Sharp CDBK-1800-V Service manual

CD-BK1600V/1800V/190V

SERVICE MANUAL

No. S5041CDBK1600

VIDEO CD MINI SYSTEM

Illustration: CD-BK1600V

Illustration: CD-BK1800V

MODEL

CD-BK1600V Video CD Mini System consisting of CD-BK1600V (main unit) and CP-BK1600 (speaker system).

MODEL

CD-BK1800V Video CD Mini System consisting of CD-BK1800V (main unit), CP-BK1800 (front speakers) and GBOXS0041AWM1 (surround speakers).

MODEL

CD-BK190V Video CD Mini System consisting of CD-BK190V (main unit), CP-BK190 (front speakers) and GBOXS0041AWM1 (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.

CD-BK1600V

CD-BK1800V

CD-BK190V

NTSC/PAL

Illustration: CD-BK190V

CONTENTS

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

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

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

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

OPERATION MANUAL ...................................................................................................................................................... 6

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

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

ADJUSTMENT ................................................................................................................................................................. 12

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 15

BLOCK DIAGRAM ........................................................................................................................................................... 16

SCHEMATIC DIAGRAM ...................................................................................................................................................20

WIRING SIDE OF P.W.BOARD........................................................................................................................................31

VOLTAGE ........................................................................................................................................................................ 39

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

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

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

FL DISPLAY......................................................................................................................................................................56

REPLACEMENT PARTS LIST/EXPLODED VIEW

Page

SHARP CORPORATION

– 1 –

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

CD-BK1600V/1800V/190V

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 Requirements. 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.

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

The voltage selector is located on the rear panel of the unit. If adjustment is necessary, use a screwdriver in order to turn the selector in either direction until the correct voltage figure is displayed in the window.

QACCB0012AW00

QACCE0007AW00

QACCJ0006AW00

Figure 2 AC POWER SUPPLY CORD AND PLUG ADAPTOR

QACCA0004AW00

QPLGA0003AWZZ QPLGA0004AWZZ

– 2 –

CD-BK1600V/1800V/190V

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

SPECIFICATIONS

CD-BK1600V/1800V/190V

General

Power source:

Power consumption:

Dimensions:

Weight:

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

100 W

Width; 270 mm (10-5/8") Height; 330 mm (13") Depth; 355 mm (14")

6.8 kg (14.9 lbs.)

Amplifier section

Output power:

Input terminals:

Output terminals:

MPO; 160 W (80 W + 80 W) (10 % T.H.D.)

RMS; 100 W (50 W + 50 W) (10 % T.H.D.)

RMS; 74 W (37 W + 37 W) (0.9 % T.H.D.)

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

Microphone 1/2; 1 mV/600 ohms Front speakers; 6 ohms (BK1600V) Front speakers; 8 ohms

Surround speakers; 16 ohms

Headphones; 16-50 ohms (recommended; 32 ohms)

Video out; 1 Vp-p (75 ohms)

Compact disc player section

Type:

Signal readout:

D/A converter: Frequency re-

sponse: 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

(BK1800V/190V)

(BK1800V/190V Only )

CP-BK1600V

Type:

Maximum input power:

Rated input power: Impedance: Dimensions:

Weight:

CP-BK1800V

Type:

Maximum input power:

Rated input power: Impedance: Dimensions:

Weight:

CP-BK190V

Type:

Maximum input power:

Rated input power: Impedance: Dimensions:

Weight:

GBOXS0041AWM1

Type: Maximum input

power: Rated input power: Impedance: Dimensions:

Weight:

3-way [10 cm (4") woofer 2 and 5 cm (2") tweeter]

100 W

50 W 6 ohms Width; 231.5 mm (9-1/8")

Height; 330 mm (13") Depth; 210 mm (8-1/4")

3.1 kg (6.8 lbs.)/each

3-way [10 cm (4") woofer 2 and 5 cm (2") t weeter]

80 W

40 W 8 ohms Width; 220 mm (8-11/16")

Height; 330 mm (13") Depth; 227 mm (8-15/16")

3.0 kg (6.6 lbs.)/each

3-way [10 cm (4") woofer 2 and 5 cm (2") t weeter]

80 W

40 W 8 ohms Width; 231.5 mm (9-1/8")

Height; 330 mm (13") Depth; 210 mm (8-1/4")

3.1 kg (6.8 lbs.)/each

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

15 W 16 ohms Widt h; 170 mm (6-3/4")

Height; 170 mm (6-3/4") Depth; 88 m m (3-1/2")

0.5 kg (1.0 lbs.)/each

Cassette deck section

Frequency response:

Signal/noise ratio:

Wow and flutter:

50 - 14,000 Hz (Normal tape)

55 dB (TAPE 1, playback) 50 dB

0.3 % (WRMS)

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

(TAPE 2, recording/playback)

