Casio QV-10B Service Manual & Parts List
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Casio QV-10B Service Manual & Parts List

Casio QV-10B Service Manual & Parts List

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QV-10B
(KX-720B)
JUL. 1995
R

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Summary of Contents for Casio QV-10B

  • Page 1 (with price) QV-10B (KX-720B) JUL. 1995...

  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS ..................1 BLOCK DIAGRAM ..................2 CIRCUIT OPERATION .................. 3 ADJUSTMENT ..................... 13 DISASSEMBLY AND ASSEMBLY .............. 17 PRINTED CIRCUIT BOARDS ..............18 ELECTRICAL PARTS LIST................. 20 MECHANICAL PARTS LIST ............... 30 EXPLODED VIEW ..................31 PARTS LIST FOR ACCESSORIES ............. 32 REPAIR METHOD ..................

  • Page 3: Specifications

    SPECIFICATIONS Item Specification 1. Recording System Digital (JPEG based)/Field recording 2. Signal System NTSC 3. Recording Medium Built-in 16-Mbit flash memory 4. Number of pages 5. Delete Functions Single page; All pages (with page protect feature) 6. Imaging Device 1/5-inch CCD (Total Number of Pixels: 250,000) 7.

  • Page 4: Block Diagram

    BLOCK DIAGRAM Camera PCB Digital PCB Linear PCB V RAM IC300 HM53812BJ8 IR3P90Y Gate Array HG51B167FB IC400 MSM6770GS Flash Memory TC5816FT-1 VIDEO OUT (Video I/O) D RAM HM514B00 ALJ8 DIGITAL (Serial I/O) HD6477034F16 Power Supply Circuit DC IN (6V) AC adaptor Key PCB Battery x 4 1 Camera Unit: It is used to provide color information.

  • Page 5: Circuit Operation

    CIRCUIT OPERATIONS CAMERA UNIT (CAMERA PCB) The camera unit is composed a lens, color filter, CCD (IC802), driver (IC800) and signal processor (IC802). It produces voltages R, B, and G, for the colors red, blue, and green when light from a scene is focused on the surface. These voltage values vary according to the intensity of the respective color being scanned.
  • Page 6 3 CCD (IC802) A charge-coupled device in which charges are introduced when light from a scene is focused on the surface of the device. The image points are accessed sequentially to produce a television-type output signal. Effective picture element: 249,936 = 508 (H) x 492 (V) 532(H) 508(H) PHIS1~PHIS4:...
  • Page 7 96 images can be stored in flash memory. The color and the luminance data are mixed in the gate array to make the video signal. As to spare parts for digital PCB, Casio supplies PCB ass'y and the individual parts. — 5 —...
  • Page 8 1 CPU (IC600) Controls the CCD, D RAM, Flash memory and key operation. PA15 ~ PA0 CS3 ~ CS0, A21 ~ A16 Port A Address RAM1 PROM/MASKROM1 Reset, MD2 ~ MD0, EXTAL, XTAL A15 ~ A0 Direct memory access controller Interrupt User break Direct state controller...
  • Page 9 CPU PIN FUNCTION Pin No. Terminal Name IN/OUT Function PB14 OUT Timing pattern output. PB15 Not used. Ground terminal. 4 - 11 AD0 - AD7 IN/OUT Address bus. Ground terminal. 13 - 14 AD8 - AD9 Not used. Power source. 16 - 21 AD10 - AD15 Not used.
  • Page 10 Pin No. Terminal Name IN/OUT Function 85, 86 AVCC, AVREF Connected to VCC3. 87 - 89 PC0 - PC2 Key input terminal. Low battery detection terminal. AVSS Ground terminal. 92 - 95 PC4 - PC7 Not used. Power source. 97, 98 PB0, PB1 IN/OUT Port B.
  • Page 11 3 V RAM It is used for encoder function. 4 Flash Memory Up to 96 images can be stored in memory. Flash memory does not require electrical power to store data, so image data is retained in memory even when you turn camera power off. If batteries go dead, simply load a set of new batteries or connect the AC adaptor and you will be able to view images in camera memory.
  • Page 12 LINEAR PCB IC300 generates the tricolor (red, green and blue) from the video signal, and IC400 controls the TFT-LCD display. Power Supply Terminal Voltage Purpose VCC2 4.3 ~ 4.7 (V) Logic circuit VCC4 9.5 ~ 11.0 (V) Display VEE2 -7.0 ~ -8.0 (V) Display VEE4 -16.5 ~ -17.9 (V) Display...
  • Page 13 IC400 Key control 39 AFTO 46 VREF 45 U1 Analog control 44 VH1 5.9MHz control 43 VL1 Clock Mode control 41 OUT Horizontal control Mode Tuning program Control control VMUTEB VTUCK POCL 34 SW Channel Tuning Up/Down VBAR bar control CK2 Initial counter UBAR...
  • Page 14 TFT-LCD Selective period Source electrode Gate electrode Gate Frame period pulse Picture element A t1 t2 t3 Common substrate TFT array substrate Picture Common element electrode V COM Each picture element electrode is controlled by a transistor. To the gate electrodes, the gate pulse is applied timesharing.

