Casio QV-70C Service Manual And Parts List
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Casio QV-70C Service Manual And Parts List

Casio QV-70C Service Manual And Parts List

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QV-70B
QV-70C
(KX-770)
OCT. 1997
(without price)
(NTSC)
(PAL)
R

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Summary of Contents for Casio QV-70C

  • Page 1 (without price) QV-70B (NTSC) QV-70C (PAL) (KX-770) OCT. 1997...

  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS ..................1 BLOCK DIAGRAM ..................2 COLOR ADJUSTMENT ................. 3 MEMORY RESTORING AND RESET ............4 DISASSEMBLY ..................... 6 ASSEMBLY ....................8 PRINTED CIRCUIT BOARDS ............... 9 EXPLODED VIEW ..................12 PARTS LIST ....................13 SCHEMATIC DIAGRAMS ................19 WAVEFORMS ....................

  • Page 3: Specifications

    SPECIFICATIONS Item Specification 1. Recording System Digital (JPEG based) 2. Video Signal System NTSC (QV-70B) / PAL (QV-70C) 3. Recording Medium Built-in 2-MB flash memory 4. Number of pages 5. Delete Functions Single page; All pages (with page protect feature) 6.

  • Page 4: Block Diagram

    BLOCK DIAGRAM Camera Unit Digital PCB IC701 HM538123BJ (NTSC) Lens HM538253BJ (PAL) converter 2M bit VRAM Video VRAM encoder controller Video out Data Linear PCB compressor converter IC300 expander IR3P90Y1 (NTSC) IC700 IR3Y21 (PAL) HG51B167FB Chroma circuit IC602 TC5816AFT-1 16M bit IC400 Flash memory MSM6770CGS...

  • Page 5: Color Adjustment

    COLOR ADJUSTMENT THE COLOR ADJUSTMENT IS REQUIRED AFTER THE FOLLOWING SITUATIONS * The flash memory is initialized by the "AMED-I" command. * The digital PCB or the camera unit is replaced. REQUIRED TOOL Light box: Handy 5000 (Code No.: 1904 5301) Color filter: LBA 3 (Code No.: 1904 5302) Color adjustment software: Sdj770vb.exe Cable for QV-Link...

  • Page 6: Memory Restoring And Reset

    MEMORY RESTORING AND RESET MEMORY ERROR "Memory error" (#1 ~ #3) message appears on QV-70 camera, when an error is found in its flash memory. In this case, the QV-70 is locked up and do not accept any operation except power on / off. MEMORY ERROR #1 When the memory error #1 occures, press the + button to do the error reset.
  • Page 7 Saving system block at bank 1FE as "sysblk.dat" Image No. 1 in 006 007 008 009 00A save as "image001.cam" Image No. 2 in 00B 00C 00D 00E 00F save as "image002.cam" Image No. 3 in 010 011 012 013 014 save as "image003.cam"...

  • Page 8: Disassembly

    DISASSEMBLY 1. Remove the four screws. Screw Screw Screws 2. Unhook the upper side of the unit, then open the case from the upper side. Hooks 3. Be sure not to lose the bright knob, then remove the case. Bright knob Linear PCB 4.
  • Page 9 Key PCB 6. Remove the key PCB and two screws on the digital PCB. Screws Digital PCB 7. Remove the two screws on the camera unit. Screws Camera unit Switch 8. Unhook the slide switches of the camera unit, then remove the digital PCB and the camera unit.

  • Page 10: Assembly

    ASSEMBLY The assembly can be done by reverse order of the disassembly steps. The notes of the assembly are as follows; 1. Be sure to set the spacer and sheets on the LCD as the figure. LCD spacer Dimmer sheet Diffuser sheet 2.

  • Page 11: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS LINEAR C405 R338 C404 R411 R316 C324 R320 C402 H300 R317 R321 LED2 C318 VR302 R333 C322 R319 R310 R308 R321 R309 C329 IC400 R335 C335 R334 C333 R337 R323 L300 C330 C331 R325 C305 C311 C304 R306 R305 C123...