– 3 –

CD-BK1600V/1800V/190V

Front panel

NAMES OF PARTS

3

2

1

45

7 8

9

10 11

12

18

17

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.Timer Set Indicator

8.On/Stand-by Button

9.Clock Button

10.Timer/Sleep Button

11.Function Selector Buttons

12.Headphone Socket

13.Dimmer Button

14.Volume Up/Down Buttons

15.Extra Bass/Demo Mode Button

16.Equalizer Mode Selector Button

17.Tuning and Time Up/Down Buttons

18.Memory/Set Button

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

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

21.(TAPE 2) Record Pause Button

22.(VCD/CD) Disc Skip Button

23.(VCD/CD) Open/Close Button

19

20 21

6

22

23

13 14

15 16

24

25 27

26

28

30

24.(TAPE 2) Reverse Play Button

25.(VCD) Stop/Return Button (CD/TAPE) Stop Button

26.(TAPE 2) Reverse Mode Button

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

28.Microphone Sockets

29.Microphone Level Controls

30.(TAPE 1) Cassette Compartment

31.(TAPE 2) Cassette Compartment

29

31

Display

1

23

45

67

68910116

1.FM Stereo Mode Indicator

2.Extra Bass Indicator

3.FM Stereo Indicator

4.Karaoke Mode Indicator

5.(VCD/CD) Repeat Indicator

6.Spectrum Analyzer/Volume Level Indicator

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

8.(VCD/CD) Pause Indicator

12

15

9.(VCD/CD) Play Indicator

10.(TAPE 2) Reverse Mode Indicator

11.(TAPE 2) Reverse Play Indicator

12.(TAPE 2) Record Indicator

13.(VCD/CD) Disc Number Indicators

14.Timer Play Indicator

15.Sleep Indicator

16.Timer Record Indicator

17.(VCD/CD/TUNER) Memory Indicator

– 4 –

16 17

13

14

Rear panel

3 4

5 6

7

1

8

9

2

1.AC Voltage Selector

2.AC P ower Input Socket

3.FM 75 Ohms Aerial Terminal

4.FM Aerial Earth Terminal

5.AM Loop Aerial Terminal

6.Span Selector Switch

7.Video Output Socket

8.Video/Auxiliary (Audio Signal) Input Sockets

9.Front Speaker Terminals

10.Surround Speaker Terminals (CD-BK1800V/BK190V Only)

10

CD-BK1600V/1800V/190V

CP-BK1600/BK190

1

2

1.Tweeter

2.Bass Reflex Duct

3.Woofer

4.Speaker Wire

CP-BK1800

1

3

2

3

1

2

4

1.Tweeter

4

2.Bass Reflex Duct

3.Woofer

4.Speaker Wire

GBOXS0041AWM1

1.Full-Range Speaker

2.Speaker Wire

1 2

– 5 –

CD-BK1600V/1800V/190V

Remote control

1

2 3

4

5

6 7

10

11

12

14 15 16

17 18

19

13

8

9

20 21

22 23

24 25

26 27

1.Remote Control Transmitter LED

2.Echo Level Up/Down Buttons

3.Karaoke Mode Button

4.Vocal Replacer Button

5.(VCD) VCD Auto/On Button

6.(VCD) Playback Control Auto/Off Button

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

8.On/Stand-by Button

9.(VCD) Direct Search Button

10.(VCD) Digest/Time Search Button

11.(VCD/CD) Clear Button

12.(VCD/CD) Memory Button

13.(VCD/CD) Disc Skip Button

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

15.(VCD) Bookmark Button

16.(TAPE 2) Reverse Play Button

17.(VCD) PAL/NTSC Select Button

18.(TAPE 2) Record Pause Button

19.Function Selector Buttons

20.(VCD/CD) Random Button

21.(VCD/CD) Pause Button

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

23.(VCD) Play/Repeat/Select/Resume Button (CD) Play/Repeat Button (TAPE 1) Play Button (TAPE 2) Forward Play Button

24.(VCD) Stop/Return Button (CD/TAPE) Stop Button

25.Extra Bass Button

26.Equalizer Mode Selector Button

27.Volume Up/Down Buttons

OPERATION MANUAL

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

15

Notes concerning use:

Replace the batteries if the operating distance is reduced or if the operation becomes erratic. Periodically clean the transmitter LED on the remote control and the sensor on the main unit with a soft cloth. Exposing the sensor on the main unit to strong light may interfere with operation. Change the lighting or the direction of the unit. Keep the remote control away from moisture, excessive heat, shock, and vibrations.

15

RESETTING THE MICROCOMPUTER

Reset the microcomputer under the following conditions:

To erase all of the stored memory contents (clock and timer settings, and tuner and CD presets). If the display is not correct. If the operation is not correct.

1

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

2

Whilst 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.

2

1

Caution:

The operation explained above will erase all data stored in memory including clock and timer settings, and tuner and CD presets.

