Sharp CDDK-2600-V Service manual

CD-DK2600V

SERVICE MANUAL

No. S5047CDDK260V

VIDEO CD MINI SYSTEM

CD-DK2600V

NTSC/PAL

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

MODEL

CD-DK2600V Video CD Mini System consisting of CD­DK2600V (main unit) and CP-DK2600 (front speakers),
GBOXS0038AWM1 (center speaker) and GBOXS0039AWM1
(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.

CONTENTS

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

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

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

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

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

DISASSEMBLY.................................................................................................................................................................. 8

REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 11

TEST MODE .................................................................................................................................................................... 12

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

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 16

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

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

VOLTAGE ........................................................................................................................................................................ 44

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 45

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

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

FL DISPLAY......................................................................................................................................................................60

REPLACEMENT PARTS LIST/EXPLODED VIEW

Page

SHARP CORPORATION

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

CD-DK2600V

SAFETY PRECAUTION FOR

SERVICE MANUAL

Precaution to be taken when replacing and servicing the
Laser Pickup.

The AEL (Accessible Emission Level) of Laser Power Output
for this model is specified to be lower than Class 1
However, the following precautions must be observed during
servicing to protect your eyes against exposure to the Laser
beam

(1) When the cabinet has been removed, the power is turned

on without a compact disc, and the Pickup is on a position
outer than the lead-in position, the Laser will light for several
seconds to detect a disc. Do not look into the Pickup Lens.

(2) The Laser Power Output of the Pickup inside the unit and

replacement service parts have already been adjusted prior
to shipping.

(3) No adjustment to the Laser Power should be attempted

when replacing or servicing the Pickup.

(4) Under no circumstances look directly into the Pickup Lens

at any time.

(5) CAUTION - Use of controls or adjustments, or performance

of procedures other than those specified herein may result
in hazardous radiation exposure.

Requirements.

CAUTION

This Video CD Mini System is classified as a CLASS 1
LASER product.

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

Use of controls, adjustments or performance of proce­dures other than those specified herein may result in
hazardous radiation exposure.
As the laser beam used in this compact disc player is
harmful to the eyes, do not attempt to disassemble the
cabinet. Refer servicing to qualified personnel only.

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

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

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

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

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

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

ADVERSEL-USYNLIG LASERSTRALING NAR DEKSEL APNES. STIRR IKKE
INN I STRALEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER.

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 appropriale voltage number appears in the window (110/127/230-240V
AC).

QACCB0006AW00

QACCE0010AW00

QACCJ0007AW00

QACCA0003AW00

QPLGA0003AWZZ QPLGA0004AWZZ

Figure 2 POWER SUPPLY CORD

– 2 –

CD-DK2600V

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

SPECIFICATIONS

General

Power source:

Power
consumption:

Dimensions:

Weight:

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

155 W

Width; 270 mm (10-5/8")
Height; 330 mm (13")
Depth; 332 mm (13-1/16")

8.9 kg (19.6 lbs.)

Amplifier section

Output power: Front speaker

MPO; 200 W (100 W + 100 W)
(10 % T.H.D.)

RMS; 120 W (60 W + 60 W)
(10 % T.H.D.)

RMS; 96 W (48 W + 48 W)
(0.9 % T.H.D.)

Centre speaker

MPO; 50 W (10 % T.H.D.)
RMS; 30 W (10 % T.H.D.)
RMS; 24 W (0.9 % T.H.D.)

Surround speaker

MPO; 50 W (25 W + 25 W)
(10 % T.H.D.)

RMS; 30 W (15 W + 15 W)
(10 % T.H.D.)

RMS; 24 W (12 W + 12 W)
(0.9 % T.H.D.)

Input terminals:

Output terminals:

Video/Auxiliary (audio signal) x 2;
500 mV/47 kohms

Microphone 1/2; 1 mV/600 ohms
Front speakers; 6 ohms
Centre speaker; 6 ohms
Surround speakers; 12 ohms
Headphones; 16-50 ohms (recom-

mended; 32 ohms)
Video out; 1 Vp-p (75 ohms)

Compact disc player section

Type:

Signal readout:

D/A converter:
Frequency

response:
Dynamic range:

3-disc multi-play compact disc
player

Non-contact, 3-beam semi-con­ductor laser pickup

1-bit D/A converter
20 - 20,000 Hz

90 dB (1 kHz)

Video CD section

Video output format:

PAL/PAL 60/NTSC

Tuner section

Frequency range:

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

Cassette deck section

Frequency
response:

Signal/noise ratio:

Wow and flutter:

50 - 14,000 Hz (Normal tape)

55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/play­back)

0.3 % (WRMS)

Front speaker section

Type:

Maximum input
power:

Rated input power:
Impedance:
Dimensions:

Weight:

3-way type [13 cm (5-1/4") woofer,
5 cm (2") tweeter and super tweet­er]

120 W

60 W
6 ohms
Width; 240mm (9-1/2")

Height; 330 mm (13")
Depth; 255mm (10-1/16")

3.9 kg (8.5 lbs.)/each

Centre speaker section

Type:
Maximum input

power:
Rated input power:
Impedance:
Dimensions:

Weight:

10 cm (4") full-range speaker
60 W

30 W
6 ohms
Width; 260 mm (10-1/4")

Height; 140 mm (5-1/2")
Depth; 155 mm (6-1/8")

0.9 kg (2.0 lbs.)

Surround speaker section

Type:
Maximum input

power:
Rated input power:
Impedance:
Dimensions:

Weight:

10 cm (4") full-range speaker
30 W

15 W
12 ohms
Width; 200 mm (7-7/8")

Height; 93 mm (3-11/16")
Depth; 170 mm (6-3/4")

0.5 kg (1.1 lbs.)/each

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

– 3 –

CD-DK2600V

Front panel

1.Disc Tray

2.(VCD/CD) Karaoke Mode Button

3.(VCD) Playback Control Button

4.(VCD) On Screen Display On/Off Button

5.(VCD) Digest Button

6.(VCD) Bookmark Button

7.Bypass Button

8.Normal Button

9.Phantom Button

10.Timer Set Indicator

11.On/Stand-by Button

12.Clock Button

13.Timer/Sleep Button

14.Function Selector Buttons

15.Headphone Socket

16.Dimmer Button

17.Volume Control

18.(VCD/CD) Disc Number Select Buttons

19.Tuning and Time Up/Down Buttons

20.Memory/Set Button

21.(VCD) Skip/Previous Button
(CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Fast Wind Button

22.(VCD) Skip/Next Button
(CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Wind Button