  • Page 15: Adjustment

    ADJUSTMENT LINEAR PCB Items to Be Adjusted Item Measuring Instrument VCC2 voltage setting Voltmeter, Regulated power supply VBL voltage setting Voltmeter, Regulated power supply Vcom adjustment Patern generator, Oscilloscope, Regulated power supply, Photo sensor amp., Band pass filter Free-running Frequency Pattern generator, Oscilloscope, Regulated power supply adjustment Bright and Contrast adjustment...
  • Page 16 Equipment Connection / Adjustment Procedure VCC2 Voltage Setting Regulated QV-10 power supply Voltmeter Input Output DC Jack CP108 5.0 ± 0.05 V Input Input Input Output Output Adjust Result Connection Point Signal Connection Point Adjust for 4.50 ± 0.02 V VR100 Voltmeter CP108...
  • Page 17 Vcom Adjustment 1) While pressing the MODE and the shutter button, slide to the right to turn on power. 2) Press the self-timer and the DEL button at a time. 3) Press [+] or [–] to select the BLACK. 4) Press the shutter button. 5) Place a photo diode on the middle of the display.
  • Page 18 Bright and Contrast Adjustment Pattern QV-10 VCC2 generator Oscilloscope 10 K CP303 Input Output CP412 CP101 CP410 Trigger Input Input Input Output Output Adjust Result Connection Point Signal Connection Point Adjust VR304 until A in the above diagram equals 3.5 ± 0.1 V. Color bar VR304 Pattern...

  • Page 19: Disassembly And Assembly

    DISASSEMBLY AND ASSEMBLY Disassembly 1. Remove two screws L. 2. Remove two screws O. 3. Take the upper case 2 and the battery cover A. 4. Disconnect two connectors CN602 and CN603. 5. Remove two screws N. 6. Take out the camera unit J. Assembly Assembly of the QV-10 can be performed in the reverse order of the disassembly steps.

  • Page 20: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS LINEAR C311 C310 VR301 C312 L300 H300 C121 C307 C123 C321 C318 R316 IC300 C303 D103 C322 C301 R318 C125 C300 R319 R301 T100 C333 R421 R110 Q401 VR100 R320 R121 R111 R420 IC100 L401 C101 C144 C409 C150 D105...

  • Page 21: Top View

    DIGITAL CN601 C548 C731 L601 Q500 L500 L507 IC504 L501 R511 R510 C543 C517 C531 T500 C540 C730 IC505 C544 C545 R509 C523 R517 C546 C542 C541 R605 R606 Q610 IC701 IC601 Q611 CN600 Top View D506 Q612 L735 R614 L600 L540 L740...