  • Page 12: Top View

    DIGITAL (QV-70B) CN601 FU500 C543 C545 Q511 C540 T500 C542 IC602 C548 C546 C541 C622 R652 R653 C623 C650 RA603 C630 L540 IC600 RA600 RA601 D506 L622 L643 R520 L504 IC507 IC504 Q612 JK600 C517 L505 C518 C522 Top View L502 Q502 C544...
  • Page 13 DIGITAL (QV-70C) CN601 FU500 C543 C545 Q511 C540 T500 C542 IC602 C548 C546 C541 C622 R652 R653 C623 C650 RA603 C630 L540 IC600 RA600 RA601 D506 L622 L643 R520 L504 IC507 IC504 Q612 JK600 C517 L505 C518 C522 Top View...

  • Page 14: Exploded View

    EXPLODED VIEW 16-1 — 12 —...

  • Page 15: 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...
  • Page 16 DIGITAL PCB ASS'Y Item Code No. Parts Name Specification Applicable Diodes D500 2390 2268 DIODE MA727-(TX) Common D501 2360 1876 DIODE/ZENER MA8100-M(TX) Common D502 2390 1379 DIODE/SCHOTTKY MA729-(TX) Common D503 7101 1194 DIODE MA111-(TX) Common D505 2390 2261 DIODE MA720-(TX) Common D506 2390 1421...
  • Page 17 KEY PCB ASS'Y Item Code No. Parts Name Specification Applicable Switches SW900 3412 1421 SWITCH/SLIDE ESD165227 Common SW901 3412 1995 SWITCH SKQRAA-T Common SW902 3412 1995 SWITCH SKQRAA-T Common SW903 3412 1995 SWITCH SKQRAA-T Common SW904 3412 1995 SWITCH SKQRAA-T Common SW905 3412 1995...
  • Page 18 MAIN COMPONENT Item Code No. Parts Name Specification Applicable 6612 4210 PANEL/LOWER R340140-1 Common 6612 4280 TAPE/ADHESIVE R440277-1 Common 6612 4100 COVER/PROTECTOR R240098-1 Common 6612 4160 PROTECTOR/LENS R440232-1 Common 6612 4270 TAPE/ADHESIVE R440264-1 Common 6612 4040 PROTECTOR/FINDER R440220-1 Common 1014 9715 FINDER LF-010S Common...
  • Page 19 ACCESSORY Item Code No. Parts Name Specification Applicable 3851 2078 STRAP ST-K770 Common 1014 8773 CABLE/VIDEO VC-K723-FC Common 1014 9783 CASE/SOFT SC-770 Common Notes: Q – Quantity used per unit R – Rank — 17 —...

  • Page 20: Schematic Diagrams

    SCHEMATIC DIAGRAMS LINEAR (QV-70B) — 19 —...
  • Page 21 LINEAR (QV-70C) Display Controller Chroma IC Power Supply for LCD Power Supply for Back Light — 20 —...
  • Page 22 DIGITAL (QV-70B) Data Expander Data Compressor Video Encoder Flash Memory DRAM VRAM 18 V To Camera Unit –9.5 V — 21 —...
  • Page 23 DIGITAL (QV-70C) AK28F Data Expander Data Compressor Video Encoder Flash Memory DRAM VRAM 18 V To Camera Unit –9.5 V — 22 —...
  • Page 24 — 23 —...

  • Page 25: Waveforms

    WAVEFORMS QV-70B QV-70C 6.4 µsec 6 µsec 6.4 µsec 6.4 µsec 6 µsec 6.4 µsec 1 IC100 pin 5 2 Q100 collector 3 IC101 pin 5 1 IC100 pin 5 2 Q100 collector 3 IC101 pin 5 6 µsec 6 µsec 64 µsec...
  • Page 26 CASIO TECHNO CO.,LTD. 8-11-10, Nishi-Shinjuku Shinjuku-ku, Tokyo 160, Japan Telephone: 03-3347-4926...

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Qv-70b

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