23.Equalizer Mode Selector Button

24.(VCD/CD) Disc Skip Button

25.(VCD/CD) Open/Close Button

26.(TAPE 2) Record Pause Button

27.(TAPE 2) Reverse Play Button

28.(VCD) Stop/Return Button
(CD/TAPE) Stop Butt on

29.(TAPE 2) Reverse Mode Button

30.(VCD/CD) Play/Repeat Button
(TAPE 1) Play Button
(TAPE 2) Forward Play Button

31.Extra Bass/Demo Mode Button

32.Microphone Sockets

33.Microphone Level Controls

34.(TAPE 1) Cassette Compartment

35.(TAPE 2) Cassette Compartment

NAMES OF PARTS

10

11
12
13

14
15

32

1

19

2

26

34

20

3

45

21

28 30

7

6

22 23

29

35

89

24

3127

16
17

18

25

33

Rear panel

1.AC Voltage Selector

2.AC Power Lead

3.FM 75 Ohms Aerial Terminal

4.FM Aerial Earth Terminal

5.AM Loop Aerial Input Socket

6.Surround Speaker Terminals

7.Span Selector Switch

8.Video Output Socket

9.Video/Auxiliary (Audio Signal) Input Sockets

10.Front Speaker Terminals

11.Centre Speaker Terminals

– 4 –

1

2

10

3
4

5
6
7
8

9

11

13 14 15 16 17 18 19

32

1

2

765489101112

Display

1.Extra Bass Indicator

2.Spectrum Analyzer/Volume Level Indicator

3.(VCD/CD) Disc Number Indicators

4.Karaoke Mode Indicator

5.(VCD/CD/TUNER) Memory Indicator

6.(VCD/CD) Pause Indicator

7.(TAPE 2) Record Indicator

8.(VCD/CD) Play Indicator

9.(VCD/CD) Music Schedule Indicators

10.(VCD/CD) More Tracks Indicator

11.Sleep Indicator

12.FM Stereo Mode Indicator

13.(TAPE) Reverse Mode Indicator

14.(TAPE 2) Reverse Play Indicator

15.(TAPE 1) Play Indicator
(TAPE 2) Forward Play Indicator

16.(VCD/CD) Repeat Indicator

17.FM Stereo Indicator

18.Timer Record Indicator

19.Timer Play Indicator

CD-DK2600V

Front speaker

1.Super Tweeter

2.Tweeter

3.Woofer

4.Bass Reflex Ducts

5.Speaker Wire

Center speaker

1.Full-Range Speaker

2.Speaker Wire

Surround speaker

1.Full-Range Speaker

2.Speaker Wire

1
2

3

5

4

– 5 –

CD-DK2600V

Remote control

1.Remote Control Transmitter LED

2.Dolby/Test Button

3.Balance Control Button

4.Surround Level Button

5.Centre Level Button

6.Shift Button

7.(VCD) VCD Auto/On Button

8.(VCD) Playback Control Auto/Off Button

9.Karaoke Mode Button

10.On/Stand-by Button

11.Echo Level Button

12.Vocal Replacer Button

13.(VCD) Direct Search Button

14.(VCD) On Screen Display On/Off Button

15.(VCD/CD) Clear Button

16.(VCD/CD) Memory Button

17.(VCD/CD) Disc Skip Button

18.(VCD) Skip/Previous Button
(CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Fast Wind Button

19.(VCD) Digest/Time Search Button

20.(TAPE 2) Reverse Play Button

21.(VCD) Bookmark Button

22.(VCD) PAL/NTSC Select Button

23.(TAPE 2) Record Pause Button

24.Function Selector Buttons

25.(VCD/CD) Random Button

26.(VCD/CD) Pause Button

27.(VCD) Skip/Next Button
(CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Forward Button

28.(VCD) Play/Repeat/Select/Resume Button
(CD) Play/Repeat Button
(TAPE 1) Play Button
(TAPE 2) Fast Wind Button

29.(VCD) Stop/Return Button
(CD/TAPE) Stop Butt on

30.Extra Bass Button

31.Equalizer Mode Selector Button

32.Volume Up/Down Buttons

18
19
20

21

22

23

24

1

9

2
3

4
5

6

10
11

12

13
7
8

14

15

16

17

25
26

27
28

29
30

31
32

– 6 –

OPERATION MANUAL

SETTING THE CLOCK

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

tem.

1

Press the ON/STAND-BY button to enter the stand-

by mode.2Press the CLOCK button.3Within 5 seconds, press the MEMORY/SET button.

4

Press the TUNING/TIME ( or ) button to select the

time display mode.

Note that this can only be set when the unit is first

installed or it has been reset.

5

Press the MEMORY/SET button.

6

Press the TUNING/TIME ( or ) button to adjust

the hour.

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".

7

Press the MEMORY/SET button.

8

Press the TUNING/TIME ( or ) button to adjust

the minutes.

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 setting will not advance even if minutes

advance from "59" to "00".

9

Press the MEMORY/SET button.

The clock starts operating from "0" second. (Seconds are

not displayed.) And then the clock display will disappear

after a few seconds.

To see the time display:

Press the CLOCK button.

The time display will appear for about 5 seconds.

Note:

The clock display will flash on and off at the push of the

CLOCK button when the AC power supply is restored

after a power failure occurs or after the AC power lead is

disconnected. If this happens, follow the procedure

below to change the clock time.

To change the clock time:

1 Press the CLOCK button.

2 Within 5 seconds, press the MEMORY/SET button.

3 Perform steps 6 - 9 above.

To change the time display mode:

1 Perform steps 1 - 2 in "RESETTING THE MICROCOM-

PUTER".

2 Perform steps 1 - 9 above.

(Main unit operation)

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

23:59)

"AM 0:00" The 12-hour display will appear. (AM 0:00

- PM 11:59)

"AM 12:00" The 12-hour display will appear. (AM

12:00 - PM 11:59)

ON/

STAND-BY

CLOCK

MEMORY/SET

TUNING/

TIME

( )

AM 12:00AM 0:000:00

RESETTING THE MICROCOMPUTER

Reset the microcomputer under the following condi-

tions:

To erase all of the stored memory contents (clock and

timer settings, and tuner and CD presets).

If the display is not correct.

If the operation is not correct.

1

Press the ON/STAND-BY button to enter the stand-

by mode.2Whilst pressing down the button and the X-BASS/

DEMO button, hold down the ON/STAND-BY button

for at least 1 second.

"CLEAR AL" will appear.

Caution:

The operation explained above will erase all data stored

in memory including clock and timer settings, and tuner

and CD presets.

1

2

Connecting the AC power lead

Check the setting of the AC voltage selector located on the

rear panel before plugging the unit into an AC socket. If nec-

essary, adjust the selector to correspond to the AC power

voltage used in your area.

Selector adjustment:

Turn the selector with a screwdriver until the appropriate

voltage number appears in the window (110V, 127V, 220V

or 230V - 240V AC).

Notes:

Plug the AC power lead into an AC socket, after any con-

nections.

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 illustra-

tion ).

AM/FM interval (span)

The International Telecommunication Union (ITU) has

established that member countries should maintain either a

10 kHz or a 9 kHz interval between broadcasting frequen-

cies of any AM station. The illustration shows the 9 kHz

interval zones (regions 1 and 3), and the 10 kHz interval

zone (region 2).

