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R
QV-300 (C) (KX-727C)
JAN. 1997
(without price)
(For PAL)


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CONTENTS
SPECIFICATIONS ......................................................................................... 1
BLOCK DIAGRAM ......................................................................................... 2
FLOW DIAGRAMS ........................................................................................ 3
POWER SUPPLY CIRCUIT OPERATION ..................................................... 5
TROUBLESHOOTING ................................................................................... 8
DISASSEMBLY .............................................................................................. 9
ASSEMBLY .................................................................................................. 11
PRINTED CIRCUIT BOARDS ...................................................................... 13
EXPLODED VIEW ........................................................................................ 15
PARTS LIST ................................................................................................. 16
SCHEMATIC DIAGRAMS ............................................................................ 23
WAVEFORMS .............................................................................................. 27


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-- 1 --
SPECIFICATIONS
Item
Specification
1. Recording System
Digital (JPEG based)
2. Signal System
PAL
3. Recording Medium
Built-in 32-Mbit flash memory
4. Number of Memory Pages
FINE(VGA)
: 64 (approximately 480-kbit compressed)
NORMAL(Quarter-VGA)
: 192 (approximately 160-kbit compressed)
5. Delete Functions
Single page; All pages (with page protect feature)
6. Imaging Device
1/4-inch CCD (Total Number of Pixels: 360,000)
7. Lens
2 focal points with macro position: F2.6 f=4.9 mm/f=11.0 mm
8. Aperture
F2.6/F8 manual switching
9. Focal Length
f=4.9 mm F2.6/NORMAL
: 0.6 m (2') ~
;
f=4.9 mm F2.6/MACRO
: 9 cm (3.5") ~ 11 cm (4.3")
f=4.9 mm F8/NORMAL
: 0.3 m (1') ~
;
f=4.9 mm F8/MACRO
: 7 cm (2.8") ~ 14 cm (5.5")
f=11.0 mm F2.6/NORMAL
: 3.4 m (11.2') ~
;
f=11.0 mm F2.6/MACRO
: 52 cm (1.7') ~ 62 cm (2')
f=11.0 mm F8/NORMAL
: 1.7 m (5.6') ~
;
f=11.0 mm F8/MACRO
: 44 cm (1.4') ~ 77 cm (2.5')
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. Resolution
FINE, NORMAL
19. Monitor
61,380-pixel 2.5-inch TFT low-glare color LCD: doubles as finder
20. PC Output Image
480
× 640 dots (FINE)
240
× 320 dots (NORMAL)
21. Terminals
DIGITAL; VIDEO OUT; DC IN 6 V
22. Power Supply
Batteries (AA-size Alkaline or Lithium batteries
× 4)/AC Adaptor
23. Battery Life
LR6 (AM3) AA-size alkaline batteries
Approximately 130 minutes continuous operation (Play mode)
Recording for about 96 images (one image per minute)
FR6 AA-size lithium batteries
Approximately 220 minutes continuous operation (Play mode)
Recording for about 180 images (one image per minute)
24. Dimensions
72 (H)
× 162 (W) × 49 (D) mm/
2.8" (H)
× 6.4" (W) × 1.9" (D)
25. Weight
Approximately 250 g / 8.8 oz (excluding batteries)
26. Accessories
Wrist strap; soft case; video cable; cleaning cloth


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-- 2 --
BLOCK DIAGRAM
Camera Unit
Digital PCB
Video
encoder
VRAM
controller
IC701
µPD482445LGW
4 Mbit VRAM
IC702
µPD6461GS
On screen
display
Data
compressor
expander
D/A
converter
CCD
IC602
KM29V32000T
32 Mbit
Flash memory
IC601
HM51W4260
4 Mbit DRAM
Lens
ROM
Direct
memory
access
controller
Bus
state
controller
Power
supply
Power
supply
IC300
IR3Y21
Chroma circuit
IC400
MSM6770CGS
Display controller
Back
light
LCD
Serial
communication
interface
RAM
CPU
I/O
port
IC600
HD6437042Y03F
IC700
HG51D291FE
Key PCB
Linear PCB
Video out
Digital I/O
AC Adaptor
Battery
A/D
converter
IC703
LC99092-Z03
8 bit to 16 bit
converter
Color processor


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-- 3 --
FLOW DIAGRAMS
REC mode
1 Exposure and Analog to Digital conversion by Camera unit
2 8 to 16 bits conversion by IC703
3 Storage for work
4 Color processing by IC703: Ye,Cy, Gr
Y, By, Ry
5 Storage for work
6, 7 Video encode by IC 700 and IC701: Y, By, Ry
Video
8 Video out
When pressing the shutter button
Camera Unit
IC703
LC99092-Z03
IC700
HG51D291FE
IC701
µPD482445LGW
IC602
KM29V32000T
IC601
HM51W4260
IC600
HD6437042Y03F
Digital PCB
1
2
3
4
5
6
7
8
CCD
A/D
Converter
IC703
LC99092-Z03
IC700
HG51D291FE
IC701
µPD482445LGW
IC602
KM29V32000T
IC601
HM51W4260
IC600
HD6437042Y03F
Digital PCB
2
3
4
5
6
7
8
Camera Unit
1
CCD
A/D
Converter