Sharp CDBP-1450-V Service manual

CD-BP1450V

SERVICE MANUAL

No. S7058CDBP145V

VIDEO CD MINI SYSTEM

MODEL CD-BP1450V

CD-BP1450V Video CD Mini System consisting of CD-BP1450V (main unit), CP-BK1450 (front speakers) and GBOXS0043AWM1 (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.

This Service Manual is for the CD-BP1450V, which is a minor-

NTSC/PAL

modification model of the CD-BP1300V. This manual, therefore, describes only the changed points from the service manual. Please

refer to the CD-BP1300V service manual (No.S7057CDBP130V) together with this manual.

CD-BP1300V

Page

REMOVING AND REINSTALLING THE MAIN PARTS.. 11

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

TROUBLESHOOTING (CD SECTION) .......................... 38

FUNCTION TABLE OF IC .............................................. 42

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

CONTENTS

Page

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

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

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

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

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

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

BLOCK DIAGRAM ........................................................................................................................................................... 11

SCHEMATIC DIAGRAM .................................................................................................................................................. 14

WIRING SIDE OF P.W.BOARD....................................................................................................................................... 25

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 32

TYPES OF TRANSISTOR AND LED................................................................................................................................32

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 33

VOLTAGE ........................................................................................................................................................................ 34

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-BP1450V

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

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.

Laser Output: max. 0.6 mW

VOLTAGE SELECTION

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

QACCE0007AW00

QACCJ0006AW00

QACCA0004AW00

QPLGA0003AWZZ QPLGA0004AWZZ

Figure 2 AC POWER SUPPLY CORD AND PLUG ADAPTOR

– 2 –

General

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

CD-BP1450V

SPECIFICATIONS

Tuner section

Power source:

Power consumption:

Dimensions:

Weight:

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

47 W

Width; 270 mm (10-5/8") Height; 300 mm (11-13/16") Depth; 373 mm (14-11/16")

5.2 kg (11.4 lbs.)

Amplifier section

Output power:

Output terminals:

MPO; 64 W (32 W + 32 W) (10 % T.H.D.)

RMS; 40 W (20 W + 20 W) (10 % T.H.D.)

RMS; 28 W (14 W + 14 W) (0.9 % T.H.D.)

Front speakers; 8 ohms Surround speakers; 16 ohms Headphones; 16 - 50 ohms (rec-

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

Compact disc player section

Frequency range:

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

Cassette deck section

Frequency response:

Signal/noise r a tio:

Wow and flutter:

CP-BK1450

Type:

Maximum input power:

Rated input power: Impedance: Dimensions:

Weight:

50 - 14,000 Hz (Normal tape)

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

0.3 % (WRMS)

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

30 W

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

Height; 300 mm (11-13/16") Depth; 217 mm (8-9/16")

2.7 kg (5.9 lbs.)/each

Type:

Signal readout:

D/A converter: Frequency

response: Dynamic range:

Video CD section

Video output format:

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)

PAL/PAL 60/NTSC

GBOXS0043AWM1

Type: Maximum input

power: Rated input power: Impedance: Dimensions:

Weight:

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

8 cm (3-1/8") full-range speaker 10 W

5 W 16 ohms Width; 150 mm (6")

Height; 150 mm (6") Depth; 78 mm (3")

0.4 kg (0.9 lbs.)/each

– 3 –

CD-BP1450V

Front panel

1.(VCD/CD) Disc Number Indicators

2.Timer Indicator

3.Record Indicator

4.Sleep Indicator

5.Extra Bass Indicator

6.(VCD/CD/TUNER) Memory Indicator

7.FM Stereo Mode Indicator

8.FM Stereo Indicator

9.(VCD/CD) Repeat Indicator

10.(VCD/CD/TAPE) Play Indicator

11.(VCD/CD) Pause Indicator

NAMES OF PARTS

123 4 5 6 8

7

12.(VCD/CD) Disc Tray

13.Timer Set Indicator

14.On/Stand-by Button

15.Timer/Sleep Button

16.Clock Button

17.Function Selector Buttons

18.Headphone Socket

19.Equalizer Mode Selector/Extra Bass/Demo Mode Button

20.Volume Up/Down Buttons

21.Tuning and Time Up/Down Buttons

22.(TAPE 1) Cassette Co mp artmen t

23.(TAPE 2) Cassette Co mp artmen t

24.(VCD/CD) Disc Skip Button

25.(VCD/CD) Audio Mode Button

26.(VCD) Playback Control Button

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

28.(VCD) Digest Button

29.(VCD) Bookmark Button

30.(VCD/CD) Open/Close Button

31.Memory/Set Bu tto n

32.(VCD) Skip/Previous Button (CD) Track Down/Review Button (TUNER) Preset Down Button (TAPE 2) Rewind Button

