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Sharp QT-CD210, Service Manual

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Sharp QT-CD210 Service Manual Download Page 9

QT-CD210/C

– 9 –

Figure 9 SCHEMATIC DIAGRAM (2/2)

7

8

9

10

11

12

• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.

C216
0.1(ML)

C215
0.1(ML)

C220
1/50

C241
47/16

C219
1/50

C832
47/16

C238
100/10

C237
100/10

D201
1N4148

C651
0.022

R232
120

C236

100/10

R231
120

C235
100/10

R216
2.2K

R215
2.2K

C226
0.022

R860
100

R835
270

R836
270

R837
10K

R838
10K

C851
3.3/50

C849
0.0022

C847

22/16

C848

22/16

C853

0.022

C844
100/10

L801
0.82

µ

H

D801
1N4004

LCD801
LCD DISPLAY

8

7

6

5

4

3

2

1

FW806 

R848
2.2K

SW804
CUE/UP 

SW803
REVIEW/
DOWN 

SW802
STOP 

SW801
PLAY/
PAUSE 

R849
6.8K

R847
1K

Q803
KRC107 M
SWITCHING

C240
0.1

C239
0.1

C225
100/10

IC201

TA8227P

POWER

AMP. 

12

11

10

9

8

7

6

5

4

3

2

1

R222
1K

C222
0.001

C221
0.001

R221
1K

C218
0.0015

VR201-A
20K(B) 

C217
0.0015

R219
1K

R220
2.7K

R843
3.3K

C204
0.022

D203
1N4148

Q204
KTA1046 Y
REGULATOR

Q205

KTC3199 GR

C203
0.01

D202

1N4148

R201
2.2K

R202
4.7K

ZD201

DZ5.1BSB 

R203
560

C202
47/16

SW201-A

D651

1N4004

SW201
FUNCTION
SELECTOR

SW201-C

SW201-B

C652
0.022

C824
0.022

C855
0.022

C653

0.022

D652

1N4004

CNS602

CNP602

R230
2.7

C854

0.0068

R456
15K

R455
15K

R457
1K

R458
1K

CNP201

C233
470/10

C234
470/10

R820
47K

C840
0.047

C823
0.022

X801
16.93MHz

R833
3.3K

R821
22K

C833
0.033(ML)

R834
3.3K

C838
0.047(ML)

R812
1K

80

79

78

77

76

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 

50

 

30

29

28

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

C846
10/16

R829
3.3K

R830

10K

C839
0.047(ML)

R861
3.3K

R831
3.3K

C835
470P

C834
470P

R844
3.3K

R827
15K

C827
0.015(ML)

R832
3.3K

C836
0.047(ML)

R862
22K

C845
0.047

R824
10K

C825
47/16

C826
47P

C837
0.047(ML)

R828
10K

C829
0.0047

C828
0.0027

C830
0.01(ML)

R839
47K

R840
10

C227

3300/16

Q351
KTC3199 GR

L301

BIAS OSC.

R354
4.7

C353
0.0056(ML)

C351
0.0022
(ML)

R352
150

R353
33K

R351
100

C354
0.022(ML)

C352
100/10

SW102-D 

SO651

AC INLET

SOCKET

AC120V,60Hz 

T651

POWER

TRANSFORMER

FM

AM

BATTERY
DC 9V ["D" size (UM/SUM-1,R20 orHP-2)
battery x 6]

R-CH

L-CH

POWER PWB-A3

NC

SP202 

SP201 

MUTE

R-CH(CD)

L-CH(CD)

GND(AUDIO)

GND(POWER)

GND(CD) 

SPEAKERS

L-CH

R-CH

4 OHM 

4 OHM 

+5V(CD) 

