Sharp CDK-1-W, CPC-1-W Service manual

CD-K1W,CP-C1W

SHARP

SERVICE

illJDO~~

DIGITAL AUDIO

• SRS technology Licensed trom SRS Labs. SRS technology

holds

the

following

4,748,669 and U.S. Patent No. 4,841,572.

•

SRS,

the SRS are registered trademarks of SRS Labs, Inc. in the United States.

LogoCe)

DDIOOLBYB

• Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.

• ''DOLBY'' and the double-D symboi of Dolby Laboratories Licensing Corporation.

and the

NRI

patents:

SOUND

U.S.

RETRIEVAL

DO

are trademarks

Patent

SYS1EM

No.

MANUAL

No. S1802CDK1WIII

CD-K1W CP-C1W

• In the interests of user-safety the set should be restored to its original

condition

The machine CD-K1W/CP-C1W isa modification of CD-C1WI CP-C1W by providing the Karaoke function. Its performance and operation are identicalwith those of CD-1W/CP-C1W. For details refex fo the service manual (No. SY792CDC1WIII) for CD-C1W/CP-C1W.

CD-C1W/CP-C1W

OPERATiON MANUAL 5 REMOVING AND ADJUSTMENT 12 TROUBLESHOOTING 43 FUNCTION TABLE OF iC 46

andonly

parts

identical

REINSTAlliNG

tothose

specified

THE MAIN PARTS 11

should

be used.

Page

CONTENTS

SAFETY PRECAUTION FOR SERVICE MANUAL 2 VOLTAGE SELECTION 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR 2 SPECIFICATIONS NAMES OF PARTS 4 DISASSEMBLY 8 BLOCK DIAGRAM 9 SCHEMATIC DIAGRAMIWIRING SIDE OF P.W.BOARD 12 TYPES OF TRANSISTOR AND LED 34 NOTES ON SCHEMATiC DIAGRAM 36 WAVEFORMS OF CD CIRCUIT 37 FL SEGMENT 38 PARTS GUIDE/EXPLODED VIEW

SHARP CORPORATION

(CO-K1

W/CP-C1 W)

This

foraftersales The

document

contents

hasl:5eenpul5liShea1o

service

only.

are

SUbject

to change

Page

beusea

without

3

notice.

C.o-1(1

W,CP-C1W

SAF:ETYPRECAUTION FOR SERVICE

WARNINGS

THE

AEL

(ACCESSIBLE EMISSION LEVEL) COMPONENT IMPORTANT AGAINST 1-WHEN

PICK·UP LOOK

2-THE

LASER PRE-SET DO

NOT 3-UNDERNOCIRCUMSTANCES 4-CAUTION-USEOFCONTROLSORADJUSTMENTS,

SPECIFIED

CAUTION

• This Mini Component System Is classified as a CLASS 1 LASER product.

• The

the rear cover.

use

•

ceduresother than hazardous radiation

IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR

THAT

THE

FOLLOWING

EXPOSURE TO

THE

CABINETISREMOVED,

IS ON THE OUTER

INTO

THE

POWER

BEFORE

ATTEMPT

HEREIN

CLASS1LASER

APPAHEILiLASERDECLASSE

PRODuerD

CLASS t 'LASER

or controls or adjustments or performance of pro-

THE

LASER

EDGE

PICK-UP,LENS.

OUTPUTOFTHE

SHIPMENT.

TO

RE~ADJUST

MAY

RESULTINHAZARDOUS

PROOUCT

LASERDEClASE

PRbbUCT'

'those

-speclfted hei'eiilmay.result in

STARE

I

exposure.' v

OFTHE

PRECAUTIONS

BEAM.

THE

POWERISTURNEDONWITDOUTACOMPACT

THE

LASER

PICK-UP

THE

LASER

INTO

1

I~bel

LASER

WILL

UNIT

PICK-UP

THE

PICK-UP

is located on

POWER

ARE

OBSERVED

LIGHT

AND

UNIT

LENSATANY

OR

PERFORMANCE

RADIATION

LaserDiode Properties

MANUAL

OUTPUTIS

DURING SERVICINGTO

FOR

SEVERAL

REPLACEMENT

DURING REPLACEME:NT OR SERVICING.

EXPOSURE.

