Sharp MD-X8 manuels

Sharp MD-X8 Manuel de service (108 pages)

marque: Sharp | Catégorie: Lecteurs de CD | Taille: 6.37 MB |

Anglais

Table des matières

SERVICE MANUAL

1

SPECIFICATIONS

2

IMPORTANT SERVICE NOTES

2

NAMES OF PARTS

3

REMOTE CONTROL

4

MINIDISC SYSTEM LIMITATIONS

5

If a problem occurs

6

TROUBLESHOOTING

6

MD / CD STEREO

7

Quick-Guide

7

Guía rápida

7

DISASSEMBLY

8

Figure 10-2

10

Figure 10-3

10

Figure 10-1

10

MD Mechanism

11

MD MECHANISM SECTION

12

Loading pinch

13

Fixing washer

13

(G1) x 1

13

MD mechanism

13

CD MECHANISM SECTION

14

ADJUSTMENT

15

CD TEST MODE

16

MD SECTION

17

• Test Mode

18

2. AUTO adjustment mode

19

3. RESULT sub-mode

19

: Measurement value

24

8. TEST-PLAY mode

25

9. TEST-REC mode

25

10. INNER mode

25

Jitter Meter

26

EXPLANATION OF ERROR DISPLAY

27

-PROM Setting Mode Chart

30

Figure 30

30

NOTES ON SCHEMATIC DIAGRAM

31

FAN MOTOR

33

AC POWER

33

CORD(265)

33

M56748FP

35

TO µ-COM

36

IX2679AF

37

MIC PWB-C7

38

JACK PWB-E

38

AM SIGNALFM SIGNAL

39

MAIN PWB-A(1/3)

39

MAIN PWB-A(2/3)

40

FM SIGNAL

41

CD SIGNAL

41

MAIN PWB-A(3/3)

42

LC75396E

43

AUDIO PROCESSOR

43

MAIN PWB-A

44

8 9 10 11 12

45

FOCUS/TRACKING/

46

SPIN/SLIDE DRIVER

46

MD OPTICAL

48

PICK UP UNIT

48

MD MECHANISM SWITCH PWB-H

48

DISPLAY PWB

50

LED PWB-C4

50

SWITCH B PWB-C3

50

SWITCH C PWB-C5

50

LAMP PWB-C1

50

SWITCH A PWB-C2

51

LAMP PWB-C1 SWITCH A PWB-C2

52

DISPLAY PWB-C6

53

POWER PWB-B1

55

POWER AMP. PWB-B2

57

SITUATION :

58

MD MAIN PWB-G

61

MD MECHANISM SWITCH

62

MD OPTICIAL PICKUP UNIT

62

MD PLAYBACK SIGNAL

65

MD RECORD SIGNAL

65

MD MAIN PWB -G(TOP)

66

MD MAIN PWB - G (BOTTOM)

67

VOLTAGE (MD MAIN PWB)

68

WAVEFORMS OF CD CIRCUIT

69

WAVEFORMS OF MD CIRCUIT

70

D/A CONVERSION PLAY

71

TROUBLESHOOTING (CD SECTION)

72

1.0V/DIV

73

0.5µsec/DIV(DC)

73

(When playing

73

back the disc)

73

TROUBLE SHOOTING (MD SECTION)

76

• Normal playback

78

• Audio playback circuit

78

• Focus servo failure

79

• Disc motor fails to run

80

• Tracking servo failure

80

• Slide servo failure

80

FUNCTION TABLE OF IC

81

ROM:128K

84

REF — + 3.15V

89

PARTS GUIDE

91

INTEGRATED CIRCUITS

92

TRANSISTORS

92

TRANSFORMERS

92

VARIABLE RESISTORS

93

VIBRATORS

93

CAPACITORS

93

DESCRIPTIONNO

94

PART CODE NO. PARTS CODE

94

DESCRIPTION

94

RESISTORS

95

DESCRIPTIONPARTS CODE

97

NO. PART CODE

97

OTHER CIRCUITRY PARTS

98

MD MECHANISM PARTS

99

CD MECHANISM PARTS

100

CHANGER MECHANISM

100

CABINET PARTS

100

OTHER SERVICE PARTS

101

SPEAKER BOX PARTS

101

ACCESSORIES

101

MAIN UNIT

107

Pad, Remote

107

Remote Control

107

ALL RIGHTS RESERVED

108

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