SELECTOR

-

+

SW601
TAPE
MAIN

M601
TAPE
MOTOR 

TAPE

AM

FM

CD

CD

FM

AM

TAPE

AC/DC 

AC  INPUT

- 

- 

+ 

+ 

R

TAPE

AM

FM

CD

CD

TAPE

PUSEL2

DISPLAY

TRAY CLOS

MVSS1

MVDD1

CDSEL0

SEG1

COM1

MVDD

MVSS

MXI 

MXO 

REMO-IN 

RYNCREC 

RESET 

DVSL

LO

DVRL

DVDD

DVRR

RO

DVSR

TEST0

SPCK

SPDA

COFS

DOUT

SBSY

SBOK

VDD1

VSS1

P2VREF

PDO

TMAX

LPFN

LPFO

PVREF

VCOF

AVSS

SLCO

RFI

AVDD

RFCT

RFZI

RFRP

FEI

SBAD

TEI

TEZI

FOO

TRO

VREF

RFGC

TEBC

FMO

DMO

2VREF

SEL

VDD2

VSS2

XI

XO

XVDD

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

SEG14

DOOR  IN

DOOR  OUT

ADIN1

ADIN2

MUTE

PU IN

TEST1

TEST2

TEST3

TEST4

TEST5

/HSO

CDSEL1

TRAY OPEN

PUSEL0

PUSEL

XVSS

COM2

COM3

COM4

NC

CD CONTROL PWB-A2

1 

1 

10

CNS201

1

2
3

4

5

19

23

22

21

20

13

17

16

15

14

12

8

9

10

11

M

1
2

2

1

1

2

3

1

2

3

3

2

1

4

6

3

2

1

12 11

10

10

R826
220K

R846
330

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NCNC

NCNC

NCNC

NCNC

NCNC

NCNC

NCNC

NCNC

49 48 47 46 45 44 43 42 41 40

38 37 36 35 34 33 32 31

39

NC

NC

NC

81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

C850
0.0022

C852
3.3/50

VR201-B
20K(B) 

C654
0.022

D654

1N4004

D653

1N4004

P

NC

NC

IC802

SERVO/

SIGNAL CONTROL

TC9457F0

ALIZER AMP.

SW201
FUNCTION
SELECTOR

SW201-D 

SW201
FUNCTION
SELECTOR

+

+

-

-

RECORD SIGNAL

PLAYBACK SIGNAL

CD SIGNAL

FM SIGNAL

AM SIGNAL

VOLUME 

VOLUME 

SW102
RECORD/
PLAYBACK

SW810
CD LID 

OPEN/CLOSE

9.05V

5.08V

8.44V

4.39V

8.44V

4.96V

2.49V

2.49V

2.49V

2.49V

2.49V

2.49V

2.49V

2.49V

2.49V

2.49V

2.49V

2.49V

2.49V

2.49V

0V

0V

0V

0V

4.98V

0V

0V

0V

0V

4.98V

0V

4.98V

4.98V

0V

4.97V

0V

0V

0V

0V

0V

0V

0V

0V

0V

4.97V

2.49V

0.43V(2.36V)

(   ): STOP

1.66V

2.46V

0V

4.97V(0V)

4.98V

0V

4.18V

2.10V

2.08V

(0V)

2.10V(1.34V)

51 

2.01V(4.12V)

52 

2.10V

53 

1.50V

0V

2.10V

2.10V

4.98V

2.10V

2.10V

2.73V(1.15V)

2.30V(2.1V)

2.94V(0.989V)

2.14V

2.14V

2.18V

2.11V

2.10V

2.14V

2.10V

2.10V

2.17V

4.18V

2.47V(0V)

4.97V

0V

0V

2.08V

2.57V

4.92V

0V

2.48V

2.37V

4.72V

2.36V

2.47V

0V

0V

0V

4.95V

0V

4.96V

4.96V

0.30V

0V

4.96V

2.33V

2.33V

2.33V

2.33V

 STOP

4.97V(5.0V)