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

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

To change the tuning zone:

1

Press the ON/STAND-BY button to enter the stand-

by mode.

2

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

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

kHz AM interval (100 kHz FM interval).3Whilst pressing down the button and the X-BASS/

DEMO button, hold down the ON/STAND-BY button

for at least 1 second.

"CLEAR AL" will appear.

Caution:

The operation explained above will erase all data stored

in memory including clock and timer settings, and tuner

and CD presets.

To an AC socket

1

2

CD-DK2600V

– 7 –

CD-DK2600V

DISASSEMBLY

Caution on Disassembly

Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:

1. Take cassette tape and compact disc out of the unit.

2. Be sure to remove the power supply plug from the wall
outlet before starting to disassemble the unit.

3. Take off nylon bands or wire holders where they need be
removed when disassembling the unit. After servicing
the unit, be sure to rearrange the leads where they were
before disassembling.

4. Take suffcient care on static electricity of integrated
circuits and other circuits when servicing.

CD-DK2600V

STEP REMOVAL PROCEDURE FIGURE

1 Top Cabinet 1. Screw ..................... (A1) x4 8-1

2 Side Panel 1. Screw ..................... (B1) x8 8-1

(Left/right)

3 CD Player Unit/ 1. Turn on the power supply, 8-2

CD Tray Cover open the disc tray, take out

the CD cover, and close.
(Note 1)

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

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

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

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

4 Rear Panel 1. Screw ..................... (D1) x11 8-2

5 Main PWB 1. Screw ..................... (E1) x3 8-2

2. Socket .................... (E2) x3 9-3

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

4. Lug Wire................. (E4) x1

5. Socket .................... (E5) x1

6

Power Supply PWB

7 Front Panel 1. Screw ..................... (G1) x2 9-3

8 Karaoke PWB 1. Screw ..................... (H1) x2 9-4

9 Display PWB/ 1. Screw .....................

Headphones PWB

10

Tape Mechanism

11 Turntable 1. Hook....................... (L1) x2 9-5

12 Disc Tray 1.

13 CD Video PWB 1. Screw ..................... (N1) x1 10-1

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

14 CD Mechanism 1. Hook ....................... (P1) x2 10-2

15

Loading Motor PWB

1. Screw ..................... (F1) x1 9-3

2. Socket .................... (F2) x5

3. Flat Wire................. (F3) x1 9-4

(J1) x14

2. Flat Cable .............. (J2) x1

1. Open the cassette holder 9-4

2. Screw ..................... (K1) x5

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

Turn fully the lock lever in the

arrow direction.

2.

While holding the lock lever,rotate
the cam gear until the cam gear
rib engages with the clamp lever.

3.

Push the slide holder backward to

engage the claw with the groove
and remove it in the direction

of the arrow. ..............

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

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

1. Hook....................... (Q1) x5 10-2

(M1) x6

9-4

9-1

9-2

9-6

Note 1:

How to open the changer manually. (Fig. 9-1)

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

While holding the lock lever, rotate the cam gear anticlockwise

2.
until the cam gear rib engages with the clamp lever.

3. After that, push forward the CD slide holder.

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-DK2600V

Side Panel
(Right)

(B1)x2
ø3x10mm

(B1)x4
ø3x10mm

(A1)x2
ø3x12mm

Rear
Panel

Top Cabinet

(B1)x2
ø3x10mm

Figure 8-1

CD Video
PWB

(C4)x3

1

(C3) x1

Pull

Rear
Panel

(C1)x1
ø3x10mm

(D1)x9
ø3x10mm

Main PWB

DC Tray Cover

Pull

(D1)x2
ø3x10mm

Figure 8-2

– 8 –

(Fig. 9-2)

(A1)x2
ø3x12mm

Side Panel
(Left)

(C2) x3

1

2

CD Player
Unit

(C3)x1

(E1)x1
ø3x6mm

(E1)x2
ø3x10mm

CD-DK2600V

Figure 9-1

LOCK LEVER

CLAMP LEVER

CAM GEAR RIB

Karaoke
PWB

(H1)x2
ø3x10mm

(J1)x13
ø3x10mm

Tape
Mechanism

(K1)x5
ø3x10mm

(J1)x1
ø3x10mm

(J2)x1

Display PWB

(F3)x1

Headphones
PWB

Open

Cassette
Holder

Lug Wire

Figure 9-4

(L2) x1

Turntable

(E2)x2

Power
Supply
PWB

(F2)x1

(F2)x4

(E5)x1

Tape
Mechanism

(E4)x1

(E3)x1

Figure 9-2

(G1)x2
ø3x10mm

(F1)x1
ø3x10mm

Power
Supply
PWB

Main PWB

(E2)x1

(L1) x2

Disc Tray

CD Player Unit

Figure 9-5

(M1) x3

3

2

1

(M1) x3

Figure 9-3

Figure 9-6

– 9 –

CD-DK2600V

(N2) x2

(N3) x2

(N1)x1
ø3x8mm

(N3) x2

CD Video

PWB

Figure 10-1

CD Player

Base

CD
Mechanism

(P1) x1

(P2) x3

(P1) x1

Figure 10-2

Loading
Motor
PWB

(Q1) x5

CP-DK2600

STEP REMOVAL PROCEDURE FIGURE

1 Front Panel 1. Front Panel ............ (A1) x1 10-3

2 Woofer 1. Screw ..................... (B1) x4 10-4

4 Tweeter 1. Screw ..................... (C1) x2 10-4

5 Super Tweeter 1. Screw ..................... (D1) x2 10-4

(A1)x1

CP-DK2600

(D1)x2

Ø3x10mm
(C1)x2

Ø3x10mm

(B1)x4

Ø4x12mm

Screw Driver

Figure 10-3

Woofer

Figure 10-4

– 10 –

REMOVING AND REINSTALLING THE MAIN PARTS

TAPE MECHANISM SECTION

Perform steps 1 to 7 and 10 of the disassembly method to
remove the tape mechanism.

How to remove the record/playback and erase
heads (TAPE 2) (See Fig. 11-1)

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

How to remove the playback head (TAPE 1)
(See Fig. 11-2)

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

Erase Head

(A1)x2
Ø2 x 5mm

TAPE 2

Figure 11-1

TAPE 1

CD-DK2600V

Record/Playback
Head

How to remove the pinch roller (TAPE 1/2)
(See Fig. 11-3)

1. Carefully push the inside claw to remove it. 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.

How to remove the belt (TAPE 1) (See Fig. 11-4)

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 2) (See Fig. 11-4)

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. 11-5)

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

(B1)x2
Ø2 x 9mm

Pinch Roller
(C1)x1

Figure 11-2

<B>

Figure 11-3

Playback
Head

Pinch Roller
Pawl

<A>

(F1) x2

Ø 2.6 x 5mm

Motor

– 11 –

TAPE 2

FF/REW
Belt
(E2)x1

Main Belt

Figure 11-4Figure 11-5

Motor

TAPE 2
Main Belt
(E1)x1

Motor

TAPE 1
Main Belt
(D1)x1

TAPE 1
FF/REW

Belt
(D2)x1

CD-DK2600V

(A1)x2

(A1)x1

Loading Motor

CD Base

(A1)x2

(B1) x2
ø2.6 x6mm

Shaft
(B2) x1

Stop Washer
(B3) x1

Gear
(B4) x1

CD Mechanism

Pickup

CD MECHANISM SECTION

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

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

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

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

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

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

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.

