Casio QV-10A Fehlerbehebungshandbuch
R
QV-10A (C)(KX-723C)
APR. 1996
(without price)
(For PAL)
CONTENTS
SPECIFICATIONS ......................................................................................... 1
BLOCK DIAGRAM ........................................................................................ 2
CIRCUIT OPERATIONS ................................................................................ 3
COLOR ADJUSTMENT............................................................................... 13
ADJUSTMENT............................................................................................. 15
TROUBLESHOOTING................................................................................. 18
DISASSEMBLY ........................................................................................... 19
ASSEMBLY ................................................................................................. 20
PRINTED CIRCUIT BOARDS ..................................................................... 21
EXPLODED VIEW ....................................................................................... 23
PARTS LIST ................................................................................................ 24
SCHEMATIC DIAGRAMS ........................................................................... 31
WAVEFORMS.............................................................................................. 34
— 1 —
Item Specification
1. Recording System Digital (JPEG based)/Field recording
2. Video Signal System PAL
3. Recording Medium Built-in 16-Mbit 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/f = 5.2 mm
8. Aperture F2.8/F8 manual switching
9. Focal Length F2.8/NORMAL : 60 cm to 310 cm;
F2.8/MACRO : 13 cm to 16 cm
F8/NORMAL : 30 cm to y;
F8/MACRO : 11 cm to 21 cm
(from lens protection filter)
10. Light Metering TTL center point by photographic element
11. Exposure Metering Aperture priority AE
12. Exposure Range EV +5 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 batteries ×4)/AC Adaptor
21. Battery Life Approximately 120 minutes (Playback mode)
22. Dimensions 66(H) ×130(W) ×40(D)mm /
2.6" (H) ×9" (W) ×1.6" (D)
23. Weight Approximately 190 g / 6.7 oz (excluding batteries)
24. Accessories Wirst strap; soft case; special video cable;
Alkaline batteries (LR6 ×4); cleaning cloth
SPECIFICATIONS
— 2 —
CCD V RAM
HM53812BJ8
Gate Array
HG51B167FB
Flash
Memory
TC5816FT-1
D RAM
HM514B00
ALJ8
Power Supply
Circuit
DC IN (6V) Key
CPU
HD6477034F16
Key PCB
AC adaptor
Battery x 4
IC400
MSM6770GS
IC300
IR3P90Y
LCD
33
33 Linear PCB
1Camera Unit: It is used to provide color information.
2Digital PCB: It controls the CCD, compressed data, stores image in memory.
3Linear PCB: It generates the tricolor and controls the LCD display.
4LCD: 61,380-pixel 1.8-inch Thin Film Transistor low-glare color LCD.
5 VIDEO OUT(Video I/O): Use this terminal when connecting to the VIDEO IN terminal of
a TV, video tape deck, video printer, or other similar device.
6DIGITAL (SERIAL I/O): Use this terminal when connecting to a personal computer.
55
55 VIDEO OUT (Video I/O)
66
66 DIGITAL (Serial I/O)
11
11 Camera PCB 22
22 Digital PCB
BLOCK DIAGRAM
CPU
HD6437034F16
— 3 —
CAMERA UNIT (CAMERA PCB)
The camera unit is composed a lens, color filter, CCD (IC802), driver (IC800) and signal
processor (IC802). It produces voltages R, B, and G, for the colors red, blue, and green
when light from a scene is focused on the surface. These voltage values vary according
to the intensity of the respective color being scanned.
The camera unit must be replaced with whole unit when it is defective, because the precise
adjustment is required when the individual parts are replaced, and can be done only at our
factory.
2Color
Filter
Ye,Cy,Gr
color signal D0 ~ D7
IC800
Driver
VI1~ VI4
VS1 ~ VS4
PHI1~PHI4
PHS1~PHS4
MCK,
HRS2,
FTTRG,
STTRG,
CCODE,
ENDFLG
3IC802 (CCD)
Sample Hold,
AGC
CCD IN 8bit A/D
Converter
Timing
Generator
4IC801
CPU
Data Bus
D RAM
1Lens
Concentrates light rays to a point.