– 6 –

CD-BK1600V/1800V/190V

(Continued)

Connecting the AC power lead

Check the setting of the AC voltage selector located on the

rear panel before plugging the unit into an A C 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.2Set 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).

3

Whilst 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

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.

3

Within 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 adv ance con-

tinuously.

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

– 7 –

(E1)x2 ø3x12mm

(C3)x1

(C1)x1 ø3x10mm

(D1)x6 ø3x10mm

CD Player Unit

CD Tray Cover

Rear Panel

Pull

(C3) x1

(C4)x3

(C2) x3

1

2

Main PWB

Video CD PWB

Disc Tray

CD-BK1600V/1800V/190V

DISASSEMBLY

Caution on Disassembly

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

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

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

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

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

CD-BK1600V/1800V/190V

STEP REMOVAL

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

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

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

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

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

4 Rear Panel 1. Screw ..................... (D1) x6 8-2

5 Main PWB 1. Screw ..................... (E1) x4 8-2,9-2

2. Socket .................... (E2) x5 9-2

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

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

5. Flat Wire................. (E5) x1

6 Socket PWB 1. Screw ..................... (F1) x1 9-2

7 Kraoke PWB 1. Screw ..................... (G1) x2 9-3

8 Front Panel 1. Screw ..................... (H1) x2 9-2

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

10 Tape Mechanism 1. Open the cassette holder. 9-4

10

Headphones PWB

11 Turntable 1. Hook....................... (M1) x2 9-4

12 Disc Tray 1.

13 Video CD PWB 1. Hook ....................... (P1) x3 10-1

14 CD Mechanism 1. Hook ....................... (Q1) x2 10-2

(Note 2) 2. Socket .................... (P2) x4

2. Socket .................... (F2) x1

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

2. Screw...................... (K1) x6

1. Screw ..................... (L1) x1 9-4

2. Cover ..................... (M2) x1

2.

3.

2. Hook....................... (Q2) x3

Note 1:

How to open the changer manually. (Fig. 8-3)

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 CD slide holder.

PROCEDURE

open the disc tray, take out the CD cover, and close. (Note 1)

(J1) x15

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 holder backward to engage the claw with the groove and remove it in the direction

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

(N1) x6

FIGURE

9-4

8-3

9-1

9-6

(Fig. 9-1)

CD-BK1600V/1800V/190V

Front Panel

Top Cabinet

(A1)x2 ø3x12mm

Side Panel (Left)

(B1)x2 ø3x10mm

Side Panel (Right)

(B1)x2 ø3x10mm

(B1)x4 ø3x12mm

(A1)x2 ø3x12mm

Rear Panel

Figure 8-1

Figure 8-2

Lock Lever

Figure 8-3

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 remove 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.

– 8 –

Figure 9-1

(J1)x15 ø3x10mm

(J2)x1

(K1)x6 ø3x10mm

(L1)x1 ø3x10mm

Display PWB

Open

Cassette Holder(Lift/Right)

Tape Mechanism

Front Panel

Headphones PWB

1

2

(N1) x3

Disc Tray

CD Player Unit

CD-BK1600V/1800V/190V

Clamp Lever

Cam Gear Rib

Figure 9-4

Record/ Playback PWB

(E2)x1

Socket PWB

(F1)x1 ø3x10mm

(E2)x1

Tape Mechanism

(E3)x1

(E4)x1

(E2)x1

(E2)x2

(F2)x1

Figure 9-2

(E1)x2 ø3x10mm

(H1)x2 ø3x10mm

Display PWB

Front Panel

Headphones PWB

(E5)x1

Main PWB

(M2) x1

Turntable

Disc Tray

(M1) x2

CD Player Unit

Figure 9-5

(G1)x2 ø3x10mm

Karaoke PWB

Tape Mechanism

Figure 9-3

Figure 9-6

– 9 –

CD-BK1600V/1800V/190V

(P2)x2

Video CD

Disc Tray

PWB

(P1)x3

(P2)x2

Figure 10-1

CP-BK1600/BK190

STEP

REMOVAL PROCEDURE FIGURE

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

Sub Woofer 2. Screw ..................... (A2) x8 10-4

2 Tweeter 1. Screw ..................... (B1) x2 10-4

CD

(Q2) x3

Mechanism

(Q1) x1

Disc Tray

Figure 10-2

CP-BK1800

STEP

REMOVAL PROCEDURE FIGURE

1 Woofer/ 1. Front Panel ............ (A1) x1 10-5

Sub Woofer 2. Screw ..................... (A2) x8 10-6

2 Tweeter 1. Screw ..................... (B1) x2 10-6

Driver should be pried away from Speaker Box.

Screwdriver

(A2)x4 ø4x12mm

Woofer

Speaker Box

Figure 10-3

(A1) x1

Speaker Box

Driver should be pried away from Speaker Box.

