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CD-BK1600V/1800V/190V

SERVICE MANUAL
No. S5041CDBK1600

VIDEO CD MINI SYSTEM

MODEL
Illustration: CD-BK1600V

CD-BK1600V CD-BK1800V CD-BK190V

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
Illustration: CD-BK1800V

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.

NTSC/PAL

Illustration: CD-BK190V

CONTENTS
Page
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

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

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.

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 QACCA0004AW00

QACCE0007AW00

QPLGA0003AWZZ

QPLGA0004AWZZ

QACCJ0006AW00

Figure 2 AC POWER SUPPLY CORD AND PLUG ADAPTOR ­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 CP-BK1600V
Type: 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.) Weight: Maximum input power: Rated input power: Impedance: Dimensions: 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

General
Power source: Power consumption: Dimensions:

Weight:

Amplifier section
Output power: 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.) Input terminals: Video/Auxiliary (audio signal); 500 mV/47 kohms Microphone 1/2; 1 mV/600 ohms Output terminals: Front speakers; 6 ohms (BK1600V) Front speakers; 8 ohms (BK1800V/190V) Surround speakers; 16 ohms (BK1800V/190V Only ) Headphones; 16-50 ohms (recommended; 32 ohms) Video out; 1 Vp-p (75 ohms) Weight:

CP-BK1800V
Type: Maximum input power: Rated input power: Impedance: Dimensions: 3-way [10 c m (4") woofer 5 cm (2") t weeter] 80 W 40 W 8 ohms Widt h; 220 mm (8-11/16" ) Height; 330 mm (13") Depth; 227 mm (8-15/16") 3.0 kg (6.6 lbs .)/each 2 and

CP-BK190V
Type: Maximum input power: Rated input power: Impedance: Dimensions: 3-way [10 c m (4") woofer 5 cm (2") t weeter] 80 W 40 W 8 ohms Widt h; 231 .5 mm (9-1/8") Height; 330 mm (13") Depth; 210 mm (8-1/4") 3.1 kg (6.8 lbs .)/each 2 and

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

Weight:

GBOXS0041AWM1
90 dB (1 kHz) Type: Maximum input power: Rated input power: Impedance: Dimensions: FM; 88 - 108 MHz AM; 531 - 1,602 kHz Weight: 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 mm (3-1/2") 0.5 kg (1.0 lbs .)/each

Video CD section
Video output format: PAL/PAL 60/NTSC

Tuner section
Frequency range:

Cassette deck section
Frequency response: Signal/noise ratio: 50 - 14,000 Hz (Normal tape) 55 dB (TAPE 1, playback) 50 dB (TAPE 2, recording/playback) 0.3 % (WRMS)

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

Wow and flutter:

­3­

CD-BK1600V/1800V/190V

NAMES OF PARTS
CD-BK1600V/1800V/190V

Front panel

1 7 8 9 10 11 12

2 3

4

5

6 24 25 26 27 13 14 15 16 28 29

17 18 19

20 21 22 23

30

31

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

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

Display

1

2

3

4

5 6

7

12

13 14
15 16 17

6

8

9

10

11

6

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

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

CD-BK1600V/1800V/190V
Rear panel

1 2

3 4 5 6 7 8 9 10

1. AC Voltage Selector 2. AC Power 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)

CP-BK1600/BK190

CP-BK1800

1 3 2

1 2

1 3 2

1 2

4 4
1. Tweeter 2. Bass Reflex Duct 3. Woofer 4. Speaker Wire 1. Tweeter 2. Bass Reflex Duct 3. Woofer 4. Speaker Wire

GBOXS0041AWM1
1. Full-Range Speaker 2. Speaker Wire

1 2

­5­

CD-BK1600V/1800V/190V
CD-BK1600V/1800V/190V

Remote control

1 2 3 4 5 6 7 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 9 8

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
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.

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

1 2

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

15

15

2 1

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.

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

­6­

(Continued)
In this example, the clock is set for the 24-hour (0:00) system. Press the MEMORY/SET button. (Main unit operation)

SETTING THE CLOCK

Connecting the AC power lead

AM/FM interval (span)

5

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

6
ON/ STAND-BY CLOCK MEMORY/SET

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

The International Telecommunication Union (ITU) has established that member countries should maintain either a 10 kHz or a 9 kHz interval between broadcasting frequencies 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.

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".

TUNING/ TIME ( )

7

Press the MEMORY/SET button.

1

1 2
Press the CLOCK button.

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

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".

­7­

3

Within 5 seconds, press the MEMORY/SET button.

2

9 4
"0:00" "AM 0:00" "AM 12:00" or ) button to select the Press the TUNING/TIME ( time display mode. The 24-hour display will appear. (0:00 23:59) The 12-hour display will appear. (AM 0:00 - PM 11:59) The 12-hour display will appear. (AM 12:00 - PM 11:59) Note that this can only be set when the unit is first installed or it has been reset.

To change the tuning zone:

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.

1

To an AC socket

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

Notes: Plug the AC power lead into an AC socket, after any connections. Unplug the AC power lead from the AC socket if the unit will not be in use for a prolonged period of time.

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.

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.

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

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

0:00

AM 0:00

AM 12:00

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 MICROCOMPUTER". 2 Perform steps 1 - 9 above.

CD-BK1600V/1800V/190V

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 1 2 3 REMOVAL Top Cabinet Side Panel (Left/right) CD Player Unit/ CD Tray Cover PROCEDURE 1. Screw ..................... (A1) x4 1. Screw ..................... (B1) x8 1. Turn on the power supply, 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 1. Screw ..................... (D1) x6 1. Screw ..................... 2. Socket .................... 3. Flat Cable ............... 4. Lug Wire ................. 5. Flat Wire ................. FIGURE 8-1 8-1 8-2
Video CD PWB (C4)x3 CD Tray Cover Disc Tray 1 (C2) x3
(B1)x4 ø3x12mm Rear Panel (B1)x2 ø3x10mm

CD-BK1600V/1800V/190V
Front Panel (A1)x2 ø3x12mm Top Cabinet

Side Panel (Right) (B1)x2 ø3x10mm (A1)x2 ø3x12mm Side Panel (Left)

Figure 8-1

4 5

Rear Panel Main PWB

8-2

(C3) x1 Pull 1 2 CD Player Unit Rear Panel (C3)x1

(E1) x4 8-2,9-2 (E2) x5 9-2 (E3) x1 (E4) x1 (E5) x1 9-2 9-3 9-2 9-4 9-4 9-4 9-4 8-3 9-1

6 7 8 9 10 10 11 12

Socket PWB Kraoke PWB Front Panel Display PWB

1. Screw ..................... (F1) x1 2. Socket .................... (F2) x1 1. Screw ..................... (G1) x2 1. Screw ..................... (H1) x2 1. Screw ..................... (J1) x15 2. Flat Cable ............... (J2) x1

(C1)x1 ø3x10mm

Tape Mechanism 1. Open the cassette holder. 2. Screw...................... (K1) x6 Headphones PWB 1. Screw ..................... (L1) x1 Turntable Disc Tray 1. Hook ....................... (M1) x2 2. Cover ..................... (M2) x1 1. 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. .............. (N1) x6 1. Hook ....................... (P1) x3 2. Socket .................... (P2) x4 1. Hook ....................... (Q1) x2 2. Hook ....................... (Q2) x3

(D1)x6 ø3x10mm

(E1)x2 ø3x12mm Main PWB

Figure 8-2

Lock Lever

9-6

13 14

Video CD PWB (Note 2) CD Mechanism

10-1 10-2

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. (Fig. 9-1) 3. After that, push forward the CD slide holder. ­8­

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.

CD-BK1600V/1800V/190V
Clamp Lever
(J2)x1 Front Panel Display PWB (J1)x15 ø3x10mm

Tape Mechanism

Cam Gear Rib

Open (K1)x6 ø3x10mm Cassette Holder(Lift/Right) Headphones PWB

(L1)x1 ø3x10mm

Figure 9-1 Figure 9-4

Record/ Playback PWB (E2)x1 Tape Mechanism (E2)x1

(M2) x1
(E1)x2 ø3x10mm Front Panel (E5)x1

Turntable

(E3)x1 (E2)x1 (E4)x1

(E2)x2

Headphones PWB

Disc Tray
Main PWB

(M1) x2

Socket PWB (F1)x1 ø3x10mm (H1)x2 ø3x10mm (F2)x1

CD Player Unit

Figure 9-2 Figure 9-5
Display PWB

(N1) x3 2

Karaoke PWB

Disc Tray

1 (N1) x3
Tape Mechanism

(G1)x2 ø3x10mm

CD Player Unit
Figure 9-6 ­9­

Figure 9-3

CD-BK1600V/1800V/190V
(P2)x2 Video CD PWB Disc Tray
CD Mechanism (Q2) x3

(P1)x3
(Q1) x1 (Q1) x1 Disc Tray

(P2)x2

Figure 10-1 CP-BK1600/BK190
STEP 1 2 REMOVAL Woofer/ Sub Woofer Tweeter PROCEDURE 1. Front Panel ............ (A1) x1 2. Screw ..................... (A2) x8 1. Screw ..................... (B1) x2
(A1) x1

Figure 10-2 CP-BK1800
FIGURE 10-3 10-4 10-4 STEP 1 2 REMOVAL Woofer/ Sub Woofer Tweeter PROCEDURE 1. Front Panel ............ (A1) x1 2. Screw ..................... (A2) x8 1. Screw ..................... (B1) x2 FIGURE 10-5 10-6 10-6
(A1)x1

Driver should be pried away from Speaker Box.

Driver should be pried away from Speaker Box.