33.(TAPE 2) Reco rd Pause But ton

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

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

36.(VCD/CD) Play/R epeat Button (TAPE) Play Button

12 13

15 16 17

18

31

24

25

22

26

27

23

28

29

11109

1914 20

21

30

33

– 4 –

32

35

34

36

CD-BP1450V

Rear panel

1

2 3

1.Video Output Socket

2.AC Voltage Selector

3.AC Power Input Socket

4.Surround Speaker Terminals

5.Front Speaker Terminals

6.Span Selector Switch

7.FM Aerial Earth Terminal

8.FM 75 Ohms Aerial Terminal

9.AM Loop Aerial Input Socket

4 5

6 7

8 9

Remote control

2 3

4 5

89

12 13 14 15

16

1

10

11

6 7

17 18 19

20

21

22

23 24

CP-BK1450

Front speaker

1.Tweeter

2.Woofer

3.Bass Reflex Duct

4.Speaker Wire

GBOXS0043AWM1

Surround speaker

1.Full-Range Speaker

2.Speaker Wire

1 2 3

4

1 2

1.Remote Control Transmitter LED

2.(VCD/CD) Audio Mode Button

3.(VCD) VCD Auto/On Button

4.(VCD) Playback Contro l Auto/Off Bu tto n

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

6.On/Stand-by Button

7.(VCD/CD) Direct Search Button

8.(VCD) Digest/Time Search Button

9.(VCD/CD) Clear Button

10.(VCD/CD) Memory Button

11.(VCD/CD) Disc Skip Button

12.(VCD) Skip/Previous Button (CD) Track Down/Review Button (TUNER) Preset Down Button (TAPE 2) Rewind Button

13.(VCD) Bookmark Button

14.(VCD) PAL/NTSC Select Button

15.(TAPE 2) Record Pause But to n

16.Function Selector Buttons

17.(VCD/CD) Random Button

18.(VCD/CD) Pause Button

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

20.(VCD) Play/Repeat/Select/Resume Button (CD) Play/Repeat Button (TAPE) Play Button

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

22.Extra Bass Button

23.Equalizer Mode Selector Button

24.Volume Up/Down Buttons

– 5 –

CD-BP1450V

g

(Continued)

OPERATION MANUAL

Connecting the AC power lead

Check the setting of the AC voltage selector located on the rear panel before plugging the unit into an AC socket. If necessary, 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 (110 V, 127 V, 220 V or 230 V -240 V AC).

1

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 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.

2

To an AC socket

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. Never use a power lead other than the one supplied. Use of a power lead other than the one supplied may cause an electric shock or fire.

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 ).

Note for users in Australia and New Zealand:

An AC plug adaptor is not supplied if the lead has an Australian Standard plu

.

To change the tuning zone:

1

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 ), an d " 100/10 " fo r 10 kHz AM interval (100 kHz FM interval).

3

Whilst pressing down the / button and the EQUALIZER/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.

– 6 –

CD-BP1450V

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 advance

continuously.

When the 12-hour display is selected, "AM" will change

automatically to "PM".

7

Press the MEMORY/SET button.

8

Press the TUNING/TIME ( or ) button to adjust

the minutes.

Press the TUNING/TIME ( or ) button once to

advance the time by 1 minute. Hold it down to change the

time in 5-minute intervals.

The hour setting will not advance even if minutes

advance from "59" to "00".

9

Press the MEMORY/SET button.

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

not displayed.) And then the clock display will disappear

after a few seconds.

To see the time display:

Press the CLOCK button.

The time display will appear for about 5 seconds.

Note:

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

CLOCK button when the AC power supply is restored

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

disconnected. If this happens, follow the procedure

below to change the clock time.

To change the clock time:

1 Press the CLOCK button.

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

3 Perform steps 6 - 9 above.

To change the time display mode:

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

PUTER".