0V

3.32V

0.68V

8.35V

4.27V

8.01V

0V

0V

0.56V

0V

0V

0.56V

4.67V

0V

8.02V

4.33V

9.05V

13

14

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

+B

4

5

1

7

6

12

14

15

11

17

16

RECORDING
BIAS OSCILATOR

SWITCHING

12

13

Summary of Contents for QT-CD210

Page 1: ...SISTOR 12 WAVEFORMS OF CD CIRCUIT 13 TROUBLESHOOTING CD SECTION 14 FUNCTION TABLE OF IC 18 PARTS GUIDE EXPLODED VIEW PACKING OF THE SET FOR QT CD210 ONLY In the interests of user safety the set should be restored to its original condition and only parts identical to those specified should be used QT CD210 BL QT CD210 S QT CD210 WH QT CD210C S SERVICE MANUAL SHARP CORPORATION No SY964QTCD210 This d...

Page 2: ...ththeAClinecordplugconnection reversed Any reading of 0 3 volt RMS this corresponds to 0 2 milliamp AC or more is excessive and indicates a potential shock hazard which must be corrected before returning the audio product to the owner SPECIFICATIONS Specifications for this model are subject to change without prior notice TO EXPOSED METAL PARTS CONNECT TO KNOWN EARTH GROUND TEST PROBE 0 15 µ F 1 5k...

Page 3: ...Telescopic Rod Aerial 20 AC Power Input Socket FITTING OF DIAL POINTER Figure 3 2 Main PWB Main PWB Dial Pointer Drum Dial Pointer Dial Pointer Top Cabinet Tuning Knob Top Cabinet Drum A Top Cabinet Drum Variable Capacitor B 1 2 3 4 5 6 7 8 9 10 15 16 17 12 13 14 11 18 19 20 Setting method of the dial pointer 1 Remove the front cabinet Refer to Fig 4 1 on page 4 Disassembly method 2 Remove the dia...

Page 4: ...tricity of integrated circuits and other circuits when servicing STEP REMOVAL PROCEDURE FIGURE Figure 4 3 Figure 4 1 Figure 4 2 CD MECHANISM SECTION Perform steps 1 to 4 of the disassembly method to remove the CD mechanism How to remove the pickup See Fig 4 4 1 Remove the screws A1 x 2 pcs to remove the shaft A2 x1 pc 2 Remove the stop washer A3 x1 pc to remove the gear A4 x 1 pc 3 Remove the pick...

Page 5: ...r of removal Note When putting on the belt ascertain that the belt is not twisted and clean it How to remove the motor See Figs 5 4 1 Remove the mainbelt 2 Remove the screw D1 x 1 pc to remove the motor mount 3 Remove the screws D2 x 2 pcs to remove the motor Note Whenmountingthemotor payattentiontothemotormounting angle How to remove the flywheel See Fig 5 5 1 Remove the belt 2 Remove the stop wa...

Page 6: ...Coverage fH TC2 FM Tracking fL 88 0 MHz L1 fH 108 0 MHz TC1 Test Stage Specified Value Adjusting Point Instrument Connection Input Pin 1 of IC1 Output Pin 18 of IC1 Iuput Antenna Output Speaker Terminal CNP201 Load resistance 4 ohms AM IF RF AM IF T3 Input Antenna Output Pin 18 of IC1 AM fL L4 Input Antenna Band Coverage fH TC4 Output Speaker AM Tracking fL 600 kHz L3 Terminal CNP201 fH 1 400 kHz ...

Page 7: ...button only 2 You can only move the pickup 3 The LCD display should be the same as it is for normal CD operations 1 2 When the PLAY button is pressed the laser will be lit If the laser is lit and the PLAY button is pressed again play back will start from the current pickup position In the playback operation the STOP button is pressed the laser will be geve out and the playback is stopped Operation...