Screwriver

(A2)x4 ø4x12mm

(A1)x1

Speaker Box

Figure 10-5

Speaker Box

Woofer

Sub Woofer

(B1)x2 ø3x10mm

Figure 10-4

Tweeter

– 10 –

Sub Woofer

(B1)x2 ø3x10mm

Tweeter

Figure 10-6

REMOVING AND REINSTALLING THE MAIN PARTS

TAPE 2

TAPE 1 Main Belt (E1)x1

TAPE 2 Main Belt (D1)x1

TAPE 1 Main Belt (D1)x1

FF/REW Belt (D2)x1

FF/REW

Belt

(E2)x1

Motor

Main Belt (E1)x1

TAPE MECHANISM SECTION

Perform steps 1, 2, 3, 4, 5, 7, 8 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. Carefully remove the record/playback head and erase head screws (A1) x 2 pcs.

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

1. Carefully remove the playback head screws (B1) x 2 pcs.

Erase Head

CD-BK1600V/1800V/190V

TAPE 2

Record/Playback Head

(A1)x2 Ø2 x 6mm

Figure 11-1

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

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.

How to remove the belt (Tape 2) (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 1) (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)x1 Ø2x9mm

Pinch Roller (C1)x1

(B1)x1 Ø2x5mm

Figure 11-2

Pull

<B>

Figure 11-3

TAPE 1

Pull

Playback Head

<A>

Pinch Roller Pawl

(F1) x2

Ø2.6x5mm

Motor

Figure 11-4Figure 11-5

– 11 –

CD-BK1600V/1800V/190V CD MECHANISM SECTION

Perform steps 1, 2, 3, 11, 12, 13, 14 and 15 of the disassembly method to remove the CD mechanism.

How to remove the T/T Up/Down motor (See Fig. 12-1)

1. Bend the hooks (A1) x 5 pcs., to remove the T/T Up/Down motor.

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

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

1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2).

2. Remove the stop washer (B3) x 1 pc., to remove the gear (B4).

3. Remove the pickup.

Note

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

Disc Tray

(B1) x2 ø2.6 x6mm

T/T Up/Down Motor

(A1)x2

Figure 12-1

Stop Washer (B3) x1

(A1)x3

Pulley

Drive Belt (A2) x1

Motor

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

Pickup

Shaft (B2) x1

Gear

CD Mechanism

(B4) x1

Figure 12-2

• Tape Speed

Test Tape

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

Adjusting

Point

motor. (Load

Specified

Value

Instrument

Connection

resistance: 6 ohms)

TAPE MECHANISM

– 12 –

Motor

Variable Resistor in motor

Figure 12-3

TUNER SECTION

fL: Low-range frequency fH: High-range 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 Output: TP302 *2. Input: Antenna Output: TP301

Setting/

Adjusting

Parts

FM TERMINAL

SO302

Instrument

Connection

CNP301

AM LOOP

ANTENNA

CD-BK1600V/1800V/190V

• FM RF

Signal generator: 400Hz, 22.5 kHz dev., FM modulated

Test Stage

Frequency

Display

Setting/

Adjusting

Point

FM Band — 87.50 MHz T301(fL): *1 Coverage 3.4 V ± 0.1V

FM RF 98.00 MHz 98.00 MHz L312 *2

(10-30 dB)

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

MAIN PWB

Instrument

Connection

TP301

R382

FM BAND COVERAGE fL

Figure 13-1 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.13-

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

T301

T351

AM IF

IC301

FM IF

T302

L312

FM RF

T303

AM BAND COVERAGE fL

TP302

AM TRACKING fL

T306

R357

1

CD ERROR CODE DESCRIPTION

Error State Code

0001 Cannot detect Pickup-in SW 0002 DSP access error

0101 Open/Close SW Low → High not functioning 0103 Open/Close SW High → Low not functioning

0201 Open/Close SW Low → High not functioning 0203 Open/Close SW High → Low not functioning

0302 Pickup-in SW is not detected 0306 During Disc 1 search, Open/Close SW or Clamp SW

0307 Clamp SW Low → High not functioning 0308 Clamp SW High → Low not functioning

[Servo System Error]

[Error during close operation]

[Error during open operation]

[Error during skip operation]

or Disc SW do not change to low.

T

1

3

Stopped

FDO

TE

CH1=500mV

DC 10:1

CH2=200mV

DC 10:1

CH3=1V

DC 10:1

1999/04/05 20:26:47

500ms/div

(500ms/div)

NORM:20kS/s

– 13 –

EFBL

2

Smoothing : ON CH1 : 0.000V BW : FULL

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

Figure 13-2

=Record Length=

Main : 100K Zoom : 2k

CH2 v/DIV 200mV

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

CD-BK1600V/1800V/190V

• TEST MODE

Setting of test mode Any one 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.