Screwdriver
Speaker Box

Screwriver
Speaker Box

Figure 10-3
Speaker Box Woofer

Figure 10-5

Speaker Box Woofer

(A2)x4 ø4x12mm (A2)x4 ø4x12mm

(A2)x4 ø4x12mm

(A2)x4 ø4x12mm

Sub Woofer

Sub Woofer (B1)x2 ø3x10mm Tweeter
(B1)x2 ø3x10mm

Tweeter

Figure 10-4 ­ 10 ­

Figure 10-6

CD-BK1600V/1800V/190V

REMOVING AND REINSTALLING THE MAIN PARTS
TAPE MECHANISM SECTION
Perform steps 1, 2, 3, 4, 5, 7, 8 and 10 of the disassembly method to remove the tape mechanism.
TAPE 2 Record/Playback Head

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.

Erase Head

How to remove the playback head (Tape 1) (See Fig. 11-2)
1. Carefully remove the playback head screws (B1) x 2 pcs.

(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 , and remove the pinch roller (C1) x 1 pc., in the direction of the arrow . Note: When installing the pinch roller, pay attention to the spring mounting position.

TAPE 1 Playback Head

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.

(B1)x1 Ø2x9mm

(B1)x1 Ø2x5mm

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.

Figure 11-2

How to remove the motor (See Fig. 11-5)
1. Remove the screws (F1) x 2 pcs., to remove the motor.

Pinch Roller (C1)x1 Pull

Pull


Pinch Roller Pawl

Figure 11-3

Motor

Motor TAPE 2 FF/REW Belt (D2)x1 Motor TAPE 2 Main Belt (D1)x1 TAPE 1 Main Belt (E1)x1

(F1) x2

Ø2.6x5mm
TAPE 1 Main Belt (D1)x1 Main Belt (E1)x1 FF/REW Belt (E2)x1

Figure 11-5 ­ 11 ­

Figure 11-4

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.

T/T Up/Down Motor Disc Tray (A1)x2 (A1)x3

Pulley Motor Drive Belt (A2) x1
Figure 12-1

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.

Stop Washer (B1) x2 (B3) x1 ø2.6 x6mm

Pickup Shaft (B2) x1 CD Mechanism Gear (B4) x1
Figure 12-2

ADJUSTMENT
MECHANISM SECTION
· Driving Force Check
Torque Meter Play: TW-2111 Specified Value Tape 1: Over 80 g Tape 2: Over 80 g Normal speed MTT-111

· Tape Speed
Test Tape Adjusting Point Variable Resistor in motor. Specified Value 3,000 ± 30 Hz Instrument Connection Speaker terminal (Load resistance: 6 ohms)

· Torque Check
Torque Meter Specified Value Tape 1 Play: TW-2111 Fast forward: TW-2231 Rewind: TW-2231 30 to 80 g. cm -- -- Tape 2 30 to 80 g.cm 70 to 180 g.cm 70 to 180 g.cm

TAPE MECHANISM

Motor

Variable Resistor in motor
Figure 12-3 ­ 12 ­

CD-BK1600V/1800V/190V 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 1,602 kHz 531 kHz 990 kHz Setting/ Instrument Adjusting Connection Parts T351 *1 (fL): T306 *2 1.1 ± 0.1 V (fL): T303 *1

· FM RF Signal generator: 400Hz, 22.5 kHz dev., FM modulated
Test Stage Frequency Frequency Display FM Band Coverage FM RF -- 87.50 MHz Setting/ Adjusting Point T301(fL): 3.4 V ± 0.1V L312 Instrument Connection *1 *2

AM IF AM Band Coverage

450 kHz --

98.00 MHz 98.00 MHz (10-30 dB)

AM Tracking 990 kHz

*1. Input: Antenna *2. Input: Antenna

Output: TP301 Output: Speaker terminal

*1. Input: Antenna *2. Input: Antenna

Output: TP302 Output: TP301
SO302 FM TERMINAL CNP301 AM LOOP ANTENNA

MAIN PWB

1
IC301

T303

AM TRACKING fL

L312 T302 TP301 R382 T301 FM BAND COVERAGE fL T351 AM IF TP302 R357 FM IF FM RF AM BAND COVERAGE fL T306

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.132 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

CD ERROR CODE DESCRIPTION
Error 0001 0002 0101 0103 0201 0203 0302 0306 0307 0308 State Code [Servo System Error] Cannot detect Pickup-in SW DSP access error [Error during close operation] Open/Close SW Low High not functioning Open/Close SW High Low not functioning [Error during open operation] Open/Close SW Low High not functioning Open/Close SW High Low not functioning [Error during skip operation] Pickup-in SW is not detected During Disc 1 search, Open/Close SW or Clamp SW or Disc SW do not change to low. Clamp SW Low High not functioning Clamp SW High Low not functioning
T Stopped 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

T 1

FDO

TE
3

EFBL
2

CH2 v/DIV 200mV =Filter= Smoothing : ON BW : FULL =Offset= CH1 : 0.000V CH2 : 0.000V CH3 : 0.00V CH4 : 0.00V =Record Length= Main : 100K Zoom : 2k =Trigger= Mode : SINGLE Type : EDGE CH1 Delay : 0.0ns Hold off : 0.2us

Figure 13-2 ­ 13 ­

CD-BK1600V/1800V/190V
· TEST MODE Setting of test mode Any one test mode can be set by pressing several keys as follows. + + TEST: CD operation test

Function:-CD test mode. -Enter test mode.

C D

T E S T
IL isn't done OPEN/CLOSE operation is using manual.

<<

>>, <<

>> buttons make pick's slide possible.

<> key input.

<> key input.

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

Laser ON.

<> key input.

<< << <<

1>> key: Track 4 2>> key: Track 9 3>> key: Track 15

Tracking OFF play at that specific point.

<> key input. <> key input.

Tracking ON play at that specific point.

STOP <> key input.

STOP

VOL -- Last memory BAL -- CENTER P.GEQ -- FLAT X-BASS -- OFF To cancel : Power OFF

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

­ 14 ­

CD-BK1600V/1800V/190V

NOTES ON SCHEMATIC DIAGRAM
· Resistor: To differentiate the units of resistors, such symbol as K and M are used: the symbol K means 1000 ohm and the symbol M means 1000 kohm and the resistor without any symbol is ohm-type resistor. Besides, the one with "Fusible" is a fuse type. · Capacitor: To indicate the unit of capacitor, a symbol P is used: this symbol P means micro-micro-farad and the unit of the capacitor without such a symbol is microfarad. As to electrolytic capacitor, the expression "capacitance/withstand voltage" is used. (CH), (TH), (RH), (UJ): Temperature compensation (ML): Mylar type (P.P.): Polypropylene type · Schematic diagram and Wiring Side of P.W.Board for this model are subject to change for improvement without prior notice.
REF. NO SW1 SW2 SW3 SW4 SW401 SW601 SW602 SW603 SW604 SW605 SW606 SW607 SW608 SW609 SW610 SW611 SW612 SW613 DESCRIPTION OPEN/CLOSE CLAMP DISC NUMBER PICKUP IN SPAN SELECTOR ON/STAND BY CLOCK TIMER/SLEEP AUDIO KARAOKE PBC OSD/ON/OFF DIGEST BOOK MARK DISC SKIP OPEN/CLOSE DIMMER X-BASS/DEMO EQUALIZER POSITION ON--OFF ON--OFF ON--OFF ON--OFF 50/9--100/10 ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF

· The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chassis with no signal given. 1. In the tuner section, ( ) indicates AM < > indicates FM stereo 2. In the main section, a tape is being played back. 3. In the deck section, a tape is being played back. ( ) indicates the record state. 4. In the power section, a tape is being played back. 5. In the CD section, the CD is stopped. · Parts marked with " "( ) are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

REF. NO SW614 SW615 SW616 SW617 SW618 SW619 SW620 SW621 SW622 SW623 SW624 SW625 SW626 SW627 SW628 SW629 SW801

DESCRIPTION VOLUME UP VOLUME DOWN CD TAPE TUNING /TIME DOWN MEMORY/SET REWIND FAST FORWARD PLAY/REPEAT STOP REVERSE PLAY REC/PAUSE TUNING/TIME UP VIDEO/AUX TUNER (BAND) REVERSE MODE VOLTAGE SELECTOR

POSITION ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF 110--127-- 220--230-240

3
FRONT VIEW

FRONT VIEW

TOP VIEW

FRONT VIEW

E C B (S) (G) (D) (1) (2) (3) KTA1266 GR 2SC1845 F KRC102 M KTA1273 Y KRC102 S KTC3203 Y KRC104 M KTC3199 GR KRC104 S KRC107 M KTA1271 Y KTC3194 Y KTA1274 Y

B C E
KTC2026

2

1
4204SRT7 KDV147B SVC348S

KTA1298 Y KTA1504 GR KTC3265 Y

Figure 15 TYPES OF TRANSISTOR AND LED

­ 15 ­

CD-BK1600V/1800V/190V
XV2 27MHz XV1 4.19MHz

X2

X1

HD3 HD4

~

~ ~

DQ15 DQ12 DQ11

X2

~

DQ8 A8

VDD,CKSEL,HSELX, HSELA,AVDD

31 26 22 19

~ ~

65 MD15 62 MD0 58 MD4 56 MD5 54 53 52 49 48
MD7 MCAS MWE MRAS MA0

64 HD7

~ ~

ICV3 SDM4260C DRAM

A4 A3 A0 RAS WE DQ4 DQ3 DQ0

ICV2 D61012GC MPEG DECODER

PWR_MPEG

CDBCK CDI

AUDO AUBCK

VOUT1

2

38 MA8

38

35 32 33 9597 98 99

15 1

15

44

18 19 20 22

JK671 VIDO OUT CNPV3

6

ICV4 NJM2267M VIDEO OPERATION AMP.

