. -30 V
80-89 FIP20-FIP11 P10-P1 Output FL DISPLAY DRIVER.
90-100 FIP10-FIP0 G11-G1 Output FL DISPLAY DRIVER.

Port Name

FIP32 P22 Output FL DISPLAY DRIVER.

FIP31 P21 Output FL DISPLAY DRIVER.

FIP30 P20 Output FL DISPLAY DRIVER.

FIP29 P19 Output FL DISPLAY DRIVER.

Terminal Name

DISTOUT

MPEG_POW Output MPEG POWER CONTROL.

RDS RST/ESS_ACK Output RDS FAN RESET.

RDS RDDA/ESS_STB Input RDS TRANSMIT DATA INPUT/DSA STROBE.

RDS RDCL/ESS_DI Output RDS CLOCK/DSA DATA OUTPUT.

RDS READY/ESS_DO Input RDS READY/DSA DATA INPUT.

Input/Output

Output DESTINATION OUTPUT.

Function

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

– 49 –

CD-BK250W/CD-BK2600W/CD-BK270W

IC601 VHiLC75341/-1: Audio Processor (LC75341)

DI

CE

VSS

123

CLK

VDD

VREF

222324

LOUT

LBASS

LIN

LSEL0

4

LVref

CCB

5

INTERFACE

6

CIRCUIT

CONTROL

CIRCUIT

CONTROL

7

8

RVref

CIRCUIT

CONTROL

21

20

19

18

17

ROUT

RBASS

RTRELTRE

R1N

RSEL0

CD

9

L4

CLK

24 23 22 21 20 19 18 17 16 15 14 13

Tape

Tuner

Video

10 11 12 13 14 15 16

RTRB

RIN

R1 R2

RSEL0R4R3

R3 R4

R2

L3

VDD

L2 L1

VREF

ROUT

RBASS

LC75341

123456789101112

DI

CE

VSS

LOUT

LBASS

Figure 50 BLOCK DIAGRAM OF IC

LIN

LTRE

– 50 –

L4

LSEL0

L3

L2

R1

L1

ICK1 VHiM65856SP-1: Mic Amp. (M65856SP) (1/2)

CD-BK250W/CD-BK2600W/CD-BK270W

Port NamePin No. Input/Output

1 MIC SW Input Microphone SW L: MIC OFF, H: MIC ON
2 MCLKCONT — Clock Control.

Controls built-in clock generation circuit with external R.

3 VALC — ALC operating voltage setting terminal.

To set ALC operating voltage according to applied voltage.

4 MIC1 IN Input Microphone 1 input.

To connect MIC 1.

5* ALC1 — ALC1 control.

To connect ALC1 attack/recovery time setting capacitor.

6* MIC1NFIN Input Microphone 1 negative feedback input.

To connect low cut-off frequency of MIC1 amplifier setting capacitor.
7* MIC1 OUT Output Microphone 1 output.
8 MIC1 VOLIN Input Microphone 1 volume input.

To connect capacitor to reduce noise generated at time of volume change.
9 MIC2 IN Input Microphone 2 input.

To connect MIC 2.
10 ALC2 — ALC2 control.

To connect ALC2 attack/recovery time setting capacitor.
11 MIC2 NFIN Input Microphone 2 negative feedback input.

To connect low cut-off frequency of MIC2 amplifier setting capacitor.
12 MIC2 OUT Output Microphone 2 output.
13 MIC2 VOLIN Input Microphone 2 volume input.

To connect capacitor to reduce noise generated at time of volume change.
14 MICOUT Output Microphone output.

Mixing output of MIC 1 and MIC 2.
15 LPF1IN1 Input Low pass filter 1 input 1.

Pre-filter before A/D convertor for digital delay.
16 LPF1 IN2 Input Low pass filter 1 input 2.

Pre-filter before A/D convertor for digital delay.
17 LPF1 OUT Output Low pass filter 1 output.

Pre-filter before A/D convertor for digital delay.
18 AD INTOUT Output A/D integrator output.

Composes D/A conversion integrator with external capacitor.
19 AD INTIN Input A/D integrator input.

Composes D/A conversion integrator with external capacitor.
20 ADCONT — A/D control.

To determine adaptive time constant of A/D convertor with ADM system.
21 REF — Reference power output.

To connect 1/2 Vcc output and filter capacitor.
22 GND — Ground.
23 VCC Input Power supply.
24 DACONT — D/A control.

To determine adaptive time constant of D/A convertor with ADM system .
25 DAINTIN Input D/A Integrator input.

Composes D/A conversion integrator with external capacitor.
26 DAINTOUT Output D/A Integrator output.

Composes D/A conversion integrator with external capacitor.
27 LPF2IN1 Input Low pass filter 2 input 1.

Post-filter after D/A convertor for digital delay.
28 LPF2IN2 Input Low pass filter 2 input 2.

Post-filter after D/A convertor for digital delay.
29 LPF2OUT Output Low pass filter 2 output.

Post-filter after D/A convertor for digital delay.
30 VOLIN Input Echo effect/Echo feed back volume input.

To connect capacitor to reduce noise generated at time of volume change.
31 L IN Input Lch line input.
32 R IN Input Rch line input.

Function

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

– 51 –

CD-BK250W/CD-BK2600W/CD-BK270W

ICK1 VHiM65856SP-1: Mic Amp. (M65856SP) (2/2)

Port NamePin No.

33* KEYCONIN Input Monaural input for external KEYCONTROL IC.

34* SOURCEOUT Output Monaural input for external KEYCONTROL IC.

35 R OUT Output Rch mixing output.
36 L OUT Output Lch mixing output.
37 VCF IL — Vocal cut filter.

38* PS1 Input Phase shift input 1.

39* PS2 Input Phase shift input 2.

40 LATCH Input Latch input via serial bus.
41 CLOCK Input Clock input via serial bus.
42 DATA Input Data input via serial bus.

Input/Output

Function

Input/Output interface terminal for external KEYCONTROL IC.

Input/Output interface terminal for external KEYCONTROL IC.

Processes frequencies lower then the vocal band.

Determines a constant at time of phase shift.

Determines a constant at time of phase shift.

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

DATA41CLOCK40LATCH39PS238PS137VCFIL36LOUT35ROUT34SOURCEOUT

42

µ-COM I/F

PHASE
SHIFTER
SURROUND

MIC SW

KEYCONIN

33

(L,R)/2

RIN31LIN30VOLIN29LPF2OUT

32

L R STEREO

ECHO
VOL

ECHO
F.BVOL

LPF2IN227LPF2IN126DAINTOUT

28

LPF D/A

25

16kbit
SRAM

DAINTIN24DACONT23VCC

VCC GND

MAIN LOGIC

ND

ADINTIN

1/ZVcc

ADCONT

MIC

MCLK

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

VALC

MIC SW

ALC

ALC1

MIC1IN

MCLKCONT

VOL

MIC1OUT

MIC1NFIN

ALC

MIC2IN

MIC1VOLIN

ALC2

MIC
VOL

MIC2OUT

MIC2NFIN

MICOUT

LPF1IN1

MIC2VOLIN

LPF

LPF1IN2

LPF1OUT

ADINTOUT

Figure 52 BLOCK DIAGRAM OF IC

GND

22

REF

– 52 –

FL701 VVKBJ749GNK-1: FL Display

CD-BK250W/CD-BK2600W/CD-BK270W

FL DISPLAY

11G 10G

S1

B7 B6 B5 B4 B3 B2 B1

11G

10G

S1

B21

B20

B19

B18

B17

B16

B15

1G 2G 3G 4G 5G 6G 7G 8G

col

9G

8G

S1S1

B8

B9
B10
B11
B12
B13
B14

S5

S3

h

f

r

e

p

d

7G

S4

S2

a

j

bk

mg

n

c

Dp

6G

B1

B2

5G

B7

B6

B5

B4

B3

4G

S1

B1 B2 B3 B4 B5 B6 B7

3G

9G

S1

2G

1G
P1
P2
P3
P4
P5
P6
P7
P8
P9

P10
P11
P12
P13
P14
P15
P16
P17

S1
B1
B2
B3
B4
B5
B6
B7

S1
B1
B2
B3
B4
B5
B6
B7
B8

B9
B10
B11
B12
B13
B14
B15
B16

S1
B1
B2
B3
B4
B5
B6
B7

(Hiper)

(Lower)

Dp

d
c
n
p

e

m

g

b
k

h

a

S2

Dp

d
c
n
p

r

r

e

m

g

Dp

d
c
n
p

e

m

g

Dp

d
c
n
p

r

r

e

m

g

Dp

m

Dp
d
c
n
p

r

e

d
c
n
p
r
e

m

g

g

Dp

d
c
n
p

e

m

g

Dp

d
c
n
p

r

r

e

m

g

col

b
k

j

j

h

f

f

a

S2

S2

b
k

j

h

f

a

S2

b
k

j

h

f

a

S2

b
k

j

h

f

a

b
k

h

a

S2

b
k

j

j

h

f

f

a

S2

b
k

j

h

f

a

S2
P18
P19
P20
P21
P22

B17
B18
B19
B20
B21

S3
S4
S5

S3
S4
S5

– 53 –

S3
S4
S5

S3
S4
S5

S3
S4
S5

S3
S4
S5

S3
S4
S5

S3

S4

S5

CD-BK250W/CD-BK2600W/CD-BK270W

–– MEMO ––

– 54 –

CD-BK250W/CD-BK2600W/CD-BK270W

PARTS GUIDE

MINI COMPONENT SYSTEM

MODEL CD-BK250W

CD-BK250W Mini Component System consisting of
CD-BK250W (main unit) and CP-BK250 (speaker system).

MINI COMPONENT SYSTEM

MODEL CD-BK2600W

CD-BK2600W Mini Component System consisting of
CD-BK2600W (main unit) and CP-BK2600 (speaker system).

“HOW TO ORDER REPLACEMENT PARTS”

To have your order filled promptly and correctly, please furnish the
following information.

1. MODEL NUMBER 2. REF. No.

3. PART NO. 4. DESCRIPTION

MARK: SPARE PARTS-DELIVERY SECTION

Explanation of capacitors/resistors parts codes

Capacitors

VCC ....................... Ceramic type

VCK........................ Ceramic type

VCT........................ Semiconductor type

VC • • MF ............... Cylindrical type (without lead wire)

VC • • MN............... Cylindrical type (without lead wire)

VC • • TV................ Square type (without lead wire)

VC • • TQ ............... Square type (without lead wire)

VC • • CY ............... Square type (without lead wire)

VC • • CZ ............... Square type (without lead wire)

VC • • • • • • • • • J .. The 13th character represents capacity difference.

("J" ±5%, "K" ±10%, "M" ±20%, "N" ±30%,
"C" ±0.25 pF, "D" ±0.5 pF, "Z" +80-20%.)