2Color filter
The striped color filter in front of the CCD detector is used to provide color information.
It has three colors, yellow, green and cyan.
Array of color filter and signal processing (IC801) for camera are extremely close relationship.
Ye G Cy Ye G Cy
Ye G Cy Ye G Cy
Ye G Cy Ye G Cy
Ye G Cy Ye G Cy
Ye G Cy Ye G Cy
Array of color filter
Red
Blue
Green
White
Mg=Blue+RedYe=Red+Green
Cy=Blue+Green
Mg
Ye
Cy
Three Primary colors
1Lens
Digital PCB
1 2 3 ~ 506 507 508
Camera PCB
CIRCUIT OPERATIONS
— 4 —
4Camera Signal Processor (IC801)
3CCD (IC802)
A charge-coupled device in which charges are introduced when light from a scene is focused on the surface
of the device. The image points are accessed sequentially to produce a television-type output signal.
Image pickup
Storage
Horizontal shift
register (CCD)
508(H)
532(H)
500(V)
492(V)
Output
Amp.
PHIH1
PHIH2
PHIS4
PHIS2
PHIS1
PHIS3
PHI4
PHI3
PHI2
PHI1
VOG
VGG
VDD 8
Vout 9
PHIR 7
3
4
5
6
19
18
17
16
14 15
12 13
Effective picture element:
249,936 = 508 (H) x 492 (V)
PHIS1 ~ PHIS4:
Clock pulse for the storage.
PHI1 ~ PHI4:
Clock pulse for the image pickup.
PHIH1 ~ PHIH2:
Clock pulse for the horizontal shift
register.
PHIR:
CCD analog signal output.
D0 ~ D7:
Digital signal of the luminance and the
color difference B-Y and R-Y signal.
CCD IN:
CCD analog signal input.
VI1 ~ VI4/VS1 ~ VS4:
Clock pulse for the CCD control sig-
nal.
Sample Hold,
AGC
From CCD
8bit A/D
Converter
Timing
Generator
D0~D7
to CCD From/to CPU
Sample Hold
Selects a desired signal from the CCD.
Timing Genarator
Generates the clock pulse for the CCD.
8-bit AD converter
Analog signal from the CCD is converted into 8-bit digital signal of the luminance and the color difference
B-Y and R-Y signal. .
— 5 —
DIGITAL PCB
DIGITAL PCB
Key Input
TFT LCD
DC in +6V
Battery
ROM RAM
DMAC
BSC
SCI, Timmer
I/O Port
CPU
16M Flash Memory
4M D RAM
5IC601
Power Supply
+5V +18V -10V
Linear
PCB
IC300
Chroma
Circuit
IC400
Display
Control
Driver
IC802
CCD
Camera PCB
DIGITAL (Serial I/O)
IC801
IC800 Processor
D/A
2IC700 Gate Array
1M
V RAM
1IC600 Microprocessor
Control
Timing V RAM
Control
Encoder
VIDEO OUTPUT
(Video I/O)
Amp.
Data
Compre-
ssor
3IC701
4IC602
6
Digital PCB is composed Microprocessor (IC600), D RAM (IC601), Flash Memory (IC602), Gate Array (IC700),
and V RAM (IC701).
Microprocessor controls the CCD, D RAM, Flash Memory and key operation. Gate array compresses data
for the color and the luminance from the CCD to increase the number of memory, and up to 96 images can
be stored in flash memory. The color and the luminance data are mixed in the gate array to make the video
signal.
As to spare parts for digital PCB, Casio supplies PCB ass'y and the individual parts.
— 6 —
Address Data/Address
PROM/MASKROM1 RAM1
CPU
Interrupt
controller User break
controller Direct state controller
Direct memory
access
controller
Serial communication
interface (x2channel) 16-bit integrated
timer pulse unit
Programmable timing
pattern controller A/D
converter Timer
Port B
Port A Address
Port C
A15 ~ A0
AD15 ~ AD0
CS3 ~ CS0, A21 ~ A16PA15 ~ PA0
PC7 ~ PC0 PB0 ~ PB15
Reset,
MD2 ~
MD0,
EXTAL,
XTAL
Address bus 24-bit
Data bus 16-bit
Address bus 24-bit
High-order 8-bit
Low-order 8-bit
CK
1CPU (IC600)
Controls the CCD, D RAM, Flash memory and key operation.