2 Perform steps 1 - 9 above.

(Main unit operation)

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

(0:00 - 23:59)

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

(AM 0:00 - PM 11:59)

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

(AM 12:00 - PM 11:59)

ON/

STAND-BY

CLOCK

MEMORY/SET

TUNING/TIME

( )

AM 0:000:00 AM 12:00

Remote control

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 con-

trol 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 direc-

tion of the unit.

Keep the remote control away from moisture, excessive

heat, shock, and vibrations.

15

0.2 m - 6 m

(8" - 20')

RESETTING THE MICROCOMPUTER

Reset the microcomputer under the following condi-

tions:

To erase all of the stored memory contents (clock and

timer settings, and tuner and CD presets).

If the display is not correct.

If the operation is not correct.

1

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

by mode.2Whilst pressing down the / button and the

EQUALIZER/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.

EQUALIZER

X-BASS/

DEMO

ON/

STAND-BY

– 7 –

CD-BP1450V

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-BP1450V

STEP REMOVAL

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

2 Side Panel 1. Screw ..................... (B1) x2 8-1

(Left/right) 2. Screw ..................... (B2) x2

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) x8 8-2

5

Main/Headphones 1. Screw ........................

PWB 2. Socket .................... (E2) x4

6 Front Panel 1. Screw ..................... (F1) x3 9-2

7 Display PWB 1. Screw .....................

8 Tape Mechanism 1. Open the cassette holder. 9-3

9 Turntable 1. Hook....................... (J1) x2 9-4

10 Disc Tray 1.

11 CD Servo PWB 1. Screw ..................... (L1) x1 9-6

(Note 2) 2. Hook....................... (L2) x3

12 CD Mechanism 1. Hook....................... (M1) x2 10-1

13

Loading Motor PWB

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

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

2. Flat Cable .............. (G2) x1

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

2. Cover ..................... (J2) x1

arrow direction.

2.

3.

3. Socket .................... (L3) x4

2. Hook....................... (M2) x3

1. Hook....................... (N1) x5 10-1

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 anti clockwise

until the cam gear rib engages with the clamp lever.

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

Note 2:

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

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

PROCEDURE

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

(E1) x8 9-2

(G1) x9

Turn fully the lock lever in the

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. ..............

(K1) x6

FIGURE

9-3

8-3

9-1

9-5

(Fig. 9-1)

CD-BP1450V

Top Cabinet

Front Panel

(A1)x2 ø3x12mm

Side Panel (Left)

(B2)x1 ø3x10mm

CD Tray Cover

(C2) x3

1

2

CD Player Unit

(C3)x1

Front Panel

Main PWB

Side Panel (Right)

(B2)x1 ø3x10mm

(C3) x1

Pull

Rear Panel

(C1)x1 ø3x12mm

(A1)x2 ø3x12mm

(B1)x2 ø3x12mm

Video CD PWB

Rear Panel

(C4)x3

(D1)x8 ø3x8mm

Figure 8-1

Figure 8-2

Lock Lever

CD Player Unit (Bottom View)

Figure 8-3

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

Clamp Lever

CD Player Unit (Top View)

Cam Gear Rib

(J1) x2

CD-BP1450V

(J2) x1

Turntable

Slide Chassis

Loading Chassis

(E2)x1

(E3)x1

(E2)x1

(E1)x7 ø3x10mm

Main PWB

(F1)x3 ø3x8mm

Figure 9-2

(G2)x1

Display PWB

(E2)x2

Front Panel

(E1)x1 ø3x10mm

Front Panel

Headphones PWB

(E4)x1

1

(L3) x2

(L1)x1 ø3x8mm

Figure 9-4

(K1) x3

Loading Chassis

Figure 9-5

CD Servo

PWB

2

Slide Chassis

(K1) x3

Slide Chassis

(G1)x10 ø3x10mm

Tape Mechanism

(H1)x5 ø3x10mm

Figure 9-3

Open

Cassette Cover

(L2) x3

(L3) x2

Figure 9-6

– 9 –

CD-BP1450V

CD Mechanism

(M1) x1

(M2) x3

(M1) x1

Figure 10-1

Loading Motor PWB

(N1) x5

CP-BK1450

STEP REMOVAL

1 Woofer 1. Front Panel ............ (A1) x1 10-2

2. Screw ..................... (A2) x4

2 Tweeter 1. Screw ..................... (B1) x2 10-3

Screwdriver

Driver should be pried away from speaker box.

