Sharp MD-X8 Service Manual Page 70
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MD-X8
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WAVEFORMS OF MD CIRCUIT
1997 / 08 / 04 09:30:15
T
TP1274
(EFMMON)
NORM: 100M S/s
CH1 500mV
AC 10:1
500ns/div
T
1
Record Len
SMOOTH OFF
BW FULL
CH1 - - -
CH2 0.000V
Main 500
Hold Off
MIN
Trigger
NORMAL
EDGE
CH1
Zoom 10
CH3 0.000V
CH4 0.000V
Filter
Offset
0.000 000 000s
Detay
1
PLAY STATE
Stopped
1997 / 08 / 04 11:43:05
Record Len
SMOOTH OFF
BW FULL
CH1 - - -
CH2 - - -
Main 10K
Hold Off
MIN
Trigger
NORMAL
EDGE
CH1
Zoom 100
CH3 0.000V
CH4 0.000V
T
NORM: 2M S/s
CH1 500mV
AC 10:1
500us/div
CH2 500mV
AC 10:1
T
1
2
Filter
Offset
0.000 000s
Detay
TP1101
(T-)
3
TP1103
(T+)
2
GROOVE PLAY
Stopped
TP1137
(WBO)
5
TP1138
(ADLPFO)
4
Record Len
SMOOTH OFF
BW FULL
CH1 0.000V
CH2 0.000V
Main 10K
Hold Off
MIN
Trigger
NORMAL
EDGE
CH1
Zoom 100
CH3 0.000V
CH4 0.000V
Filter
Offset
0.000 000 0s
Detay
1997 / 08 / 04 11:56:15
T
NORM: 50M S/s
Stopped
CH1 1V
DC 10:1
20us/div
CH2 2V
DC 10:1
T
1
2
PIT PLAY
TP1137
5
TP1138
4
Record Len
SMOOTH OFF
BW FULL
CH1 0.000V
CH2 0.000V
Main 10K
Hold Off
MIN
Trigger
NORMAL
EDGE
CH1
Zoom 100
CH3 0.000V
CH4 0.000V
Filter
Offset
0.000 000 0s
Detay
1997 / 08 / 04 11:55:38
T
NORM: 50M S/s
Stopped
CH1 1V
DC 10:1
20us/div
CH2 2V
DC 10:1
T
1
2
GROOVE PLAY
Record Len
SMOOTH OFF
BW FULL
CH1 0.000V
CH2 0.000V
Main 10K
Hold Off
MIN
Trigger
AUTO
EDGE
CH2
Zoom 100
CH3 - - -
CH4 0.000V
Filter
Offset
0.000 00s
Detay
1997 / 08 / 04 13:35:24
T
NORM: 1M S/s
Stopped
CH1 2V
DC 10:1
CH3 200mV
AC 10:1
CH4 5V
DC 10:1
1ms/div
CH2 2V
DC 10:1
T
1
4
3
2
TP1274
1
TP1218
(TEMON)
6
TP1212
(TCRS)
8
TP1217
(TOTMON)
7
PIT PLAY
Record Len
SMOOTH OFF
BW FULL
CH1 0.000V
CH2 0.000V
Main 10K
Hold Off
MIN
Trigger
AUTO
EDGE
CH2
Zoom 100
CH3 - - -
CH4 0.000V
Filter
Offset
0.000 00s
Detay
1994 / 08 / 04 13:37:11
T
NORM: 1M S/s
Stopped
CH1 2V
DC 10:1
CH3 200mV
AC 10:1
CH4 5V
DC 10:1
1ms/div
CH2 2V
DC 10:1
T
1
4
3
2
TP1274
1
TP1218
6
TP1212
8
TP1217
7
GROOVE PLAY
Record Len
SMOOTH OFF
BW FULL
CH1 - - -
CH2 - - -
Main 10K
Hold Off
MIN
Trigger
AUTO
EDGE
CH2
Zoom 100
CH3 - - -
CH4 0.000V
Filter
Offset
0.00s
Detay
1997 / 08 / 04 13:57:22
T
NORM: 1k S/s
Stopped
CH1 2V
AC 10:1
CH3 5V
AC 10:1
CH4 5V
DC 10:1
1s/div
CH2 2V
AC 10:1
T
1
4
3
2
TP1216
9
TP1102
(F+)
12
FOK
14
DSENSE
13
POWER ON
POWER OFF -> STAND-BY
Record Len
SMOOTH OFF
BW FULL
CH1 0.000V
CH2 0.000V
Main 10K
Hold Off
MIN
Trigger
AUTO
EDGE
CH1
Zoom 100
CH3 0.000V
CH4 0.000V
Filter
Offset
0.00s
Detay
1997 / 08 / 04 12:58:01
T
NORM: 500 S/s
Stopped
CH1 2V
DC 10:1
CH3 2V
DC 10:1
CH4 2V
DC 10:1
2s/div
CH2 2V
DC 10:1
T
1
4
3
2
TP1216
(FEMON)
9
TP1218
6
SPDRF
11
SPDRR
10
POWER OFF -> STAND-BY
POWER ON
- 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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