QV2

QV3

1

+B3

MDI MDO MCK MBUSY

SBUSY

~ ~

~ ~

7 5

45 MA3 42 MA4

AULRCK CDC2PO CDLRCK

20 6 1

VDD

~ ~

~

16 14 13 DQ7 10

ICV1 MPEG CONTROLLER IX0352AW

~ ~

~ ~

~

~

23 17

~
7

~
25 17 16 14 9

~
45 42 33

36 34

57 HD0 92 84 83 76 75 63 51 44 36 25

X1

39

~

73

HD0

MD8

HD7

2127 3545

14 13 70 MD11 68 MD12

10

7 5

~

~

~ ~

M3 T/T UP/DOWN BI4 MOTOR

CNS4 CNP4

-

SW2 CLAMP

SW1 OPEN/ CLOSE

VCC1

VCC4

VCC2

VCC3

CNP12 MBUSY 12 SBUSY 11 GND 10 CLAMP SW
TO DISPLAY SECTION

+5V

CD RES CLK DI DO CE DRF WRQ CDINT

CONT5

SLD0

SPD0

FD0

TD0

2 1
Q2

56 55 54 35 57 40 30 CONT2 31 CONT3

CNP11
TO MAIN SECTION (TO IC401)

32 CONT4

+5V(+B3) DGND L-CH AGND R-CH

5 4 3 2 1
53 76 CONT7 48 RCHO 47 RVSS 46 LVSS 45 LCHO

RFEV

IC2 LC78641E SERVO/SIGNAL CONTROL

XIN VDD5V

RES

XOUT

75 CONT6

WRQ

DEF

INT

DO

CE

CL

DI

65 66 67 68 69 70

Figure 16 BLOCK DIAGRAM (1/4) ­ 16 ­

~

+

SW3 DISC NUMBER

M

6 5 4 3 2 1

6 5 4 3 2 1

6
35 29 22 21 14 8 27 39 38 42 41 25 17 2 1 6 5 4 26

5 4 3 2 1

9 8 7 6 5 4 3
59 33 26 25 24 23 19

71 72

~

~ ~

2
40 41 50

SW4 PICKUP IN

IC3 M63001FP FOCUS/TRACKING/ SPIN/SLED DRIVER

16 15

7

18

40

24 23 28

M
M1 SPINDLE MOTOR

M
M2 SLED MOTOR

+3.3V TRACKING COIL

LASER DRIVER

Q3

FOCUS COIL

TE 16 FE 15 RFEV 14 HFL
7 3 22 21 FE20 FE 19 TE18 TE 17

LDD 8 PD 7 TIN2 4 TIN1 3 FIN2 2 FIN1 1
30 23 11 9

XVDD 50 RVDD 49 LVDD 44 VDD 36 ADAVDD 18 VVDD 5
73

IC1 HFL LA9235M SERVO AMP.

+3.3V

+5V

52

51

Q1
XL1 16.9344MHz CONSTANT VOLTAGR +3.3V

+5V PICKUP UNIT

CD-BK1600V/1800V/190V
TO MAIN SECTION (TO IC601) +10V(A) GND(D) GND(A) OUT(R)

CLOCK

OUT(L)

LATCH

MIC IN CNSK1 BIK1 QK1
23 22

1

2

3

4

5

6

7

DATA
8 8

IN(R)

IN(L)

9

10 11

1

2

3

4

5

6

7

9

10 11

QK3

QK2

42 41 40

36 35

CLDCK

DATA

LATCH

32

31

LOUT

MIC1VOLIN ROUT MIC2IN

ICK1 M65856SP MIC AMP.

4

7

8

9

12 13

MIC2VOLIN

MICLOUT

MIC2OUT

MIC1IN

VRK2 MIC2 VOLUME

VRK1 MIC1 VOLUME

PINK1 CHASIS GND JK2 MIC2 JK1 MIC1

Figure 17 BLOCK DIAGRAM (2/4) ­ 17 ­

VCC GND

RIN

LIN

CD-BK1600V/1800V/190V

FM ANTENNA

+B2

SO302

1

BF301

2

1

CF352

IC301 TA7358AP FM FRONT END

6 9

T302

1

CF303

3
CF351 X351

T351

3 4
FM RF L312

5

7 8
FM OSC

1

3 4 5 9 8 17 13
AM IF FM+B FM MO/ST GND DET VCO L FM/AM OUT MPXIN R FM/AM

1 2
T301 AM MIX

IC303 LA1832S FM IF DET./ FM MPX./AM IF

14 15

23
AM OSC IN
AM LOOP ANTENNA Q302 CNP302 FM OSC

21 24
AM RF IN

7
STEREO

18

16

12

1 2

1 2

T303

AM TRACKING

T306

AM BAND COVERAGE

VT

X352 4.5MHZ

20

1
OSC

22 16 15

11

3 4 5 6
VDD

IC302 LC72131 PLL(TUNER) FM/AM MO/ST
FM +B SWITCHING Q360
CNP403

DO

CE

CL

DI

17

7
FM

9 10

21

1
FROM KARAOKE SECTION CNSK1

+B2

+B2 SO401 VIDEO/AUX L R

2 3

7 8
AUX

23 1 2 CL 24 21 R 4 L
DI CE SYSTEM MUTE Q401 Q402

TAPE

CNS402

FROM CD SECTION CNP11

1 2 3 4 5

R

TUNER

L

CD

9 R 16 L 10 R 15 L 11 R 14 L 12 R 13
L

L

R

IC401 LC75341 AUDIO PROCESSOR

IC101 AN7345K PLAYBACK AND RECORD/ PLAYBACK AMP.

7 8 17 18
+B2

3
MUTING Q110 Q111

PB HEAD L-CH TAPE 1 R-CH SWITCHING REC PB HEAD REC P.B. L-CH R-CH

TAPE 2

Q104~ Q107

1 24 L(T2) 2 R(T2) 23 L NF 3 R NF 22
L(T1) R(T1) POP REDUCE

13
P.B

REC/PLAY

4 L 21 R 5 20
T1/T2 H/N

PB

6

AC BIAS

L REC R REC REF

9 REC 16 14 12
NOR/ HIGH T1/T2

7 18

L REC R

8 L NF 17 R NF 10 ALC

15
SWITCHING Q108 Q109 SWITCHING Q103

19
T1/T2

Q101 SWITCHING

Q102 BIAS SWITCHING Q112 Q113 BAIS

ERASE HEAD

BIAS Q114 OSC L104

Figure 18 BLOCK DIAGRAM (3/4) ­ 18 ­

CD-BK1600V/1800V/190V

+B2

SW401 SPAN SELECTOR

FL701 FL DISPLAY

R. PLAY F. PLAY T2 PLAY T1 PLAY
Q604 Q608

1 2 3

4 ~ 11 12 ~14 15 ~ 20 21 ~36 37 38 39

SOLENOID MOTOR TAPE DRIVER MOTOR
Q607 Q606

Q601-Q603

M

+B4

LED722
Q605

60 5857 5655 54 5352 51 50 49 48 4746 45 44 4342 4140 39 63 38 78 37 79 VLOAD SYS. STOP 36 IC701 80 35 IX0331AW AVDD 34 85 SYSTEM MICROCOMPUTER 33 90 ~ ~
VDD

1 RX701 3 +B4 2

+B4

RESET

92 93 ~
VDD

31
VDD DO CE CL DI

KEY SW601-SW629

~

~

+B2

100

1 4 5 6
+B4

7 ~ 9 10 111213 15 16 17 ~20 21 22 23 24
+B4 XL701 4.1943MHz RESET IC Q609

JK951 HEADPHONES
TO CD SECTION +B3

SP. DET.

Q901 Q902 Q903 Q904

3

IC704 KIA7042AP

1
+B4 RL951

Q971

M
FAN MOTOR SO902 SPEAKER TERMINAL

2

SYSTEM MUTE Q401 Q402

1 STK402-040 7 R-OUT 15 POWER AMP. 11 L-OUT -Vcc 13 +Vcc 9 8
­B1 +B1 F801 T4.0A L 250V
PT801 POWER TRONSFORMER

IC901

FRONT SPEAKER

SURROND SPEAKER BK1800V/190V ONLY

D801

REC/PLAY SW801 VOLTAGE SELECTOR F802 T4.0A L 250V 230-240V 110V 127V 220V SO801 AC INPUT SOCKET

KIA7810AP VOLTAGE REGULATOR
+B2 A10V

D802-D805

IC841
F803 T2.0A L 250V AC POWER SUPPLY CORD AC 110V/127/220/ 230-240V, 50/60Hz

+B3

+5V

IC851 KIA7805P VOLTAGE REGULATOR

T1/T2 +B4 UNSWITCH 5V

IC852 AN78L05 CONSTANT VOLTAGE REGULATOR

TF

BAIS

Figure 19 BLOCK DIAGRAM (4/4) ­ 19 ­

CD-BK1600V/1800V/190V

A
DV5 1SS133 QV4 KTA1298 Y RV84 4.7K
+B

QV2 KTA1298 Y CV1 47/6.3

RV85 10K
+B

+B +B +B

RV1 10K

B
10 8 18 4
TO CD SECTION P23 11-C, P23 11-D

3.3V +5V C2PO LRCK BCLK DATAD MBUSY AV_GND D_GND MDI MDO MCLK

+B +B

RV2 1K

DV4 KDS193 2

QV3 KRC104 S
3 1

3 2 16 11 12 14 13 15

+B

C

+B

+B

RV15 1K

D
1 2 3 4 5 6 7
VPP VDD RESET SO SI SCK GND +B

RV93

10K

L64 0.82µH

RV94

TEST POINT

10K CV2 0.22

RV20 1K

1K

E

16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 HD7 64 17 HD6 63 18 MDI HD5 62 19 MDO MCK 20 HD4 61 21 HD3 60 VOCAL CANCEL 1 HD2 59 22 MBUSY K_C_DATA 2 HD1 58 23 HD0 57 24 VDD1 ICV1 HA 56 25 AVSS IX0352AW HDAK 55 26 MPEG CONTROLLER HWR 54 27 28 HRD 53 29 HCS 52 30 MPEG RESET 51 31 50 32 49 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
PWR_MPEG MO_SPEED CD-LD M+ CD-LD MVDD0 VSS0 CD-SOL KEY CONT. K_C_STRB K_C_CLK AVREF RESET INT SBUSY AVDD VSS1 XT2 XT1 IC X2 X1

CV5 0.22

RV86 4.7K

RV11 1K

CV4 47/6.3

+B

CV 0.