Figure 12-1

During POWER OFF mode, push below each 2 keys [ON/STAND-BY] key.
Then go to each TEST MODE.

Figure 12-2

TEST MODE

KEY TEST MODE CONTENTS

[ON/STAND-BY] [TUNER] + [X-BASS] TEST 1 TUNER PRESET MEMORY CLEAR

[ON/STAND-BY] [MEMORY/SET] + [X-BASS] TEST 2 TUNER PRESET FOR PRODUCTION

[ON/STAND-BY] [ ] + [X-BASS] TEST 3 KEY AND DISPLAY TEST

[ON/STAND-BY] [CD] + [X-BASS] TEST 4 CD TEST MODE

[ON/STAND-BY] [TAPE] + [X-BASS] TEST 5 TAPE TEST MODE

[ON/STAND-BY] [ ] + [X-BASS] TEST 6 ALL CLEAR(RESET)

[ON/STAND-BY] [TUNING/TIME UP ] + [X-BASS]

[ON/STAND-BY] TUNING/TIME DOWN ] + [X-BASS]

TEST 7 AUDIO TEST

TEST 8 PRODUCTION INITIALIZE FOR CHANGER

– 12 –

ADJUSTMENT

MECHANISM SECTION

• Driving Force Check

Torque Meter

Play: TW-2111 Tape 1: Over 80 g

• Torque Check

Torque Meter

Tape 1

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

Specified Value

Tape 2: Over 80 g

Specified Value

Tape 2

CD-DK2600V

• Tape Speed

Test Tape

Adjusting

Point

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

motor. terminal
(MM1) (Load

TAPE MECHANISM

Variable Resistor in motor

Specified

Value

Motor

Instrument

Connection

resistance:
6 ohms)

TUNER SECTION

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

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage Frequency Frequency

Display

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, SO301 Output: TP302
*2. Input: Antenna, SO301 Output: TP301

Setting/

Adjusting

Parts

Instrument

Connection

T351

CF351

IC303

AM IF

CF352

CF302

IC302

Figure 13-1

MAIN PWB

C393

TP301

T301

T302

L312

C375

IC301

CNP301

SO301

FM 75 ohms

GND

AM LOOP
ANTENNA

– 13 –

R357

TP302

T306

AM Band Coverage

T303

AM Tracking

Figure 13-2 ADJUSTMENT POINT

CD-DK2600V
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 14

EFBL)

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

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

* Focus gain adjustment
* Tracking gain adjustment

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=500mV

DC 10:1

T

CH2=200mV

DC 10:1

T

1

Stopped

FDO

State Code

CH3=1V

DC 10:1

1999/04/05 20:26:47

500ms/div

(500ms/div)

NORM:20kS/s

TE

3

EFBL

2

Smoothing : ON CH1 : 0.000V
BW : FULL

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

=Record Length=

Main : 100K
Zoom : 2k

Figure 14

CH2
v/DIV
200mV

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

– 14 –

CD-DK2600V

EXPLANATION OF DOLBY SURROUND PRO LOGIC AND EVALUATION METHOD

Outline

• Namely, two speakers are connected in parallel to one
amplifier.

• In the Pro Logic BYPASS mode the amplifier for C-ch
(center channel) and the amplifier for S-ch (surround channel)
are in MUTE state. The SP output is cut.

• State of element output and terminal output in specific mode

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

IC501 1 pin L-out Output enabled state Output enabled state Output enabled state

2 pin R-out Output enabled state Output enabled state Output enabled state
IC501 3pin C-out No output Output enabled state No output
IC501 9pin S-out No output Output enabled state Output enabled state
SP OUT L-ch Output enabled state Output enabled state Output enabled state
(SO901) R-ch Output enabled state Output enabled state Output enabled state
SP OUT C-ch No output in MUTE (Q501) state Output enabled state No output in MUTE (Q501) state
(SO901)
SP OUT S-ch No output in MUTE (Q502) state Output enabled state Output enabled state
(SO901)

Test tone output

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

↑ ↓

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

↑ ↓

S-ch ← R-ch

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

↑ ↓

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

In this case the following indication appears repeatedly.
→TEST → L-ch → R-ch

↑ ↓

← S-ch←

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

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

VIDEO Function mode

Output point Normal mode

SP out L-ch Almost no output (only omitting component)
(SO901) R-ch Almost no output (only omitting component)

(SO901) SP out C-ch
(SO901) SP out S-ch

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

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

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

Output point Phantom mode

SP out L-ch Input signal is output.
(SO901) R-ch Input signal is output.

(SO901) SP out C-ch SP cut, no output
(SO901) SP out S-ch

Almost no output (only omitting component)

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

VIDEO Function mode

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

Output point Normal mode

SP out L-ch
(SO901) R-ch

(SO901) SP out C-ch
(SO901) SP out S-ch Input signal is output.

Output point Phantom mode

SP out L-ch
(SO901) R-ch

(SO901) SP out C-ch SP cut, no output
(SO901) SP out S-ch Input signal is output.

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

Almost no output (only omitting component)

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

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

SP out, give the same phase input into L-ch/R-ch INPUT in
the Pro Logic Normal mode.
If one of channels receives input, C-ch does not output. Only
L-ch or R-ch outputs.

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

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

– 15 –

CD-DK2600V

NOTES ON SCHEMATIC DIAGRAM

• Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.

• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to
electrolytic capacitor, the expression “capacitance/withstand
voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type

• Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.

• The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas­sis with no signal given.

1. In the tuner section,

( ) indicates AM
< > indicates FM stereo

2. In the main section, a tape is being played back.

3. In the deck section, a tape is being played back.

( ) indicates the record state.