Material: GaAlAs Wavelength: 780 nm

Emission

Laser Output: max. 0.6 mW

LESS

THAN

CLASS 1

CLASS1.THEREFORE

DISCIN POSITION AND THE

SECONDSTO

SERVICE

TIME.

OF PROCEDURES

DETECT

PARTS

Duration: continuous

PROTECT

ARE

OTHER

BUTTHE

YOUR EYES

A DISC. DO

ALL

THAN

~"

LASER

IT IS

NOT

FACTORY

THOSE

"

As the laser beam used in this compact.disc player is harmful to the eyes, do not cabinet. Refer servicing to qualified personnel only.

\tARO! VARNINGI

The

voltage

the

selector

OACCA0001AWOO

OACCE0008AWOO

Avattaessajasuojalukilus Osynllq laserstralninp

selector is located on the AC in either direction until the

attemptto disassemble the

,

ohitettaessa olet alttiina nakymaltOmalie lasersateilylle, Ala katso sateeseen,

nar

.

..

.

....

denna

, "

,;,

'del ar,6ppnad och sparren ar urkopplad. Betrakta ej stralen,

.,

",

" .

VOLTAGE SELECTION

vottaqeselectorbox.H

correct

voltage figure is displayed

aojustment is necessary, use a

inthe

window

92LPLUG155A

next to the adiustrnent screw.

screwdriver

in order to turn

~"

Figure

2 AC

POWER

r: '

SUPPLY

-2-

CORD

ANDACPLUG

ADAPTOR

CD-K1W

•

General

Power source:

Power

consumption: Dimensions:

Weight:

•

Amplifier

Output power:

Input terminals:

Output terminals:

section

SPECIFICATIONS

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

500 W Width; 270 mm (10-5/B") Height; 356 mm (14-3/16") Depth; 355 mm (14")

10.5 kg

PMPO; 2400 W (total)

MPO; 440 W (220 W + 220

W)

(10 % T.H.D.) RMS; 300 W (150 W + 150

W)

(10 % THD.) Video/Auxiiiary (audio signal); 500 mV/47 kohms MIC 1/2; 1 mV/4.7 kcnms

Speakers; 6 ohms Headphones; 16-50 ohms (recommended; 32 ohms) Line output; 500 mV/47

kohrns

(23.1

Ibs.)

CD-K1W,CP-C1W

•

Tuner

Frequency range:

•

Cassette Type: Compact cassette tape Frequency response: 50 - 14,000 Hz (Normal tape)

Motor: Signal/noise ratio:

Bias and erasure

system: Tape speed: Wow

Heads:

section

and

flutter:

CP-C1W

deck

FM;BB- 108 MHz

SW2; 9.5 - 21.85 MHz SW1; 3.2 - 7.3 MHz

MW;

531

- 1,602 kHz

section

50 - 15,000 Hz (Cr02 tape) DC motor with electronic governor x 1

55 dB (TAPE 1, playback, Dolby NR off)

50 dB (TAPE 2, recording/playback, Dolby NR off) Dolby NR effect; 10 dB (at over 5 kHz)

AC

4.76 em/sec. (1-7/8 ips.)

0.15 % (WRMS) TAPE-I: Playback x 1 TAPE-2: Record/playback x 1

Erase x 1

•

Compact

Type: 3-disc multi-play compact Signal readout: Rotational speed:

Error correction: Quantization:

Filter: D/A converter:

Frequency response: Dynamic range: Wow and flutter:

disc

player

section

disc player Non-contact, 3-beam semiconductor laser pickup 200 - 500 rpm CIRC (Cross Interleave Reed-Solomon Code) 16-bit linear

4-times oversampling digital filter

t-blt D/A converter

20 - 20,000 Hz 90 dB (1 kHz) Unmeasurable (less than 0.001% W. peak)

ClV,

Approx.

•

Speaker

Type:

Rated Maximum Impedance: 6 ohms Dimensions: Width; 295 mm (11-5/8")

Weight:

input

section

power:

input

3-way type [20 em (7-7/8") woofer,

8 em (3-3/16") tweeter and super tweeter] 150 W

power: 300 W

Height; 361 mm

Depth; 378 mm (14-15/16")

6.7 kg (14.8 Ibs.)/each

(14-114")

-3-

NAMES.oF~PART$

CD-K1W

•

Front

panel

1.