XV2 27MHz

CV 27 XV2 C 2

RV22

RV38 RV39 RV40 RV41 RV42 RV43 RV44 RV45 RV46 RV47 RV48 RV49 RV50

3.9K 3.9K 3.9K 3.9K 3.9K 3.9K 3.9K 3.9K 3.9K 3.9K 3.9K 3.9K 3.9K

RV37 1K

+B

RES

19
SBUSY

XV1 4.19MHz RV59 10K

17
TO CD SECTION P23 11-C, P23 11-D, P23 11-F

CV9 0.22 C 4

F

AUCLK

1 6 7 5 9

AUBCK AULRCK AUDO AUEMP

G

H

· NOTES ON SCHEMATIC DIAGRAM can be found on page 15.
1 2 3 4 5 6

Figure 20 SCHEMATIC DIAGRAM (1/12) ­ 20 ­

CD-BK1600V/1800V/190V

CD VIDEO PWB-B(1/2)
VIDEO SIGNAL

+B +B

RV64 22

RV95 6.8K

CV39 1000/6.3

RV62 150 RV63 150

ICV4 NJM2267M VIDEO OPERATION AMP.

4 3 2 1
CV17 CV183 CV15 4.7/25

5 6 7 8
0.01 30/6.3 RV61 100K RV60 100 RV96 33K CV40 22/6.3 CV41 4.7/25

+B

1 2
CNPV3

FROM MAIN PWB P27 10-B CNS404

+B

+B

CV13 0.1

CV22 47/6.3

CV19 0.22

CV11 0.22
VDD GND CDEMPH CDBCK CDLRCK

CV14 0.1

CV16 0.1

+B

100 99 98 97 96 9594 93 9291 90 8988 8786 85 84 83 82 81 80 79 78 77 76
VOUT1 AGND CBP1 AVDD CBP2 HSYNC NSYNC

XV2 27MHz

CV6 27P XV2 CV7 27P

1 VDD 2 HD7 3 HD6 4 HD5 5 HD4 6 GND 7 HD3 8 HD2 9 HD1
10 HD0 11 GND 12 GND 13 X1 14 X2 15 VDD 16 CKSEL 17 VDD 18 GND 19 HCS 20 HRD 21 HWR 22 HA 23 HSELX 24 HSELA 25 VDD

99

CDI

100 GND

76 GND 77 VCLK

ICV2 D61012GC MPEG DECODER

GND AUCLK

AULRCK

AUBCK

+B

AUEMPH

27 RESET 26 GND
HDAK INT

MRAS 49 GND 50

AUDO

VDD GND

MA4 GND

MA7 MA6

VDD

MA8

MA3

MA2

MA1

CV9 0.22 CV10 47/6.3
+B

MA5

MA0

75 74 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
VDD GND MD8

CDC2PO

CSYNC VCLK

VOUT3 CBP3

VOUT2

VDD

CV24 0.22 CV21 0.22

+B

DQ6

26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
CV12 0.22

CV20 0.22 L63 0.82

10 DQ7 11 12 13 WE 14 RAS 15 16 A0 17 A1 18 A2 19 A3 20 VDD
CV25 0.22

+B

CV23 47/6.3

7

8

9

10

11

ICV3 SDM4260C DRAM

1 2 3 4 5 6 7 8 9

VDD DQ0 DQ1 DQ2 DQ3 VDD DQ4 DQ5

40 39 38 DQ13 37 DQ12 36 VSS 35 DQ11 34 DQ10 33 DQ9 32 DQ8 31 30 LCAS 29 UCAS 28 OE 27 A8 26 A7 25 A6 24 A5 23 A4 22 VSS 21
VSS DQ15 DQ14

RV50

3.9K

12

Figure 21 SCHEMATIC DIAGRAM (2/12) ­ 21 ­

CD-BK1600V/1800V/190V

CD VIDEO PWB-B(2/2)
A

CD SIGNAL
CNS1B CNS1A
+B 7 6 5 4 3 2 1 CNP1 R50 47 R51 R52 R53 R54 68K 68K 68K 68K R56 68K
1 1 1

S

B

Vcc Vref E A B F C

7 6 5 4 3 2

7 6 5 4 3 2

7 6 5 4 3 2

8
IC1 LA9236M SERVO AMP.
C23 R12 0.047 680 C11 47/6.3
30

TIN1 FIN1 FIN2 TIN2 R55 68K FIN1 FIN2 1

5
C25 0.022
R10 27K C20 0.1 C17 0.0047

R79 1.5M C24 2.2/50 C21 0.1 R11 12K R80 1M R 1

REF 2 REF 3 REF

TIN1

28

C

TIN2 4 C6 100/6.3 C8 REF1 5 0.1 VREF 6 C7 7 10/35 LDD 8 GND 9 LDON C53 0.001 C51 47/6.3 R25 10K

REF

10 11

R47 3.3 Q3 KTA1504 GR

AGON 12 EFBL 13 TEST0 NC 14 TES1 15

PH REF 27 RF NC C13 26 0.01 25 PH REF DH C14 BH 24 0.33 ODRV 23 APC RFEV PH/BH 22 REF FE­ 21 LPF FE R3 REF REF 20 TE­ 47K ODRV 19 LPF AGCON 18 TE R4 REF REF HFL 10K REF 17 REF LPF 16 NC TEST REF

R5 39K

R6 R7 27K 6.8K

C54 47/10

C55 0.01

ODRV RFSW REF 29 R42 NC 120K AGCON RF­

C18 3P

R8 330

R15 10K

C22 100P

VCC

C12 0.022

C 0 C42 C26 68P 0.047 P

C82 0.022 (H,E) C28 C41 100/6.3 47/10 R

1 13
C52 0.01

E
TRTR+ FO+ FOGND

FO+

3 4 5

3 4 5 6 7 8

3 4 5 6 7 8

+

FOTRACTUATOR

IC3 M63001FP

CNS2B

CNS2A

PD 7 VR 8 LD

6

CNP2

F

PICKUP UNIT

IC3 FOCUSE/TRACKING/ SPIN/SLED DRIVER

GND

10 11 12 13 14

CNS3B

CNS3A

21

G

M1 SPINDLE MOTOR M2 SLED MOTOR SW4 PICKUP IN

CNP3A

M
M

+

+

-

6 5 4 3 2 1

6 5 4 3 2 1

6 5 4 3 2 1

CNP3 SP­ 6 SP+ 5 SL+ 4 SL­ 3 PUIN 2 GND(D) 1

+B C49 100/6.3 +B

H

· NOTES ON SCHEMATIC DIAGRAM can be found on page 15.
1 2 3 4 5 6

Figure 22 SCHEMATIC DIAGRAM (3/12) ­ 22 ­

­

C50 100/6.3

­

CD MOTOR PWB-D

Vref 20 MUTE

+

­

R48 6.8K

19

­

+ ­

+

+ + +

­

+B

­

+

­

SL­ 15 SL+ 16 SLDO 17 VCC1 18 STANDBY

+

­

2

2

2

C46 0.022

+

­

TR+

1

1

1

1 2 3 4 5 6 7 8

TR­ TR+ FO+ FO­ GND PD VR LD

+

­

+

­

TDO FDO

TO FD FO NC FO+ FO­ TR+ TR­

1 2 3 4 5 6 7 8 9

+ ­

+ ­ + ­

LD_M+ LD_M­ VCC4 +B 40 LOADING M+ 39 LOADING M­
42 41 38 37 NC 36 NC 35 34 33 32 31 30 29 28 27 25 24 23 22

C47 100/6.3

GND

VCC3 SP­ SP+ 26 SPO SPDO VCC2(SPN)

+B

TDO R35

EFBL TDO

D

4

CD-BK1600V/1800V/190V

3
IC2 SERVO/SIGNAL CONTROL
+B R94 10K R95 10K C71 C72 C73 C74 C75 C76 C77 C78 C80 0.1 100P 0.01 100P 100P 100P 100P 100P 100P R71 R72 R73 R74 R75 R76 R77 R78 1K 1K 1K 1K 1K 1K 1K 1K DRF RES Q4 WRQ INT KTA1266GR DO DI CL CE
DISC_NO O/C

