Service Manuals, User Guides, Schematic Diagrams or docs for : Casio Cameras CASIO_QV_780B

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                             (without price)




        QV-780B
        (KX-776B/NTSC)

          APR. 1999




INDEX
                         R
                                                                 CONTENTS

SPECIFICATIONS ......................................................................................................................................1
WIRING AND BLOCK DIAGRAM .............................................................................................................. 3
POWER SUPPLY CIRCUIT OPERATION .................................................................................................. 4
ADJUSTMENT ...........................................................................................................................................5
1. Unit Adjustment ....................................................................................................................................5
   1-1. Color parameters loading ............................................................................................................5
   1-2. Scratch compensation .................................................................................................................6
   1-3. Flash adjustment .......................................................................................................................... 6
   1-4. Flash check ................................................................................................................................... 7
   1-5. Current consumption ...................................................................................................................8
   1-6. Clock reset ....................................................................................................................................8
   1-7. Other test modes .......................................................................................................................... 9
2. PCB K772-DA Adjustment ....................................................................................................................9
   2-1. VCC1, VCC3 voltage check ........................................................................................................ 10
   2-2. VCC7, VEE3 adjustment ............................................................................................................. 10
   2-3. Clock oscillation check .............................................................................................................. 10
3. PCB K772-L Adjustment ..................................................................................................................... 11
   3-1. VCC1 adjustment and VCC2, VCC6, VEE2, VCC0 voltage check ........................................... 12
   3-2. VCO free run frequency adjustment ......................................................................................... 12
   3-3. Backlight drive voltage adjustment .......................................................................................... 12
   3-4. VCOM AC adjustment and VCOM DC coarse adjustment....................................................... 13
   3-5. Brightness voltage setting and contrast adjustment .............................................................. 13
   3-6. Color adjustment ........................................................................................................................ 14
   3-7. TINT adjustment .......................................................................................................................... 14
   3-8. VCOM DC adjustment .................................................................................................................15
DISASSEMBLY ........................................................................................................................................ 16
PRINTED CIRCUIT BOARDS ..................................................................................................................22
TROUBLESHOOTING ............................................................................................................................. 26
EXPLODED VIEW ....................................................................................................................................28
PARTS LIST ............................................................................................................................................. 30
SCHEMETIC DIAGRAMS ........................................................................................................................ 36
                                   SPECIFICATIONS
                         Item Specification
Recording System         Digital (JPEG base); PC Link software can be used to input images in CAM,
                         JPEG, TIFF and other format.
Recording Medium         Memory card (2MB card included)
Memory Capacity          FINE: 14 images (Minimum) (133KB compressed)
(2MB Card)/              NORMAL: 26 images (Minimum) (70KB compressed)
Computer Output image    ECONOMY: 47 images (Minimum) (38KB compressed)
                         The above figures are approximations only. The actual number of images
                         depends on image subject matter.
Image Element            1/4-inch CCD (350,000 pixels)
Computer Output image    640 x 480 pixels
Lens                     Fixed focal point with macro position; F2, f = 3.94mm
Aperture                 F2, F8 switching/fixed
Focus Range              NORMAL: 0.7m to 
                         MACRO: 14cm to 16cm (From surface of protective lens.)
Light Metering           TTL center priority by CCD
Exposure Metering        Program AE
Exposure Range           EV +5 to 18
Exposure Correction      

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