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QV-200B
QV-200C
(KX-775)
AUG. 1997
(NTSC)
(PAL)
R E C
P L A
Y
R
(without price)

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Summary of Contents for Casio QV-200B

  • Page 1 (without price) QV-200B (NTSC) QV-200C (PAL) (KX-775) AUG. 1997 R E C P L A...
  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS ..................1 BLOCK DIAGRAM ..................2 FLOW DIAGRAM ................... 3 POWER SUPPLY CIRCUIT OPERATION ............ 5 MEMORY RESET AND COLOR ADJUSTMENT .......... 8 TROUBLESHOOTING ................. 11 DISASSEMBLY ................... 12 PRINTED CIRCUIT BOARDS ..............14 EXPLODED VIEW ..................16 PARTS LIST ....................
  • Page 3: Specifications

    SPECIFICATIONS Item Specification 1. Recording System Digital (JPEG based)/Field recording 2. Video Signal System NTSC (QV-200B)/PAL (QV-200C) 3. Recording Medium Built-in 4-Mbyte flash memory 4. Number of pages FINE (VGA) : 64 (approximately 480-kbit compressed) NORMAL (Quarter-VGA) : 192 (approximately 160-kbit compressed) 5.
  • Page 4: Block Diagram

    BLOCK DIAGRAM Camera Unit Digital PCB IC702 IC701 µPD6461GS µPD482445LGW Lens On screen converter 4M bit VRAM display Video VRAM encoder controller IC703 LC99092-Z98 8 bit to 16 bit Video out converter converter Color processor Data Linear PCB compressor IC300 expander IC700 IR3P90Y1 (NTSC)
  • Page 5: Flow Diagram

    FLOW DIAGRAM REC mode IC703 IC700 Converter LC99092-Z98 HG51D291FE Camera Unit IC701 µPD482445LGW IC602 KM29V32000T IC600 HD6437042Y04F IC601 HM51W4260 Digital PCB 1 Exposure and Analog to Digital conversion by Camera unit 2 8 to 16 bits conversion by IC703 3 Storage for work 4 Color processing by IC703: Ye,Cy, Gr →...
  • Page 6 1 Exposure and Analog to Digital conversion by Camera unit 2 8 to 16 bits conversion by IC703 3 Storage for work 4 Color processing by IC703: Ye, Cy, Gr → Y, By, Ry 5 Storage for work 6 Compression by IC700 7 Storage for work 8 Storage to Flash memory PLAY mode...
  • Page 7: Power Supply Circuit Operation

    POWER SUPPLY CIRCUIT OPERATION 2 APO from Pin 42 of IC600 VCC1 R515 Q514 IC507 FU500 R516 C523 C548 C531 6 Voltage detection signal VCC1 VCC1 VCC3-1 R623 IC506 C520 3 POB to Pin102 Q503 of IC600 R511 R512 CN601 Q513 R513 KEY0...
  • Page 8 Operation IC505 NAND gate IC506 Flip-flop IC507 Voltage detector Pin 2 (VDD) Pin 1 (OUT) > 3.2 V < 3.2 V Time Chart Power on Power off H (VCC1) H (VCC1) 1. PON 1. PON 2. APO 2. APO H (VCC3) H (VCC3) 3.
  • Page 9 Power off by APO Power off by low voltage detection H (VCC1) H (VCC1) 1. PON 1. PON H (VCC3) 2. APO 2. APO H (VCC3) H (VCC3) 3. POB 3. POB 4. FACT 4. FACT H (VCC1) H (VCC1) 5.
  • Page 10: Memory Reset And Color Adjustment

    MEMORY RESET AND COLOR ADJUSTMENT When the repairing or the following problems occured on QV-200, make the memory reset and the color adjustment as shown below. A) After replacement of Digital PCB or Camera unit B) Memory error C) No display caused by Memory error D) Color tone problem MEMORY ERROR "Memory error"...
  • Page 11 NO DISPLAY CAUSED BY MEMORY ERROR No display problem sometimes occures by memory error, however it is easy to confuse it with the problem caused no power. To distinguish them, execute the test mode of the QV-200. * If the memory error causes no display, only the "TEST MODE" message is appeared on the LCD in the test mode.
  • Page 12 Be sure to check if the sensitivity value is in 53 ~ 59. If the value is out of the limites, check the following matters; Batteries voltage Setting of QV-200 Filter 7. Put the Color temperature filter LA-120 (Orange) on the ND filter ND-50 (Grey), and put the lens of the QV-200 on the LA-120 , then enter "...
  • Page 13: Troubleshooting

    TROUBLESHOOTING No Display 1. Check the fuse (FU500) on the digital PCB. 2. Check the fuse (FU100) on the linear PCB. 3. Check the jack (JK500) on the digital PCB. 4. Check the power switch (SW900) on the key PCB. 5.
  • Page 14: Disassembly

    DISASSEMBLY To disassemble the main unit 1. Open the battery cover, then unhook and remove the grip. Hook Grip 2. Remove the screw. Screw 3. Rotate the camera unit then remove the two screws on the side of the unit. Screw Screw 4.
  • Page 15 5. Remove the battery cover and the upper case at the bottom of the unit. 6. Remove the upper case at the top of the unit. Push the " " part strongly and then open the upper case as shown in the right figure. Hook Hook To disassemble the camera unit...
  • Page 16: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS LINEAR C337 R335 C310 R334 C311 C121 R304 L300 C312 C308 VR301 C307 H300 C123 C316 C305 IC300 C303 C300 R317 D103 C302 R319 C125 C301 R301 T100 R110 R300 C325 C339 VR100 C333 R121 R111 R330 IC100 L303 R430...
  • Page 17: Top View