4. In the power section, a tape is being played back.

5. In the CD section, the CD is stopped.

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

REF. NO

SW1 OPEN/CLOSE ON—OFF
SW2 CLAMP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW701 CD ON—OFF
SW702 TAPE ON—OFF
SW703 TUNING DOWN ON—OFF
SW704 MEMORY/SET ON—OFF
SW705 REV ON—OFF
SW706 FF ON—OFF
SW707 PLAY ON—OFF
SW708 STOP ON—OFF
SW710 REC ON—OFF
SW711 TUNING UP ON—OFF
SW712 VIDEO ON—OFF
SW713 TUNING ON—OFF
SW714 DIMMER ON—OFF
SW715 X-BASS ON—OFF

DESCRIPTION

POSITION POSITION

REF. NO

SW716 EQUAL ON—OFF
SW717 NORMAL ON—OFF
SW718 PHANTOM ON—OFF
SW719 BY-PASS ON—OFF
SW720 ON/STAND-BY ON—OFF
SW721 CLOCK ON—OFF
SW722 TIMER ON—OFF
SW723 KARAOKE MODE ON—OFF
SW724 P.B.C ON—OFF
SW725 OSD ON—OFF
SW726 DIGEST ON—OFF
SW727 BOOKMARK ON—OFF
SW728 DISC 1 ON—OFF
SW729 DISC 2 ON—OFF
SW730 DISC 3 ON—OFF
SW731 DISC SKIP ON—OFF
SW732 OPEN/CLOSE ON—OFF

DESCRIPTION

FRONT

VIEW

BCE

KTD2026 Y

FRONT

VIEW

ECB

KTA1273 Y

FRONT

VIEW

E

C

B

(S)

(G)

(D)

(1)

(2)

(3)

2SC1845 F
KTA1266 GR

KTA1271 Y
KTA1274 Y

FRONT

VIEW

E

C

(S)

(G)

(D)

(1)

(2)

(3)

KRC102 M
KRC104 M
KRC107 M
KTC3199 GR

B

(3)

E

(1)

B

KRC102 S
KRC104 S
KTA1298 Y
KTA1504 GR
KTC3265 Y

KTC3194 Y
KTC3203 Y

Figure 16 TYPES OF TRANSISTOR AND LED

– 16 –

TOP

VIEW

(2)