PROCEDURE

(A1x1)

FIGURE

Tweeter

(B1)x2

ø3x10mm

(A2)x4

ø4x12mm

Woofer

Figure 10-2

Figure 10-3

– 10 –

2127 3545

ICV3

SDM4260C

DRAM

20

6

VDD

1

DQ15

39

DQ12

36 34

DQ11

~~

31

DQ8

A8

26

A4

22

A3

19

~

16

A0

RAS

14

WE

13 10

DQ7 DQ4

DQ3

~~

DQ0

~~ ~ ~

~

7 5

~

2

73 70

68 65

62 58

56 54

53 52 49 48

45 42

38

MD8

~

MD11 MD12

MD15 MD0

MD4 MD5

~~~

MD7 MCAS

MWE MRAS MA0

MA3 MA4

~

MA8

~ ~

~~

86

XV2

27MHz

14

13

10

~

X1

X2

HD0

HD3

ICV2

D61012GC

MPEG DECODER

AUDO

AUBCK

AULRCK

VOUT1

CDC2PO

35 32 3395979899

~~

257

18

HD7

HD4

92 84 83 76 75 63 51 44 36 25

VDD,CKSEL,HSELX,

HSELA,AVDD

23 17

~~

15

CDLRCK

CDBCK

CDI

1

+B3

10

24 35

57

HD0

~

64

HD7

ICV1

MPEG CONTROLLER

IX0352AW

PWR_MPEG

15

XV1

4.19MHz

40

X2

CD-BP1450V

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

GND

CLAMP SW

CD RES

CLK

DI

DO

CE

TO DISPLAY SECTION

DRF

WRQ

CDINT

+B3(+5V)

DGND

L-CH

AGND

(TO IC601)

TO MAIN SECTION

R-CH

JK902

VIDO OUT

BI4

+

CNP12

10

9 8 7

6

5 4 3 2 1

CNP11

5 4 3 2 1

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

+5V

22

FE-

21 20

FE TE-

19 18

TE

LA9235M

17

HFL

SERVO AMP.

30 23 11 9

Q1

CONSTANT

+3.3V

VOLTAGE

VCC2

24 23 28

LASER

DRIVER

IC1

VCC3

27 26 16 15

7 6 5 4

+3.3V

Q3

LDD

TIN2 TIN1

FIN2 FIN1

SW4

PICKUP IN

M

M1

SPINDLE

MOTOR

M2

SLED

MOTOR

TRACKING COIL

FOCUS COIL

8 7

PD

4 3 2 1

+5V

PICKUP UNIT

HFL

VDD

51

QV2

+B5

23

19

TD0

TE

16 15

FE

14

7

3 50 49

44

+3.3V

36 18 5

+5V

73

XIN

VDD5V

CNP4

6 5 4 3 2 1

NJM2267M

6

OPERATION

2

ICV4

VIDEO

AMP.

7

+B3

1

~

3359

40 30

CONT2 CONT3

31 32

CONT4

Q2

RCHO

48 47

RVSS

46

LVSS

45

LCHO

53 76

CONT7

75

CONT6

65 66

5735545556

RFEV

LC78636E

SERVO/SIGNAL

CONTROL

CECLDIDOINT

67

68

69

IC2

WRQ

70 71 72

CONT5

RES

SLD0

SPD0

ADAVDD

DEF

XOUT

52

XL1

16.9344MHz

242526

FD0

RFEV

XVDD

RVDD

LVDD

VVDD

CNPV3

CNS4

6

6 5

5

4

3

3 2

2 1

1

Figure 11 BLOCK DIAGRAM (1/3)

– 11 –

CD-BP1450V

FM ANTENNA

TERMINAL

SO302

AM LOOP ANTENNA

1 2

1

CNP302

1 2

B.P.F

BF301

3

T303

1

FM FRONT END

3

FM

L312

RF

AM

TRACKING

IC301

TA7358AP

4

5

T306

8

7

FM

OSC

T301

Q302

AM BAND COVERAGE

6 9

FM +B

T302

1

FM OSC

VT

SWITCHING

Q360

CF303

20

4.5MHz

1

PLL(TUNER)

FM

3

23

AM OSC IN

X352

IC302

LC72131

22

7

1

T351

21

AM MIX

IC303

LA1832S

FM IFDET/

FM MPX. /AM IF

24

21

AM RF IN

AM OSC OUT

15

16

FM/AM

9

3

CF352

4

AM IF

7

STEREO

11

MO/ST

10

GND

FM/AM

CE

3

5

OUT

18

FM+B

DI

4

21

9

CF351

8

FM

DET

16

CLK

5