If there are no indications for the electrolytic capacitors, error is ±20%.

MINI COMPONENT SYSTEM

MODEL CD-BK270W

CD-BK270W Mini Component System consisting of
CD-BK270W (main unit), CP-BK270 (front speakers) and
GBOXS0070AWM1 (surround speakers).

For U.S.A. only

Contact your nearest SHARP Parts Distributor to order.

For location of SHARP Parts Distributor,
Please call Toll-Free;
1-800-BE-SHARP

Resistors

VRD ....................... Carbon-film type

VRS........................ Carbon-film type

VRN ....................... Metal-film type

VR • • MF ............... Cylindrical type (without lead wire)

VR • • MN............... Cylindrical type (without lead wire)

VR • • TV................ Square type (without lead wire)

VR • • TQ ............... Square type (without lead wire)

VR • • CY ............... Square type (without lead wire)

VR • • CZ ............... Square type (without lead wire)

VR • • • • • • • • • J .. The 13th character represents error.

("J" ±5%, "F" ±1%, "D" ±0.5%.)

If there are no indications for other parts, the resistors are ±5%
carbon-film type.

NOTE:

Parts marked with “ ” are important for maintaining the safety of the set.
Be sure to replace parts with specified ones for maintaining the safety and performance of the set.

– 55 –

CD-BK250W/CD-BK2600W/CD-BK270W

NO.

PARTS CODE

PRICE
RANK

DESCRIPTION

CD-BK250W/CD-BK2600W/CD-BK270W

INTEGRATED CIRCUITS

IC1 VHILC78645E-1 J AY CD Servo,LC78645E
IC2 VHIM63001FP-1 J AX Focus/Tracking/Spin/Sled Driver,

IC101 VHIAN7345K/-1 J AM Playback and Record/Playback
IC301 VHITA7358AP-1 J AG FM Front End,TA7358AP

IC302 VHILC72131/-1 J AP PLL (Tuner),LC72131
IC303 VHILA1832S/-1 J AN FM IF Det./FM Mpx./AM IF,

IC561,562 VHIKIA4558P-1 J AC Ope Amp.,KIA4558P
IC601 VHILC75341/-1 J AM Audio Processor,LC75341
IC701 RH-IX0427AWZZ J System Microcomputer,

IC901 VHISTK4029S-1 J BA Power Amp.,STK4029S
IC902 VSKTC2026//-1 J AF Silicon,NPN,KTC2026
IC903 VHIKIA7810AP1 J AF Voltage Regulator,KIA7810AP
IC904 VHIKIA7805AP1 J AF Constant Voltage Regulator,

ICK1 VHIM65856SP-1 J AX Mic Amp.,M65856SP
ICK2 VHIKIA4558P-1 J AC Ope Amp.,KIA4558P

M63001FP
Amp.,AN7345K

LA1832S

IX0427AW

KIA7805AP

TRANSISTORS

Q1 VSKTA1266GR-1 J AB Silicon,PNP,KTA1266 GR
Q2 VSKTC3203Y/-1 J AC Silicon,NPN,KTC3203 Y
Q3 VSKRC102M//-1 J AC Digital,NPN,KRC102 M
Q101~104 VS2SC1845F/-1 J AC Silicon,NPN,2SC1845 F
Q105~108 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GR
Q109 VSKTA1266GR-1 J AB Silicon,PNP,KTA1266 GR
Q110 VSKRC104M//-1 J AC Digital,NPN,KRC104 M
Q111 VSKTC3203Y/-1 J AC Silicon,NPN,KTC3203 Y
Q112 VSKTA1266GR-1 J AB Silicon,PNP,KTA1266 GR
Q113,114 VSKRC104M//-1 J AC Digital,NPN,KRC104 M
Q302 VSKTC3194Y/-1 J AD Silicon,NPN,KTC3194 Y
Q360 VSKTA1266GR-1 J AB Silicon,PNP,KTA1266 GR
Q601,602 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GR
Q603,604 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GR
Q701~703 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GR
Q706 VSKTA1273Y/-1 J AE Silicon,PNP,KTA1273 Y
Q707,708 VSKTA1271Y/-1 J AC Silicon,PNP,KTA1271 Y
Q709 VSKRC102M//-1 J AC Digital,NPN,KRC102 M
Q901 VSKTA1274Y/-1 J AE Silicon,PNP,KTA1274 Y
Q902~905 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GR
Q906 VSKTC3203Y/-1 J AC Silicon,NPN,KTC3203 Y
Q907 VSKRC107M//-1 J AC Digital,NPN,KRC107 M
Q908 VSKRA107M//-1 J AE Digital,PNP,KRA107 M
Q914 VSKTC3199GR-1 J AB Silicon,NPN,KTC3199 GR
QK1 VSKTC3203Y/-1 J AC Silicon,NPN,KTC3203 Y

DIODES

D1,2 VHDDS1SS133-1 J AB Silicon,DS1SS133
D301,302 VHDDS1SS133-1 J AB Silicon,DS1SS133
D305 VHDDS1SS133-1 J AB Silicon,DS1SS133
D561~563 VHDDS1SS133-1 J AB Silicon,DS1SS133
D690,691 VHDDS1SS133-1 J AB Silicon,DS1SS133
D701 VHDDS1SS133-1 J AB Silicon,DS1SS133
D705 VHDDS1SS133-1 J AB Silicon,DS1SS133
D709~716 VHDDS1SS133-1 J AB Silicon,DS1SS133
D901 VHDTS6B04GM-1 J AP Silicon,TS6B04GM
D902~908 VHDDS1N404S-1 J AB Silicon,DS1N404S
D911~916 VHDDS1SS133-1 J AB Silicon,DS1SS133
D917 VHDDS1N404S-1 J AB Silicon,DS1N404S
DK1,2 VHDDS1SS133-1 J AB Silicon,DS1SS133
LED701 VHPSLR342VCJ1 J AC LED,Red,SLR342VCJ1
ZD1 VHEDZ3R3BSB-1 J AB Zener,3.3V,DZ3.3BSB
ZD2 VHEDZ3R9BSB-1 J AC Zener,3.9V,DZ3.9BSB
ZD351 VHEDZ5R1BSB-1 J AC Zener,5.1V,DZ5.1BSB
ZD561 VHEDZ6R2BSB-1 J AC Zener,6.2V,DZ6.2BSB
ZD901 VHEDZ330BSD-1 J AC Zener,33V,DZ33BSB
ZD902 VHEDZ110BSB-1 J AB Zener,11V,DZ11BSB
ZD903 VHEDZ6R2BSA-1 J AB Zener,6.2V,DZ6.2BSA
ZD904 VHEDZ130BSB-1 J AB Zener,13V,DZ13BSB
ZD905 VHEDZ2R4BSB-1 J AB Zener,2.4V,DZ2.4BSB
ZDK1 VHEMTZJ5R6B-1 J AD Zener,5.6V,MTZJ5.6B

NO. PARTS CODE

PRICE

RANK

DESCRIPTION

FILTERS

BF301 RFILR0008AWZZ J AE Band Pass Filter
CF303 RFILF0124AFZZ J AD FM IF,10.7 MHz
CF351 RFILF0003AWZZ J AK FM IF
CF352 RFILA0009AWZZ J AE AM IF

TRANSFORMERS

1 PT801 RTRNP0352AWZZ J Power

T301 RCILB0065AWZZ J AC FM OSC.
T302 RCILI0017AWZZ J AB FM IF
T303 RCILA0052AWZZ J AE AM Tracking
T306 RCILB0067AWZZ J AD AM OSC.
T351 RCILI0019AWZZ J AD AM IF

COILS

L1 VP-XHR82K0000 J AC 0.82 µH
L103 VP-MK331K0000 J AB 330 µH,Choke
L312 RCILR0056AWZZ J AB FM RF
L351 VP-DH101K0000 J AB 100 µH,Choke
L701 VP-DH101K0000 J AB 100 µH,Choke
L920,921 RCILZ0137AFZZ J AA 0.29 µH

VARIABLE RESISTOR

VRK1 92LVRR1674A J AF 20 kohms (B) [Mic Volume]

VARIABLE CAPACITORS

VD301 VHCSVC348S/-1 J AK Variable Capacitance,SVC348S
VD302,303 VHCSVC211C/-1 J AG Variable Capacitance,SVC211C

VIBRATORS

X351 92LCRSTL1425A J AF Crystal,456 kHz
X352 RCRSP0015AWZZ J AF Crystal,4.5 MHz
XL1 RCRM-0041AWZZ J AF Ceramic,33.8688 MHz
XL700 RCRSP0003AWZZ J AH Crystal,4.194304 MHz

CAPACITORS

C1 VCEAZA1EW476M J AB 47 µF,25V,Electrolytic
C2 VCTYMN1CY103N J AA 0.01 µF,16V
C3 VCEAZA1EW476M J AB 47 µF,25V,Electrolytic
C4 VCKYMN1HB102K J AA 0.001 µF,50V
C5 VCQYKA1HM473J J AB 0.047 µF,50V,Mylar
C6 VCTYPA1CX104K J AB 0.1 µF,16V
C7 VCKYMN1HB101K J AA 100 pF,50V
C8 VCTYMN1CX472K J AA 0.0047 µF,16V
C9 VCEAZA1AW107M J AB 100 µF,10V,Electrolytic
C10 VCEAZA1HW106M J AB 10 µF,50V,Electrolytic
C11 VCEAZA1HW224M J AB 0.22 µF,50V,Electrolytic
C12 VCCSPA1HL101J J AA 100 pF,50V
C13 VCTYMN1EF223Z J AA 0.022 µF,25V
C14 RC-EZY107AF1A J AB 100 µF,10V,Electrolytic
C16 VCEAEA0JW337M J AD 330 µF,6.3V,Electrolytic
C18 VCEAZA1AW107M J AB 100 µF,10V,Electrolytic
C23,24 RC-EZY106AF1H J AB 10 µF,50V,Electrolytic
C25,26 VCTYMN1CX152K J AA 0.0015 µF,16V
C27 VCTYMN1EF223Z J AA 0.022 µF,25V
C28 VCKYMN1HB101K J AA 100 pF,50V
C30 VCKYMN1HB101K J AA 100 pF,50V
C32~34 VCKYMN1HB101K J AA 100 pF,50V
C35 VCQYKA1HM473J J AB 0.047 µF,50V,Mylar
C36 VCEAZA1HW225M J AB 2.2 µF,50V,Electrolytic
C37 VCTYPA1CX104K J AB 0.1 µF,16V
C38 VCTYMN1CY103N J AA 0.01 µF,16V
C39 VCEAZA1AW107M J AB 100 µF,10V,Electrolytic
C40 VCEAZA0JW227M J AC 220 µF,6.3V,Electrolytic
C41 VCEAZA1AW107M J AB 100 µF,10V,Electrolytic
C42 VCTYMN1CY103N J AA 0.01 µF,16V
C44 VCKYMN1HB102K J AA 0.001 µF,50V
C48 VCKZPA1HF223Z J AA 0.022 µF,50V
C49 VCEAZA1EW476M J AB 47 µF,25V,Electrolytic
C50 VCCCPA1HH220J J AA 22 pF (CH),50V
C51 VCTYBT1EF223Z J AA 0.022 µF,25V
C101,102 VCKYMN1HB561K J AA 560 pF,50V
C103,104 VCKYMN1HB181K J AA 180 pF,50V
C105,106 VCKYMN1HB561K J AA 560 pF,50V
C107~110 VCKYMN1HB331K J AA 330 pF,50V