Page 8: ...DIO RF VCC FM OSC AM OSC VCC FM AFC DET MPX IN CNP803 FM ROD ANTENNA ALC T FILTER VCC GND NF1 NF2 IN2 IN1 OUT2 OUT1 R P R R P R P P P R R R R L CH R CH PRE AMP ERASE HEAD TAPE AM FM CD CD TAPE FM OSC AM ANT FM OSC AM IF L CH R CH FM RF IN MIX OUT FM DET P SP SP SL SL PU IN LD K E E K LD VR PD G B B A F F C TR TR FO FO R R F F 2200P 2200P PICK UP UNIT CD MOTOR PWB B M701 SLED MOTOR M702 SPINDLE MOT...

Page 9: ... CD L CH CD GND AUDIO GND POWER GND CD SPEAKERS L CH R CH 4 OHM 4 OHM 5V CD SELECTOR SW601 TAPE MAIN M601 TAPE MOTOR TAPE AM FM CD CD FM AM TAPE AC DC AC INPUT R TAPE AM FM CD CD TAPE PUSEL2 DISPLAY TRAY CLOS MVSS1 MVDD1 CDSEL0 SEG1 COM1 MVDD MVSS MXI MXO REMO IN RYNCREC RESET DVSL LO DVRL DVDD DVRR RO DVSR TEST0 SPCK SPDA COFS DOUT SBSY SBOK VDD1 VSS1 P2VREF PDO TMAX LPFN LPFO PVREF VCOF AVSS SLC...

Page 10: ...235 R232 C236 C238 C234 C240 C226 D201 C237 C204 Q205 R202 Q204 R201 C239 C233 C227 R122 R120 C119 C118 R118 R116 R114 C116 C106 R106 R354 Q351 R353 C353 L301 C351 R351 C352 C354 R352 R230 CNP602 Q803 R850 Q802 D801 C813 C814 R811 R803 BI802 BK WH WH WH WH BK WH WH WH WH WH WH WH BI801 R802 C802 C801 C816 R805 R806 C804 R804 C815 C817 R801 Q801 R853 C839 C835 C834 C805 C807 C806 SW803 REVIEW DOWN ...

Page 11: ... 3 4 BR COLOR TABLE RD R OR YL GR BL VL GY WH W BK PK BROWN RED ORANGE YELLOW GREEN BLUE VIOLET GRAY WHITE BLACK PINK T651 POWER TRANSFORMER 229 230 BATTERYS DC9 V D size UM SUM 1 R20 or HP2 battery x 6 YL TAPE MOTOR 240 6 M601 TAPE MAIN 240 7 SW601 1 SW702 PICKUP IN M702 SPENDLE MOTOR M701 SLED MOTOR CNP803 1 2 3 4 5 6 5 4 3 2 1 7 8 6 5 4 3 2 1 PICK UP UNIT CD MOTOR PWB B POWER PWB A3 RD BK BR BK...

Page 12: ... resistor without any symbol is an ohm resistor The resistor designated Fusible is a fuse type resistor Capacitor To indicate the unit of capacitor a symbol P is used this symbolPmeansmicro micro faradandtheunitofthecapacitor withoutsuchasymbolismicrofarad Astoelectrolyticcapacitor the expression capacitance withstand voltage is used CH TH RH UJ Temperature compensation ML Mylar type P P Polypropy...

Page 13: ...TOP PLAY TCD 782 TNO 02 PLAYBACK TEI 1 LO 1 TRO 2 RO 2 SBAD 3 1 2 3 4 6 7 11 15 16 17 5 6 5 7 8 5 9 10 6 11 12 13 14 6 11 15 6 11 15 IC802 66pin IC803 20pin IC802 45pin IC803 21pin IC802 72pin IC802 74pin IC802 62pin IC802 67pin IC802 64pin IC802 71pin IC802 62pin IC802 63pin IC802 67pin IC801 22pin IC802 71pin IC802 62pin IC801 19pin IC802 67pin IC801 17pin IC802 71pin IC802 64pin IC802 67pin IC8...