VDD

+B2

X351

13

1 7

MO/ST

VCO

L

14

R

15

FM/AMMPX IN

12

DO

6

17

PLAYBACK

HEAD

TAPE 1

REC

PLAYBACK

HEAD

TAPE 2

L-CH

R-CH

L-CH R-CH

FROM CD SECTION

CNP11

REC

P.B.

AC BIAS

SWITCHING

Q104~

Q107

CNS601

1

2 3 4 5

REDUCE

SWITCHING

Q108 Q109

R

L

IC101

AN7345K

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

REF

16 14

12

REC

NOR/

R REC

15

SWITCHING

Q103

P.B

13

4

21

+B2

L

10

TAPE

R

15

AUDIO PROCESSOR

L

11

TUNER

R

14

L

12

CD

R

13

7

8

+B2

L

PB

R

IC601

LC75341

18

17

+B2

23

3

CLK

MUTING

Q110 Q111

DI

1

CE

2

24 21

R L

4

SYSTEM

MUTE

Q601 Q602

REC/PLAY

5

20

H/N

RECRL

7

18

L NF

8

R NF

17

ALC

10

T1/T2 HIGH

19

ERASE

HEAD

BIAS OSC

Q114

L104

Q101

SWITCHING

Q102

Q112

SWITCHING

BIAS

Q113

Figure 12 BLOCK DIAGRAM (2/3)

– 12 –

BAIS

+B2

SW601

SPAN SELETOR

CD-BP1450V

R. PLAY F. PLAY

Q702 Q703

SYS. STOP

CEDICL

212322

T2 PLAY T1 PLAY

SOLENOID

40

AVDD

DO

24

LED722

39 38 37 36 35 34 33

~

31

+B4

MOTOR DRIVER

Q706

Q705

Q704

1

RX701

TAPE MOTOR

M

3

+B5

2

KEY SW701-SW721 SW723-SW725

FL701

FL DISPLAY

~~

11

30

21

10

4

60

59575655545352

71

333231

5051

49484746 44434241

+B5

45

VDD

78

IC701

IX0338AW

SYSTEM

MICROCOMPUTER

RESET

~

11

10

12139

1516

VDD

17

20

~

Q701

80

~~

99

100

VDD

41

65

7

SYSTEM

MUTE

Q601 Q602

REC/PLAY

+B2

+B3

SP. DET.

A10V

+5VCD

Q901 Q902 Q903 Q904

IC901

R

STK402020

15

POWER AMP.

L

1

+Vcc

KIA7810AP

VOLTAGE

REGULATOR

IC801

IC802

KIA7805P

VOLTAGE

REGULATOR

+B5

XL701

4.1943MHz

Q707

12

R-OUT

10

L-OUT

9

13

-B1

D814

D810-D813

7

F803

T3.15A L 250V

F802

T3.15A L 250V

F801

T2A L 250V

–Vcc

8

+B1

+B5

IC704

PT801

1

+B5

2

3

KIA7042AP

RESET

POWER TRANSFORMER

SW801

VOLTAGE SELECTOR

230-240V 220V

127V

110V

TO CD

SECTION

JK901

HEADPHONES

SO901

SPEAKER TERMINAL

FRONT SPEAKER

SURROUND SPEAKER

SO801 AC INPUT SOCKET

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

BAIS

+B4

+B5

+B6

M_10V

UN SW 5V

SW 5V

Q805

IC803

AN78L05

VOLTAGE

REGULATOR

Figure 13 BLOCK DIAGRAM (3/3)

– 13 –

T.F.

CD-BP1450V

C

7

V

2

A

DV5

KDS193

QV2

B

3.3V +5V

C2PO LRCK BCLK DATAD MBUSY AV_GND D_GND

MDI MDO MCLK

+B

10

8

18

4

C

3

2 16 11

TO CD SECTION

12

P17 12-C, P17 12-E, P17 12-F

14 13 15

D

VPP

1

VDD

2

RESET

3

SO

4

SI

5

TEST POINT

SCK

E

6

GND

7

RES

19

SBUSY

17

+B

KTA1298 Y

RV2

RV15

1K

CV1

47/6.3

KDS193

RV93 10K

RV94 10K

DV4

CV2

0.22

2

RV86

4.7K

RV1 10K

+B

L64

0.82µH

F

+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+

IX0352AW

XT2