– 1 –

CD-BK250W/CD-BK2600W/CD-BK270W

NO. PARTS CODE

C111,112 VCEAZA1EW107M J AB 100 µF,25V,Electrolytic
C113,114 VCTYPA1EX333K J AA 0.033 µF,25V
C115,116 VCKYMN1HB561K J AA 560 pF,50V
C117,118 VCEAZA1EW476M J AB 47 µF,25V,Electrolytic
C119 VCKYPA1HB222K J AA 0.0022 µF,50V
C120 VCTYMN1CX222K J AA 0.0022 µF,16V
C121 VCTYMN1EF223Z J AA 0.022 µF,25V
C122 VCEAZA1HW335M J AB 3.3 µF,50V,Electrolytic
C123,124 VCKYMN1HB271K J AA 270 pF,50V
C125,126 VCEAZA1HW226M J AB 22 µF,50V,Electrolytic
C127,128 VCKZPA1HF223Z J AA 0.022 µF,50V
C129,130 VCTYMN1CX332K J AA 0.0033 µF,16V
C131,132 VCEAZA1EW476M J AB 47 µF,25V,Electrolytic
C133 VCEAZA1HW226M J AB 22 µF,50V,Electrolytic
C134 VCEAZA1AW227M J AC 220 µF,10V,Electrolytic
C135 VCTYMN1EF223Z J AA 0.022 µF,25V
C136 VCKZPA1HF223Z J AA 0.022 µF,50V
C137 VCQYKA1HM473K J AB 0.047 µF,50V,Mylar
C138 VCQPKA2AA822J J AA 0.0082 µF,100V,Polypropylene
C139 VCQYKA1HM393K J AB 0.039 µF,50V,Mylar
C140 VCEAZA1EW476M J AB 47 µF,25V,Electrolytic
C141 VCEAZA1CW107M J AC 100 µF,16V,Electrolytic
C150 VCEAZA1HW106M J AB 10 µF,50V,Electrolytic
C301 VCTYMN1CY103N J AA 0.01 µF,16V
C303 VCCCMN1HH100J J AA 10 pF (CH),50V
C304 VCTYMN1CY103N J AA 0.01 µF,16V
C305 VCCCMN1HH4R7C J AA 4.7 pF (CH),50V
C306 VCTYMN1EF223Z J AA 0.022 µF,25V
C307 VCEAZA1HW106M J AB 10 µF,50V,Electrolytic
C308 VCCCMN1HH4R7C J AA 4.7 pF (CH),50V
C309 VCKYMN1HB102K J AA 0.001 µF,50V
C310 VCCCMN1HH150J J AA 15 pF (CH),50V
C311 VCCSMN1HL180J J AA 18 pF,50V
C312 VCTYMN1EF223Z J AA 0.022 µF,25V
C313 VCCSMN1HL220J J AA 22 pF,50V
C314,315 VCTYMN1CX472K J AA 0.0047 µF,16V
C316 VCTYMN1EF223Z J AA 0.022 µF,25V
C317 VCKYMN1HB102K J AA 0.001 µF,50V
C318 VCKYMN1HB101K J AA 100 pF,50V
C323 VCTYMN1EF223Z J AA 0.022 µF,25V
C324 VCCUMN1HJ3R9K J AA 3.9 pF (UJ),50V
C330 VCCSMN1HL150J J AA 15 pF,50V
C331 VCKZPA1HF473Z J AA 0.047 µF,50V
C332 VCTYMN1EF223Z J AA 0.022 µF,25V
C334 VCCCMN1HH220J J AA 22 pF (CH),50V
C335 VCKYMN1HB561K J AA 560 pF,50V
C338 VCKYMN1HB102K J AA 0.001 µF,50V
C340 VCKYMN1HB102K J AA 0.001 µF,50V
C342 VCTYMN1EF223Z J AA 0.022 µF,25V
C350 VCKZPA1HF223Z J AA 0.022 µF,50V
C352 VCEAZA1HW106M J AB 10 µF,50V,Electrolytic
C353,354 VCTYMN1EF223Z J AA 0.022 µF,25V
C355 VCCSMN1HL220J J AA 22 pF,50V
C356 VCKYMN1HB102K J AA 0.001 µF,50V
C357 VCEAZA1HW225M J AB 2.2 µF,50V,Electrolytic
C358 VCEAZA1HW105M J AB 1 µF,50V,Electrolytic
C361 VCTYMN1EF223Z J AA 0.022 µF,25V
C362 VCEAZA1HW335M J AB 3.3 µF,50V,Electrolytic
C363 VCTYMN1EF223Z J AA 0.022 µF,25V
C364 VCEAZA1HW225M J AB 2.2 µF,50V,Electrolytic
C365 VCKZPA1HF223Z J AA 0.022 µF,50V
C366 VCKYMN1HB102K J AA 0.001 µF,50V
C367,368 VCEAZA1HW105M J AB 1 µF,50V,Electrolytic
C369 VCCSMN1HL270J J AA 27 pF,50V
C370~372 VCEAZA1HW105M J AB 1 µF,50V,Electrolytic
C373,374 VCTYPA1CX153K J AA 0.015 µF,16V
C380 VCEAZA1HW106M J AB 10 µF,50V,Electrolytic
C381 VCCCMN1HH120J J AA 12 pF (CH),50V
C382 VCCCMN1HH150J J AA 15 pF (CH),50V
C384 VCKYMN1HB102K J AA 0.001 µF,50V
C385 VCTYMN1CY103N J AA 0.01 µF,16V
C386 VCKYMN1HB331K J AA 330 pF,50V
C387 VCTYMN1EF223Z J AA 0.022 µF,25V
C388 VCKYMN1HB102K J AA 0.001 µF,50V
C389 VCTYMN1EF223Z J AA 0.022 µF,25V
C391 VCEAZA1EW476M J AB 47 µF,25V,Electrolytic
C392 VCKYMN1HB102K J AA 0.001 µF,50V
C393 VCEAZA1HW105M J AB 1 µF,50V,Electrolytic
C394 VCEAZA1EW476M J AB 47 µF,25V,Electrolytic
C395 VCTYMN1EF223Z J AA 0.022 µF,25V
C396 VCEAZA1AW107M J AB 100 µF,10V,Electrolytic
C397 VCTYMN1EF223Z J AA 0.022 µF,25V

PRICE
RANK

DESCRIPTION

NO.

C398 VCEAZA1AW107M J AB 100 µF,10V,Electrolytic
C399 VCTYMN1EF223Z J AA 0.022 µF,25V
C561 VCKYPA1HB271K J AA 270 pF,50V
C562 VCKYMN1HB271K J AA 270 pF,50V
C563 VCEAZA1HW225M J AB 2.2 µF,50V,Electrolytic
C564,565 VCTYMN1CX272K J AA 0.0027 µF,16V
C566 VCEAZA1HW225M J AB 2.2 µF,50V,Electrolytic
C567,568 VCTYMN1CX682K J AA 0.0068 µF,16V
C569 VCEAZA1HW225M J AB 2.2 µF,50V,Electrolytic
C570~572 VCTYMN1EF223Z J AA 0.022 µF,25V
C573 VCKZPA1HF223Z J AA 0.022 µF,50V
C601 VCEAZA1CW227M J AC 220 µF,16V,Electrolytic
C603 VCEAZA1HW226M J AB 22 µF,50V,Electrolytic
C605,606 VCFYDA1HA154J J AB 0.15 µF,50V,Polyester
C607,608 VCFYHA1HA104J J AB 0.1 µF,50V,Thin Film
C609,610 VCEAZA1HW105M J AB 1 µF,50V,Electrolytic
C611,612 VCTYMN1CX272K J AA 0.0027 µF,16V
C613,614 VCEAZA1HW105M J AB 1 µF,50V,Electrolytic
C615,616 VCEAZA1HW475M J AB 4.7 µF,50V,Electrolytic
C617~624 VCEAZA1HW105M J AB 1 µF,50V,Electrolytic
C625,626 VCTYMN1CX562K J AA 0.0056 µF,16V
C635~638 VCKYMN1HB102K J AA 0.001 µF,50V
C639 VCEAZA1HW105M J AB 1 µF,50V,Electrolytic
C640 VCEAZA1HW226M J AB 22 µF,50V,Electrolytic
C690,691 VCKYMN1HB391K J AA 390 pF,50V
C693 VCKYMN1HB102K J AA 0.001 µF,50V
C701 VCEAZA1HW105M J AB 1 µF,50V,Electrolytic
C702 VCEAZA1AW227M J AC 220 µF,10V,Electrolytic
C703 VCTYMN1EF223Z J AA 0.022 µF,25V
C704 VCCSMN1HL150J J AA 15 pF,50V
C705 VCCSMN1HL180J J AA 18 pF,50V
C706 VCEAZA1HW476M J AB 47 µF,50V,Electrolytic
C707 VCEAZA1HW105M J AB 1 µF,50V,Electrolytic
C712 VCEAZA1HW476M J AB 47 µF,50V,Electrolytic
C714 VCEAZA1HW335M J AB 3.3 µF,50V,Electrolytic
C715 VCTYMN1CY103N J AA 0.01 µF,16V
C716 VCTYMN1EF223Z J AA 0.022 µF,25V
C717 VCEAZA1HW476M J AB 47 µF,50V,Electrolytic
C734,735 VCCSPA1HL221J J AA 220 pF,50V
C901,902 VCQYKA1HM104K J AB 0.1 µF,50V,Mylar
C903,904 RC-EZ0063AWZZ J AM 2200 µF,63V,Electrolytic
C905,906 VCQYKA1HM104K J AB 0.1 µF,50V,Mylar
C907 VCEAZW1VW228M J AH 2200 µF,35V,Electrolytic
C908,909 VCEAZA1HW107M J AC 100 µF,50V,Electrolytic
C910 VCEAZA1HW227M J AC 220 µF,50V,Electrolytic
C911,912 VCEAZA1HW476M J AB 47 µF,50V,Electrolytic
C913 VCEAZA1VW107M J AC 100 µF,35V,Electrolytic
C915 VCKZPA1HF223Z J AA 0.022 µF,50V
C916 VCEAZA1HW226M J AB 22 µF,50V,Electrolytic
C918 VCQYKA1HM104K J AB 0.1 µF,50V,Mylar
C920 VCEAZA1EW476M J AB 47 µF,25V,Electrolytic
C921 VCQYKA1HM104K J AB 0.1 µF,50V,Mylar
C923 VCEAZA1EW476M J AB 47 µF,25V,Electrolytic
C930,931 VCEAZA1HW224M J AB 0.22 µF,50V,Electrolytic
C932,933 VCKYMN1HB102K J AA 0.001 µF,50V
C934,935 VCEAZA1HW475M J AB 4.7 µF,50V,Electrolytic
C936,937 VCCSMN1HL150J J AA 15 pF,50V
C938,939 VCKYMN1HB821K J AA 820 pF,50V
C940,941 VCEAZA1HW107M J AC 100 µF,50V,Electrolytic
C942 VCFYDA1HA224J J AB 0.22 µF,50V,Polyester
C945,946 VCEAZA1HW106M J AB 10 µF,50V,Electrolytic
C947 VCTYMN1EF223Z J AA 0.022 µF,25V
C948 VCKZPA1HF223Z J AA 0.022 µF,50V
C949 VCEAZA1HW476M J AB 47 µF,50V,Electrolytic
C952,953 VCQYKA1HM473K J AB 0.047 µF,50V,Mylar
C967 VCEAZA1HW476M J AB 47 µF,50V,Electrolytic
C968 VCEAZA1HW106M J AB 10 µF,50V,Electrolytic
C969 VCEAZA1HW335M J AB 3.3 µF,50V,Electrolytic
C970 VCEAZW1CW688M J AH 6800 µF,16V,Electrolytic
CK1 VCTYPA1CX103K J AA 0.01 µF,16V
CK2 VCFYHA1HA474J J AD 0.47 µF,50V,Thin Film
CK3 VCKYBT1HB102K J AA 0.001 µF,50V
CK6 VCFYDA1HA104J J AB 0.1 µF,50V,Thin Film
CK7 VCFYHA1HA474J J AD 0.47 µF,50V,Thin Film
CK8 RC-EZY475AF1H J AB 4.7 µF,50V,Electrolytic
CK9 RC-EZY225AF1H J AB 2.2 µF,50V,Electrolytic
CK10,11 VCFYDA1HA104J J AB 0.1 µF,50V,Thin Film
CK12 RC-EZY225AF1H J AB 2.2 µF,50V,Electrolytic
CK13 VCTYPA1CX472K J AA 0.0047 µF,16V
CK14 VCTYPA1CX102K J AA 0.001 µF,16V
CK15 VCFYDA1HA683J J AB 0.068 µF,50V,Polyester
CK16 VCFYHA1HA224J J AC 0.22 µF,50V,Thin Film