IL isn't done

<<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.

STOP

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

<<MEMORY>> key input.

Laser ON.

<<MEMORY>> key input.

Tracking OFF play at that specific point.

<<MEMORY>> key input.

Tracking ON play at that specific point.

<<STOP>> key input.

STOP

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

To cancel : Power OFF

– 14 –

NOTES ON SCHEMATIC DIAGRAM

(1) (2) (3)

(S) (G) (D)

E C B

FRONT

VIEW

KTA1266 GR KRC102 M KRC102 S KRC104 M KRC104 S KTA1271 Y KTA1274 Y

2SC1845 F KTA1273 Y KTC3203 Y KTC3199 GR KRC107 M KTC3194 Y

KTC2026

4204SRT7

BCE

FRONT

VIEW

FRONT VIEW

KDV147B SVC348S

KTA1298 Y KTA1504 GR KTC3265 Y

TOP

VIEW

3

2

1

• 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.

CD-BK1600V/1800V/190V

• 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 DESCRIPTION POSITION POSITION

SW1 OPEN/CLOSE ON—OFF SW2 CLAMP ON—OFF SW3 DISC NUMBER ON—OFF SW4 PICKUP IN ON—OFF SW401 SPAN SELECTOR SW601 ON/STAND BY ON—OFF SW602 CLOCK ON—OFF SW603 TIMER/SLEEP ON— OFF SW604 AUDIO KARAOKE ON—OFF SW605 PBC ON—OFF SW606 OSD/ON/OFF ON—OFF SW607 DIGEST ON—OFF SW608 BOOK MARK ON—OFF SW609 DISC SKIP ON—OFF SW610 OPEN/CLOSE ON—OFF SW611 DIMMER ON—OFF SW612 X-BASS/DEMO ON—OFF SW613 EQUALIZER ON—OFF

50/9—100/10

REF. NO DESCRIPTION

SW614 VOLUME UP ON—OFF SW615 VOLUME DOWN ON—OFF SW616 CD ON—OFF SW617 TAPE ON—OFF SW618 TUNING /TIME DOWN ON—OFF SW619 MEMORY/SET ON—OFF SW620 REWIND ON—OFF SW621 FAST FORWARD ON—OFF SW622 PLAY/REPEAT ON—OFF SW623 STOP ON—OFF SW624 REVERSE PLAY ON—OFF SW625 REC/PAUSE ON—OFF SW626 TUNING/TIME UP ON—OFF SW627 VIDEO/AUX ON—OFF SW628 TUNER (BAND) ON—OFF SW629 REVERSE MODE ON—OFF SW801 VOLTAGE SELECTOR 110—127—

220—

230-240

Figure 15 TYPES OF TRANSISTOR AND LED

– 15 –

CD-BK1600V/1800V/190V

20

6 1

2127 3545

VDD

DQ15 DQ12

DQ11

ICV3

DRAM

SDM4260C

39 36

34

~~

31

DQ8

A8

26

~

A4

22

A3

19

~

A0

16

RAS

14

WE

13 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

XV2

27MHz

1014

13

X1

X2

ICV2

D61012GC

AUDO

AUBCK

35 32 3395 9798 99

~

HD3

HD0

AULRCK

CDC2PO

~~

257

HD7

HD4

92 84 83 76 75 63 51 44 36 25

VDD,CKSEL,HSELX,

HSELA,AVDD

23 17

~~

15

CDLRCK

CDBCK

CDI

1

57

HD0

~

64

HD7

ICV1

MPEG CONTROLLER

IX0352AW

PWR_MPEG

15 44

XV1

4.19MHz

40

X2

SBUSY

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

JK671

VIDO 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 LCHO

CONT7 CONT6

SERVO/SIGNAL

CECLDIDOINT

67

68

65 66

~

5735545556

IC2

LC78641E

CONTROL

WRQ

70 71 72

69

3359

CONT5

RES

SLD0

SPD0

ADAVDD

DEF

XOUT

52

XL1

16.9344MHz

242526

FD0

RFEV

XVDD RVDD LVDD

VVDD

23

HFL

VDD

51

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 DRIVER

VCC4

VCC1

40

18

22

FE-

21

FE

20

TE-

19

TE

18

LA9235M

17

HFL

SERVO AMP.

30 23 11 9

Q1

CONSTANT

+3.3V

VOLTAGR

VCC2

24 23 28

+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

MOTOR

FOCUS COIL

M2

SLED

M1

SPINDLE

MOTOR

TRACKING COIL

8 7

PD

4 3 2 1

+5V

PICKUP UNIT

Figure 16 BLOCK DIAGRAM (1/4)

– 16 –

TO MAIN SECTION

(TO IC601)

CD-BK1600V/1800V/190V

OUT(L)

IN(L)

1 2 3 4 5 6 7 8 9 10 11

QK3

GND(A)

+10V(A)

QK2

OUT(R)

IN(R)

GND(D)

DATA

CLOCK

LATCH

MIC IN

CNSK1

BIK1

QK1

ICK1

MIC AMP.