Disc 1 Select/Direct Play Bullon

2.

Disc 1

3.

Disc 2

4.

Disc 2 Open/Close

5.

Disc 3 Selec/lDirecl

6.

Disc 3 Open/Close Bullon '

7.

Disc Trays

8.

Function Selector Bullons ) ,

9.

Remote Control Sensor

10.

On/Stand·by Button

11.

Volume

12.

Extra Ba.... Bulton

13do

14.

3D Surround Pass Bullon

151, Equali:'erSeleclor/D.imo Mode'Bulton

16.

(CD) Random Play

17.

(CDITUNER) MemoryJndica!or

18.

(TAPE 2) Direction Indicators

19.

(CD) Pause Indicator

20.

(CD) Disc Number lndlcators

21.

(CD) Mus'ic Schedule Indicators

22.

SRS Indicator

23.

Extra Bass,Indicator

24.

Timer Play Indicator,

25.

Timer Record Indicator

26.

Sleep Indicator

27.

(TAPE) Dolby NR Indicator

28.

(TAPE) Reverse Mode Indicator

29"

(T!\,PE)'Record)lndic~tor

30.~~rao~!'

31.

(CD) Play Indicator

32.

(CD) Repeat Indicator

33.

Spectrum AnalyzerNolume,

34.

FM Stereo Indicator

35.

FM Stereo

36.

(CD) Clear

37.

MemoryiSetBullon'

38.

(TAPE) Reverse

39.

(TAPE) Reverse Play Bullon

40.

(TUNER) Tuning Down Bullon (CD) Track Down/Review (TAPE) Fast Wind Bullon

41.

Jog Dial

42.

(TUNER) Tuning Up Bullon (CD) Track Up/Cue Bullon (TAPE) Fast Wind Bullon

43.

(CD) Play/Repeat Bullon (TAPE) Forward Play Bullon

44.

(TAPE) Record Pause Bullon

45.

(TAPE) Editing Speed Selector Bullons

46.

Headphone Socket

47.

Clock Bullon

48.

Karaoke Maker Switch

49.

Timer

50.

Sleep Bullon

51.

(CD) Pause Button

52.

Microphone SoCkets

53.

Microphone Level Controls

54.

(CDITAPE) Stop Bullon

55.

Digital Echo Control

56.

(TAPE) Dolby NR BUllon

57.

(TAPE 1) Casselle Compartment

58.

(TAPE 2) Casselle Compartment

Open/Clos~

Selecl/DirecIPlayBylll\n

Control',,1

Surround Mode Sullon

autten

:!lullon

plaYllullon'

".

.;~.,r,.~:

In,<!ica~or

Ma~er,lndicator

Mode,

Indicator

Butt"'n

MOdes"",,n

Bullon

'

",'

Bullon

'');

Lev!'1

I

Indlcato,r: '

1 2 3 4 5

8

-i'fi"'"lHI

2829,30313233" "

'iJ'

36 37

3Q

39 40

4142

4647484950515253

57

"'--

I

67

3435

43

545556

58

4445

l-

I

-4-

CD-K1W,CP-C1W

•

Rear

panel

1. Video/Auxiliary (Audio Signal) Input Sockets

2. Line Output Sockets

3. Span Selector Switch

4. AC Power Lead

5.

AC Voltage Selector

6. FM 75 Ohms Aerial Terminal

7. Aerial Earth Terminal

8. SW1/SW2IMW Aerial Terminal

9. Speaker Terminais

•

Remote

1. Remote Control Transmilter LED

• CD

2. Track Down/Review Bulton

3. Track Up/Cue Bulton

4. CD Selecl/Direct Play Bultons

5. Play/Repeat Bulton

6. Stop Bulton

7. Memory Bulton

8. Clear Bulton

9. Random Bulton

10. Pause Bulton

•

Tuner

control

section

11. Preset UplDown Buttons

•

Tape

control

12. Reverse Play Bulton

13. Record Pause Bulton

14. Stop Bulton

15. Forward Play Bulton

16. Fast Wind

•

Common

17. 3D Surround Pass Bulton

18. 3D Surround Mode Bulton

19. Function Selector

20. Balance

21. On/Stand-by Bulton

22. Dimmer Bulton

23. Equalizer Mode Bulton

24. Extra Bass Bulton

25. Volume Up/Down Bulton

section

Bultons

section

Bultons

1 2 3

4

5

-*-6

11111111111111111 11111111111111111

111111111111111111 111111111111111111

111111111111111111 11111111111111111

1111111111 1111111111 1111111111

1111111111

1

...