PRICE

RANK

DESCRIPTIONPARTS CODE

– 2 –

CD-BK250W/CD-BK2600W/CD-BK270W

NO.

CK17 VCEAEA1AW227M J 220 µF,10V,Electrolytic
CK19 VCTYBT1EF223Z J AA 0.022 µF,25V
CK20 VCFYHA1HA224J J AC 0.22 µF,50V,Thin Film
CK21 VCFYDA1HA683J J AB 0.068 µF,50V,Polyester
CK22 VCTYPA1CX472K J AA 0.0047 µF,16V
CK23 VCKYPA1HB102K J AA 0.001 µF,50V
CK24~26 VCEAZA1HW225M J AB 2.2 µF,50V,Electrolytic
CK29,30 VCEAZA1HW225M J AB 2.2 µF,50V,Electrolytic
CK31 VCFYDA1HA154J J AB 0.15 µF,50V,Polyester
CK33~35 VCCSBT1HL470J J AA 47 pF,50V
CK41 VCEAZA1CW107M J AC 100 µF,16V,Electrolytic
CK42 VCTYBT1EF223Z J AA 0.022 µF,25V
CK43,44 VCEAZA1EW476M J AB 47 µF,25V,Electrolytic
CK45,46 RC-EZY225AF1H J AB 2.2 µF,50V,Electrolytic
CK47,48 VCCSPA1HL221J J AA 220 pF,50V
CK49,50 VCCSPA1HL101J J AA 100 pF,50V
CK51,52 VCEAZA1HW105M J AB 1 µF,50V,Electrolytic
CK53 VCEAZA1HW476M J AB 47 µF,50V,Electrolytic
CK72 VCEAZA1CW107M J AC 100 µF,16V,Electrolytic
CR1,2 VCEAZA1HW226M J AB 22 µF,50V,Electrolytic
CT1 VCKZPA1HF103Z J AA 0.01 µF,50V

PARTS CODE

PRICE
RANK

DESCRIPTION

RESISTORS

R1,2 VRD-ST2CD123J J AA 12 kohms,1/6W
R3 VRD-ST2CD333J J AA 33 kohms,1/6W
R4,5 VRD-ST2CD123J J AA 12 kohms,1/6W
R6 VRD-ST2CD333J J AA 33 kohms,1/6W
R7 VRD-ST2CD470J J AA 47 ohms,1/6W
R9 VRD-ST2CD3R3J J AA 3.3 ohms,1/6W
R10 VRD-ST2CD273J J AA 27 kohms,1/6W
R11 VRD-MN2BD103J J AA 10 kohm,1/8W
R12 VRD-MN2BD331J J AA 330 ohms,1/8W
R13~17 VRD-MN2BD102J J AA 1 kohm,1/8W
R18 VRD-ST2CD102J J AA 1 kohm,1/6W
R19 VRD-ST2CD153J J AA 15 kohms,1/6W
R20 VRD-ST2CD103J J AA 10 kohm,1/6W
R22 VRD-ST2CD101J J AA 100 ohm,1/6W
R23 VRD-MN2BD221J J AA 220 ohms,1/8W
R24,25 VRD-MN2BD222J J AA 2.2 kohms,1/8W
R26,27 VRD-MN2BD103J J AA 10 kohm,1/8W
R28,29 VRD-ST2CD222J J AA 2.2 kohms,1/6W
R30 VRD-ST2CD822J J AA 8.2 kohms,1/6W
R31~38 VRD-ST2CD102J J AA 1 kohm,1/6W
R39,40 VRD-MN2BD681J J AA 680 ohms,1/8W
R41 VRD-MN2BD123J J AA 12 kohms,1/8W
R42 VRD-MN2BD122J J AA 1.2 kohms,1/8W
R43 VRD-MN2BD101J J AA 100 ohm,1/8W
R44 VRD-ST2CD123J J AA 12 kohms,1/6W
R45,46 VRD-MN2BD471J J AA 470 ohms,1/8W
R47 VRD-MN2BD101J J AA 100 ohm,1/8W
R49 VRD-ST2EE1R0J J AA 1 ohm,1/4W
R65 VRD-ST2CD332J J AA 3.3 kohms,1/6W

1 R80 VRG-ST2EG3R3J J AB 3.3 ohms,1/4W,Fusible

R101,102 VRD-MN2BD102J J AA 1 kohm,1/8W
R103,104 VRD-MN2BD222J J AA 2.2 kohms,1/8W
R105,106 VRD-MN2BD332J J AA 3.3 kohms,1/8W
R107,108 VRD-MN2BD473J J AA 47 kohms,1/8W
R109,110 VRD-MN2BD472J J AA 4.7 kohms,1/8W
R111 VRD-MN2BD153J J AA 15 kohms,1/8W
R112 VRD-ST2CD153J J AA 15 kohms,1/6W
R113,114 VRD-ST2CD102J J AA 1 kohm,1/6W
R115,116 VRD-ST2CD560J J AA 56 ohms,1/6W
R117,118 VRD-MN2BD104J J AA 100 kohm,1/8W
R119,120 VRD-MN2BD392J J AA 3.9 kohms,1/8W
R121,122 VRD-MN2BD333J J AA 33 kohms,1/8W
R123,124 VRD-MN2BD562J J AA 5.6 kohms,1/8W
R125 VRD-MN2BD683J J AA 68 kohms,1/8W
R126,127 VRD-MN2BD392J J AA 3.9 kohms,1/8W
R128,129 VRD-MN2BD682J J AA 6.8 kohms,1/8W
R130,131 VRD-MN2BD152J J AA 1.5 kohms,1/8W
R132,133 VRD-MN2BD101J J AA 100 ohm,1/8W
R134,135 VRD-MN2BD103J J AA 10 kohm,1/8W
R136,137 VRD-ST2CD224J J AA 220 kohms,1/6W
R138 VRD-MN2BD103J J AA 10 kohm,1/8W
R139 VRD-ST2CD103J J AA 10 kohm,1/6W
R140 VRD-MN2BD473J J AA 47 kohms,1/8W
R141 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R142 VRD-ST2CD820J J AA 82 ohms,1/6W
R143 VRD-MN2BD473J J AA 47 kohms,1/8W
R144 VRD-MN2BD223J J AA 22 kohms,1/8W