M65856SP

42 41

DATA

40

CLDCK

LATCH

4

MIC1IN

VRK2

MIC2

VOLUME

35

36

LOUT

MICLOUT

MIC1VOLIN

7 8

ROUT

RIN

MIC2IN

9 12

31

32

LIN

MIC2OUT

MIC2VOLIN

13

VRK1 MIC1

VOLUME

23

22

VCC

GND

PINK1

CHASIS GND

JK2

MIC2

Figure 17 BLOCK DIAGRAM (2/4)

– 17 –

JK1

MIC1

CD-BK1600V/1800V/190V

FM ANTENNA

PB HEAD

TAPE 1

REC PB HEAD

TAPE 2

SO302

AM LOOP ANTENNA

L-CH

R-CH

L-CH R-CH

CNP302

1

2

FROM CD

SECTION

CNP11

REC

P.B.

AC BIAS

BF301

1

SWITCHING

Q104~

Q107

2

T303

CNS402

Q108 Q109

1 2 3 4 5

SWITCHING

IC301

TA7358AP

1

FM FRONT END

4

3

FM

L312

RF

AM

TRACKING

FROM KARAOKE

REDUCE

T306

SECTION

CNSK1

R

L

PLAYBACK AND RECORD/

PLAYBACK AMP.

L(T1)

1

R(T1)

24

L(T2)

2

R(T2)

23

L NF

3

R NF

22

POP

T1/T2

6

L REC

9

REC

R REC

16

REF

14

NOR/

12

15

SWITCHING

5

7

FM

AM BAND

COVERAGE

CNP403

1 2 3

IC101

AN7345K

Q103

P.B

OSC

T1/T2 HIGH

T301

H/N

19

8

Q302

6

9

13

21

20

18

17 10

4

5

7

8

FM +B

+B2

L R

L NF R NF

ALC

T302

+B2

PB

RECRL

1

FM OSC

VT

SWITCHING

Q360

CF303

20

4.5MHZ

1

OSC

PLL(TUNER)

FM

VIDEO/AUX

3

23

AM OSC IN

X352

IC302

LC72131

SO401

L

R

T351

21

AM MIX

IC303

LA1832S

FM IF DET./

FM MPX./AM IF

24

21

AM RF IN

22

15

16

FM/AM

7

AUX

TAPE

TUNER

CD

3

1

CF352

4

AM IF

7

STEREO

11

MO/ST

9

10

7

L

9

R

16

L

10

R

15

L

11

R

14

L

12

R

13

CF351

5

GND

FM/AM

CE

3

OUT

18

FM+B

DI

4

9

FM

DET

MPXIN

16

CL

5

VDD

1 7

8

VCO

FM/AM

DO

6

17

21

+B2

IC401

LC75341

18

17

23

3

8

R

AUDIO PROCESSOR

7

8

X351

13

MO/ST

12

MUTING

L R

Q110 Q111

14 15

+B2

DI

1

CE

2

CL

24

R

21

L

4

SYSTEM

MUTE

Q401 Q402

REC/PLAY

T1/T2

ERASE

HEAD

BIAS OSC

Q114

L104

Q101

SWITCHING

Q102

SWITCHING

Q112

BIAS

Q113

Figure 18 BLOCK DIAGRAM (3/4)

– 18 –

BAIS

CD-BK1600V/1800V/190V

Q401 Q402

+B2

SYSTEM

MUTE

SW401

SPAN SELECTOR

Q601-Q603

SP. DET.

Q901 Q902 Q903 Q904

1

STK402-040 POWER AMP.