" I" I"

1~~-4

===

7 8

5

6

910

2

3

--H<5

11

12~

13

¥~15

1mt==14

1-

-

16

1718

23

19

==+~~~~-

20

21

----1~ili;j2J

-=-++-25

24

22

CP-C1W

•

Speaker

10. Tweeter

1ct.Wooferc

12. Super Tweeter

13. Bass Reflex Duct

------1I~;-speaKerTerm1n-als'~---~-=~-------------

section

_c~

~~_~

.

10

11

-5-

12

° - -l30----

CJ

"""--_-r14

~-

CD-KfW,CP-C1W

Caution Follow the excellent

1.

2.

3.

4.

STEP

1 2

3

4

5 Main PWB.

6

7

8 CD Switch 9 10 11 Tape Mechanism

12 Power Amp. PWB

13 Power Supply

14

15 CD Servo PWB 1. Socket ......................

16

17 CD Mechanism 1. Screw ....................... (S1) x2

Note:After

on

Disassembly

the

below-mentioned

unit

and

reassembling

performance:

Take

cassette

Be

suretoremove

outlet

before

Take

off

removed

the

unit,besuretorearrange

before

disassembling.

Take

suff.

circuits

CD-K1W

REMOVAL

Top

Cabinet 1. Scrsw .'.....................

Side Panel 1. Screw ....................... (B1) x6

(Left/Right)

CD Changer Block 1. Flat cable ................. (C1) xt

nylon

when

and

tape

startinqto

bands

disassembling.

cient

care

other

and

the

circuits

2. acrew.. .................... (B2) x4

,2. Screw ....................... (C2) x2

it, to keep, it

compact

power

disassemble

orwire

.:

onstatic

when

PROCEDURE

notes

disc

supply

holders

the

leads

electricity of

servicing.

when

plug

the

where

unit.

j'

safe

outofthe

After

where

3. Screw ....................... (C3) x2

TunerPWB·

..,

Front

Panel

DisplayPWB

1,.

Screw ....................... (01) x8 7-1

2. Screw .......................

3. Screw ....:.................. (03) x4

1.Socket ...................... (E1) x4

,

2, Flat Cable .......

3.

Flat

Wire ...:.....:.......... (E3) x2

4. Screw ....................... (E4) x2

5.

Screw ....................... (E5) x2

:

1. Flat

Wiie

2. Screw.-..........

3. Screw ..............

1. Knob .........................

2.

NuL

......................... (G2) x1

,........ (E2) x1

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

,.....;..... (F2) x1

,........ (F3) x2

3.Screw,.................. (G3) x12

PWB·

1. Screw .....................~.(H1) x3 7-2

.1.;,·Screw·

Headphones

Karaoke'PWB 1. Screw' ........................ (K1)x2

'PWB

1. Open.the cassette holder 7-2

'2. Screw ........................ (L1) x6

1.

. ,

2. Screw ...................... (M2) x4

3. Screw ......................·(M3)

;

i Screw ................

PWB 2. Screw ...................... (N2) x4

CD ChangerHolder 1. Screw ....................... (P1) x3

(Note) 2. Screw .......................

Tray Switch PWB

removing fromthe around optical

connector

the

pickup

1. Screw ......................

2. Top Bard .................. (S2) x1

3. Disc Holder .............. (S3) x1

4. Disc Tray.................. (S4) x3

5. Screw ....................... (S5) x1

6. Mechanism

7.

8. Mechanism Holder

9. Mechanism Holder... (S9) x1

10. Screw ................... (S10) x4

the

front

endofconnectorsoastoprotect

from

.....••......•.•.•••...

socket

.,..............,.... (M1)

~

...., (N1) ,,1

GUide ....................... ($6) x1

Holder

screw.:...'....;............(S7) x2

Bracket..................... (S8) x1

connector

wrap

electrostatic

the

conductive

for

the

damage.