VRD-MN2BD000C J AA 0 ohm,Jumper,ø1.4×3.5mm,Ivory

NO. PARTS CODE

R145 VRD-ST2CD4R7J J AA 4.7 ohms,1/6W
R146,147 VRD-MN2BD103J J AA 10 kohm,1/8W
R148 VRD-MN2BD472J J AA 4.7 kohms,1/8W
R149 VRD-ST2EE151J J AA 150 ohms,1/4W
R158 VRD-ST2EE221J J AA 220 ohms,1/4W
R302 VRD-MN2BD100J J AA 10 ohm,1/8W
R309 VRD-ST2CD103J J AA 10 kohm,1/6W
R311 VRD-MN2BD104J J AA 100 kohm,1/8W
R313 VRD-MN2BD333J J AA 33 kohms,1/8W
R314 VRD-ST2CD220J J AA 22 ohms,1/6W
R316 VRD-MN2BD472J J AA 4.7 kohms,1/8W
R322 VRD-MN2BD681J J AA 680 ohms,1/8W
R323 VRD-MN2BD683J J AA 68 kohms,1/8W
R325 VRD-MN2BD473J J AA 47 kohms,1/8W
R327 VRD-MN2BD330J J AA 33 ohms,1/8W
R336 VRD-MN2BD103J J AA 10 kohm,1/8W
R350 VRD-MN2BD272J J AA 2.7 kohms,1/8W
R351 VRD-MN2BD562J J AA 5.6 kohms,1/8W
R352 VRD-MN2BD102J J AA 1 kohm,1/8W
R353 VRD-MN2BD271J J AA 270 ohms,1/8W
R355 VRD-MN2BD332J J AA 3.3 kohms,1/8W
R356 VRD-MN2BD102J J AA 1 kohm,1/8W
R357 VRD-ST2CD474J J AA 470 kohms,1/6W
R358 VRD-ST2CD392J J AA 3.9 kohms,1/6W
R359 VRD-MN2BD182J J AA 1.8 kohms,1/8W
R360 VRD-MN2BD472J J AA 4.7 kohms,1/8W
R361,362 VRD-MN2BD153J J AA 15 kohms,1/8W
R363,364 VRD-MN2BD123J J AA 12 kohms,1/8W
R365 VRD-MN2BD103J J AA 10 kohm,1/8W
R372~374 VRD-MN2BD102J J AA 1 kohm,1/8W
R375 VRD-ST2CD471J J AA 470 ohms,1/6W
R376 VRD-MN2BD102J J AA 1 kohm,1/8W
R377 VRD-MN2BD473J J AA 47 kohms,1/8W
R378 VRD-MN2BD102J J AA 1 kohm,1/8W
R379 VRD-MN2BD222J J AA 2.2 kohms,1/8W
R380 VRD-MN2BD152J J AA 1.5 kohms,1/8W
R381 VRD-MN2BD103J J AA 10 kohm,1/8W
R382 VRD-ST2EE151J J AA 150 ohms,1/4W
R383 VRD-MN2BD562J J AA 5.6 kohms,1/8W
R384 VRD-ST2CD562J J AA 5.6 kohms,1/6W
R385 VRD-MN2BD562J J AA 5.6 kohms,1/8W
R386 VRD-ST2CD223J J AA 22 kohms,1/6W
R387 VRD-ST2CD562J J AA 5.6 kohms,1/6W
R388 VRD-MN2BD392J J AA 3.9 kohms,1/8W
R391,392 VRD-ST2EE271J J AA 270 ohms,1/4W
R393 VRD-MN2BD102J J AA 1 kohm,1/8W
R395 VRD-MN2BD473J J AA 47 kohms,1/8W
R561 VRD-MN2BD103J J AA 10 kohm,1/8W
R562 VRD-MN2BD824J J AA 820 kohms,1/8W
R563 VRD-ST2EE271J J AA 270 ohms,1/4W
R565 VRD-MN2BD333J J AA 33 kohms,1/8W
R566 VRD-ST2CD224J J AA 220 kohms,1/6W
R567 VRD-MN2BD683J J AA 68 kohms,1/8W
R568 VRD-MN2BD224J J AA 220 kohms,1/8W
R569 VRD-MN2BD104J J AA 100 kohm,1/8W
R570 VRD-ST2CD123J J AA 12 kohms,1/6W
R571 VRD-MN2BD394J J AA 390 kohms,1/8W
R572 VRD-MN2BD104J J AA 100 kohm,1/8W
R573 VRD-MN2BD563J J AA 56 kohms,1/8W
R574 VRD-MN2BD105J J AA 1 Mohm,1/8W
R575 VRD-MN2BD474J J AA 470 kohms,1/8W
R576 VRD-MN2BD225J J AA 2.2 Mohms,1/8W
R577 VRD-MN2BD154J J AA 150 kohms,1/8W
R578 VRD-MN2BD104J J AA 100 kohm,1/8W
R579 VRD-ST2CD153J J AA 15 kohms,1/6W
R580 VRD-MN2BD184J J AA 180 kohms,1/8W
R601~603 VRD-ST2CD102J J AA 1 kohm,1/6W
R604,605 VRD-MN2BD103J J AA 10 kohm,1/8W
R606,607 VRD-MN2BD392J J AA 3.9 kohms,1/8W
R608,609 VRD-MN2BD122J J AA 1.2 kohms,1/8W
R610,611 VRD-MN2BD222J J AA 2.2 kohms,1/8W
R612,613 VRD-MN2BD391J J AA 390 ohms,1/8W
R614,615 VRD-MN2BD332J J AA 3.3 kohms,1/8W
R616 VRD-ST2CD222J J AA 2.2 kohms,1/6W
R617 VRD-MN2BD222J J AA 2.2 kohms,1/8W
R618,619 VRD-ST2CD331J J AA 330 ohms,1/6W
R620,621 VRD-MN2BD223J J AA 22 kohms,1/8W
R622,623 VRD-MN2BD224J J AA 220 kohms,1/8W
R690,691 VRD-MN2BD682J J AA 6.8 kohms,1/8W
R692,693 VRD-MN2BD333J J AA 33 kohms,1/8W
R702~704 VRD-ST2CD102J J AA 1 kohm,1/6W
R705~707 VRD-MN2BD102J J AA 1 kohm,1/8W

PRICE

RANK

DESCRIPTION

– 3 –

CD-BK250W/CD-BK2600W/CD-BK270W

NO. PARTS CODE

R708~712 VRD-ST2CD102J J AA 1 kohm,1/6W
R713~717 VRD-MN2BD102J J AA 1 kohm,1/8W
R718~721 VRD-ST2CD102J J AA 1 kohm,1/6W
R724,725 VRD-ST2CD102J J AA 1 kohm,1/6W
R726~728 VRD-ST2CD222J J AA 2.2 kohms,1/6W
R729 VRD-ST2CD102J J AA 1 kohm,1/6W
R731 VRD-MN2BD103J J AA 10 kohm,1/8W
R732,733 VRD-MN2BD102J J AA 1 kohm,1/8W
R734~736 VRD-ST2CD102J J AA 1 kohm,1/6W
R738 VRD-ST2CD223J J AA 22 kohms,1/6W
R739,740 VRD-ST2CD102J J AA 1 kohm,1/6W
R741 VRD-MN2BD102J J AA 1 kohm,1/8W
R746~748 VRD-MN2BD102J J AA 1 kohm,1/8W
R749~751 VRD-MN2BD104J J AA 100 kohm,1/8W
R752 VRD-MN2BD330J J AA 33 ohms,1/8W
R753 VRD-MN2BD102J J AA 1 kohm,1/8W
R754 VRD-MN2BD103J J AA 10 kohm,1/8W
R755 VRD-MN2BD102J J AA 1 kohm,1/8W
R756 VRD-MN2BD103J J AA 10 kohm,1/8W
R758~760 VRD-MN2BD103J J AA 10 kohm,1/8W
R761 VRD-MN2BD103J J AA 10 kohm,1/8W
R765 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R766~768 VRD-MN2BD103J J AA 10 kohm,1/8W
R769 VRD-ST2CD102J J AA 1 kohm,1/6W
R770 VRD-ST2CD103J J AA 10 kohm,1/6W
R771 VRD-MN2BD103J J AA 10 kohm,1/8W
R772 VRD-ST2CD103J J AA 10 kohm,1/6W
R773 VRD-ST2CD102J J AA 1 kohm,1/6W
R774 VRD-MN2BD103J J AA 10 kohm,1/8W
R777~779 VRD-MN2BD103J J AA 10 kohm,1/8W
R781 VRD-MN2BD473J J AA 47 kohms,1/8W
R782 VRD-MN2BD104J J AA 100 kohm,1/8W
R783 VRD-MN2BD101J J AA 100 ohm,1/8W
R901,902 VRD-ST2CD223J J AA 22 kohms,1/6W
R903 VRD-RT2HD332J J AA 3.3 kohms,1/2W
R904 VRD-ST2CD222J J AA 2.2 kohms,1/6W
R905 VRD-ST2CD473J J AA 47 kohms,1/6W
R906 VRD-ST2CD100J J AA 10 ohm,1/6W
R907 VRD-ST2CD123J J AA 12 kohms,1/6W
R908 VRD-ST2EE561J J AA 560 ohms,1/4W
R909 VRD-ST2CD223J J AA 22 kohms,1/6W
R930 VRD-ST2CD104J J AA 100 kohm,1/6W
R931 VRD-MN2BD104J J AA 100 kohm,1/8W
R932,933 VRD-MN2BD563J J AA 56 kohms,1/8W
R934 VRD-MN2BD102J J AA 1 kohm,1/8W
R935 VRD-ST2CD102J J AA 1 kohm,1/6W
R936,937 VRD-MN2BD821J J AA 820 ohms,1/8W
R938,939 VRD-MN2BD563J J AA 56 kohms,1/8W
R940,941 VRD-MN2BD102J J AA 1 kohm,1/8W
R942 VRD-MN2BD223J J AA 22 kohms,1/8W

1 R943,944 VRG-ST2EC101J J AB 100 ohm,1/4W,Fusible

R945~948 VRN-VV3DAR22J J AC 0.22 ohms,2W
R949,950 VRN-VV3AAR10J J AB 0.1 ohm,1W
R951 VRD-MN2BD102J J AA 1 kohm,1/8W
R952 VRD-ST2CD102J J AA 1 kohm,1/6W
R953 VRD-MN2BD152J J AA 1.5 kohms,1/8W
R954 VRD-ST2CD152J J AA 1.5 kohms,1/6W
R955~957 VRD-MN2BD563J J AA 56 kohms,1/8W
R958,959 VRD-ST2EE4R7J J AA 4.7 ohms,1/4W
R967,968 VRD-ST2CD472J J AA 4.7 kohms,1/6W
R969 VRD-RT2HD4R7J J AA 4.7 ohms,1/2W
R970 VRD-RT2HD102J J AA 1 kohm,1/2W
R971 VRD-ST2CD683J J AA 68 kohms,1/6W
R972 VRD-ST2CD153J J AA 15 kohms,1/6W
R973 VRD-ST2CD473J J AA 47 kohms,1/6W
R977,978 VRD-ST2EE470J J AA 47 ohms,1/4W
R981,982 VRD-RT2HD681J J AA 680 ohms,1/2W
R983 VRD-ST2CD224J J AA 220 kohms,1/6W
R984 VRD-ST2CD473J J AA 47 kohms,1/6W
R986 VRD-RT2HD681J J AA 680 ohms,1/2W
R988 VRD-RT2HD681J J AA 680 ohms,1/2W
RD01 VRD-MN2BD681J J AA 680 ohms,1/8W
RD02 VRD-MN2BD821J J AA 820 ohms,1/8W
RD03 VRD-ST2CD102J J AA 1 kohm,1/6W
RD04 VRD-MN2BD152J J AA 1.5 kohms,1/8W
RD05 VRD-MN2BD222J J AA 2.2 kohms,1/8W
RD06 VRD-MN2BD272J J AA 2.7 kohms,1/8W
RD07 VRD-MN2BD392J J AA 3.9 kohms,1/8W
RD08 VRD-ST2CD562J J AA 5.6 kohms,1/6W
RD09 VRD-MN2BD103J J AA 10 kohm,1/8W
RD10 VRD-MN2BD183J J AA 18 kohms,1/8W
RD11 VRD-MN2BD333J J AA 33 kohms,1/8W

PRICE
RANK

DESCRIPTION

NO.