15

+Vcc

+B1

21

4

3

60

58575655545352

63 78

VLOAD

79 80

85 90

92

93

~~~ ~

100

VDD

41

+B4

IC901

-Vcc

13

9

8

–B1

11

65

7

11

FL DISPLAY

12

FL701

~~

14

IX0331AW

SYSTEM

MICROCOMPUTER

RESET

~

11

10

7

Q609

R-OUT L-OUT

36

~

21

2015

+B4

5051

49484746 44434241

IC701

12139

XL701

4.1943MHz

F801

T4.0A L 250V

1516

+B4

45

VDD

~

17

RESET IC

3

KIA7042AP

POWER TRONSFORMER

393837

20

IC704

2

SYS. STOP

CEDICL

212322

PT801

AVDD

1

24

+B4

40

DO

LED722

39 38 37 36 35 34 33

~

31

Q604 Q608

+B4

RL951

MOTOR DRIVER

Q607

Q606

Q605

1

Q971

RX701

R. PLAY F. PLAY T2 PLAY T1 PLAY

SOLENOID

TAPE MOTOR

M

3

+B4

2

KEY

SW601-SW629

+B2

JK951

HEADPHONES

TO CD

SECTION

+B3

M

FAN MOTOR

SO902

SPEAKER

TERMINAL

BK1800V/190V

ONLY

FRONT SPEAKER

SURROND SPEAKER

REC/PLAY

T1/T2

BAIS

+B2

+B3

+B4

D801

KIA7810AP

A10V

+5V

KIA7805P VOLTAGE REGULATOR

UNSWITCH

5V

VOLTAGE REGULATOR

IC841

IC851

IC852

AN78L05 CONSTANT VOLTAGE REGULATOR

D802-D805

Figure 19 BLOCK DIAGRAM (4/4)

– 19 –

F802

T4.0A L 250V

F803

T2.0A L 250V

SW801

VOLTAGE SELECTOR

230-240V

110V 127V 220V

TF

SO801 AC INPUT SOCKET

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

CD-BK1600V/1800V/190V

C

4

9 2

C

2

V 7

V .

A

KTA1298 Y

RV1

B

C

D

E

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

VPP VDD RESET SO SI SCK GND

RES

+5V C2PO LRCK BCLK DATAD MBUSY AV_GND D_GND

MDI MDO MCLK

SBUSY

+B

10K

+B

L64

0.82µH

+B

QV2

RV2

RV15

1K

CV1

47/6.3

RV93 10K

RV94 10K

DV4

KDS193

CV2

0.22

2

RV86

4.7K

+B

QV3

KRC104 S

3

1

+B

CV4

1K

RV11

16

15

17

MDI

18

MDO

19

MCK

20 21

MBUSY

22 23

VDD1

24

AVSS

25 26

MPEG CONTROLLER

27 28 29 30 31 32

34

33

12

14

13

MO_SPEED

PWR_MPEG

AVREF

AVDD

RESET

37

36

35

47/6.3

10

11

CD-LD M-

CD-LD M+

ICV1

IX0352AW

XT2

XT1ICX2

39

38

1K

RV20

9

8

VSS0

VDD0

VOCAL CANCEL

41

40

XV1

4.19MHz

CV5

X1

0.22

7

42

5

6

CD-SOL

KEY CONT.

K_C_DATA

INT

VSS1

43

44

RV22 1K

+B

4 3 221

K_C_CLK

K_C_STRB

1

MPEG RESET

SBUSY

45

47

46

RV59 10K

HD7 HD6 HD5 HD4 HD3 HD2 HD1 HD0

HDAK

HWR

HRD HCS

48

QV4

DV5

KTA1298 Y

1SS133

RV84

4.7K

+B

RV85

10K

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

RV42 3.9K

RV43 3.9K

RV41 3.9K

RV47 3.9K

RV46 3.9K

RV45 3.9K

RV44 3.9K

RV50 3.9K

RV49 3.9K

RV48 3.9K

+B

XV2

27MHz

+B

C

0

C 2

XV2

+B

CV

0.2

F

TO CD SECTION

AUCLK

1

AUBCK

6

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 15.

1

23456

Figure 20 SCHEMATIC DIAGRAM (1/12)

– 20 –

CD-BK1600V/1800V/190V

RV50

3

9K

CD VIDEO PWB-B(1/2)

VIDEO SIGNAL

RV64

RV95

6.8K

91

92

93

VDD

GND

AGND

ICV2

D61012GC

AUEMPH

AULRCK

AUBCK

34

35

33

CV12

22

4

3 2

1

CV17 0.01

CV183 30/6.3

CV15

4.7/25

0.1

CV13

CV14

89

87

88

90

CBP2

CBP3

VOUT3

VOUT2

AUDO

MA8

VDD

GND

36

39

38

37

0.22

MA7

86

40

RV61

100K

RV60

100

85

CBP1

VOUT1

MA6

41

1000/6.3

5 6

CV40 22/6.3

7 8

CV16

83

84

AVDD

MA4

MA5

42

CV39

CV41

4.7/25

0.1

82

VDD

GND

43

44

+B

81

VDD

45

RV96

33K

80

HSYNC

76 77

MRAS

GND

MA3

46

79

NSYNC

CSYNC

GND VCLK

49 50

MA2

47

MA1

RV62

150

RV63

150

+B

CV21

0.22

CV20

0.22

CV22