DEF RES WRQ

8

7
80

DEFECT FSEQ R68 V/vP 1K CONT7 CONT6 R67 1K VSS

EFMO NC NC NC NC
79 78 77 76 75

73

72

71

74

70

VDD5V

DO DI CL CE

L62 2.2µH +B C44 0.022 SBCK PW C45 100/6.3

69

68

67

66

S/H

D/A

NC LASER CONT1 CONT2 CONT3 CONT4 CONT5

R19 47

C23 R12 0.047 680 PD01 1 R13 R79 1.5M C24 680PD02 2 2.2/50 VVSS 3 C21 C81 0.022 0.1 4 R11 PCKIST 12K VVDD 5 FR R80 1M R14 HFL 6 1.2K SLCIST 7 R15 8 10K SLCO 8 9 0 EFMIN 10 C27 JITTV 11 NC 0.1 JITTC 12 42 C26 P 0.047 BH 13 PH(RFENV) 14 FE 15 TE 16 VREF 17 ADAVDD 18 C29 0.022 ADAVSS 19 PHREF C28 C41 NC 100/6.3 47/10 BHREF 20 NC 21 R44 TBLO 22 1K
C22 100P EFBL TDO FDO
23 24

65

GENERAL

COMMAND INTERFACE

10
100 1K 1K 1K AUCLK DATAD BCLK LRCK AUDO AUBCK AULRCK +B +5V

PLL VCEC

FRAME SYNC DEFECT,PROTECT EFM DECODE CLV CONTROL

IC2 SUBCODE LC78636E DECODE CRC
INTERPOLATION MUTE ATTENUATION DIGITAL DEEMPHASIS EXTERNAL SERIAL AUDIO IN OUT FILTER

64 63

62 SBSY 61 SFSY 60 16M 59 58 57 56 55 54 53 52 51

12 11
R85 R86 R92 R93 R89 1K R90 1K R91 1K XL1 R20 16.9344MHz 220 C34 0.022 C40 0.0015 R82 2.2K R81 2.2K C43 0.0015 C56 330/6.3 1 2 3 4 5 6 7 8 TO MPEG SECTION P20 1-F, P20 1-C

SLICE LEVEL CONTROL JITER DEFECT CONTROL
SW

CLOCK GENERATOR

SW
AUTO ADJUST

DATA DATACK LRSY ASDFIN ASDACK ASLRCK XVSS

XOUT XIN XVDD

A/D

SERVO PROCESSEROR

50 RVDD 49 48 47 46 45 44 43

CNP11 R-CH AGND L-CH DGND +5V 1 2 3 4 5

1BIT DAC

LPF

+ ­

GENERAL

EFLG

ERROR AUDIO CORRECT OUT FSX
VDD 36 DOUT
35 37 38

42 41
40

FG(D_Vref)

28

1.2K 30 1.2K 31 1K 32 1K 33 PCK R1 NC 34 1K C2F

SLDO

25

26

27

29

39

1

TDO R35 FDO 1K

SPDO

2 6

TEST

RCHO RVSS LVSS LCHO LVDD MUTER NC MUTEL NC EMPH R96 1K

P26 1-B CNS402 FROM MAIN PWB

C39 C38 10/16 10/16

R83 R84 10K 10K

+B C83 0.022

AUEMP 3.3V AV_GND D_GND

9 10 11 12 13 14 15 1 2 3 4 5 6 7 8 9 CDINT WRQ DRF CE DO DI CLK CD RES CLAMP SW TO MPEG SECTION P20 1-F, P20 1-C

R39 470
SLDO

C30 0.022

R40 R45 R46 R17

R38 270

9
Q1 KTC3265 Y +B L61 0.82µH
ZD61 Z02W3.9 C64 47/6.3 R58 220

C31 100/6.3

MDO MDI R97 3.9K INT WRQ DRF CE DO DI CL RES MCLK

R16 10K

B M+ M­ 7 6.3

+B R21 470 D21 KDS193 R22 470 D22 KDS193 2 Q2 KRC102 M 1 3

P25 12-B CNS701 FROM DISPLAY PWB

10 GND 11 SBUSY 12 MBUSY

CNP12 MBUSY SBUSY C2PO RES O/C GND(D) DISC_NO M+ M­ CNP4 1 2 3 4 5 6 16 17 18 19 1 2 3 4 5 6 1 2 3 4 5 6 TO MPEG SECTION P20 1-C, P20 1-F

+B

CNS4

SW1 OPEN/CLOSE SW2 CLAMP SW3 DISC NUMBER + M M3 ­ T/T UP/DOWN BI4 LOADING

CD LOADING MOTOR PWB-F

· The numbers 1 to 13 are waveform numbers shown in page 40.
7 8 9 10 11 12

Figure 23 SCHEMATIC DIAGRAM (4/12) ­ 23 ­

CD-BK1600V/1800V/190V

DISPLAY PWB-A2
A

FL701 FL DISPLAY
49 48 47 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 16 15 14 13 12 11 10 9 8 7 6 3 2 1 Q602 KTC3199 GR Q601 KTC3199 GR R611 100K Q603 KTC3199 GR C621 1/50 R622 100K R616 1K C609 47/50 C616 1/50 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 1K 57 1K 56 1K 55 22K 54 1K 53 1K 52 1K 51 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
G11 G10 G6 G9 G8 G7 G4 G5 G3 G2 G1 P5 P4 P3 P2 P1 VLOAD 80 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15/DIST0 P16/DIST1 P17/DIST2 P18/DIST3 P19 P20 P21 P22 VDD

R602 100K

B

P22 P21 P20 P19 P18 P17 P16 P15 P14 P13 P12 P11 P10 P09 P08 P07 P06 P05 P04 P03 P02 P01 G11 G10 G09 G08 G07 G06 G05 G04 G03 G02 G01 F F F

R601 1K

R606 1K

1

NO USE S-BUSY T-BIAS T_T1/T2 REC/PLAY RES OUT DRF WRQ RESET

R621 33

C

IC701 IX0331AW SYSTEM MICROCOMPUTER

X2 X1 VPP/IC XT2 CD INT VDD CD CLK CD DI CD DO CD CE CE CLK DI DO

R641 1K 10K

D622 DS1SS133 R642 R643 R644 R645 R646 R647 R648 D612 DS1SS133

SPN DISTOUT/SW OUT KARAOKE LATCH MIC IN FPB FPA PLAY SW_B PLAY SW_A VDD CD CLAMP SW T2 RUN 47 AC RLY_CONT 49 SPK_DET 50 T1 RUN TIMER LED T_MOTOR T_SOL_A T_SOL_B 31 KEY0 32 KEY1 33 KEY2

D
R730 1K

AVSS M-BUSY/TUN SM NO USE VSS REMOCON NO USE SP_RLY SYS STOP SPEANA2 AVref AVDD SPEANA1 SPEANA0

R667

R668 R669

R653 R654

R659

R661 R663 R664 R665

R673 R674 R675

R632 R629 R633 R634 R635

10K 10K 10K 10K 10K

50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 2.2K 2.2K 2.2K 2.2K 1K 10K 1K 1K 1K 1K R676 4.7K R666 1K 1K 1K 1K

R62

E

R603 10K

C601 270P R607 33K R608 68K

C605 270P

R613 820K

IC702 270 KIA4558P (1/4) OPE AMP.
R617 220K 2 R618 220K

C606 0.0027 C602 0.0027 R614 390K

R605 C603 56K 0.0068 R609 470K

R612 1M C604 0.0068 C607 R615 R610 15K

R619 2.2M 2

3

4 1 8 7
C614 2.2/50 C611 0.022

R636 68K

ZD601 DZ6.2BSC

R638 47K Q607 KTA1273 Y

D615 DS1SS133 R662 10K R651 10K

TAPE MECHANISM PWB-D1
TAPE MOTOR

1 FC702 1
CNP703 T2 PLAY +5V T2 RUN MTR + T2 SOL T1 SOL R_REC T1 RUN T1 RUN COM F-REC C620 47/25 D613 D614

M

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

SOLENOIDE

G

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

Q605 KTA1271 Y

R652 10K Q606 KTA1271 Y

SOLENOIDE

D613,D614: DS1SS133

13

13

H

· NOTES ON SCHEMATIC DIAGRAM can be found on page 15.
1 2 3 4 5 6

Figure 24 SCHEMATIC DIAGRAM (5/12) ­ 24 ­

R658 47K

C608 0.022 R620 180K

C610 0.022

F

IC703 KIA4558P OPE AMP.