RD12 VRD-MN2BD104J J AA 100 kohm,1/8W
RD13 VRD-MN2BD681J J AA 680 ohms,1/8W
RD14 VRD-MN2BD821J J AA 820 ohms,1/8W
RD15 VRD-ST2CD182J J AA 1.8 kohms,1/6W
RD16 VRD-ST2CD392J J AA 3.9 kohms,1/6W
RD17 VRD-MN2BD184J J AA 180 kohms,1/8W
RD18 VRD-MN2BD681J J AA 680 ohms,1/8W
RD19 VRD-ST2CD821J J AA 820 ohms,1/6W
RD20 VRD-MN2BD102J J AA 1 kohm,1/8W
RD21 VRD-MN2BD152J J AA 1.5 kohms,1/8W
RD22 VRD-MN2BD222J J AA 2.2 kohms,1/8W
RD23 VRD-MN2BD272J J AA 2.7 kohms,1/8W
RD24 VRD-MN2BD392J J AA 3.9 kohms,1/8W
RD25 VRD-MN2BD562J J AA 5.6 kohms,1/8W
RD26 VRD-ST2CD103J J AA 10 kohm,1/6W
RD27 VRD-MN2BD183J J AA 18 kohms,1/8W
RD28 VRD-ST2CD333J J AA 33 kohms,1/6W
RD29 VRD-MN2BD104J J AA 100 kohm,1/8W
RD30 VRD-MN2BD562J J AA 5.6 kohms,1/8W
RK1 VRD-ST2CD103J J AA 10 kohm,1/6W
RK2,3 VRD-ST2CD563J J AA 56 kohms,1/6W
RK4 VRD-ST2CD103J J AA 10 kohm,1/6W
RK5 VRD-ST2CD102J J AA 1 kohm,1/6W
RK7 VRD-ST2CD102J J AA 1 kohm,1/6W
RK8 VRD-ST2CD562J J AA 5.6 kohms,1/6W
RK9~11 VRD-ST2CD102J J AA 1 kohm,1/6W
RK12 VRD-ST2CD101J J AA 100 ohm,1/6W
RK13 VRD-ST2CD122J J AA 1.2 kohms,1/6W
RK14,15 VRD-RT2HD101J J AA 100 ohm,1/2W
RK36,37 VRD-ST2CD391J J AA 390 ohms,1/6W
RK38 VRD-ST2CD101J J AA 100 ohm,1/6W
RK39,40 VRD-ST2CD102J J AA 1 kohm,1/6W
RK41,42 VRD-ST2CD103J J AA 10 kohm,1/6W
RK43 VRD-ST2CD183J J AA 18 kohms,1/6W
RK44,45 VRD-ST2CD682J J AA 6.8 kohms,1/6W
RK46 VRD-ST2CD183J J AA 18 kohms,1/6W
RK47 VRD-ST2CD822J J AA 8.2 kohms,1/6W
RK48 VRD-ST2CD103J J AA 10 kohm,1/6W
RK49,50 VRD-ST2CD103J J AA 10 kohm,1/6W

PRICE

RANK

DESCRIPTIONPARTS CODE

OTHER CIRCUITRY PARTS

BI4/CNS4 QCNWN1572AWZZ J AF Connector Ass’y,6/6Pin
BI102/CNS102 QCNWN1974AWZZ J Connector Ass’y,7/6Pin
BI601/CNS601 QCNWN1842AWZZ J AG Connector Ass’y,6/6Pin
BI701/CNS8 QCNWN1843AWZZ J AH Connector Ass’y,9/9Pin
BI902/CNS902 QCNWN1875AWZZ J AH Connector Ass’y,10/10Pin
BI903/CNS903 QCNWN2028AWZZ J Connector Ass’y,3/3Pin

BIK1/CNSK1 QCNWN1876AWZZ J Connector Ass’y,10/10Pin
CNP1 QCNCM704GAWZZ J AC Plug,7Pin
CNP2 QCNCM704HAWZZ J AC Plug,8Pin
CNP3 92LCONE6P53253 J AC Plug,6Pin
CNP4 QCNCM705FAFZZ J AB Plug,6Pin
CNP7 92LCONE6P53254 J AC Plug,6Pin
CNP8 92LCONE9P53254 J AD Plug,9Pin
CNP101 QCNCM705CAFZZ J AA Plug,3Pin
CNP301 92LCONE2P5268 J AB Plug,2Pin
CNP701 QCNCWZX32AWZZ J Socket,32Pin
CNP902 92LCONEAP5267 J AC Plug,10Pin
CNP971 92LCONE2P53253 J AB Plug,2Pin
CNP981 92LCONE5P52287 J AC Plug,5Pin
CNPK1 QCNCM705KAWZZ J AC Plug,10Pin
CNR1 92LCONE3P53253 J AB Plug,3Pin [CD-BK270W Only]
CNS1A/B QCNWN1537AWZZ J AG Connector Ass’y,7/7Pin
CNS2A/B QCNWN1538AWZZ J AG Connector Ass’y,8/8Pin
CNS3A/B QCNWN1539AWZZ J AE Connector Ass’y,6/6Pin
CNS701 QCNCWZF32AWZZ J Socket,32Pin
CNS702 QCNCWZY10AWZZ J Socket,10Pin
CNS971 QCNWN1389AWZZ J AC Connector Ass’y,2Pin

1 F901,902 QFS-D402CAWNI J AC Fuse,T4A L 250V
1 F903,904 QFS-D202CAWNI J AC Fuse,T2A L 250V

FFC701 QCNWN1878AWZZ J Flat Cable,32Pin
FFC702 QCNWN1845AWZZ J Flat Cable,10Pin
FL701 VVKBJ749GNK-1 J BD FL Display
FW981 QCNWN1836AWZZ J AD Flat Wire,5Pin
JK1 QJAKJ0007AWZZ J AF Jack,Mic
JK690 QSOCJ0219AWZZ J AD Jack,Video/AUX In
JK701 QJAKM0004AWZZ J AK Jack,Headphones
LG1 QLUGP0001AWZZ J AC Lug

1 LUG1,2 92LLUG1746A J AA Lug

M1 92LMTR2790CASY J BB Motor with Chassis [Spindle]
M2 92LMTR1854BASY J AP Motor with Gear [Sled]

[CD-BK270W Only]

– 4 –

CD-BK250W/CD-BK2600W/CD-BK270W

NO.

M3 92LTWMEN7E6Y J AR Motor with Worm Pulley
M901 RMOTV0027AWZZ J AM Motor,Air Cooling Fan

PINK1 QLUGP0002AWZZ J AB Lug
RL914 RRLYD0016AWZZ J AH Relay
RX701 VHLN63H380A-1 J AK Remote Sensor,N63H380A
SO302 QTANC0206AWZZ J AD FM Antenna Terminal
SO901 QTANA0417AWZZ J AE Terminal,Speaker
SR1 QTANA0420AWZZ J Terminal,Surround Speaker

SW1 SWMPU10780MLB J AH Switch,Push Type [Open/Close]
SW2 SWMPU11470MLB J AE Switch,Push Type [Clamp]
SW3 SWMPU11470MLB J AE Switch,Push Type [Disc Number]
SW4 QSWF9001AW01 J AD Switch,Push Type [Pickup In]
SW601 QSW-S0024AWZZ J AE Switch,Slide Type
SW701 92LSWICHT1663T J AC Switch,Key Type [On/Stand-by]
SW702 92LSWICHT1663T J AC Switch,Key Type [Clock]
SW703 92LSWICHT1663T J AC Switch,Key Type [Timer/Sleep]
SW712 92LSWICHT1663T J AC Switch,Key Type [Disc Skip]
SW713 92LSWICHT1663T J AC Switch,Key Type [Open/Close]
SW714 92LSWICHT1663T J AC Switch,Key Type [Dimmer]
SW715 92LSWICHT1663T J AC Switch,Key Type [X-Bass/Demo]
SW716 92LSWICHT1663T J AC Switch,Key Type [Equalizer]
SW717 92LSWICHT1663T J AC Switch,Key Type [Volume Up]
SW718 92LSWICHT1663T J AC Switch,Key Type [Volume Down]
SW719 92LSWICHT1663T J AC Switch,Key Type
SW720 92LSWICHT1663T J AC Switch,Key Type [CD]
SW721 92LSWICHT1663T J AC Switch,Key Type [Tape]
SW722 92LSWICHT1663T J AC Switch,Key Type [Tuning Down]
SW723 92LSWICHT1663T J AC Switch,Key Type [Memory/Set]
SW724 92LSWICHT1663T J AC Switch,Key Type [Rewind]
SW725 92LSWICHT1663T J AC Switch,Key Type [Fast forward]
SW726 92LSWICHT1663T J AC Switch,Key Type [Play]
SW727 92LSWICHT1663T J AC Switch,Key Type [Stop]
SW728 92LSWICHT1663T J AC Switch,Key Type [Reverse Play]
SW729 92LSWICHT1663T J AC Switch,Key Type [Rec/Pause]
SW730 92LSWICHT1663T J AC Switch,Key Type [Tuning Up]
SW731 92LSWICHT1663T J AC Switch,Key Type [Video/Aux]
SW732 92LSWICHT1663T J AC Switch,Key Type [Tuner (Band)]

1 SW801 QSOCE0009AWZZ J AH Switch,Slide Type

PARTS CODE

PRICE
RANK

DESCRIPTION

[T/T Up Down Loading]

[CD-BK270W Only]

[Span Selector]

[Reverse Mode]

[Voltage Selector]

CD MECHANISM PARTS

301 NGERH0011AWZZ J AC Gear,Middle
302 NGERH0012AWZZ J AC Gear,Drive
303 MLEVP0080AWZZ J AC Rail,Guide
304 NSFTM0020AWFW J AD Shaft,Guide
305 92LM-CUSN1524A J AC Cushion

1 306 92LHPC1LXASY J BD Pickup Unit Ass’y

306- 1 ———— — Pickup Unit
306- 2 NGERR0043AFZZ J AC Gear,Rack

306- 3 MSPRC0961AFZZ J AA Spring,Rack
701 XBSSD26P06000 J AA Screw,ø2.6×6mm
702 XHBSD20P05000 J AA Screw,ø2×5mm
703 XBBSD20P03000 J AA Screw,ø2×3mm
704 LX-WZ1070AFZZ J AA Washer,ø1.5×3.8×0.25mm
M1 92LMTR2790CASY J BB Motor with Chassis [Spindle]
M2 92LMTR1854BASY J AP Motor with Gear [Sled]
SW4 QSW-F9001AW01 J AD Switch,Leaf Type [Pickup In]

(Not Replacement Item)

CABINET PARTS

201 92LCAB3563AASY J Front Panel Ass’y
201 92LCAB3567AASY J Front Panel Ass’y
201 92LCAB3747AASY J Front Panel Ass’y

201- 1 ———— — Front Panel
201- 2 GDORF0099AWSA J AE Holder,Cassette [Tape 1]

201- 3 GDORF0100AWSA J AE Holder,Cassette [Tape 2]
201- 4 GCOVA1349AWSA J AG Cover,Cassette [Tape 1]