<jisassembling

(G1)x2

(01) (02)

(R1) x1 7-5

DISASSEMBLY

and

ensure

unit.

from

the

wall

unit.

they

need

be

servicing

they

were

integrated

FIGURE

(Al)

x4

6-1 6-1

6-2

(02)

x1

7-1

(F1) x2 7-1

7-2

(J1)x1 7-2

9-2

xt

7-3

X2

7-4

x6 7-5 x3

8-1

optical

pickup

aiuminium

foil

the

-6-

CP-C1W

STEP REMOVAL PROCEDURE . '

Front Panel

1

2 Speaker 1.

CD-K1W

Side Panel

(Right)

1.

Nel..

...:..........." ........

2. Net Holder ............... (A2) ,,4

3. Screw ....;...•............

4.

screw.i..........

Screw ...................... (B1)

2.

screw

3. Bracket .....

4. Screw ..........:........:.. (B4) x2

5. Screw ......................

Top

\.i

...;...

......

".,.:

.......... (B2)

,."

...t

.......

Cab:in~t,

-.

(Bl)X~

03x10mm

~

(B2)x4 03x10mm

Rear Panel

Figure

Front Panel

CD Servo

PWB

(C1)x1

Main

PWB

Figure

.Side Panel

'(Left)

6·1

CD Changer Block

6·2

FIGURE

(A1)~1

I ' .6-2

I:

(AS)

x4

(A4) ,,2

X2

'8-3

X2

,

(B3) xt .

(B5) x4

~;

(Bl)'3

03x10mm

Rear

'Panel

CD-K1W,CP-C1W

(P1

)x2

03x10mm

(01)x8

03x10mm

CD SwitchPWB

FrontPanel

<,

kf-----"'-Lug Wire

Power (03)x4

AMP. PWB 03x10mm

Figure 7-1

-,

1.<"'"

"""

Tuner

PWB

~/(F1)X1

(F2)x1

03x6mm

(F3)x2

03x10mrn

(G1)x2

(E5)x1

03x8mm

CD Changer Block

(P1)x1 03x10mm

po'''''-

CD Servo PWB

CD Changer Holder

Figure 7-4

(G3)x12~

03x1

Dmm

Karaoke

-.

PWB

(K1)X2

03x8mm

Tape Mechanism

(N2)x4 04x8mm

--;~~~~~

.

....".,/-h.\"C,.~

(L1)x6

03x1Dmm

(N1

)x1

03x1Dmm

LugWire

Figure 7-2

(G2)x1

Display

PWB Headphones PWB

Open

~

(J1)x1

03x8mm

Cassette Holder (Left/Right)

Figure

7·5

(Q2)X3 03

x1Dmm

(M3)x1

~Bx6J))m_

,

Figure"'7-a---------------------~-----------

~7~

:...

I 0'2x6mm

I;'U$I)the pawl of

with

a.proper

:I·','_

(After drawing out the disc trays 1, 2, and 3, tum

overthe remove mechanism

TherebytheCD

figure

mechanism

successively

unit,

canbe

removed.)

unit,

thethreedisc

,starting

mechanism

di~c.

screwdriver.

Disc Tray 1

'Disc Tray 2

push

two

With

thedisc,tray 3.

shown

1 1

iray

1 1

,I

1 1 1 1

1

pawls,

and

t~aYs

from

inthe

right

.

....

(87)

"

the

,

-'

....

xa

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

,

,;

J\

.

-.

(83)

(85)

x1

ez.sxtzmm

'I

1 1

Normal state

.~

....

!"

~.'.

Figure

8-1

X!il1

~~~

~

1 } Pressin

2 parts.jstartinq

3 uppermost

withdraw the

turns

,9ne~:

.u

''',

;:)

the

arrow

withthe

to"

disctrays

'J

CP-C1W

(A3)x4

04x25mm

(A1)x1

(A4)x2

04x20mm

~Driver

TWeeter

Super

Tweeter

(B1)x2

03x10mm

(B5)x4

04x12mm

Front Panel

Speaker

Box

.

Woofer

Speaker

Box

Figure 8-2

Figure 8-3

-8-

n

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SWB108

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Figure 9 BLOCK DIAGRAM (1/3)

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