C

4204SRT7
4204UGT7
4204UYT7

20

6
1

2127 3545

ICV3

VDD

DQ15

39

DQ12

36
34

DQ11

~~

~~

31

DQ8

A8

26

~

A4

22

A3

19

~

~

A0

16

RAS

14

DRAM

WE

13

SDM4260C

10

DQ7

~

DQ4

7

DQ3

5

~

~~

DQ0

2

MD8

73

~

~

MD11

70

MD12

68

~

MD15

65

MD0

62

~~

MD4

58

MD5

56

MPEG DECODER

~~~

MD7

54

MCAS

53

MWE

52

MRAS

49

MA0

48

~~

MA3

45

MA4

42

~

VOUT1

MA8

38

38

XV2

27MHz

13

X1

X2

ICV2

D61012GC

AUDO

AUBCK

35 32 33959798 99

1014

HD0

AULRCK

~

HD3

CDC2PO

CDLRCK

HD4

CDBCK

~~

257

HD7

92
84
83
76
75
63
51
44
36
25

VDD,CKSEL,HSELX,

HSELA,AVDD

23
17

~~

15

CDI

1

57

HD0

~

~

64

HD7

ICV1

MPEG CONTROLLER

IX0352AW

PWR_MPEG

15 44

XV1

4.19MHz

40

X2

SBUSY

CD-DK2600V

41

X1

50

~

45
42
33

25
17
16
14

9

~~

7

MBUSY

MCK

MDO

MDI

22201918

M3
T/T

UP/DOWN

MOTOR

SW3

M

DISC

NUMBER

SW2

CLAMP

SW1

OPEN/

CLOSE

MBUSY

SBUSY

GND

CLAMP SW

CD RES

CLK

DI
DO
CE

TO DISPLAY SECTION

DRF

WRQ

CDINT

+5V(+B3)

DGND

L-CH

AGND

(TO IC401)

TO MAIN SECTION

R-CH

JK501

VIDEO OUT

BI4

-

6

+

5
4
3
2
1

CNP12

12

11
10

9
8
7

6
5
4
3
2
1

CNP11

5
4
3
2
1

CNS4

CNPV3

6
5
4
3
2
1

CNP4

6
5
4
3
2
1

ICV4

VIDEO

NJM2267M

16

OPERATION AMP.

40
30

31
32

Q2

48
47
46
45

53
76
75

CONT2
CONT3
CONT4

RCHO

RFEV

RVSS
LVSS

SERVO/SIGNAL

LCHO

CONT7
CONT6

CECLDIDOINT

67

68

65 66

~

5735545556

IC2

LC78636E
CONTROL

70 71 72

69

WRQ

3359

CONT5

RES

SLD0

SPD0

ADAVDD

DEF

XOUT

52

XL1

16.9344MHz

242526

FD0

RFEV

XVDD
RVDD

LVDD

VDD

VVDD

51

23

HFL

TD0

TE
FE

XIN

19

16
15
14

7

3
50
49

44

36

18

5

73

VDD5V

QV2

+B3

+5V

+3.3V

QV3

35 29 22 21 14 8

39
38

42
41

25
17

2
1

IC3

M63001FP

FOCUS/TRACKING/

SPIN/SLED/LOADING

DRIVER

VCC4

VCC1

40

24 23 28

18

22

FE-

21
20

FE
TE-

19

TE

18

LA9235M

17

HFL

SERVO AMP.

30 23 11 9

Q1

CONSTANT

+3.3V

VOLTAGR

VCC2

+5V

LASER

DRIVER

IC1

VCC3

27
26
16

15

7
6
5
4

+3.3V

Q3

LDD

TIN2
TIN1

FIN2
FIN1

SW4

PICKUP IN

M

M

M1

SPINDLE

MOTOR

M2

SLED

MOTOR

TRACKING COIL

FOCUS COIL

8
7

PD

4
3
2
1

+5V

PICKUP UNIT

Figure 17 BLOCK DIAGRAM (1/3)

– 17 –

CD-DK2600V

D

P
A

SO301

FM ANTENNA

FM 75Ω

GND

AM LOOP
ANTENNA

JK1
MIC 1

JK 2
MIC 2

VRK 2
MIC 2
LEVEL

VRK 1
MIC 1
LEVEL

BF301

FM B.P.F.

AM ANT. AM OSC

CNP301

1

AM

2

TRACKING fL

TAPE MECHANISM Ass'y

TAPE 1

PB HEAD

TAPE 2

REC/PB HEAD

MM1

TAPE

MOTOR

SOLM1,SOLM2

SOLENOID

SWM2

T2 PLAY

SWM1

T1 PLAY

SWM4

R. PLAY

SWM3

F. PLAY

IC301

FM FRONT END

1 2 3 4 5 6 7 8 9

L312

T303 T306

AM BAND
COVERAGE fL

ICK1

M65856SP

MIC AMP.

LATCH

ROUT

LOUT

4

RIN

9

CLOCK

DATA

7

VCC

8

12
13

22

FROM CD SECTION
CNP11

REC

P.B

AC BIAS

MOTOR
DRIVER

Q706 +B4

Q704

+B4

Q705

IC701
54PIN

IC701
53PIN

IC701
56PIN

IC701
55PIN

L-CH

R-CH

L-CH

R-CH

M

ERASE
HEAD

MIC1 IN

MIC2 IN

FM OSCFM RF

+B9

40
35

36
31

LIN

32

41
42

23

VIDEO IN

SWITCHING

Q103~Q106

T301

QK1

L
R
L
R

JK201

+B5

1
2
3

CNS401

POP REDUCE

SWITCHING SWITCHING

Q107
Q108

BIAS
OCS

FM IF
T302

Q302

OSC BUFFER

+B5

FM +B

Q360

VOLTAGE

REGULATOR

QK2,3

IC201

+B5

BU4066BC

SWITCHING

1
3
8

10

14

PLAYBACK AND RECORD

/PLAYBACK AMP.

L(T1)

1

24

R(T1)

L(T2)

2

23

R(T2)

L NF

3
4

R NF

6

L REC

9

R REC

16
14

REF

12

Q109

Q128
L104

6125137

IC101

AN7345K

T1/T2

REC

NOR/
HIGH

15 19

Q111

SWITCHING

2
9
4

11

P.B.

H/N

T1/T2

7

Q403
Q404

13

4

21

7

18

8

17
10

Q110

FM IF

CF303

FM IF IN

4.5MHz

20

1

FM

+B5

PB

L
R

L R REC

L NF
R NF

ALC

+B9

AM IF

T351

1 2

AM MIX

LA1832S

FM/AM IF MPX.

24

23

AM OSC IN

AM OSC IN

X352

22

15

OSC

LC72131

PLL (TUNER)

Q121
Q122

MUTING

SWITCHING

Q124

CF352

IC303

21

AM RF IN

FM IN

AM IN

16

IC302

10

VIDEO

TAPE
TUNER

CD

+B9

FM+B

9

5

4

GND VCCAM IF

7 9

+B9

STEREO

CE

9

11

3

4

6

5

21

2417812

L

R

L

R

L

R

L

R

34
38

DOLBY PRO LOGIC

CLDICE

9

16

LC75341

10
15

AUDIO PROCESSOR

11
14
12
13

17

8

L

74

R

75

IC501

M62464AFP

DECORD

21 69 25

+B5

BAIS
Q126

8

17

FM DET

CF351

DODICL

VOLTAGE

REGURATER

17

+B9

23

IC401

2

1

24

Q127

MONO/ST

13

MO/ST

L

14

15

R

FM/AM

12

X351

456KHz

+B5

+B5

R

21

4

L

18

7

REC

Q501
Q502

9

3

T1/T2

BAIS

MECH

TA

Z

Figure 18 BLOCK DIAGRAM (2/3)

– 18 –

TAPE

MECHANISM

+B7

RESET

IC704

KIA7042P

+B7

1

RX701

3

2

+B7

KEY
SW701~SW713
SW714~SW727
SW728~SW733

50
51
53
54
55
56
46

40
39

36

34
33
32
31

FL701

DISPLAY

~~ ~

92 7938375554

IC601

4

IC602

8

IC603

KIA4558P

OPE AMP.

14 5333

6

100

~

IX0360AW

~

IC701

1 2 3

535247

VDD

SYSTEM MICROCOMPUTER

AVDD

27

~

30 25

–B1

+B4

27

~

78 85

80

SMUTE

XL701

4.1943MHz

CD-DK2600V

+B7

32

1624 2625

9

Q709

660

8

REQ

54 5556

VDD

LATCH
MIC IN

23

22 21

24

7

1

86

91

16
57

58

VDD

Q701
Q702
Q703
Q710
Q711
Q712

~

+B7

+B7

+B7

+B3

18

18

12

IC702

BU2092F

17

VOLUME

VR701

IC703

BU2092F

17

TO CD
SECTION