Address
Data / Address
— 7 —
CPU PIN FUNCTION
Pin No. Terminal Name IN/OUT Function
1 PB14 OUT Timing pattern output.
2 PB15 — Not used.
3 VSS IN Ground terminal.
4 - 11 AD0 - AD7 IN/OUT Address bus.
12 VSS IN Ground terminal.
13 - 14 AD8 - AD9 — Not used.
15 VCC IN Power source.
16 - 21 AD10 - AD15 — Not used.
22 VSS IN Ground terminal.
23 - 30 A0 - A7 OUT Address bus.
31 VSS IN Ground terminal.
32 - 33 A8, A9 OUT Address bus.
34 - 39 A10 - A15 — Not used.
40 VSS IN Ground terminal.
41, 42 A16, A17 — Not used.
43 VCC IN Power source.
44 - 47 A18 - A21 — Not used.
48 - 50 CS0 - CS2 — Not used.
51 CASL OUT CAS(Column Address Strobe) signal for D RAM.
52 VSS IN Ground terminal.
53 PAO — Not used.
54 RAS OUT RAS(Row Address Strobe) signal for D RAM.
55 CS6 OUT Chip select signal.
56 WAIT — Not used.
57 WR OUT Write enable signal for outer memory (low-order 8-bit).
58 PA5 OUT Write enable signal for outer memory (high-order 8-bit).
59 RD OUT Read enable signal for outer memory.
60 PA7 — Not used.
61 VSS IN Ground terminal.
62 PA8 IN Bus request signal.
63 PA9 OUT Interrupt request signal.
64 - 66 PA10 - PA12 — Not used.
67 DREQ0 IN Interrupt request signal.
68 IRQ2 IN Interrupt request signal.
69 PA15 IN Interrupt request signal.
70 VCC IN Power source.
71 CK OUT System clock pulse.
72 VSS IN Ground terminal.
73 EXTAL IN Clock pulse input.
74 XTAL — Not used.
75 - 77 VCC, NMI, VPP IN Power source.
78 WDTOVF — Not used.
79 RES IN Reset signal input.
80 MD0 IN Ground terminal.
81 MD1 IN Connected to VCC3.
82 MD2 IN Connected to ground.
— 8 —
2Gate Array (IC700)
Control
Timing
Data
Compressor
V RAM
Control
Encoder
D/A
V RAM
Data Compressor
The color difference and the luminance data is compressed about 1/7 to increase the numer of images
in memory. Up to 96 images can be stored.
Y (luminance siganal) data : 480 x 224 byte
Cb (color difference signal B-Y) data : 160 x 112 byte 21,120 byte
Cr (color difference signal R-Y) data : 160 x 112 byte 1/7
Total : 143,360 byte 21,120 byte
Encoder
The color and the luminance data are mixed internally to make the video signal, and send it to the linear
PCB and the video out terminal.
Pin No. Terminal Name IN/OUT Function
83, 84 VCC IN Power source.
85, 86 AVCC, AVREF IN Connected to VCC3.
87 - 89 PC0 - PC2 IN Key input terminal.
90 PC3 IN Low battery detection terminal.
91 AVSS IN Ground terminal.
92 - 95 PC4 - PC7 — Not used.
96 VSS IN Power source.
97, 98 PB0, PB1 IN/OUT Port B.
99 VCC IN Power source.
100 - 105 PB2 - PB7 IN/OUT Port B.
106 VSS IN Ground terminal.
107 RXDO IN Data input terminal from a personal computer.
108 TXDO OUT Data output terminal to a personal computer.
109, 110 PB10, PB11 IN/OUT Port B.
111 PB12 — Not used.
112 PB13 — Not used.
Dieses Handbuch passt für folgende Modelle
2
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