D611 DS1SS133

C618 R655 10/16 1K

Q608 KTA3199 GR

R627 100K

5 6

R650 68K

0.022 150K

D604 DS1SS133

R626 100K

D601 DS1SS133

D603 DS1SS133 C613 2.2/50

R604 12K

R656 10K

5 6

8 7

C612 2.2/50

R625 100K

3

4 1

R624 270(1/4) D602 DS1SS133

LED722

SMUTE

1 2 3 R677 1K 4 R678 1K 5 R679 1K 6 R680 1K 7 R681 1K 8 R682 1K 9 R683 1K 10 R684 1K 11 12 XL701 13 4.1943MHz 14 R685 1K 15 16 R686 1K 17 R687 1K 18 R688 1K 19 R689 1K 20 R690 1K 21 R691 1K 22 R692 1K 23 R693 1K 24 25 R694 1K 26 27 28 29 30

R725

R670 10K R671 10K R672 10K

R649 Q60410K KTC3199 GR C617 R637 10/16 1K

R660 10K

C624 0.022

CD-BK1600V/1800V/190V

G08 G07 G06 G05 G04 G03 G02 G01 F F F
3 12 11 10 9 8 7 6 3 2 1 BI701 CD INT WRQ(DSP) DRF CD CE CD DO CD DI CD CLK RES OUT CLAMP SW S_BUSY M_BUSY CNS701

89 90 91 92 93 94 95 96 97 98 99 100
G11 G10 G6 G9 G8 G7 G4 G5 G3 G2 G1
VDD

1

NO USE S-BUSY T-BIAS T_T1/T2 REC/PLAY RES OUT DRF WRQ RESET

C701 331AW YSTEM COMPUTER

X2 X1 VPP/IC XT2 CD INT VDD CD CLK CD DI CD DO CD CE CE CLK DI DO

CONT

31 KEY0 32 KEY1 33 KEY2

AVSS M-BUSY/TUN SM NO USE

VSS REMOCON NO USE SP_RLY SYS STOP

T_SOL_B

SPEANA2

SMUTE

AVref

AVDD

SPEANA1 SPEANA0

1 2 3 R677 1K 4 R678 1K 5 R679 1K 6 R680 1K 7 R681 1K 8 R682 1K 9 R683 1K 10 R684 1K 11 12 XL701 13 4.1943MHz 14 R685 1K 15 16 R686 1K 17 R687 1K 18 R688 1K 19 R689 1K 20 R690 1K 21 R691 1K 22 R692 1K 23 R693 1K 24 25 R694 1K 26 27 28 29 30 R676 4.7K R666 1K

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

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

C621 1/50

C625 220/10

C624 0.022

P23 12-E TO CD VIDEO PWB CNP12

C622 15P C623 18P

R708 10K

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

1K 10K

1K

1K 1K 1K

MIC IN KARAOKE LATCH SPAN SW OUT TUN SM CE DO DI CLK T_BIAS T_T1/T2 REC/PLAY SPA_SIG SMUTE VF1 -VP VF2 SP_RLY M_10V -15V D_GND +5V A_GND UN_SW 5V AC_RLY CONT SP_DET M_GND CNP702

27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

27

FC701

P27 12-D

CNP401 TO MAIN PWB

R667

R668 R669

LED722

R673 R674 R675

1

D616 DS1SS133

R670 10K R671 10K R672 10K

L601 100µH

5V BACK UP D617 DS1SS133 C628 2 3 3.3/50

R716 4.7K IC704 KIA7042P RESET 3 2 1

D620 DS1SS133 RX701 N63H380A REMOTE SENSOR D621 DS1SS133

R704 47K

C629 0.022

D618 DS1SS133

C626 0.1/50

C630 10/50

Q609 1 KRC102 M

R723 100 1 2 3 C631 0.022 C632 47/25

R697 680

R699 820

R703 1K

R706 1.5K

R709 2.2K

R711 100K

R712 2.7K

R714 3.9K

R718 5.6K

R719 10K

R721 18K

R722 33K

R724 100K SW628 TUNER (BAND)

SW616 SW617 SW618 SW619 SW620 SW621 SW622 SW623 SW624 SW625 SW626 SW627 PLAY/ STOP REVERSE REC TUNING/ VIDEO CD TAPE TUNING/ MEMORY/ REWIND FAST SET TIME FORWARD REPEAT PLAY AUX TIME DOWN UP R695 680 SW611 DIMMER R698 820 R701 1K R707 1.5K R726 180K

SW612 SW613 SW614 SW615 SW629 X-BASS EQUA- VOLUME VOLUME LIZER DOWN REVERSE UP R700 820 R702 1K R705 1.5K R710 2.2K R713 2.7K R715 3.9K R717 68K R720 100K SW610 OPEN/ CLOSE

R696 680

SW601 SW602 SW603 SW604 SW605 SW606 SW607 SW608 SW609 DIGEST BOOK DISC PBC OSD CLOCK TIMER AUDIO ON/ ON/OFF MARK SKIP SLEEP KARAOKE STAND-BY

7

8

9

10

11

12

Figure 25 SCHEMATIC DIAGRAM (6/12) ­ 25 ­

CD-BK1600V/1800V/190V

A
+B +B

CNS402 P23 12-D CNP11 TO CD VIDEO PWB

CD_GND +5v BI402
+B

3
C409 0.1(ML) 0.1(ML) 0.0027 1/50 4.7/50 1/50 1/50 1/50 C427 1/50

VSS LOUT

CCB INTERFACE

B

R401 330

R409 10K Q401 KTC3199 GR

R415 3.9K

C411 C413 C417

+ -

4

5 LBASS
+ + -

6 7 8 9

LTRE RIN LIN LSEL0 RSEL0

R403 5.6K

R407 2.2K C401 0.001 C402 0.001

C419 C421 C423 C425

+ -

L4

AUX DECK TUN CD

10 L3 11
L2

20

L A_GND

R404 5.6K R408 Q402 2.2K KTC3199 GR R410 10K C403 22/25 R425 22K R417 1.2K

FROM POWER P28 1-G

12 L1

C

21 22 23 24 R +5V
+B

R402 330

CD_GND

D

FM SIGNAL PLAYBACK SIGNAL RECORD SIGNAL CD SIGNAL VIDEO SIGNAL AUDIO SIGNAL
R102 10K R101 10K 9.3V LUG961 9.3V TAPE1 PLAYBACK HEAD R-CH 8.6V Q101 KTA1266 GR Q102 KRC104 M 0V 3.4V 2 3 1

+B

R157 150 (1/4W)

3.4V

1 0V 2

0V

R103 4.7K

C108 100/16

3 Q103 KRC104 M R137 15K R104 1K R116 56 C116 100/10

R134 100 C132 0.0033

R130 8.2K

R122 5.6K C144 0.0022

CNS101

C126 270P

L-CH TAPE2 RECORD/ PLAYBACK/ ERACE HEAD CNS102 ERASE HEAD

TAPE1_L

3

R126 68K

3 2 1

A_GND

2

R118 100K R120 3.9K

C106 Q108 0.001 KTC3199 GR

R128 6.8K

0V C104 180P M_GND ERASE TAPE2_R2 A_GND TAPE2_R1 TAPE2_L1 TAPE2_L2 0V

R110 47K

R106 2.2K 0.7V 0.7V

C112 330P

C128 22/25

0V

0V 0V

24
R L

23

22
-

21
112K + Hich=T1 + 112K -

20

19

18
IC101 AN7345K

17
+

16
56K

C134 47/25

C103 0.001

Q104 2SC1845 F

R105 1K

R114 1K

C114 330P

C130 0.022

R132 1.5K

TAPE1_R

1

C118 0.033 C120 560P C122 47/25

15
Nor/CrO2 ALC

R136 10K

E

C102 0.001

R124 4.7K

R112 4.7K

R-CH

1
R115 1K C113 330P

2

3

4

5

6

7
R127 6.8K

8
C129 22/25

9

10

R119 100K R121 3.9K

C137 0.022

L-CH

4 5 6

4 5 6

BI102

0V

0V C105 180P

R111 4.7K

R133 100

Q109 KTC3199 GR

0V

C119 0.033 C117 100/10 R117 56 R138 15K

R113 47K

0.7V 0V R107 2.2K

0V

Q105 2SC1845 F

G

C143 0.0022

R129 8.2K

H

· NOTES ON SCHEMATIC DIAGRAM can be found on page 15.
1 2 3 4 5 6

Figure 26 SCHEMATIC DIAGRAM (7/12) ­ 26 ­

C131 0.022

R131 1.5K

C121 560P R125 4.7K

C133 0.0033

R109 3.3K

C107 0.001

R123 5.6K

C127 270P

0V

C123 47/25

C139 3.3/50

Q107 2SC1845 F 0.7V

C115 330P

C135 47/25

R135 10K

ALC

F

1 1 2 2 3 3

1 2 3 4 5 6 7

0V

R108 3.3K Q106 2SC1845 F

Hich=CHROME + 56K -

1

RIPPLE

+ -

1 2 3 4 5

1 2 3 4 5

R-CH A_GND L-CH

C404 100/16

IC401 LC75341 AUDIO PROCESSOR

C405 0.022

1 2

DI CE

CLK

24 23 22 21 20 19 18 17
C412 C414 C418 C420 C422 C424 C426
+B

C407 10/50

VDD + VREF ROUT

C408 10/50 C410 0.1(ML) 0.1(ML) 0.0027 1/50 4.7/50 1/50 0.047 1/50 C428 1/50 R4 1.2

+ + -

RBASS RTRE

R4 R3 R2 R1

16 15 14 13

R142 220K

Q110 KTC3199 GR R140 0V 10K 0V 0.7V

R14 10K 0

1

CD-BK1600V/1800V/190V

+B

R421 39K

24 23 22 21 20 19 18 17 16 15 14 13
C412 C414 C418 C420 C422 C424 C426
+B +B

R419 4.7K C408 10/50 C410 0.1(ML) 0.1(ML) 0.0027 1/50 4.7/50 1/50 0.047 1/50 C428 1/50 R418 1.2K SW401 SPAN SELECTOR
+B

C406 22/25 1 R416 3.9K CNPV3 TO CD VIDEO PWB P21 11-C 2

R426 33 CNS404 BI404 1

R420 4.7K

C429 390P C430 390P

L-ch SO401 VIDEO/ AUX IN

R422 39K
D403 DS1SS133

R-ch JK671 VIDEO OUT

D404 DS1SS133

2

CE DI CLK TUN_R TUN_L DO

44 43 42 41 40 39 TO TUNER SECTION P30 1-G

50/9kHz 100/10kHz CNP401
MIC IN KARAOKE LATCH

R424 470K

27

FC701

R423 470K

SPN

CE +B DO DI CLK T_BIAS T_T1/T2 REC/PLAY

REC_L

R142 220K

REC_R

SPA_SIG SMUTE

C150 22/25

VF1 -VP VF2 SP_RLY

Q110 KTC3199 GR R140 V 10K V 0.7V

R143 220K Q111 KTC3199 GR R141 0V 10K 0.7V
+B

R976 1K
+B +B +B

M_10V ­B -15V D_GND +5V A_GND UN_SW 5V

0V

R132 1.5K

C145 0.001

+B

SP_DET M_GND

27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
1

P25 12-D CNP702 TO DISPLAY PWB

R134 100 C132 0.0033

C126 270P

C138 220/10

R136 10K

C136 22/25

­B

C130 0.022

+B KOK OUT (L) KOK IN (L) A_GND

C128 22/25

R139 220 (1/4W)

+B

+B

+B

+B

A_10V

17
+

16
56K

15
Nor/CrO2

14
RIPPLE

13
Vcc

IC101 PLAYBACK AND RECORD/ PLAYBACK AMP.