Q910

LED712~LED718

LED701~LED711

+B7

MEMORY
BACK UP

+B6

M901

M

FAN MOTOR

15

101112132154117181920

REC

501
502

T1/T2

ZD801

VROAD

+B8

(UNSW+5V)

IC902

L

1

STK40203

15

POWER AMP.

R

–B2

9

13

–B3(–15V)

(A+10V)

+B5

(CD+5V)

+B6

+B2

(SW+5V)

Q401
Q402

+B2

8

+B4(M+10V)

KIA7805P

AN78L05

IC804

10

4

KIA7810AP

IC802

IC801

Q503
Q504

L

IC901

1

STK40271

15

R

POWER AMP.

L
7

R

Q823

REGULATOR

REGULATOR

VOLTAGE

REGULATOR

–B1

9

D802

VOLTAGE

VOLTAGE

Q804

+B1

JK601
HEADPHONES

FRONT

L-OUT

7

R-OUT

10

4

13

8

D807
~D809
D818

+B3

D803
~D806

D801

F801

T5A L 250V

F802

T5A L 250V

F803

T4A L 250V

F804

T4A L 250V

F805

T2A L 250V

VF1

VF2

PT801

POWER

TRONSFORMER

230-240V

T.F

RL901

220V

127V

110V

RL902

SW801

VOLTAGE

SELECTOR

L-ch
R-ch

Center
Speaker

L-ch
R-ch

SO901
Speaker Terminal

AC POWER
SUPPLY CORD

Front
Speaker

Rear
Speaker

BAIS

Figure 19 BLOCK DIAGRAM (3/3)

– 19 –

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

CD-DK2600V

V

6

7

C

2

A

B

QV2

KTA1298 Y

RV1
10K

CV1

47/6.3

QV4

DV5

KTA1298 Y

KDS193

RV84

4.7K

+B

RV85

10K

+B

+B

+B

C

D

E

F

10

8

18

4
3

2
16
11

TO CD SECTION

12

P23 11-C, P23 11-D

14
13
15

1

2

3

4

5

TEST POINT

6

7

19
17

3.3V

MDI
MDO
MCLK

VPP
VDD
RESET
SO
SI
SCK
GND

RES

+5V
C2PO
LRCK
BCLK
DATAD
MBUSY
AV_GND
D_GND

SBUSY

RV2

+B

+B

+B

L64

0.82µH

+B

1K

+B

1K

RV15

DV4

KDS193

RV93 10K

RV94 10K

CV2

0.22

2

RV86

4.7K

QV3

KRC104 S

3

1

CV4

1K

RV11

16

15

17

MDI

18

MDO

19

MCK

20
21

MBUSY

22
23

VDD1

24

AVSS

25
26
27
28
29
30
31
32

34

33

47/6.3

12

14

13

11

CD-LD M-

CD-LD M+

MO_SPEED

PWR_MPEG

IX0352AW

MPEG CONTROLLER

AVREF

XT2

XT1ICX2

AVDD

RESET

37

36

35

38

1K

RV20

CV3
1/50

10

9

VSS0

VDD0

VOCAL CANCEL

ICV1

41

40

39

XV1

4.19MHz

CV5

8

X1

0.22

7

6

CD-SOL

K_C_DATA

VSS1

43

42

5

4 3 221

KEY CONT.

MPEG RESET

INT

SBUSY

45

44

RV22
1K

RV59 10K

K_C_CLK

K_C_STRB

1

HDAK

47

46

CV26

0.001

HD7
HD6
HD5
HD4
HD3
HD2
HD1
HD0

HWR
HRD
HCS

48

+B

+B

CV1

0.2

64
63
62
61
60
59
58
57

HA

56
55
54
53
52
51

RV37

50

1K

49

RV39 3.9K

RV38 3.9K

RV40 3.9K

RV41 3.9K

RV42 3.9K

RV43 3.9K

RV45 3.9K

RV44 3.9K

RV50 3.9K

RV49 3.9K

RV48 3.9K

RV47 3.9K

RV46 3.9K

XV2

27MHz

CV6

27P(C

XV2

CV

27P(

+B

CV9

0.22
C

47/

AUCLK

1

AUBCK

6

TO CD SECTION

AULRCK

7

AUDO

5

P23 11-C, P23 11-D, P23 11-F

AUEMP

9

G

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.

1

23456

Figure 20 SCHEMATIC DIAGRAM (1/15)

– 20 –

+B

XV2

27MHz

+B

+B

+B

27P(CH)

XV2

27P(CH)

CV9

0.22

CV11

0.22

CV6

CV7

CV10

47/6.3

NJM2267M

OPERATION AMP.

100

99

98

1

VDD
HD7

2

HD6

3

HD5

4

HD4

5

GND

6

HD3

7

HD2

8

HD1

9

HD0

10

GND

11

GND

12

X1

13

X2

14

VDD

15

CKSEL

16

VDD

17

GND

18

HCS

19
20

HRD
HWR

21

HA

22

HSELX

23

HSELA

24

VDD

25

27

28

26

CV8

4.7/50

+B

VIDEO SIGNAL

RV95

6.8K

ICV4

VIDEO

92

93

97

96

94

95

GND

CDBCK

CDLRCK

CDC2PO

CDEMPH

CDI

99

GND

100

MPEG DECODER

RESET

27

GND

26

AULRCK

AUBCK

AUCLK

HDAK

GND

INT

29

30

32

33

31

RV64

47

4
3

2

1

CV17 0.01
CV18 1000/6.3

CV15

4.7/25

0.1

CV13

CV14

89

88

91

90

VDD

CBP3

AGND

VOUT3

VOUT2

ICV2

D61012GC

AUDO

AUEMPH

VDD

GND

34

36

35

38

37

0.22

CV12

0.1

87

MA8

39

86

CBP2

MA7

40

RV61
100K

RV60

100

85

VOUT1

MA6

41

5
6

7

8

84

CBP1

MA5

CV16

42

CV39

1000/6.3

CV40
22/6.3

CV41

4.7/25

0.1

83

82

VDD

AVDD

MA4

GND

43

44

+B

CD VIDEO PWB-C(1/2)

RV62

150

RV63

150

RV96

33K

+B

0.22

CV19

76

80

81

77

78

79

VDD

75

GND

74

VCLK

HSYNC

NSYNC

CSYNC

MD8

73

MD9

72

MD10

71

MD11

70

GND

69

MD12

68

MD13

67

MD14

66

MD15

65

GND

64

CV21

VDD

63

0.22

MD0

62

MD1

61

MD2

60

MD3

59

MD4

58

GND

57

MD5

56

MD6

55

MD7

54

49

MCAS

53

50

MWE

52

VDD

51

MA0

MA1

48

47

CV20

50

49

0.22

VDD

76
77

MRAS

45

GND

MA3

46

GND
VCLK

MA2

+B

CV22

+B

+B

47/6.3

L63

0.82
CV23

47/6.3

1
2

CNPV3

CV24

0.22

FROM MAIN PWB

P27 10-H

CNSV3

VDD

1

DQ0

2

DQ1

3

DQ2

4

DQ3

5

VDD

6

DQ4

7

DQ5

8

DQ6

9

DQ7

10
11

ICV3

12

WE

13
14
15
16
17
18
19

20

CV25

0.22

RAS

A0
A1
A2

A3
VDD

SDM4260C

VSS
DQ15
DQ14
DQ13

DQ12

VSS
DQ11
DQ10

DQ9

DQ8

DRAM

LCAS

UCAS

OE

A8
A7
A6
A5
A4

VSS

CD-DK2600V

40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21

7

8 9 10 11 12

Figure 21 SCHEMATIC DIAGRAM (2/15)

– 21 –

CD-DK2600V

TDO

P

TDO

0

0
1

2

0

R35

K

C

8

0

S

A

CD VIDEO PWB-C(2/2)

CD SIGNAL

B

C

D

E

TR+
FO+

FO­TR-

ACTUATOR

F

PICKUP UNIT(306)

CD MOTOR PWB-D

M1

G

SPINDLE

MOTOR

M2

SLED

MOTOR

SW4

PICKUP IN

TR­TR+

FO+
FO­GND

M

M

Vcc

Vref

CNS1A

CNS1B

7

7

7

6

E

5

A

4

B

3

F

2

C

1

1

2
3
4
5
6

PD

7

VR

8

LD

6
5
4
3

2

1

1
2
3
4
5
6
7

CNS2B

6

5
4
3

2

1

1

2
3
4
5
6

7
88

CNS2A

7
6
5
4
3
2

1

1

2
3
4
5
6

7
8

CNP1

