canon HV20 A TECHNICAL DESCRIPTION
HV20 A
TECHNICAL DESCRIPTION
1. Technical Description
1-1 HDMI Terminal
The HV20 A comes with an HMDI (High Definition Multimedia Interface) digital interface terminal for inputting and outputting the
next-generation video, audio and control signals. This is the interface which was developed for digital home appliances and audiovisual
equipment. Using a completely digital system, the HDMI terminal enables the transfer of the video, audio and inter-unit control signals
by means of an easily routable cable provided with small (19-pin) terminals.
When the HDMI terminal on the HV20 A is connected to another display unit, the information on the display unit’s capabilities referred
as the EDID (Extended Display Identification Data) is read by the HV20 A, and the unit’s output format is determined. What happens
next is that the video images and sound best suited to the display unit are transmitted from the HV20 A main unit. This means that there
is now no longer the need to set the TV display mode (normal or wide) to match the display unit to which the HV20 A is connected
something that would be necessary with other terminals.
The HV20 A does not support HDCP (High-Bandwidth Digital Content Protection) for protecting contents from being copied, the CEC
(Consumer Electronics Control) function for exercising reciprocal control between units or color space expansion.
In this way, the standard of the video images output from the HV20 A is determined by the capabilities of the display unit connected to
the HV20 A, and the table below shows the sequence of priority for the output of the HV20 A in terms of each of the display unit’s
capabilities.
Camera body Output 1080i 480i/576i 480i/576i 480P/576P 480P/576P
mode (16:9) (4:3) (16:9) (4:3)
HD 1 2 (*1) 4 (*1) 3 (*2) 5 (*2)
SD (wide) --- 1 3 2 (*3) 4 (*3)
SD (normal) --- 3 1 4 (*3) 2 (*3)
Print screen (HD) --- 1 (*1) 3 (*1) 2 (*2) 4 (*2)
(*1) : Down-conversion, (*2) : IP conversion after down-conversion, (*3) : IP conversion processing
The sound is delivered in one of the linear PCM (Pulse Code Modulation) output formats listed in the table below depending on the
mode of the HV20 A main unit.
Camera body mode Output
SD-12bit/32kHz-2ch/4ch 32kHz-16bit-2ch
SD-16bit/48kHz-2ch 48kHz-16bit-2ch
HD-48Hz-2ch/4ch 48kHz-16bit-2ch
Related specifications
1. When a receiver is connected to the HV20 A main unit using the HDMI terminal, the video output to the component/composite
terminals is forcibly shut down.
2. The audio signals to the AV terminal are output all the time if that terminal has been connected.
3. If a DVI monitor (for a PC) has been connected, RGB signals in the 480P format will be output, but no guarantees are made for
the connections or quality of the images displayed on the monitor.
4. During an HDMI connection, the “TV type” and “Component output” menu settings are grayed out and rendered inoperable.
5. When HDV/DV signals are input or the analog input mode is established, the HDMI output is forcibly shut down.
6. In both the SD and HD modes, the sound can be selected by setting “Audio output” as with the LINE OUT output when a 4channel tape is played back.
7. DVI signals will be output if the EDID of the unit connected to the HV20 A cannot be read, if the EDID which has been read has
been destroyed or if the output format cannot be determined for some other reason.
8. hen a copy-protected tape has been played back, the output signals of the HDMI terminal will be muted, and a warning will be
displayed.
Neither will signals be output to the HDMI terminal when a “copy-disabled” tape on which digital broadcasts have been
recorded with analog input signals is played back.
(At such times, the EVF/LCD will also be muted.)
9. Bilingual audio signals cannot be output to the HDMI terminal.
1
HV20 A
TECHNICAL DESCRIPTION
z The status settings can be checked on the menu screen.
(1)When 1920 × 1080i signals are output, “1920 × 1080i” is displayed.
(2)When 720 × 480i signals are output, “720 × 480i” is displayed.
(3)When 720 × 480P signals are output, “720 × 480P” is displayed.
(4)When DVI signals are output, “DVI” is displayed.
(5)When no units have been connected or the output format has not been determined,
“---------” is displayed.
Fig. 1
1-2 New Video Recording Standards
1-2-1 HDV (PF24) and CINE Mode (Each of these modes is effective only while the camera is in the tape mode.)