+B

47/6.3

0.82

0.22

CV19

76

77

78

VDD

75

GND

74

VCLK

MD8

73

MD9

72

MD10

71

MD11

70

GND

69

MD12

68

MD13

67

MD14

66

MD15

65

GND

64

VDD

63

MD0

62

MD1

61

MD2

60

MD3

59

MD4

58

GND

57

MD5

56

MD6

55

MD7

54

MCAS

53

MWE

52

VDD

51

MA0

50

48

49

L63

CV23

47/6.3

1 2

CNPV3

CV24

0.22

FROM MAIN PWB

P27 10-B

CNS404

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

RAS

14 15

A0

16

A1

17

A2

18

A3

19

VDD

20

CV25

0.22

40

VSS

DQ15

39

DQ14

38

DQ13

37 36

DQ12

VSS

35

DQ11

34

33

DQ10

DQ9

32

DQ8

31 30

DRAM

LCAS

29

UCAS

28

SDM4260C

OE

27

A8

26

A7

25

A6

24

A5

23

A4

22

VSS

21

+B

ICV4

NJM2267M

VIDEO

OPERATION AMP.

+B

CV11

0.22 100

99

98

97

96

94

1

VDD HD7

2

HD6

3

HD5

4

HD4

5

GND

6

HD3

7

HD2

8

HD1

9

CV6

HD0

XV2

CV9

0.22

27P

CV7 27P

CV10

47/6.3

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

26

+B

XV2

27MHz

.

+B

95

CDBCK

CDLRCK

CDC2PO

CDEMPH

CDI

99

GND

100

MPEG DECODER

RESET

27

GND

26

AUCLK

HDAK

GND

INT

27

28

29

30

32

31

7

8 9 10 11 12

Figure 21 SCHEMATIC DIAGRAM (2/12)

– 21 –

CD-BK1600V/1800V/190V

TDO

P

TDO

0

2 0

R35

R 1

1

K

C

0

R

S

A

CD VIDEO PWB-B(2/2)

CD SIGNAL

B

C

D

E

TR+

FO+

FOTR-

ACTUATOR

PICKUP UNIT

F

CD MOTOR PWB-D

M1

SPINDLE

G

MOTOR

M2

SLED

MOTOR

SW4

PICKUP IN

TR+ FO+ FOGND

TR-

M

Vref

Vcc

PD VR LD

7 6

E

5

A

4

B

3

F

2

C

1

1 2 3 4 5 6 7 8

+

-

+

-

6 5 4 3

2

1

1 2 3 4 5 6 7

CNS2B

CNP3A

6 5 4 3 2

1

2 3 4 5 6

7 88

CNS2A

6 5 4 3 2 1

7 6 5 4 3 2

1

1 2 3 4 5 6 7 8

CNP1

TR– TR+ FO+ FO– GND

CNP2

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

PD VR LD

CNS3B

6

5

4

3

2

1

C53

0.001

KTA1504 GR

FOCUSE/TRACKING/

SPIN/SLED DRIVER

CNP3

CNS3A

SP–

6

SP+

5

SL+

4

SL–

3

PUIN

2

GND(D)

1

R56 68K

Q3

C51

47/6.3

C52

0.01

IC3

R47

3.3

C54

R55 68K

47/10

R25 10K

TIN1 FIN1 FIN2 TIN2

C8

0.1

C55

0.01

10/35

C7

CNS1A

CNS1B

7

R50

47

FIN1

FIN2

TIN1

TIN2 C6 100/6.3

REF1

VREF

LDD

GND

LDON

AGON

EFBL

TEST0

NC

TES1

6.8K

C50

100/6.3

+B

SERVO AMP.

1

REF

2

REF

3

REF

4

REF 5 6

7

APC 8

9

10

ODRV

11

AGCON

12 13 14 15

TDO FDO

C46

0.022

+B

R48

+B

IC1

LA9236M

REF

LPF

REF

TO

1

FD

2

FO

3

NC

FO+

4

FO–

5

TR+

6

TR–

7 8 9

10

GND

11 12 13 14

SL–

15

SL+

16

SLDO

17

VCC1

18

STANDBY

19

Vref

20

MUTE

21

C49

100/6.3

REF

ODRV

PH/BH

REF REF

ODRV

AGCON

PH

DH

REF

LPF

REF

LPF REF

+ +

30

RFSW

29

NC

28

REF

27 26 25 24

23 22 21 20 19 18 17 16

13

–

+

–

+

IC3

M63001FP

–

+

–

VCC

R42

120K

RF–

RF NC PH BH

RFEV FE– FE TE– TE HFL

NC TEST

4

47K

10K

8

C23

R1

0.047

68

C17

C82

0.022 (H,E)

SPDO

C25

0.022

R10 27K

R8

330

C42 68P

+B

C47

100/6.3

+B

R79

1.5M

0.047

C41

100/6.3

1

R15 10K

C26

C22

C24

2.2/5

100P

47/1

C21

0.1

R8 1M

C28

R1 12

EFBL

+

– +

–

+ +

R7

R6

+

6.8K 27K

– –

–

5

C20

0.1

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

C11

47/6.3

C12

0.022

C18

3P

R5

39K

C13

0.01 C14

0.33

R3

R4

+

–

+

–

+

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.

1

23456

Figure 22 SCHEMATIC DIAGRAM (3/12)

– 22 –