CNP2

R51 68K
R52 68K
R53 68K
R54 68K

TR–
TR+
FO+
FO–
GND

PD
VR
LD

TIN1
FIN1
FIN2
TIN2

R55

R56

68K

68K

C55

C54

0.01

47/10

C8

0.022
C7

10/16

C53

C51

47/6.3

C52

0.01

R47

R25
10K

3.3

0.001

Q3

KTA1504 GR

IC3

FOCUSE/TRACKING/

SPIN/SLED/LOADING

DRIVER

CNS3A

6

5
4
3

2

1

6
5
4
3
2
1

CNP3

SP–
SP+
SL+
SL–
PUIN
GND(D)

CNP3A

+

-

+

-

CNS3B

6

6

5

5

4

4

3

3

2

2

1

1

R50

47

FIN1

FIN2

TIN1

TIN2
C6
100/10

REF1
VREF

LDD

GND

LDON

AGON

EFBL

TEST0

NC

TES1

R48

6.8K

C50

100/6.3

+B

LA9235M

SERVO AMP.

1

REF

2

REF

3

REF

4

REF

5

REF

6
7

APC

8
9

10

ODRV

11

AGCON

12
13

LPF

14
15

TDO
FDO

C46

0.022

+B

STANDBY

+B

C49

100/6.3

REF

SLDO
VCC1

MUTE

REF

FO+
FO–
TR+

TR–

GND

SL–
SL+

Vref

IC1

TO
FD
FO

NC

ODRV

REF

1
2
3
4
5
6
7
8
9

10
11
12
13
14
15
16
17
18
19

20
21

REF

AGCON

PH

DH

PH/BH

REF
REF

REF
REF
REF

LPF
LPF

ODRV

REF

13

–

+

–

+

–

+

–

+

VCC

30

RFSW

R42

29

NC

120K

RF–

28

RF

27

NC

26

PH

25

BH

24

23

RFEV

22

FE–

21

FE

R3

20

47K

TE–

19

R4

TE

18

10K

HFL

17

NC

16

TEST

4

–

+

–

+

IC3

M63001FP

–

+

(CH)

39K

C13

0.01
C14

0.33

47/6.3

C18

3P

R5

C11

C12

0.022

+

–

–

+

–

+

8

C23

R1

0.047

68

C17

C82

0.022

SPDO

C25

0.022

R10
27K

R8

330

C42
68P

(CH)

+B

C47

100/6.3

+B

C41

100/6.3

1

R37

1.5K

+B

R79

1.5M

R15
10K

C26

0.047

C22

C24

2.2/5

100P

47/1

R8
1M

C2

C2

0.1
R1

12

EFBL

5

R7

6.8K

C20

R6

0.1

27K

0.0047

LD_M+

42

LD_M–

+

–

41

VCC4

40

+

–

LOADING M+

39

LOADING M–

38

NC

37

NC

36
35
34
33

GND

32
31
30
29

VCC3

28

SP–

27

SP+

26

SPO

–

25

+

VCC2(SPN)

–

24

+

23

–

+

22

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.

1

23456

Figure 22 SCHEMATIC DIAGRAM (3/15)

– 22 –

0

022

0

K

330

C42

68P

(CH)

2

M+
M–

C47

0/6.3

B

.

R8

8

0.047

1.5M

0.047

C41

100/6.3

1

R37

1.5K

+B

SERVO/SIGNAL

CONTROL

7

C23

R12
680

PD01

R13

R79

680

PD02

C24

2.2/50

VVSS

C81

C21

0.022

0.1
R11

PCKIST

C22

100P

12K

VVDD

R80
1M

R14

HFL

1.2K

C27

0.1

PH(RFENV)

C28

47/10

R44

EFBL

SLCIST
SLCO

EFMIN

JITTV
JITTC

VREF

ADAVDD

C29

0.022

ADAVSS

PHREF
BHREF

TBLO

1K

TDO

FDO

R35

1K

FDO

TDO

R15
10K

C26

FR

NC
BH

FE

TE

NC
NC

2

6

IC2

1

2
3

4
5

6
7
8
9

10
11
12
13
14
15
16

17

18

19
20
21
22
23
24

+B

PLL
VCEC

SLICE

LEVEL

CONTROL

R38
270

R21
470

D21

KDS193

EFMO

JITER

DEFECT

CONTROL

SW

+

–

S/H

25

SPDO

SLDO

NC

80

A/D

D/A

26

SLDO

R39

FG(D_Vref)

470

Q2

KRC102 S

R94

DISC_NO

10K

R95
10K

1K

R68

CONT7

V/vP

FSEQ

DEFECT

NC

NCNC

76

77

78

79

GENERAL

FRAME SYNC

DEFECT,PROTECT

EFM DECODE

CLV

CONTROL

SW

SERVO

PROCESSEROR

AUTO

ADJUST

GENERAL

CONT2

CONT1

LASER

NC

27 2829

30

R40 1.2K

R22
470

D22

KDS193

2

3

1

C71 100P
C72 0.01 R72 1K
C73 100P
C74 100P R74 1K

O/C

C75 100P
C76 100P
C77 100P
C78 100P

R67

1K

C80

0.1

RES

VSS

VDD5V

74

LC78636E

ERROR

CORRECT

CONT5

CONT4

32

33

34

NC

C2F

PCK

1K

R1

R17 1K

R46 1K

R16
10K

DEF

71

72

73

IC2

INTERPOLATION

AUDIO

OUT

FSX

35

36

37

VDD

DOUT

C31

100/6.3

DO

WRQ

70

68

69

COMMAND

INTERFACE

SUBCODE

DECODE

OUT

SERIAL

AUDIO IN

EXTERNAL

MUTE

DEEMPHASIS

ATTENUATION

FILTER

DIGITAL

1BIT

DAC

EFLG

38

39

40

C30

0.022

DI

67

CRC

TEST

9

CONT6

75

CONT3

31

R45 1.2K

3

R71 1K

R73 1K

R75 1K
R76 1K
R77 1K
R78 1K

CE

CL

65

66

64
63
62

61
60
59
58
57
56
55
54
53
52

51

CLOCK

50

GENERATOR

49
48
47
46

LPF

45
44
43
42
41

0.82µH

+B+B

L62

2.2µH

SBCK
PW

SBSY

SFSY
16M

DATA

DATACK

LRSY
ASDFIN
ASDACK
ASLRCK
XVSS

XOUT

XIN
XVDD
RVDD
RCHO
RVSS
LVSS
LCHO
LVDD

MUTER

NC

MUTEL

NC

EMPH

R96

L61

DRF
RES
WRQ
INT

DI
CL
CE

12

1K

C39

Q4

KTA11504 GR

C45

100/6.3

11

R89 1K
R90 1K
R91 1K

XL1

16.9344MHz

R20

220

0.022

0.0015

R82

2.2K

C38

10/16

R81

2.2K

10/16

0.0015

47

330/6.3

R19

KTC3265 Y

ZD61

DZ02W3.9

C44

0.022

R85 100
R86 1K
R92 1K
R93 1K

C34
C40

C43

C56

Q1

C64

10K

R84
R83

10K

47/6.3

DO

+B

220

R58

GND(D)

+B

10

+B

C83

0.022

R97

3.9K

O/C

DISC_NO

M+
M–

CNP4

AUCLK
DATAD

BCLK
LRCK

AUDO

AUBCK

AULRCK

+5V

+B

INT
WRQ
DRF
CE
DO
DI
CL
RES

MBUSY
SBUSY

C2PO

1
2
3
4
5
6

R-CH
AGND
L-CH
DGND
+5V

AUEMP

3.3V
AV_GND

D_GND

MDO

MDI

RES

1

4

6

CNS4

1
2

3
4

SECTION

5

P20 1-F,

6

P20 1-C

7
8

CNP11

1
2
3
4
5

9
10
11

12

SECTION

13

P20 1-F,

14

1
2
3
4
5
6

BI4

15

1
2
3
4
5
6
7
8
9

10
11
12

16
17
18
19

P20 1-C

CDINT
WRQ
DRF
CE
DO
DI
CLK
CD RES
CLAMP SW
GND
SBUSY
MBUSY

CNP12

MPEG
SECTION
P20 1-C,

P20 1-F

+

M

–

2
3

5

MCLK

CD LOADING
MOTOR PWB-F

CD-DK2600V

TO

MPEG

P26 5-H

CNS401

FROM MAIN PWB

TO

MPEG

P 31 9-A

CNS701

FROM

DISPLAY PWB

TO

SW1

OPEN/CLOSE

SW2

CLAMP

SW3

DISC NUMBER

M3
T/T

UP/DOWN

LOADING

• The numbers 1 to 13 are waveform numbers shown in page 45.

7

8 9 10 11 12

Figure 23 SCHEMATIC DIAGRAM (4/15)

– 23 –