R144 47K R145 4.7K 0V 3 2 0V 11.6V Q113 KRC104 M 1

KOK OUT (R) KOK IN (R) D_GND DI CLK KARAOKE LATCH MIC IN +B

GND

ALC

8
6.8K C129 22/25 R133 100

9

10

ALC

K

Hich=CHROME + 56K -

0V 11.6V

11

12

C135 47/25

R146 82 (1/2W) R147 47K R148 22K C148 0.047 (ML)

1 2 3 4 5 6 7 8 9 10 11

C134 47/25

Q112 KTA1266 GR 11.7V

CNSK1 FROM KARAOKE PWB P31 12-B

CNP403

C127 270P

C133 0.0033

0V 0V R149 4.7 A_10V VF1 -VP (A_GND) UN_SW_5V
+B

GND (D_GND) SW_5V

C131 0.022

R131 1.5K

C141 0.039 (ML)

L104 330µH

C142 47/25

+B

+B ­B

+B

25

26 27 28 29 30 31 32 33 34 35 TO POWER SECTION P28 1-G

GND

7

8

9

10

SP_DET GND (M_GND) 37 38

R135 10K

VF2 SP_RLY

0V Q114 KTC3203 Y C140 0.0082(PP)

M_10V -15V

11

12

Figure 27 SCHEMATIC DIAGRAM (8/12) ­ 27 ­

CD-BK1600V/1800V/190V
IC901 STK40204 POWER AMP.(2Ch)
+Vcc -Vcc Ch1 Out

A

1

2

3
C903 15P

4

5

6

Ch1 Out

7

8

9

Ch2 Out

10

Ch2 Out

Ch1 -

11

12
C909 100/50

R906 R902 C904 56K 15P 1K

C901 220P

R903 820 R931 1K

R901 56K

R905 1K

C910 100/50

R904 820 C906 47/50 R907 0.1(1W) C907 0.022 R909 1K 4.1V 0V

R908 0.1(1W)

C935 10/50

D901 DS1SS133 4.1V 0V D902 DS1SS133

D903 DS1SS133 Q903 KTC3199 GR C917 47/50

R910 1K

Q901 KTC3199 GR

C

Q904 KTC3199 GR +

+B

+B

D
­B +B C834 0.047(ML) +B Q831 KTC2026 9.9V 20V 9.9V C833 22/25 R833 22K R832 33 C831 220/25 ­B R803 680 (2W) ZD803 DZ130BSB C832 0.022 R801 22K R802 22K C803 2200/ C804 2200/ D803 1N4004S +B2 C807 3300/25 D805 1N4004S

E

+B

+B 20V

2

C813 C812 100/35 100/50

23

+5V

+B

+B

C855 0.047(ML)

D851 DS1SS133

21 22

C853 R851 47/25 10K

GND (A_GND) R +B

C852 0.022

F

20

L

+B

3 1 5.7 2 20

+B

IC851 5V KIA7805AP 20V 3 1 2 IC851

24 25

GND (CD_GND) A_10V +B D852 1N4004S +B

KIA7805P VOLTAGE REGULATOR

C854 47/25

TO MAIN SECTION P26 1-C, P27 10-H

27 28 26 29 30 31 32 33 34 35

-VP VF2 VF1 SP_RLY M_10V -15V ­B GND (D_GND) +5V +B GND A_GND UN_SW_5V +B SP_DET

D853 1N4004S

G

+B

+B ­B +B +B

37 38

GND (M_GND)

H

· NOTES ON SCHEMATIC DIAGRAM can be found on page 15.
1 2 3 4 5 6

Figure 28 SCHEMATIC DIAGRAM (9/12) ­ 28 ­

C851 0.1(ML)

R807 12K ZD802 DZ6.2BSA

IC852 AN78L05 CONSTANT VOLTAGE REGULATOR

IC841 KIA7810AP VOLTAGE REGULATOR

+B

10V

3 C842 0.1(ML)

1

R841 22K

C843 47/25

R915 56K

R911 0V 10K

4.9V

C908 0V 0.022 R912 Q902 10K KTC3199 GR

R914 56K

R934 68K

C936 10/50

B

R933 68K

R913 56K

C905 47/50

R932 1K

R920 22K

R919 100 (1/4W)

C911 10/50

C912 R918 10/50 100 (1/4W)

C841 0.1(ML)

R805 47K

-

Ch2

+

+

FM SIGNA
13 14 15
C902 220P

CD-BK1600V/1800V/190V

CNS971

FM SIGNAL
R975 18 (1/2W) R973 15K D971 DS1SS133 C972 10/50

C971 47/50
Q971 KTC3203 Y

2 1
CNP971

2 1

M
M901 FAN MOTOR

R971 1K R972 68K

+B

+B

RL951

R953 4.7K

R954 4.7K

FW951 +B +B 1 1 2
R1_OUT L1_OUT

R952 330(1/2W)

3 4
CNP951

D951 DS1SS133

5 +B

5

R951 330(1/2W)

JK951 HEADPHONES

2

Q951 KRC107 M 1

HEADPHONES PWB-A3

3

L921 0.29µH +B +B L920 0.29µH

+ +
­ ­

SP_L Ch SP_R Ch SP_L Ch_GND SP_R Ch_GND FRONT SPEAKER SO901 SPEAKER TERMINAL

+ +
­ C930 22/50 C931 22/50 ­

SP_L Ch SP_R Ch SURROUND SPEAKER SP_L Ch_GND SP_R Ch_GND BK1800V/190V ONLY

D801 TS6B04GM

C801 0.1 (ML)

F801 T4.0 A L250V

C803 2200/50 C804 2200/50 D803 1N4004S +B2 D805 1N4004S D802 1N4004S C805 0.1 (ML) C806 0.1 (ML)
C809 100/50

C802 F802 0.1 (ML) T4.0 A L250V

CNP801

5
1 2 F803 T2.0 A L250V
D806 D807 1N4004S C8081N4004S 100/50

5 4 3
2

230-240V 110V 127V 220V

SO801 VOLTAGE SELECTOR

1
2

4 3
2

3 4 5 6 7 CNP802 8

D804 1N4004S

ZD801 ZD300BSB

C813 C812 100/35 100/50

R805 47K

C811 47/50

3 4 5 6 7 8
TF 130 °C PT801 POWER TRANSFORMER

1

1

ZD802 DZ6.2BSA

-33

-28 R806 Q801 D808 10 KTA1274 Y 1N4004S

-28

R804 2.2K

MAIN PWB-A1(2/3)

7

C810 220/50

SOCKET PWB-A4

SO801 AC INPUT SOCKET AC 110/127/ 220/230-240V 50/60Hz

8

9

10

11

12

Figure 29 SCHEMATIC DIAGRAM (10/12) ­ 29 ­

CD-BK1600V/1800V/190V

AM LOOP ANTENNA

A

SO302 FM TERMINAL

2 2

1 1 CNP302 BF301 FM FRONT END B.P.F

MAIN PWB-A1(3/3)
FM SIGNAL AM SIGNAL
C315 0.0047 C314 0.0047

D305 L312

DS1SS133 C308 4.7P C303 10P (CH) FM RF C309 0.001 C304 0.01

1 2 3

D302 DS1SS133

C375 0.001

C301 0.01

C316 0.022

R314 R311 22 100K R313 33K

B

C317 0.001

VD302 KDV147B C310 15P (CH) T301 C311 18P (CH)

C305 4.7P (CH)

1 2 3 4 5 6

C338 0.001 D301 DS1SS133

C302 0.001

AM BAND COVERAGE fL C337 27P T306 AM OSC C335 560P

C323 0.022

C312 0.022 R327 33 R325 47K FM OSC

Q302 KTC3194 Y

R322 680

FM IF T302

C324 8.2P(UJ)

9
C306 0.022 IC301 TA7358AP FM FRONT END

C334 27P (UJ)

C
C318 100P 2 3 CF303 R316 4.7K C326 0.001 1 C313 22P (CH)

C307 10/16 VD303 KDV147B R309 10K FM BAND COVERAGE fL

R323 68K

C330 15P (UJ)

