CASIO QV70B, QV-70C Service Manual
(without price)
QV-70B(NTSC)
QV-70C(PAL)
(KX-770)
OCT. 1997
DEL |
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DISP
MODE
ON/OFFPOWER
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+
REC
PLAY
LCD ON/OFF
R
CONTENTS
SPECIFICATIONS ......................................................................................... |
1 |
BLOCK DIAGRAM ........................................................................................ |
2 |
COLOR ADJUSTMENT ................................................................................. |
3 |
MEMORY RESTORING AND RESET ........................................................... |
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DISASSEMBLY ............................................................................................. |
6 |
ASSEMBLY ................................................................................................... |
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PRINTED CIRCUIT BOARDS ....................................................................... |
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EXPLODED VIEW ....................................................................................... |
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PARTS LIST ................................................................................................ |
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SCHEMATIC DIAGRAMS ........................................................................... |
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WAVEFORMS .............................................................................................. |
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SPECIFICATIONS |
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Item |
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Specification |
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1. |
Recording System |
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Digital (JPEG based) |
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2. |
Video Signal System |
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NTSC (QV-70B) / PAL (QV-70C) |
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3. |
Recording Medium |
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Built-in 2-MB flash memory |
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4. |
Number of pages |
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96 |
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5. |
Delete Functions |
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Single page; All pages (with page protect feature) |
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6. |
Imaging Device |
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1/5-inch CCD (Total Number of Pixels: 250,000) |
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7. |
Lens |
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Fixed focus with macro position; F2.8/f = 5.2 mm |
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8. |
Aperture |
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F2.8/F8 manual switching |
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9. |
Focal Length |
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F2.8/NORMAL : 0.6 m to 3.0 m |
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F2.8/MACRO : 12 cm to 14 cm |
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F8/NORMAL : 0.4 m to ~ |
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F8/MACRO : 10 cm to 18 cm |
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(from lens protection filter) |
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10. |
Light Metering |
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TTL center point by photographic element |
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11. |
Exposure Metering |
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Aperture priority AE |
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12. |
Exposure Range |
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EV +6 to 18 |
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Exposure Adjustment |
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–2 EV to +2 EV |
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14. |
Shutter System |
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Electronic |
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15. |
Shutter Speed |
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1/8 to 1/4000 second |
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16. |
White Balance |
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Automatic |
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17. |
Self-timer |
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10-second |
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18. |
Monitor |
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61,380-pixel 1.8-inch TFT low-glare color LCD |
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19. |
Terminals |
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DIGITAL; VIDEO OUT; DC IN 6 V |
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20. |
Power Supply |
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Batteries (AA-size Alkaline or lithium batteries × 3) /AC Adaptor |
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21. |
Current Consumption |
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Approximately 550 mA (REC mode) |
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22. |
Dimensions |
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66(H) × 103(W) × 34(D)mm |
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23. |
Weight Approximately |
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150 g (excluding batteries) |
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24. |
Accessories |
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Wirst strap; soft case; video cable; |
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Alkaline batteries (LR6 × 3) |
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— 1 —
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BLOCK DIAGRAM |
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Camera Unit |
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Digital PCB |
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IC701 |
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Lens CDD |
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A/D |
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HM538123BJ (NTSC) |
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HM538253BJ (PAL) |
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converter |
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2M bit VRAM |
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VRAM |
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Video |
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controller |
encoder |
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Data |
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D/A |
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compressor |
converter |
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expander |
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IC700 |
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IC602 |
HG51B167FB |
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TC5816AFT-1 |
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16M bit |
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Flash memory |
ROM |
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Direct |
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memory |
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access |
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RAM |
controller |
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IC601 |
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Bus |
Power |
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CPU |
state |
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HM514800CLJ |
supply |
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controller |
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2M bit DRAM |
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I/O |
Serial |
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communication |
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port |
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interface |
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IC600 |
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HD6437034SK24F (NTSC) |
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HD6437034AK28F (PAL) |
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Digital I/O
Video out |
Linear PCB |
IC300
IR3P90Y1 (NTSC)
IR3Y21 (PAL)
Chroma circuit
IC400
MSM6770CGS
Display controller
Power supply
Back
light LCD
AC Adaptor
Battery
Key PCB
— 2 —
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.
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* COLOR ADJUSTMENT for KX770 * * ver 1.0 *
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CAUTION!!! Set f-stop to F8, otherwise doesn't work correctly. Now adjusting... 0 2
done.
System block |
1FE |
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ASUM |
4AB40 |
CSUM |
35662 |
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DSUM |
2EA67 |
ESUM |
558FF |
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RKD FE30 |
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RKE |
1D0 |
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BKA 1F0 |
BKC FE10 |
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GKC |
200 |
GKD |
100 GKE FF00 |
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ALPHA FFFC |
BETA FF82 |
TINT 155 |
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RAlimit_L |
BBB |
RAlimit_H |
FE0 |
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BAlimit_L |
1298 |
BAlimit_H |
1ECE |
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COL_BAS 28 |
Y_OFFSET 2 |
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RAMP_INIT DCD |
BAMP_INIT 18B3 |
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LIN_SUB 108 |
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LIN_SUBY F8 |
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Color filter: LBA 3
Light box: Handy 5000 |
QV-70 |
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— 3 —
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 |
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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"
— 4 —
Saving system block at bank 1FE as "sysblk.dat"
Image No. 1 |
in 006 007 008 009 |
00A |
save as "image001.cam" |
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Image No. 2 |
in |
00B 00C 00D 00E 00F |
save as "image002.cam" |
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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)
— 5 —
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 |
4.Remove the two screws on the linear PCB, then disconnect between the linear and digital PCBs.
Digital PCB
5.Disconnect the wire for the back light and the flat cable for the LCD, then remove the linear PCB.
Linear PCB
Screws
Flat cable
Wire
— 6 —
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