201- 4 GCOVA1349AWSB J AH Cover,Cassette [Tape 1]
201- 5 GCOVA1388AWSA J Cover,Cassette [Tape 2]
201- 5 GCOVA1388AWSB J Cover,Cassette [Tape 2]

[For CD-BK250W]
[For CD-BK2600W]
[For CD-BK270W]

(Not Replacement Item)

[For CD-BK250W/CD-BK270W]
[For CD-BK2600W]
[For CD-BK250W/CD-BK270W]
[For CD-BK2600W]

NO. PARTS CODE

201- 6 HDECQ0686AWSA J AE Panel,Cassette [Tape 1]
201- 7 HDECQ0687AWSA J AE Panel,Cassette [Tape 2]
201- 8 HDECQ0748AWSA J Panel,Amp. [For CD-BK250W]
201- 8 HDECQ0749AWSA J Panel,Amp. [For CD-BK2600W]
201- 8 HDECQ0775AWSA J Panel,Amp. [For CD-BK270W]
201- 9 JKNBZ0808AWSA J AE Button,Power

201- 9 JKNBZ0808AWSB J AE Button,Power
201-10 JKNBZ0778AWSA J AF Button,Dimmer/Tuning

201-10 JKNBZ0778AWSB J AG Button,Dimmer/Tuning
201-11 JKNBZ0779AWSA J AF Button,Function

201-12 HDECQ0690AWSA J AC Volume Ring
201-13 JKNBZ0780AWSA J AF Button,Disc Control

201-13 JKNBZ0780AWSB J AF Button,Disc Control
201-14 JKNBZ0804AWSA J Button,Center Operation

201-15 GCOVA1351AWSA J AB Cover,Operation LED A
201-16 MLIFP0008AWZZ J AD Damper
201-17 MSPRD0092AWFJ J AB Spring,Cassette [Tape 1]
201-18 MSPRD0093AWFJ J AB Spring,Cassette [Tape 2]
201-19 JKNBZ0783AWSA J AF Button,X-Bass/Equalizer
201-20 PSHEP0063AWZZ J AB Filter,Remote Sensor
201-21 LHLDZ1328AWZZ J AC Holder,Cassette Lock
201-22 MSPRC0029AWFJ J AB Spring,Cassette Lock
201-23 MLOKC0006AWZZ J AB Lock Lever Cassette [Tape 1]
201-24 MLOKC0007AWZZ J AB Lock Lever Cassette [Tape 2]
201-25 JKNBZ0805AWSA J AE Button,Volume
201-26 92LBADGE1671A J AC Badge,SHARP
202 92LCAB3561BASY J AN Side Panel Ass’y,Left

202 92LCAB3565BASY J AN Side Panel Ass’y Left

202- 1 ———— — Side Panel,Left
202- 2 PCUSG0022AWZZ J AB Cushion,Leg

203 92LCAB3561CASY J AN Side Panel Ass’y,Right
203 92LCAB3565CASY J AN Side Panel Ass’y Right

203- 1 ———— — Side Panel,Right
203- 2 PCUSG0022AWZZ J AB Cushion,Leg

204 GCAB-1194AWSA J AP Cabinet,Top
204 GCAB-1194AWSB J AP Cabinet,Top [For CD-BK2600W]

205 JKNBK0012AWSG J AK Knob,Karaoke
206 GCOVA1348AWSA J AH Cover,CD Tray
207 GITAR0736AWSA J Rear Panel [For CD-BK250W]
207 GITAR0737AWSA J Rear Panel [For CD-BK2600W]
207 GITAR0784AWSA J Rear Panel [For CD-BK270W]
211 LANGK0252AWFW J AE Bracket,Fan Support
212 LBSHC0002AWZZ J AD Bushing,AC Power Supply Cord
213 LCHSM0122AWFW J AN Chassis,Main
214 LHLDZ1332AWZZ J AD Holder,FL Display
215 TSPC-0887AWZZ J Label,Specifications

215 TSPC-0888AWZZ J Label,Specifications
215 TSPC-0889AWZZ J Label,Specifications

215 TSPC-0893AWZZ J Label,Specifications
215 TSPC-0894AWZZ J Label,Specifications
215 TSPC-0895AWZZ J Label,Specifications

215 TSPC-0943AWZZ J Label,Specifications
215 TSPC-0944AWZZ J Label,Specifications
215 TSPC-0945AWZZ J Label,Specifications

218 NFANP0001AWZZ J AD Rotary Fan
219 PCUSG0022AWZZ J AB Cushion,Leg
220 PRDAR0188AWFW J AR Heat Sink,Main

1 222 QACCA0003AW00 J AL AC Power Supply Cord

PRICE

RANK

DESCRIPTION

[For CD-BK250W/CD-BK270W]

[For CD-BK250W/CD-BK270W]
[For CD-BK2600W]

[For CD-BK250W/CD-BK270W]
[For CD-BK2600W]

[For CD-BK250W/CD-BK270W]
[For CD-BK2600W]

(Not Replacement Item)

[For CD-BK250W/CD-BK270W]
[For CD-BK2600W]

(Not Replacement Item)

[For CD-BK250W/CD-BK270W]

[CD-BK250W for Taiwan]
[CD-BK250W for Thailand]
[CD-BK250W Except for

Taiwan/Thailand]
[CD-BK2600W for Taiwan]
[CD-BK2600W for Thailand]
[CD-BK2600W Except for

Taiwan/Thailand]
[CD-BK270W for Taiwan]
[CD-BK270W for Thailand]
[CD-BK270W Except for

Taiwan/Thailand]

[For CD-BK2600W]

– 5 –

CD-BK250W/CD-BK2600W/CD-BK270W

NO. PARTS CODE

1 222 QACCE0010AW00 J AK AC Power Supply Cord
1 222 QACCJ0007AW00 J AK AC Power Supply Cord
1 222 QACCL0005AW00 J AN AC Power Supply Cord

223 QCNWN1844AWZZ J AC Lug Wire

1 224 QFSHD0001AWZZ J AB Holder,Fuse

225 92LBE231616 J AD Belt
226 92LCSPR1431C J AA Spring,Ring
227 92LEVA0330702 J AD Velvet Carpet,Chassis
228 92LMAG0104302 J AE Magnet
229 92LMT0304302 J AB Plate,Metal
230 92LNBAND1318A J AA Nylon Band,80mm
231 92LNM0305401 J AB Velvet Carpet
232 92LPT0303002 J AB Roller
233 92LPT0304303 J AB Lever,Stop
234 92LPT0304304 J AB Stopper
235 92LPT0304305 J AE Lever,Lock
236 92LPT0304306 J AG Stabilizer
237 92LPT0304307 J AC Support,Cam
238 92LPT0304308 J AB Lock Gear Pin
239 92LPT0304309 J AB Cap,Pulley Stopper
240 92LPT0305413 J AG Cam Gear Lower
241 92LPT0309506 J AD Gear,Turntable Drive
242 92LPT0309507 J AD Gear,Open/Close Drive
243 92LPT0309508 J AD Gear,Planet
244 92LPT0309509 J AD Gear,Drive
245 92LPT0309510 J AE Gear,Pulley
246 92LPT0309511 J AD Gear,Middle
247 92LPT0311101 J AB Lever,Clamp
248 92LPT0311102 J AC Lever,Disc
249 92LPT0312005 J AL Gear,Cam
250 92LPT0320201 J AE Support,Stabilizer
251 92LPT0330301 J AU Chassis,Loading
252 92LPT0330803 J AK CD,Chassis
253 92LPT0331003 J AT Chassis,Slide
254 92LPT0331105 J AM Turntable
255 92LSP0304303 J AB Spring,Stopper
256 92LSP0304305 J AB Spring,Lock
257 92LSP0304306 J AB Spring,Lock Gear
258 KMECB0018AWZZ J BE Tape Mechanism Ass’y
258- 1 92PF513-853 J BL Head Plate Block [Tape 2]
258- 2 92PF525-336 J Motor with Pulley [Tape]
258- 3 92PF567-677 J Tape Mechanism PWB Ass’y
258- 4 92PFF19N-21 J Belt,Main [Tape 2]
258- 5 92PF514-133 J AL Pinch Roller
258- 6 92PF19S-31 J Belt,FF/REW [Tape 2]
258- 7 92PFF19N-11 J Belt,Main [Tape 1]
258- 8 92PF522-061 J Clutch Ass’y Block [Tape 1]
258- 9 92PFF19S-52 J Belt,FF/REW [Tape 1]
258-10 92PF513-861 J Head Plate Block [Tape 1]
258-11 92PF522-063 J Clutch Ass’y Block [Tape 2]
259 PCOVQ3002AWZZ J AL Fan Cover
260 92LCAUT1706B J AA Label,Laser
261 92LCAUT1706A1 J AC Label,Class 3
262 LANGK0287AWFW J AC Bracket, Transformer Support
601 LX-BZ2222AXZZ J AB Screw,Special
602 XJBSD30P12000 J AA Screw,ø3×12mm
603 LX-JZ0010AFFD J AA Screw,ø3×10mm
604 XEBSD26P08000 J AA Screw,ø2.6×8mm
605 XBBSD20P04000 J AA Screw,ø2×4mm
606 XEBSD30P10000 J AA Screw,ø3×10mm
607 XEBSD30P12000 J AA Screw,ø3×12mm
608 XESSD30P10000 J AA Screw,ø3×10mm
610 XJBSD30P10000 J AA Screw,ø3×10mm
611 XJBSD30P14000 J AA Screw,ø3×14mm
613 XJSSD30P10000 J AA Screw,ø3×10mm
614 92LSC0308MBZI J AB Screw,ø3×8mm
615 92LSC0308RBZI J AB Screw,ø3×8mm
616 XHBSD40P08000 J AA Screw,ø4×8mm

PRICE
RANK

DESCRIPTION

ACCESSORIES/PACKING PARTS

1 QPLGA0003AWZZ J AF Adaptor,AC Plug
1 QPLGA0004AWZZ J AF Adaptor,AC Plug

QANTL0008AWZZ J AH AM Loop Antenna

SPAKA0300AWZZ J AM Packing Add.
SPAKC1145AWZZ J Packing Case

[CD-BK250W Except for
Australia/New Zealand]

SPAKC1237AWZZ J Packing Case

[CD-BK250W for Australia/New
Zealand]

NO.