The HV20 A features some new functions that enable users to take shots with a cine-like quality or that can be applied as full-blown
digital cinema tools.
(1) NTSC : HDV (PF24)
The PF (Progressive Frame)24 setting, which has the same frame rate as cine shooting,
has been added as a video recording standard. (Refer to the figure on the right.) This
enables movie shooting at 24 frames per second which is a rate that takes full advantage
of the progressive readout capability of the CMOS chip.
When this mode is established, real 24P shooting with HD image quality is executed.
In NTSC areas, tapes are recorded in the 60i format using 2:3 pulldown.
(2) CINE mode
Joining the mode in (1) is the “CINE mode” which has been added to enable shooting
at a film image quality .
(FUNC. setting: Refer to the figure on the right.)
When CINE mode is established, the cine gamma, cine matrix and other image quality
adjustments which are based on custom preset 8 (CP8: CINE.V) of the XH G1 A, XH
A1 A are performed. By setting both the cinema mode and the HDV (PF24) mode in
(1), users can achieve images with a cine-like quality during TV viewing.
What’s more, the HDV (PF24) mode and CINE mode can each be set independently:
for instance, users can even set up the image quality of the CINE mode when the HDV/
DV (wide)/DV (normal) setting has been selected. However, this setting is not available in the AUTO mode.
HDV(PF24)
Fig. 2
CINE MODE
Fig. 3
1-3 Improved Operability
On the side panel at the front of the HV20 A main unit are a dedicated focus button for switching between Auto focus and manual
focus and a focus dial for focusing which team up to improve
focusing operations.
The same side panel at the front of the HV20 A main unit has a
backlight correction button (BLC button) for allocating the backlight correction function to make it easier for users to operate the
function using their left hand while they are holding the camera in
their right hand.
Backlight correction button
Focus button
(A/M switching)
Focusing dial
Fig. 4
2
TECHNICAL DESCRIPTION
2. PCB Functions
(1) MAIN PCB
System-Control Section
• IC100 CCM MI-COM System control (Camera/Card/Mode)
• IC101 FLASH Flash-ROM for CCM MI-COM (16Mbit)
• IC102 EX-OR GATE Generation of address signals and CS signals
• IC103 AND GATE Pass-ready notification signal between IC100/IC1101 (DIGIC DV II)
and between IC1000 (MPX)
• IC104 MOTOR DRIVER IC Motor drive for barrier
• IC105 NAND GATE Generation of address signals and CS signals
• IC106 EX-OR GATE Generation of address signals and CS signals
• IC107 NOR GATE Generation of address signals and CS signals
• IC108 CHIP SELECT DECODER Generation of address signals and CS signals
• IC109 ANALOG SWITCH MIC communication control
Camera/Card section
• IC1000 MPX4 AGC, image composition, defective pixel compensation, serial/parallel
conversion
• IC1100 DIGIC DV II Camera digital signal processing, card video image processing
• IC1102 SDRAM Memory for DIGIC DV II (128Mbit)
• IC1103 SDRAM Memory for DIGIC DV II (128Mbit)
• IC1200 LENS DRIVER Zoom, focus motor driver, IRIS driver, and gyro output AMP
• IC1501 CVF DRIVER CVF signal processing/driving
Lens section
• IC1611 SHIFT LENS DRIVER IC Driver IC for shift lens drive
• IC1612 D/A CONVERTER 8-bit, 8ch D/A converter for adjusting shift lens, DMC and focus lens
• IC1613 OPE AMP Shift lens positional sensor, sensor amplifier
Video section
• IC2000 VRP2 Record playback head amplifier
