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Casio TV-600B Service Manual & Parts List

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POCKET TELEVISION
Specifications............................................................................................. 1
Block Diagram ........................................................................................... 2
Circuit Description...................................................................................... 3
Linear PCB.......................................................................................... 5
A/D PCB .............................................................................................. 9
Troubleshooting ....................................................................................... 10
Printed Circuit Boards .............................................................................. 11
Wiring Diagram ........................................................................................ 15
Exploded View / Disassembly.................................................................. 16
Electrical Parts List .................................................................................. 17
Mechanical Parts List............................................................................... 23
IC and Transistor Lead Identification ....................................................... 24
Schematic Diagrams and Waveforms ..................................................... 26
INDEX
TV-600B
DECEMBER 1994
(with price)
Page
R

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   Summary of Contents for Casio TV-600B

  • Page 1: Table Of Contents

    (with price) POCKET TELEVISION TV-600B DECEMBER 1994 Page Specifications..................... 1 Block Diagram ................... 2 Circuit Description..................3 Adjustment Linear PCB..................5 A/D PCB ....................9 Troubleshooting ..................10 Printed Circuit Boards ................11 Wiring Diagram ..................15 Exploded View / Disassembly..............16 Electrical Parts List ..................

  • Page 2: Circuit Description

    CIRCUIT DESCRIPTION TUNING VOLTAGE GENERATOR VCC6 IC500 MSC1169MS-K VREF Figure 1 This circuit generates the DC tuning voltage BT for selecting a channel with a TU pulse being output from IC700. IC500 has 3 circuits for converting pulses to voltages; it selects one of VHF-L, VHF-H, or UHF, and causes the tuning voltage to be output from the OUT terminal (pin 12).

  • Page 3: Power Supply

    POWER SUPPLY VCC1-1 T100 D155 CP100 VCC7 D152 CP108 VCC6 CP107 Q111 VCC2 Vref L101 C135 CP109 R115 D152 D150 D100 C140 VR100 VEE1 Q100 CP110 Q101 CP104 Figure 3 The power supply consists of a DC-DC converter and causes the voltages to be output as shown in Table 2. Name Voltage Function...

  • Page 4: Adjustment

    ADJUSTMENT LINEAR PCB Items To Be Adjusted Item Measuring Instrument VCC2 voltage setting Voltmeter Video detection coil adjustment TV signal generator, pattern generator, oscilloscope, low-pass filter AFT coil adjustment Sweep generator, oscilloscope, voltmeter Contrast adjustment TV signal generator, pattern generator, oscilloscope AGC adjustment TV signal generator, pattern generator, IF levelmeter Adjustment And Test Point Locations...

  • Page 5

    VR100 PadIF VR300 VR200 Bottom View Equipment Connection / Adjustment Procedure VCC2 Voltage Setting TV-600 Voltmeter Output Input Input Input Output Output Adjust Result Connection Point Signal Connection Point Adjust for 3.95 ± 0.02 V VR100 Voltmeter reading on voltmeter. —...

  • Page 6: A/d Pcb

    A/D PCB Item to Be Adjusted Item Measuring Instrument Clock adjustment Voltmeter Adjustment And Test Point Locations TOP VIEW Equipment Connection / Procedure Clock Adjustment TV-600 Voltmeter Output Input Input Input Output Output Adjust Result Connection Point Signal Connection Point Adjust for 2.05 ±...

  • Page 7: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS TOP VIEWS Linear C202 C115 C244 C291 R247 C340 R222 F201 C345 D180 FU100 SW100 Q950 L950 T950 Q951 R950 507BL — 11 —...

  • Page 8

    BOTTOM VIEWS Linear CP590 CP203 VR100 CP541 IC500 Q100 CP542 Q101 CP204 CP322 R115 R500 C550 CP320 Q111 CP500 CP235 CP208 D100 CP209 CP236 D150 CP110 CP210 CP109 D155 CP207 CP221 D152 CP108 C146 CP327 CP326 C237 CP104 HP200 D154 CP206 Q200 CP100...

  • Page 9

    TOP VIEW IC703 R815 Q802 Q801 R809 Q800 C836 IC701 R700 R816 D800 R803 HP700 Q805 SW700 SW701 R833 DOWN R830 D805 R704 Q806 Q804 C755 L705 R611 C756 R824 R825 IC700 R726 C642 C760 R730 R845 R725 C630 D705 D707 C841 D803...

  • Page 10

    BOTTOM VIEW CDB2 CNB2 CFB2 VCC2-8 VR600 R615 GND1 C741 C734 C740 VR800 GND2 D700 D701 C603 IC600 C761 C606 JK600 — 14 —...

  • Page 11: Wiring Diagram

    WIRING DIAGRAM TOP VIEWS A/D PCB Linear PCB — 15 —...

  • Page 12: Exploded View / Disassembly

    EXPLODED VIEW / DISASSEMBLY 12-2 12-1 15-3 15-1 15-2 6-10 — 16 —...

  • Page 13: Ic And Transistor Lead Identification

    IC AND TRANSISTOR LEAD IDENTIFICATION IC/LSI IC200 IC300 M51348FP M52042FP IF AGC OUT IF AGC ADJ VIDEO IF AGC IN SyOUT SY IN VCXO OUT RF AGC SyIN ACCF AGCDL AFTC SY OUT VCXO IN VCCv HDIN COLOR IFIN Y CLAMP TINT IFIN VIDEO...

  • Page 14

    IC700 MSM6625-02GSK-640F VSS2 TRANSISTORS 2SD1119 2SD601A 2SD965R 2SB709A 2SD1149-S 2SC4238 — 25 —...

  • Page 15: Schematic Diagrams And Waveforms

    SCHEMATIC DIAGRAMS AND WAVEFORMS LINEAR VHF(L) VHF(H) Pad IF — 26 —...

  • Page 16

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  • Page 17

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  • Page 18

    WAVEFORMS 63.5 µs 63.5 µs 63.5 µs 1 Q200 Collector 2 IC200 Pin 19 3 IC200 Pin 18 0.24 µs 63.5 µs 63.5 µs 4 IC300 Pin 23 5 IC300 Pins 10, 11, 12 6 IC300 Pin 5 63.5 µs 63.5 µs 5.2 µs 7 IC300 Pin 4...

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