VD301 SVC348S

C332 0.022 C331 0.047

R336 10K

+B
C382 15P (CH) R375 470 R374 1K R373 1K X352 4.5 MHz

+B
C381 R382 12P 150 (CH) R381 10K C393 1/50 R380 1.5K TP301 C394 47/16

C342 0.022 C351 0.022 C352 10/16 C350 0.022 T351 AM IF R351 5.6K R358 3.9K R365 10K C362 C361 3.3/50 0.022

D

1 2 3 4 5 6

X IN

X OUT VSS AOUT

22 21 20 19 18 17

C397 0.022

1 2 3

FM IF IN AM MIX OUT REG

CE DI IC302 LC72131 CL AIN PD DO

R372 1K R378 1K

C392 C380 0.001 10/16 C387 0.022 L351 100µH R377 47K R393 1K

AM OSC OUT AM OSC IN FM AFC AM RF IN

24 23 22 21

C363 0.022 C364 10/16 C365 0.022 C366 0.001 R350 2.7K

7 FM/AM 8 IF CONT

VDD 16 FM IN 15 AM IN 14 SD 13 IF IN 12

R379 2.2K C385 0.01

2 CF352 C353 0.022 C354 CF351 0.022

1 3

R352 1K

E

9 10 11

FM/AM MO/ST ST IND

4 5 6 7

VSM 20 AM IF IN AM LOW 19 CUT FM/AM 18 GND OUT SD C367 1/50

IC302 R376 PLL(TUNER) C386 1K 330P R386 22K R360 4.7K R395 47K

STEREO FM DET MPX VCO X351 456KHz

C399 0.022 C398 100/10 C356 0.001

R353 270

8 9

17 16 15 14 13

VCC IF OUT PHASE MPX IN

C368 1/50 R356 1K C369 27P(UJ)

TP302 R357 470K

C357 2.2/50

F
R359 1.8K R384 5.6K Q360 KTA1266GR R385 5.6K C391 47/16 R383 5.6K
GND

10 11

R387 5.6K

R388 3.9K

C355 22P

R-CH OUT R355 3.3K C358 1/50

C374 0.015 C373 0.015 C371 1/50 R361 R364 6.8K 10K R363 10K

12

PHASE (FM/AM)

L-CH OUT MO/ST

+B +B
A GND

25

A_10V

R391 270

R392 270

G
TO MAIN SECTION P27 12-C P27 10-H

+B
C396 100/10

21 41 40 43 44 39 42 32

TUN_R TUN_L DI CE DO CLK GND D GND

H

· NOTES ON SCHEMATIC DIAGRAM can be found on page 15.
1 2 3 4 5 6

Figure 30 SCHEMATIC DIAGRAM (11/12) ­ 30 ­

ZD351 DZ5.1BSB

L352 100µH C395 0.022

C370 1/50

IC303 LA1832S FM IF DET/ FM MPX/AM IF

C372 1/50 R362 6.8K

AM TRACKING fL

R302 10

7 8

T303

CD-BK1600V/1800V/190V
KARAOKE PWB-G
PINK1 DK1 1SS133 +B RK3 56K CK1 0.01 RK4 22K RK5 1K RK6 5.6K
MIC2 VOLUME

ICK1 M65856SP MIC AMP.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
MICSW MCLKCONT VALC MIC1IN ALC1 MIC1NFIN MIC1OUT MIC1VOLIN MIC2IN ALC2 MIC2NFIN MIC2OUT MIC2VOLIN MICOUT LPF1IN1 LPF2IN2 LPF1OUT ADINTOUT ADINTIN ADCONT REF DATA CLOCK LATCH PS2 PS1 VCFIL LOUT ROUT SOURCEOUT KEYCONIN RIN LIN VOLIN LPF2OUT LPF2IN2 LPF2IN1 DAINTOUT DAINTIN DACONT VCC GND

+B CK35 47P RK11 1K RK10 1K CK34 47P

MIC SIGNAL

RK2 56K

RK1 10K

CHASIS GND JK2 MIC2

DK2 1SS133

CK2 CK3 VRK2 20K(B) CK4 CK5 CK6 CK7 CK8 CK9 CK10 CK11 MIC1 CK12 VOLUME CK13 0.0047

0.47 4.7/50 2.2/50 0.1 0.1 0.47 4.7/50 2.2/50 0.1 0.1 2.2/50

RK7 1K VRK1 20K(B)
RK8 5.6K

JK1 MIC1

CK14 0.001 CK15 0.068(ML)

CK16 0.22 CK17 220/10

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

RK9

1K CK33 47P 0.15 2.2/50 2.2/50 RK44 470K RK41 1.5K RK42 1.5K
RK48 680

CK31 CK29 CK30

CK26 CK25 CK24 CK23 CK22 CK21 0.068(ML) CK20

2.2/50 2.2/50 2.2/50 0.001 0.0047

RK46 1K QK2 KTC199 GR

RK43 470K RK45 1K QK3 KTC3199 GR

CK73 2.2/50

RK37 1K
RK36 1K

RK39 1K

+B

CK74 2.2/25

RK40 1K

+B
CK18 100/16 CK41 47/25 CK19 0.022

CK42 0.022
CK43 47/25

RK13 1.2K RK12 100

RK15 100

RK38 100 CK72 100/16

Figure 31 SCHEMATIC DIAGRAM (12/12)

JK1 MIC 1

JK2 MIC 2

VRK1 MIC 1 VOLUME

VRK2 MIC 2 VOLUME

CK11

CK10

CK13

CK6

RK5

RK6

RK7

CK9

CK2

CK7

PINK1

RK8

CK3

CK4

CK8

CK12

CK14

CK15

CK16

CK17

RK4

RK1

CK18 CK22

RK3

CK1 RK2

5

10

15

20

CK33

CK35

ICK1
RK11
40 42 35 30 25 CK23 22

CK34

RK10

RK9

CK29 CK32

CK31

CK26

CK41

CK30

E C B

CK42

QK1

RK14

RK15

E C B

RK48

RK12 ZDK1 RK13

CK44

CK43 RK36 RK40

RK39

RK44 RK42 RK46

QK2

CK74

11 RK41

BIK1

1

CK73

CK25

RK37

RK43 RK38 CK72

RK47 RK45

E C B QK3

11 10 9 8 7 6 5 4 3 2 1

CNSK1

KARAOKE PWB-G

CNP403 TO MAIN PWB P32 5-A

7

8

9

CK24

10

CK19 CK21

CK20

1

21

CK5

11

12

Figure 31 WIRING SIDE OF P.W.BOARD (1/8) ­ 31 ­

CNSK1

+B
RK47 680

BIK1

0.22

+B

QK1 KTC3203 Y
ZDK1 MTZJ5.6B

+B

RK14 100

1 2 3 4 5 6 7 8 9 10 11

OUT(L) IN(L) GND(A) +10V(A) OUT(R) IN(R) GND(D) DATA CLOCK LATCH MIC IN

1 2 3 4 5 6 7 8 9 10 11

TO MAIN PWB P27 12-F

CNP601

CK44 47/25

CD-BK1600V/1800V/190V
P31 8 - H TO KARAOKE PWB
CNS404 WH 1 BK 2

A

TO VIDEO CD PWB P36 1-A CNPV3

CNSK1

X352 C302 C301 C382 C381 C397 C394

R374

R372

R378 R359 R386 R388 C396 C426 C395 R387 R360 R384 R376 C391 R392 R391 R

R373

B

IC302
R379 C392 C387
22 21 20 1918 1716 15 14 1312

R383

C326

Q302

SO302 FM TERMINAL

R381

R385

FM 75 OHMS GND
C306

C398

L351 R377 C380 C385 R393 C318 R380 R375 R382 C393 T301 CF352 3 2 1

C386

1 2 3 4 5 6 7 8 9 1011

R395

Q360 B C E T351

ZD351 C404 L352 C405 C370 C356 C355 R363 R364 R362 R4 R425 C401 Q401 E C R401 R403 C901
1 2 3 4

IC301

R314

R311

C313

C357

JK951 HEADPHONES

AM LOOP ANTENNA
CNP302 1 2

C310 T302 C312

VD303

C

HEADPHONES PWB-A3

R322

R325

C304 C305

C315

D305

1 2

BF301

R351

D301 D302 SW401 SPAN SELECTOR 50/9 R952 R951 CNP951 5 4 3 2 1 SO401 R-CH VIDEO/ AUX IN L-CH FW951 D403 JK671 VIDEO IN 100/10 C375

9 8 7 6 5 4 3 2 1

B C E R327 C324 C311

R302

C351 C352

C350 CF351 R353

R309

L312 C308

CF303

C354 R352 C353

1 2 3

C303 R316 C316 C314 T303 C317

C309 1 2 3 VD302 R313 C362 R365

1 2 3 4 5 6 7 8 9 1011 12

X351

IC303

C399 C366 R361 C369

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

D

C342 C361 R358

C323

C367

C371 R356 C373

R336 C334 R323

C330 VD301 C331 C338 R426 R422

R350 R357

C368

C332

C364 C363 C365

C335

T306

C372 R976

R419

E

BI404

Q971

WH BK 2

C971

R971

C430 R420 1 R421

C437

R975 B C E

D404

FW951

C429

LG902

1

R972 CNP971 2 1 R954 C972 D971 R973

C903

R901

C358 C374

R355

D951

R919 C910 C911

R-ch L-ch

5

R905

R-ch SO901 SPEAKER TERMINAL L-ch

R953

R-ch L-ch R-ch

1800V/190V ONLY R801 R802

C804

L-ch

CNS971 BR 2 1 RD

H

1

2

­

G

M901 FAN MOTOR

­

SURROUND SPEAKER

­

F

FRONT SPEAKER

RL951

1 2 3

R907

Q951

R909 R908

L920 L921 R913

C907 R911 B C E Q901 D D903

R914 E C B Q904 B C E Q903 R915

C917

C931 C930 C803

R920

+ + + +
3

­

D

4

5

6

Figure 32 WIRING SIDE OF P.W.BOARD (2/8) ­ 32 ­

CD-BK1600V/1800V/190V
TO DISPLAY PWB P35 9-H 1 CNS402 RD 1 WH 2 BK 3 WH 4 BK 5 TO VIDEO CD PWB P36 3-A CNP11

CNP702
27 FC701 27

1

C407

C417

C421

R415 C409

C413