Page 14: ...t is prohibited by law Cleaning Disc PARTS CODE UDSKA0004AFZZ Cleaner Liquid Figure 14 When the CD does not function When the CD section does not operate when the objective lens of the optical pickup is dirty this section may not operate Clean the objective lens and check the playback operation When this section does not operate even after the above step is taken check the following items Remove t...

Page 15: ...s Yes No No The optical pickup is faulty Check as stated in item FOCUS SERVO SAWTOOTH WAVE FAILURE Yes Check the periphery of IC801 and BI801 CNS801 Is it normal No Check the pattern between pin 13 of IC801 and pin 63 of IC802 Check the periphery of IC801 and BI801 CNS801 IC801 is faulty Yes Is 5V applied to the emiter of Q204 Is 5V applied to the collector of Q204 Yes No No Check the PWB pattern ...

Page 16: ...and IC803 No BI801 CNS801 connection failure or optical pickup failure Yes Spindle motor clv servo failure Is above wave obtained between pins 5 and 6 of IC803 Is following wave output to the pin 55 DMO of IC802 when the Function is changed to PLAY from STOP No Yes Check the procedure in HF ERROR If OK IC802 is faulty Check the PWB pattern between pin 72 DMO of IC802 and pins 5 and 6 of IC803 If O...

Page 17: ...Is the following wave output to the pins 12 TEO of IC801 during track search in normal playback Yes Yes No Check as stated in item SLED MOTOR OPERATION FAILURE No IC802 failure No Check the PWB pattern between pin 67 TRO of IC802 and pin 28 of IC803 Check the PWB pattern between pins 25 and 26 of IC803 and Optical pickup If OK Optical pickup failure Yes Is the above wave output to the pins 64 TEI ...

Page 18: ...P instruction executed the device s current consumption is reduced to 1µA or less allowing for the supply voltage to be lowered to 2 0V The device is reset and the program starts from address 0 when a voltage of 2 7V or more is applied to this pin when it is at 0V power on reset 21 K0 P1 0 TRAY CLOSE Input 4 bit CMOS I O ports 22 K1 P1 1 TRAY OPEN Input These ports can be set for input or output b...

Page 19: ...y a program 43 DOUT DOUT Input Output Digital output pin 44 SBSY SBSY Input Output Subcode block sync output pin It outputs a high at the S1 position when subcode sync is detected 45 SBOK SBOK Input Output Subcode Q data CRCC determination result output pin It outputs a high when CRCC check is found OK 46 VDD VDD1 Input Output CD unit s digital block power supply pins 47 VSS VSS1 Input Output Norm...

Page 20: ...ed for output ports if they have been set for CD control signal input output pins 77 XVSS XVSS Input Output CD s crystal oscillator power supply pins Normally connect these pins to the power supply lines that are used in common for the VDD and VSS pins 78 XI XI Input Output CD s crystal oscillator input output pins 79 XO XO Input Output Normally connect 16 934MHz here This clock is used as the sys...

Page 21: ...nput in which case it is possible to count pulses or generate an interrupt at a given pulse count address 3 93 MXO MXO Crystal oscillator pins for the controller 94 MXI MXI The oscillator clock is used as the timebase for the clock facility or as the controller s system clock Connect a 4 5MHz or 75kHz crystal resonator to the MXO and MXI pins Since these pins do not contain internal feedback resis...

Page 22: ...QT CD210 C 22 M E M O ...

Page 23: ...e VCK Ceramic type VCT Semiconductor type VC MF Cylindrical type without lead wire VC MN Cylindrical type without lead wire VC TV Square type without lead wire VC TQ Square type without lead wire VC CY Square type without lead wire VC CZ Square type without lead wire VC J The 13th character represents capacity difference J 5 K 10 M 20 N 30 C 0 25 pF D 0 5 pF Z 80 20 If there are no indications for...