    DIGITAL R519 CN604 JK600 CN601 L540 L514 JK700 JK500 L704 L643 L512 L502 IC605 C548 C537 C540 C731 IC703 C543 L509 R541 C547 R625 Q508 C500 R626 C730 C542 C544 C625 C629 C611 L641 C541 C546 C551 C523 R515 R635 R605 R606 R509...
  • Page 18: Exploded View

    EXPLODED VIEW 29-1 29-1-2 29-1-1 28-1 17-2 17-1 17-3 13-1 — 16 —...
  • Page 19: Parts List

    PARTS LIST LINEAR PCB ASS'Y Item Code No. Parts Name Specification Applicable Diodes D101 7101 1194 DIODE MA111-(TX) Common D102 2390 1379 DIODE/SCHOTTKY MA729-(TX) Common D103 2390 1379 DIODE/SCHOTTKY MA729-(TX) Common D104 7101 1194 DIODE MA111-(TX) Common D105 2390 1379 DIODE/SCHOTTKY MA729-(TX) Common D106...
  • Page 20 DIGITAL PCB ASS'Y Item Code No. Parts Name Specification Applicable Diodes D500 2390 2268 DIODE MA727-(TX) Common D501 2390 1379 DIODE/SCHOTTKY MA729-(TX) Common D502 2390 1379 DIODE/SCHOTTKY MA729-(TX) Common D504 2390 2261 DIODE MA720-(TX) Common D505 2390 2261 DIODE MA720-(TX) Common D506 2390 1421 DIODE/SCHOTTKY...
  • Page 21 Item Code No. Parts Name Specification Applicable Q513 7911 0126 TRANSISTOR/DIGITAL DTC144EUAT106 Common Q514 7911 0126 TRANSISTOR/DIGITAL DTC144EUAT106 Common Q609 7911 0126 TRANSISTOR/DIGITAL DTC144EUAT106 Common Q610 2259 2205 TRANSISTOR/DIGITAL DTA114EUAT106 Common Q611 7911 0126 TRANSISTOR/DIGITAL DTC144EUAT106 Common Q612 2254 0448 FET 2SK1580-T1 Common Q613...
  • Page 22 MAIN COMPONENT Item Code No. Parts Name Specification Applicable 6612 2370 DISPLAY FRAME R240096-1 Common 6612 2460 PLATE R440217-1 Common 6612 2380 REC/PLAY KNOB R340122-1 Common 6611 4410 SPRING R440045-1 Common 6612 2390 POWER SWITCH KNOB R340123-1 Common 6612 2400 UPPER CASE R140023-1 Common 6611 4390 TRIPOD HOLE...
  • Page 23 ACCESSORY I t e m Code No. Parts Name Specification Applicable 5861 3578 WRIST STRAP ST-K775 Common 6611 1290 CLEANING CLOTH CC-K724 Common 1014 8773 VIDEO CABLE VC-K723-FC Common 1014 9695 SOFT CASE SC-775 Common Notes: Q – Quantity used per unit R –...
  • Page 24: Schematic Diagrams

    SCHEMATIC DIAGRAMS LINEAR (QV-200B) Display Controller Chroma IC Power Supply for LCD Power Supply for Back Light — 22 —...
  • Page 25 LINEAR (QV-200C) Display Controller Chroma IC Power Supply for LCD Power Supply for Back Light — 23 —...
  • Page 26 DIGITAL (QV-200B) Data Expander Data Compressor Video Encoder Flash Memory 8 to 10 bits Converter Color processor DRAM On Screen Display 5 V Power Supply Circuit VRAM 20 V 3.5 V –10 V 20 V Power Supply Circuit 3.5 V Power Supply Circuit –10 V Power Supply Circuit...
  • Page 27 DIGITAL (QV-200C) Data Expander Data Compressor Video Encoder Flash Memory 8 to 10 bits Converter Color processor DRAM On Screen Display 5 V Power Supply Circuit VRAM 20 V 3.5 V –10 V 20 V Power Supply Circuit 3.5 V Power Supply Circuit –10 V Power Supply Circuit —...
  • Page 28 — 26 —...
  • Page 29: Waveforms

    WAVEFORMS QV-200B 4 µsec 4 µsec 4 µsec 1 IC100 pin 5 2 Q100 collector 3 IC101 pin 5 63.5 µsec 4 µsec 63.5 µsec 5 IC300 pin 10 6 IC300 pin 20 4 Q101 collector 63.5 µsec 63.5 µsec 125 µsec...
  • Page 30 QV-200C 4 µsec 4 µsec 4 µsec 1 IC100 pin 5 2 Q100 collector 3 IC101 pin 5 64 µsec 4 µsec 64 µsec 5 IC300 pin 10 6 IC300 pin 20 4 Q101 collector 64 µsec 64 µsec 125 µsec 7 IC300 pin 21 8 IC300 pin 39 9 IC300 pin 36...
  • Page 31 MA1000771A...

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Qv-200c

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