Casio QV-70C Fehlerbehebungshandbuch

QV-70B(NTSC)

QV-70C(PAL)

OCT. 1997

(without price)

(KX-770)

PLAY

LCD

ON/OFF

REC

POWER

/PROTECT ZOOM DISP

DEL

MODE

ON/OFF

–

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.............................................................................................. 24

— 1 —

SPECIFICATIONS

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 96

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. Lens Fixed focus with macro position; F2.8/f = 5.2 mm

8. Aperture F2.8/F8 manual switching

9. Focal Length F2.8/NORMAL : 0.6 m to 3.0 m

F2.8/MACRO : 12 cm to 14 cm

F8/NORMAL : 0.4 m to ~

F8/MACRO : 10 cm to 18 cm

(from lens protection filter)

10. Light Metering TTL center point by photographic element

11. Exposure Metering Aperture priority AE

12. Exposure Range EV +6 to 18

13. Exposure Adjustment –2 EV to +2 EV

14. Shutter System Electronic

15. Shutter Speed 1/8 to 1/4000 second

16. White Balance Automatic

17. Self-timer 10-second

18. Monitor 61,380-pixel 1.8-inch TFT low-glare color LCD

19. Terminals DIGITAL; VIDEO OUT; DC IN 6 V

20. Power Supply Batteries (AA-size Alkaline or lithium batteries ×3) /AC Adaptor

21. Current Consumption Approximately 550 mA (REC mode)

22. Dimensions 66(H) ×103(W) ×34(D)mm

23. Weight Approximately 150 g (excluding batteries)

24. Accessories Wirst strap; soft case; video cable;

Alkaline batteries (LR6 ×3)

Item Specification

— 2 —

BLOCK DIAGRAM

Camera Unit Digital PCB

Linear PCB

Video out

Key PCB

Digital I/O

AC Adaptor

Battery

Lens CDD A/D

converter

IC602

TC5816AFT-1

16M bit

Flash memory

IC601

HM514800CLJ

2M bit DRAM

IC701

HM538123BJ (NTSC)

HM538253BJ (PAL)

2M bit VRAM

VRAM

controller Video

encoder

D/A

converter

IC700

HG51B167FB

Data

compressor

expander

Direct

memory

access

controller

Bus

state

controller

Serial

communication

interface

ROM

RAM

CPU

I/O

port

IC600

HD6437034SK24F (NTSC)

HD6437034AK28F (PAL)

Power

supply LCD

Back

light

Power

supply

IC300

IR3P90Y1 (NTSC)

IR3Y21 (PAL)

Chroma circuit

IC400

MSM6770CGS

Display controller

— 3 —

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

TO DO THE COLOR ADJUSTMENT

1. Connect QV-70 to PC with QV-Link cable.

2. Set the aperture switch of QV-70 to F8.

3. Put the color filter on the light box, and turn the light box on.

4. Put the QV-70 with its lens toward the color filter and light box, and turn the QV-70 on.

5. Execute the color adjustment software "Sdj770vb.exe" on PC (MS-DOS).

Type "Sdj770vb", then press Enter. The message "WAIT" appears on the QV-70 and some parameters

appear on the PC like as the followings.

SUMCODE = 835321

adjust for KX770.

*******************************************

* COLOR ADJUSTMENT for KX770 *

* ver 1.0 *

*******************************************

CAUTION!!! Set f-stop to F8, otherwise doesn't work correctly.

Now adjusting... 0 2

done.

System block 1FE

ASUM 4AB40 CSUM 35662

DSUM 2EA67 ESUM 558FF

RKD FE30 RKE 1D0

BKA 1F0 BKC FE10

GKC 200 GKD 100 GKE FF00

ALPHA FFFC BETA FF82 TINT 155

RAlimit_L BBB RAlimit_H FE0

BAlimit_L 1298 BAlimit_H 1ECE

COL_BAS 28 Y_OFFSET 2

RAMP_INIT DCD BAMP_INIT 18B3

LIN_SUB 108 LIN_SUBY F8

Color filter: LBA 3

Light box: Handy 5000 QV-70

— 4 —

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. The following display will be appeared on

QV-70.

ERROR RESET

YES SHUTTER

NO CALL TECH

SUPPORT!

Then press the shutter button. The display should return to normal.

(Refer to owner´s manual for QV-70.)

MEMORY ERROR #2, #3

When the memory error #2 or #3 occures, do the memory restoring.

Notes: 1. When do the error reset or memory restoring, use the AC adaptor.

2. Never turn the power off, while doing the error reset or memory restoring.

MEMORY RESTORING

REQUIRED TOOL

Memory restoring software: Amed.exe

Cable for QV-Link

OPERATION

1. Connect the QV-70 to PC with the cable.

2. Execute the "AMED -PIR" command on MS-DOS, then the following message will be appeared on the PC.

QV series Automatic Memory Error Debugger ver 2.0

Camera type = QV-10A/QV-30 0090:532E

Searching management block ...

Found at bank 1FF status --- OK

Saving management block as "mngblk.dat"

— 5 —

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"

--- Initialize Flash Memory

--- Create mamagement block at bank No.1FF

--- Reset

Restore system block at bank 1FE from "sysblk.dat"

Loading image "image001.cam"

Loading image "image002.cam"

Loading image "image003.cam"

3. The displays on the QV-70 are returned to normal.

When the memory error is not solved by the above steps, do the memory reset and color adjustment.

MEMORY RESET

1. Connect the QV-70 to PC with the cable.

2. Execute the "AMED -I" command on MS-DOS.

3. Do the color adjustment. (See COLOR ADJUSTMENT)

— 6 —

DISASSEMBLY

1. Remove the four screws.

2. Unhook the upper side of the unit, then open

the case from the upper side.

3. Be sure not to lose the bright knob, then remove the case.

4. Remove the two screws on the linear

PCB, then disconnect between the linear

and digital PCBs.

5. Disconnect the wire for the back light and the flat

cable for the LCD, then remove the linear PCB.

Screw

Hooks

Bright knob

Flat cable

Wire

Screws

Digital PCB

Linear PCB

Screw

Screws

— 7 —

6. Remove the key PCB and two screws on the digital PCB.

8. Unhook the slide switches of the camera unit, then remove

the digital PCB and the camera unit.

Digital PCB

Key PCB

Screws

7. Remove the two screws on the camera unit.

9. Remove the three screws, then remove the back light.

Note: Be sure not to lose the spacer.

Switch

Screws

Back light

Spacer for LED

Camera unit

Screws

— 8 —

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.

2. Be sure to align the switches on the camera unit with the switch knobs.

3. Be sure to align the slide switch on the key PCB with the switch knob for power. Switch knob

Slide switch

Switch knobs

Switches

Diffuser sheet

Dimmer sheet

LCD spacer

LCD

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