Page 24: ...lectrolytic C120 RC GZA476AF1C J AB 47 µF 16V Electrolytic C121 122 VCKYPA1HF103Z J AB 0 01 µF 16V C123 RC GZA227AF1A J AB 220 µF 10V Electrolytic C202 RC GZA476AF1C J AB 47 µF 16V Electrolytic C203 VCKYPA1HF103Z J AB 0 01 µF 16V C204 VCKYPA1HF223Z J AB 0 022 µF 50V C215 216 VCQYKA1HM104K J AB 0 1 µF 50V Mylar C217 218 VCKYPA1HB152K J AA 0 0015 µF 50V C219 220 RC GZA105AF1H J AB 1 µF 50V Electroly...

Page 25: ...ith Gear Sled M702 RMOTV0408AFM3 J AN Motor with Chassis Spindle SO651 QSOCA0001SJZZ J AE AC Inlet Socket QT CD210 C SO651 QSOCA0005SJZZ J AC Inlet Socket QT CD210C SP201 202 VSPA010PB014S J AG Speaker Woofer SW102 QSW S0001SJZZ J AD Switch Slide Type Record Playback SW201 QSW S0002SJZZ J AD Switch Slide Type Function Selector SW601 240 7 9GD640101149 J Switch Leaf Type Tape Main SW702 QSW F9001AW...

Page 26: ...0001SJZZ J AC Polyethylene Bag Unit SSAKK0002SJZZ J AC Polyethylene Bag AC Power Supply Cord TLABR1082SJZZ J AB Label Bar Code Packing Case TLABZ0015SJZZ J AC Label VJ No Packing Case ACCESSORIES QACCD0006AW00 J AP AC Power Supply Cord For QT CD210C QACCU0001SJ00 J AR AC Power Supply Cord For QT CD210 TINSE0031SJZZ J AC Operation Manual For QT CD210 TINSK0023SJZZ J Operation Manual For QT CD210C T...

Page 27: ...QT CD210 C A B C D E F G H 1 2 3 4 5 6 Figure 4 CD MECHANISM EXPLODED VIEW 4 701 304 701 302 301 702 303 M702 703x2 305x2 SW702 M701 305 PWB B 704 306 ...

Page 28: ...06 SW810 607x3 SO651 605x2 224 605x2 T651 229 225 227 226 604x4 SP202 208 230 219 605x3 218 201 SP201 604x4 604x7 PWB A1 604x4 LCD801 228 PWB A2 209 606 232 210 235 235 231 604 605x2 605x2 603x2 211 212 213 214 215 216 223 TAPE MECHANISM 240 240 1 240 2 240 3 240 4 240 5 240 6 M601 240 7 SW601 238 610 220 603x2 601 604 234 233 221 608 Motor M601 REW FF Clutch Flywheel FF REW Belt Main Belt BELT CO...

Page 29: ...t Replacement Item 6 Polyethylene Bag Unit SSAKH0001SJZZ Packing Case SPAKC0091SJZZ VJ No Label TLABZ0015SJZZ Top Pad Packing Case SPAKZ0013SJZZ Bar Code Label TLABR1082SJZZ Feature Label AC Power Supply Cord Packing Add Left Right SPAKA0036SJZZ Polyethylene Sheet Unit SPAKZ0014SJZZ FRONT FRONT Operation Manual R L FRONT Polyethylene Bag AC Power Supply Cord SSAKK0002SJZZ ...

Page 30: ...QT CD210 C M E M O 7 ...

Page 31: ...QT CD210 C M E M O 8 ...

Page 32: ...electronic mechanical photocopying recording or otherwise without prior written permission of the publisher COPYRIGHT 2000 BY SHARP CORPORATION ALL RIGHTS RESERVED A0001 2062NS HA C SHARP CORPORATION Communication Systems Group Quality Reliability Control Center Higashihiroshima Hiroshima 739 0192 Japan Printed in Japan SC SL LAG ...

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