PRICE

RANK

SPAKC1238AWZZ J Packing Case

SPAKC1239AWZZ J Packing Case

SPAKC1258AWZZ J Packing Case

SPAKC1259AWZZ J Packing Case

SPAKP0013AWZZ J AC Polyethylene Bag,Unit
SPAKZ0771AWZZ J AF Center Pad
SPAKZ0773AWZZ J AE Top Pad
SSAKA0007AWZZ J AB Polyethylene Bag,Accessories
TCAUA0061AWZZ J Caution Tag [For Taiwan Only]
TGANE0011AW70 J Warranty Card

TGANE0011AW71 J Warranty Card
TGANE0011AW76 J Warranty Card
TGANZ0028AW74 J Warranty Card
TGANZ0028AW75 J Warranty Card
TGANZ0028AW82 J Warranty Card
TINST0096AWZZ J Operation Manual

TINST0100AWZZ J Operation Manual
TINSZ0691AWZZ J Operation Manual

TINSZ0692AWZZ J Operation Manual

TINSZ0714AWZZ J Operation Manual

TINSZ0715AWZZ J Operation Manual

TLABB0001AWZZ J AB Label,Japan
TLABE0477AWZZ J Label,Bar Code [CD-BK250W]
TLABE0478AWZZ J Label,Bar Code [CD-BK2600W]
TLABE0518AWZZ J Label,Bar Code [CD-BK250W]
TLABE0519AWZZ J Label,Bar Code [CD-BK2600W]
TLABE0575AWZZ J Label,Bar Code [CD-BK270W]
TLABE0579AWZZ J Label,Bar Code [CD-BK270W]
TLABJ0003AWZZ J AB Label,Japan,Packing Case
TLABR1226AWZZ J Label,Bar Code [CD-BK250W]
TLABR1227AWZZ J Label,Bar Code [CD-BK2600W]
TLABZ0838AWZZ J Label,FDA
TLABZ0937AWZZ J Label,Carton

TLABZ0938AWZZ J Label,Feature [Tape 1]

TLABZ0939AWZZ J Label,Feature [Tape 2]
TLABZ0940AWZZ J Label,Carton

TLABZ0951AWZZ J Label,Feature [Tape 1]
TLABZ0963AWZZ J Label,Carton
92LBAG760C J AA Bag,Plug Adaptor

92LFANT1746A J AD FM Antenna
92LGCARD1266E1 J AC Warranty Card
92LLABL1507B J AA Label,Packing Case,MADE IN

92LPANEL713A J AB Panel,MADE IN MALAYSIA
RRMCG0267AWSA J Remote Control
GFTAB1022AWSB J Battery Lid,Remote Control

DESCRIPTIONPARTS CODE

[CD-BK250W for Australia/New
Zealand]

[CD-BK2600W Except for
Australia/New Zealand]

[CD-BK270W for Australia/New
Zealand]

[CD-BK270W Except for
Australia/New Zealand]

[CD-BK250W for Philippines]
[CD-BK2600W for Philippines]
[CD-BK270W for Philippines]
[CD-BK250W for Taiwan]
[CD-BK2600W for Taiwan]
[CD-BK270W for Taiwan]
[CD-BK250W/CD-BK2600W for

Thailand]
[CD-BK270W for Thailand]
[CD-BK250W/CD-BK2600W

Except for Thailand/Australia/
New Zealand]

[CD-BK250W/CD-BK2600W for
Australia/New Zealand]

[CD-BK270W Except for
Thailand/Australia/New Zealand]

[CD-BK270W for Australia/New
Zealand]

[CD-BK250W for Taiwan]
[Except for Australia/New

Zealand]

[CD-BK2600W for Taiwan]
[For Australia/New Zealand]
[CD-BK270W for Thailand]

MALAYSIA

– 6 –

CD-BK250W/CD-BK2600W/CD-BK270W

NO.

PARTS CODE

PRICE
RANK

DESCRIPTION

P.W.B. ASSEMBLY (Not Replacement Item)

1 PWB-A1~3 92LPWB3563MANS J — Main/Power/Transformer

1 PWB-A1~3 92LPWB3747MANS J — Main/Power/Transformer

PWB-B1,2 92LPWB3563DPLS J — Display/Headphones

PWB-C 92LPWB3563CDUS J — CD Servo
PWB-D 92PF567-649 J — Tape Mechanism
PWB-E 92LPC99C017 J AE CD Loading Motor (PWB Only)
PWB-F QPWBF0027AWZZ J AD CD Motor (PWB Only)
PWB-G1 92LPWB3553MICS J — Mic

PWB-G1,2 92LPWB3747MICS J — Mic/Surround Speaker

(Combined Ass’y)
[For CD-BK250W/CD-BK2600W]

(Combined Ass’y)
[For CD-BK270W]

(Combined Ass’y)
[For CD-BK250W/CD-BK2600W]

[For CD-BK250W/CD-BK2600W]
(Combined Ass’y)

[For CD-BK270W]

OTHER SERVICE PART

UDSKA0004AFZZ J AZ CD Pickup Lens Cleaner

CP-BK250/CP-BK2600/CP-BK270

SPEAKER BOX PARTS

901 GBOXS6002AWSB J BB Speaker Box Ass’y
901 GBOXS6003AWSB J BB Speaker Box Ass’y

901-1 QCNWN1833AWZZ J Speaker Cord Ass’y
902 CWAKP1045AWSF J Net Frame Ass’y
902 CWAKP1045AWSE J Net Frame Ass’y
903 HPNLS1020AWSA J AW Front Panel
903 HPNLS1020AWSB J AW Front Panel [For CP-BK2600]

904 LHLDZ8001AWSA J AD Catching Holder
904 LHLDZ8001AWSB J AD Catching Holder

905 PCUSS0048AWZZ J Port Cushion
906 PCUSG0022AWZZ J AB Foot Cushion
907 TSPC-0836AWZZ J Label,Specifications

907 TSPC-0840AWZZ J Label,Specifications
907 TSPC-0906AWZZ J Label,Specifications
908 XJBSD40P12000 J AA Screw,ø4×12mm

909 XJBSD30P10000 J AA Screw,ø3×10mm
SP1,2 RSPA10007AW6W J AX Woofer

SP1,2 RSPA10025AW8W J Woofer [For CP-BK270]
SP3,4 RSPA00008AW6T J AP Tweeter

SP3,4 RSPA00018AW8T J Tweeter [For CP-BK270]

[For CP-BK250/CP-BK270]
[For CP-BK2600]

(With Capacitor C1,2)
[For CP-BK250/CP-BK270]
[For CP-BK2600]
[For CP-BK250/CP-BK270]

[For CP-BK250/CP-BK270]

[For CP-BK2600]

[For CP-BK250]
[For CP-BK2600]
[For CP-BK270]

[For CP-BK250/CP-BK2600]

[For CP-BK250/CP-BK2600]

NO. PARTS CODE

PRICE

RANK

DESCRIPTION

PACKING PARTS

SPAKA0301AWZZ J AK Packing Add.
SSAKH0051AWZZ J AC Polyethylene Bag,Speaker

GBOXS0070AWM1 (CD-BK270W Only)

SURROUND SPEAKER BOX PARTS

901 CWAKP1055AWM3 J Net Frame Ass’y
902 GCAB-1208AWSA J Bottom Cabinet
903 TLABM0128AWZZ J Label,Parts Code
904 XJBSD30P140000 J Screw,ø3×14mm
SP1,2 RSPA10034AWWP J Speaker

– 7 –

CD-BK250W/CD-BK2600W/CD-BK270W

A

306

CD-BK250W/CD-BK2600W/CD-BK270W

701

306-2

304

701

B

306-1

704

306-3

302

C

301

702

D

303

703x2

E

M1

F

305

M2

G

305x2

SW4

PWB-F

H

1

23456

Figure 8 CD MECHANISM EXPLODED VIEW

– 8 –

CD-BK250W/CD-BK2600W/CD-BK270W

CD-BK250W/CD-BK2600W/CD-BK270W

A

B

610x2

C

202

202-2

PWB-B1

214

FL701

202-1

PWB-A1

603

223

603

606x12

603x2

258-1~258-11

FLYWHEEL

258

223

BELT CONNECTION

FF/REW
ROLLER

ASS'Y

ASS'Y

TAPE 2

MAIN BELT

PWB-G2

CD-BK270W

ONLY

218

PWB-D

Tape

Motor

226

608x5

FLYWHEEL

M901

602x3

IC904

FF/REW

ROLLER

ASS'Y

ASS'Y

TAPE 1

605x2

IC903

IC902

211

610x13

610

610x2

610

215

610

610x2

207

610

220

613x2

201-10

201-14

219x2

201-11

201-20

201-24

201-16

201-25

201-22

201-21

604

205

608

201-19

201-13

PWB-G1

601

601

Silicon

Grease

616

213

611x2

616x2

616x2

IC901

262

PT801

PWB-A2

224x8

259

212

PWB-A3

610

222

D

PWB-B2

E

201-21

201-8

F

201-12

G

201-4

601

201-26

201-22

201-16

608

201

201-23

604

201-9

201-15

201-1

201-17

201-2

201-3

201-6

H

201-7

201-5

201-18

230

Note: Only the unit and consumable parts are supplied as parts supply for the Tape mechanism.

1

23456

Figure 9 CABINET EXPLODED VIEW (1/2)

– 9 –

203-1

203-2

203

610x2

CD-BK250W/CD-BK2600W/CD-BK270W

A

CD-BK250W/CD-BK2600W/CD-BK270W

607x2

204

250

B

229
228

254

236

614

C

CD
MECHANISM

D

260

252

242

E

PWB-C

232

241

246

237

255

234

243x4

244

245

249

231
240

239

248

261

PWB-E

607x2

M3

SW3

SW1

SW2

225

232

232

253

F

615

247

227

232x4

G

256

235

251

233

206

257

238

H

1

23456

Figure 10 CABINET EXPLODED VIEW (2/2)

– 10 –

CD-BK250W/CD-BK2600W/CD-BK270W

CP-BK250/CP-BK2600/CP-BK270

A

B

C

SP3,4

TWEETER

SP1,2

WOOFER

C1,2
Capacitor

2.2µF,100V
Electrolytic (N.P.)

C1,2

Capacitor

2.2µF,100V
(N.P.)

SP3,4

TWEETER

RD

RD

SP1,2

WOOFER

BK

BK

907

901

D

SP3,4

909x2

903

E

904x4

902

F

908x4

905x2

SP1,2

906x2

G

906x2

H

1

23456

Figure 11 SPEAKER EXPLODED VIEW (1/2)

– 11 –

GBOXS0070AWM1 (CD-BK270W ONLY)

A

B

C

CD-BK250W/CD-BK2600W/CD-BK270W

SP1,2

903

902

BK
GR

904 x 6

D

SP1,2

901

E

F

SP1,2

G

H

1

23456

Figure 12 SPEAKER EXPLODED VIEW (2/2)

– 12 –

CD-BK250W/CD-BK2600W/CD-BK270W

COPYRIGHT 2001 BY SHARP CORPORATION

©

ALL RIGHTS RESERVED.

No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.

SHARP CORPORATION
AV Systems Group
Audio Systems Division
Higashihiroshima, Hiroshima 739-0192, Japan

Printed in Japan

A0105-1575DS•HA•M

SA • SZ • EX