XT1ICX2

39

38

1K

RV20

CV5

9

8

VSS0

VDD0

VOCAL CANCEL

ICV1

41

40

XV1

4.19MHz

0.22

7

K_C_DATA

X1

VSS1

43

42

6

CD-SOL

INT

44

5

KEY CONT.

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

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

QV4

KTA1298 Y

RV84

4.7K

RV42 3.9K

RV43 3.9K

RV41 3.9K

RV44 3.9K

+B

RV85

10K

RV48 3.9K

RV47 3.9K

RV46 3.9K

RV45 3.9K

+B

RV50 3.9K

RV49 3.9K

XV2

27MHz

+B

C

0.

C

27P(

XV2

C

27P

+B

CV9

0.22

4

AUCLK

1

TO CD SECTION

AUBCK

6

AULRCK

P17 12-C, P17 12-E, P17 12-F

7

AUDO

5

AUEMP

9

G

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 32.

1

23456

Figure 14 SCHEMATIC DIAGRAM (1/11)

– 14 –

VIDEO SIGNAL

CD-BP1450V

CD VIDEO PWB-B(1/2)

+B

RV50 3.9K

RV49 3.9K

+B

XV2

27MHz

+B

27P(CH)

XV2

27P(CH)

CV9

0.22

CV11

0.22

CV6

CV7

CV10 47/6.3

NJM2267M

OPERATION AMP.

100

99

98

1

VDD HD7

2

HD6

3

HD5

4

HD4

5

GND

6

HD3

7

HD2

8

HD1

9

HD0

10

GND

11

GND

12

X1

13

X2

14

VDD

15

CKSEL

16

VDD

17

GND

18

HCS

19 20

HRD HWR

21

HA

22

HSELX

23

HSELA

24

VDD

25

27

28

26

+B

RV95

6.8K

ICV4

VIDEO

93

97

96

94

95

GND

CDBCK

CDLRCK

CDC2PO

CDEMPH

CDI

99

GND

100

MPEG DECODER

RESET

27

GND

26

AUBCK

AUCLK

HDAK

GND

INT

29

30

32

33

31

RV64

47

4

3 2

1

CV17 0.01 CV18 1000/6.3

CV15

4.7/25

0.1

CV13

89

88

91

92

90

VDD

CBP3

AGND

VOUT3

ICV2

D61012GC

AUDO

AUEMPH

AULRCK

VDD

GND

34

36

35

38

37

0.22

CV12

0.1

CV14

87

VOUT2

MA8

78

MA1

48

77

VCLK

MA0

49

76

VDD GND MD8

MD9 MD10 MD11

GND MD12 MD13 MD14 MD15

GND

VDD

MD0

MD1

MD2

MD3

MD4

GND MD5

MD6

MD7

MCAS

MWE

VDD

50

RV62

CV19

75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51

150

RV63

150

+B

0.22

CV21

0.22

CV20

0.22

+B

CV22

+B

47/6.3

VIDEO OUT PWB-A4

JK902

CNS902

VDD DQ0 DQ1 DQ2 DQ3 VDD DQ4 DQ5 DQ6 DQ7

WE RAS

A0 A1 A2

A3 VDD

VIDEO OUT

D919

DS1SS133

D918

DS1SS133

VSS DQ15 DQ14 DQ13

DQ12

VSS DQ11 DQ10

DQ9 DQ8

ICV3

DRAM

LCAS

UCAS

SDM4260C

OE

A8 A7 A6 A5 A4

VSS

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

CHASSIS

GND

1

2

CNPV3

+B

CV24

0.22

1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17

L63

0.82 CV23

47/6.3

18 19 20

CV25

0.22

CV39

1000/6.3

5 6

CV40

22/6.3

7

CV41

4.7/25

8

RV96

33K

RV61 100K

RV60

100

0.1

CV16

86

83

84

80

81

AVDD

MA4

79

82

VDD

HSYNC

NSYNC

CSYNC

GND

76

VCLK

77

MRAS

49

GND

50

MA2

MA3

VDD

GND

43

45

47

44

46

+B

85

CBP2

CBP1

VOUT1

MA7

MA5

MA6

40

42

41

39

7

8 9 10 11 12

Figure 15 SCHEMATIC DIAGRAM (2/11)

– 15 –