Casio VM-570B Service Manual And Parts List Download Page 11 | Manualshive

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WAVEFORMS

— 18 —

7

Q102 Base

0

Q800 Base

1

IC300 Pin 1

4

IC300 Pin 4

8

IC700 Pin 17

A

IC700 Pin 12

2

IC300 Pin 23

5

IC300 Pin 5

9

IC700 Pin 14

3

IC300 Pin 10, 11, 12

6

Q102 Collector

64µsec

600mV

1.0V

0.22µsec

64µsec

2.1V

64µsec

64µsec

3.9µsec

2.4V

2.6V

14V

4.0µsec

152nsec

547nsec

2.5V

2.3V

2.2V

420mV

2.5V

132µsec

63.5µsec

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Summary of Contents for VM-570B

Page 1: ...2 Power Supply 3 Adjustment Linear PCB 4 A D PCB 6 Printed Circuit Boards 7 Wiring Diagram 10 Electrical Parts List 11 Mechanical Parts List 16 Exploded View Disassembly 17 Waveforms 18 Schematic Diag...

Page 2: ...Table 2 Name Voltage Function VCC2 4 0 0 02V Main voltage VCC6 48 0 72 0V Tuning voltage VCC7 28 0 40 0V Display voltage VEE1 8 4 5 6V Display voltage DC 6V GND from IC400 Vref GND VCC2 VEE1 VCC7 VCC6...

Page 3: ...em Measuring Instrument VCC2 voltage setting Voltmeter Contrast adjustment TV signal generator Pattern generator Oscilloscope AGC adjustment TV signal generator Pattern generator IF levelmeter VR100 T...

Page 4: ...put TP5 AV C1 cord Contrast Adjustment Open soldering pad IF Adjust for 4 00 0 02V reading on voltmeter Voltmeter VR100 TP1 Input Input Input Output Output Connection Point Signal Connection Point Adj...

Page 5: ...Input Output Output Connection Point Signal Connection Point Adjust Adjust for Voltmeter VR700 Adjust for 2 00 0 05V reading on voltmeter TP6 Item Measuring Instrument Clock adjustment Voltmeter 2 Ad...

Page 6: ...C119 C117 C312 VR 300 T100 D110 R435 C115 L101 C610 C118 CN600 C110 CN100 VR 100 FU100 C612 C611 VR600 VR800 SW100 C410 R323 R322 C351 R302 R305 R304 C350 R301 C352 R303 C358 R316 C359 R114 R315 IC300...

Page 7: ...DC PCB Top View BL PCB Top View JK100 D150 T900 CN300 Q900 L900 Q901 C952 R900 C953 C811 C813 C810 C815 C812 C770 C850 R800 C710 R804 C781 L701 R721 C780 C782 D730 C700 VR700 C761 C762 R709 C783 D700...

Page 8: ...C777 R715 R716 R717 IC700 C775 C776 R704 R712 C D R711 A B R703 R702 R701 C763 R708 R707 R700 R710 L700 D800 Q806 C771 R820 R815 R801 C860 R818 R819 R816 R817 C861 C856 Q805 Q802 D810 D811 R808 Q800 R...

Page 9: ...WIRING DIAGRAM A D PCB 10 Linear PCB 22 1 22 1...

Page 10: ...EXPLODED VIEW DISASSEMBLY 17 17 1 34 2 1 2 2 2 32 5 1 8 32 4 37 2 4 2 3 2 5 2 2 7 31 30 33 10 11 2 2 5 6 9 16 2 16 1 13 14 15 16 12 19 20 21 22 22 36 26 35 25 28 23 23 1 23 5 23 3 23 4 29...

Page 11: ...Pin 4 8 IC700 Pin 17 A IC700 Pin 12 2 IC300 Pin 23 5 IC300 Pin 5 9 IC700 Pin 14 3 IC300 Pin 10 11 12 6 Q102 Collector 64 sec 600mV 1 0V 0 22 sec 64 sec 2 1V 64 sec 64 sec 3 9 sec 2 4V 2 6V 14V 4 0 sec...

Page 12: ...19 Linear PCB SCHEMATIC DIAGRAMS 7 6 TP1 1 2 TP5 5 4 3...

Page 13: ...20 A D PCB 8 TP6 9 11 10...

Page 14: ...BL PCB 21 C952 ECQ V1H184JZ 2 3 1 GND SP LAMP SP VCC1 1 T900 NT 01 L900 RCH 875 101K Q900 2SD965 R Q901 2SD965 R DE0905 SL181J2K EYP 1BF102L EYP 1BF102L C953 5 4 3 2 1 12 10 To Linear PCB...

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