  • Page 22: Electrical Parts List

    ELECTRICAL PARTS LIST Linear PCB ass'y No. 1 FOB Japan Item Code No. Parts Name Specification N.R.Yen Unit Price Capacitors C100 2845 5313 OS capacitor 10SL10M 1 10 C101 2845 5313 OS capacitor 10SL10M 1 10 C110 2897 1099 Chip capacitor GR39Y5V103Z50PT 1 20 C111...
  • Page 23 Linear PCB ass'y No. 2 FOB Japan Item Code No. Parts Name Specification N.R.Yen Unit Price C327 2897 1099 Chip capacitor GR39Y5V103Z50PT 1 20 C328 2897 1099 Chip capacitor GR39Y5V103Z50PT 1 20 C329 2897 1099 Chip capacitor GR39Y5V103Z50PT 1 20 C330 2897 1099 Chip capacitor...
  • Page 24 Linear PCB ass'y No. 3 FOB Japan Item Code No. Parts Name Specification N.R.Yen Unit Price Q150 2254 0385 Chip FET 2SK1764KYTR Q400 2251 0189 Chip transistor 2SB1218A-R(TX) 1 20 Q401 2251 0189 Chip transistor 2SB1218A-R(TX) 1 20 Resistors R100 2797 1855 Chip resistor ERJ-3GEYJ102V...
  • Page 25 Linear PCB ass'y No. 4 FOB Japan Item Code No. Parts Name Specification N.R.Yen Unit Price R408 2797 2429 Chip resistor ERJ-3GEYJ392V 1 20 R409 2797 1988 Chip resistor ERJ-3GEYJ183V 1 20 R410 2797 2443 Chip resistor ERJ-3GEYJ682V 1 20 R411 2797 3038 Chip resistor...
  • Page 26 Digital PCB ass'y No. 1 FOB Japan Item Code No. Parts Name Specification N.R.Yen Unit Price Capacitors C501 2897 1358 Chip capacitor GR39Y5V104Z25PT 1 20 C503 2845 4053 Chip capacitor 10N1HB152K-T1 1 20 C504 2897 1358 Chip capacitor GR39Y5V104Z25PT 1 20 C505 2897 1358 Chip capacitor...
  • Page 27 Digital PCB ass'y No. 2 FOB Japan Item Code No. Parts Name Specification N.R.Yen Unit Price C705 2845 4081 Chip capacitor 10N1HCH270J-T1 1 20 C706 2897 1358 Chip capacitor GR39Y5V104Z25PT 1 20 C707 2897 1358 Chip capacitor GR39Y5V104Z25PT 1 20 C708 2897 1358 Chip capacitor...
  • Page 28 Digital PCB ass'y No. 3 FOB Japan Item Code No. Parts Name Specification N.R.Yen Unit Price IC701 2011 9464 HM538123BJ8 IC702 7100 7567 L-MOS TC7S66FTE85L 1 10 IC703 2114 2093 Linear IC MM1031XMR Jacks JK600 3501 6538 Jack HSJ1169-012010 1 10 JK700 3501 5439 Jack...
  • Page 29 Digital PCB ass'y No. 4 FOB Japan Item Code No. Parts Name Specification N.R.Yen Unit Price L724 3045 0042 Chip bead BK1608HM601-T 1 20 L725 3045 0042 Chip bead BK1608HM601-T 1 20 L726 3045 0042 Chip bead BK1608HM601-T 1 20 L729 3045 0042 Chip bead...
  • Page 30 Digital PCB ass'y No. 5 FOB Japan Item Code No. Parts Name Specification N.R.Yen Unit Price R509 2797 1862 Chip resistor ERJ-3GEYJ473V 1 20 R510 2797 1862 Chip resistor ERJ-3GEYJ473V 1 20 R511 2797 1862 Chip resistor ERJ-3GEYJ473V 1 20 R512 2797 1862 Chip resistor...
  • Page 31 Key PCB ass'y FOB Japan Item Code No. Parts Name Specification N.R.Yen Unit Price Capacitor C900 2897 1358 Chip capacitor GR39Y5V104Z25PT 1 20 Diodes D900 2390 1470 Chip diode MA143A-(TX) 1 20 D901 2390 1470 Chip diode MA143A-(TX) 1 20 D902 2390 1470 Chip diode...

  • Page 32: Mechanical Parts List

    MECHANICAL PARTS LIST FOB Japan Item Code No. Parts Name Specification N.R.Yen Unit Price 6609 7380 Display plate A-K720 K411994-1 6609 7350 Upper case A-K720 K110736-1 6609 7370 Switch knob A-K720 K311503-1 1 20 6609 7360 Power knob A-K720 K311502-1 1 20 6610 2521 Rating plate BAA-K720...

  • Page 33: Exploded View

    EXPLODED VIEW 20-1-1 20-1 20-3 20-2 20-1-3 20-1-2 19-5 19-4 19-2 19-1 19-3 — 31 —...

  • Page 34: Parts List For Accessories

    PARTS LIST FOR ACCESSORIES QV-10 Macintosh QV-10 IBM-PC FOB Japan N I t e m Code No. Parts Name Specification N.R.Yen Unit Price 5860 8085 Wrist strap ST3-340A 6608 9210 Cleaning cloth A-K613 K412004-1 1014 7842 Video cable V-C1 1014 8017 AC adaptor for U.S.A. AD-C60U-(D) 1014 7835 Soft case SC-720...

  • Page 35: Repair Method

    Digital PCB, Linear PCB and Key PCB Casio supplies PCB ass'y and the individual parts. When you receive QV-10 for repair, replace PCB ass'y or the individual parts.

  • Page 36: Schematic Diagrams

    SCHEMATIC DIAGRAMS LINEAR — 35 —...
  • Page 37 DIGITAL — 36 —...
  • Page 38 — 37 —...

  • Page 39: Waveforms

    WAVEFORMS 6.4 µsec 6 µsec 6.4 µsec 1 IC100 pin 5 2 Q100 collector 3 IC101 pin 5 6 µsec 63.5 µsec 63.5 µsec 5 IC300 pin 10 6 IC300 pin 21 4 Q101 collector 63.5 µsec 63.5 µsec 125 µsec 7 IC300 pin 20 8 IC300 pin 39 9 IC300 pins 32, 34, 36...
  • Page 40 MA0900251A...

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Kx-720b

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