• IC2301 VIC HDV Digital VCR signal processing LSI, FR MI-COM,
Analog SD signal input/output processing
• IC2303 1394IC IEEE 1394 digital signal processing (MPEG-2 TS / DV)
• IC2306 OR GATE Serial communication control
• IC2307 SDRAM Memory for video signal processing/recording signal processing
• IC2308 AND GATE Timing adjustment at WRITE access to SRAM
• IC2309 AND GATE Timing adjustment at WRITE access to SRAM
• IC2310 FLASH/SRAM Memory for IC2303
• IC2800 HDV CODEC IC Compression/expansion for video & audio HDV
• IC2801 BASEBAND IC Component/SDI output, HD → SD conversion
• IC2802 COMPONENT DRIVER 75Ω driver AMP for component output
• IC2830 HDMI IC HDMI signal processing
• IC2831 DUAL INVERTER IC For reversing signal logic
• IC2833 PRESET AND CLEAR Signal control
Servo section
• IC300 MOTOR DRIVER IC Drum, capstan, and loading motor driver
PM section
• IC3200 MAIN POWER IC Power DC/DC converter (MAIN)
• IC3260 3.2V REGULATOR 3.2V regulator
• IC3261 4.6V REGULATOR 4.6V regulator
• IC3300 SUB POWER IC Power DC/DC converter (SUB)
• IC3310 5.0V REGULATOR 5.0V regulator
HV20 A
3
USB section
• IC3500 USB IC USB I/F
Audio section
• IC801 AIF4 Analog input/output signal processing, speaker amplifier
USB conector
(2) LCD PCB
• IC901 LCD DRIVER LCD signal processing/driving
• IC902 EEPROM EEPROM for LCD parts data
• IC903 2.8V REGULATOR 2.8V regulator
(3) CVF PCB
• IC1691 P SENSOR GYRO Pitch-direction angular velocity detection
• IC1692 Y SENSOR GYRO Yaw-direction angular velocity detection
(4) JACK PCB
• IC501 DC/DC CONVERTER CONTROL FLASH main condenser electric charge control
• IC502 CMOS IC Flash light emission switch drive
HV20 A
TECHNICAL DESCRIPTION
(5) CMOS SENSOR PCB
• IC1040 INVERTER Standard logic inverter
• IC1041 AFE Bch, Rch
• IC1042 AFE Gch
• IC1043 5V REGULATOR 5V regulator
• IC1044 4.2V REGULATOR 4.2V regulator
• IC1045 AMP Operational amplifier
• IC1046 CMOS CMOS image sensor
• IC1047 2.7V REGULATOR 2.7V regulator
(6) LCD PCB
LCD open detection SW, LCD reversing detection SW
(7) REAR PCB
Eject SW
(8) CVF FPC PCB
Display button switch, Easy direct button switch
(9) CARD PCB
Reset SW
(10) MF DIAL FPC PCB
Backlight correction button switch, Focus button switch, Focus dial switch
(11) C COVER ZOOM FPC PCB
Zoom lever switch, Joystick switch, Photo button switch, SET button switch, Power supply switch button, Movie shooting
mode selector switch, Start/stop button switch, Tape/Card selector switch, FUNC button switch
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3. Power Supply Circuit
3-1 Startup of Power Supply
HV20 A
TECHNICAL DESCRIPTION
BATTERY WIRE
BATTERY
TERMINAL
+
−
CN1
A16-A23
B13-B20
MAIN PCB
CN3200
+
−
DC JACK
CN3201
A16-A23
B13-B20
DMC-III
CASSETTE
IN SW
12
VCC
2.8V REG.
E3V
B5 A2
IC2301
FR MI-COM.
(VIC HDV)
IC3300
SUB POWER IC
VCC
C1C7
VTR ON
CCM
RESET
E3+LI
IC3200
MAIN POWER IC
LI-POWER
A5
CTL
3
A4
E14
CAS IN
VTR ON IC3300
A13
DC V DET
U10
RESET
G1
VTR ON IC3200
C14
VCC
B RESET
G14
E3V
F9
IC1100
DIGIC DV II
SERIAL
DATA
IC100
CCM
MI-COM.
CN500
B28
B28
CN1
LITHIUM
BATTERY
(2ND)
BATTERY WIRE
Fig. 5
5
Q100
RESET
SW
EJECT SW
EJECT PCB
CAM
POW SW
VTR
EJECT
POW SW
SW
CN1501CN102
CN872
CN873
CN100
POWER SW
D16
526
56
CVF FPC
65
65
D17
CASSETTE COVER
E16
TECHNICAL DESCRIPTION
• Backup Lithium Battery
LI3V power from lithium battery is input to the IC3200-A2 pin, output from A4 pin and supplied to the MI-COM as its power.
Thus, the MI-COM performs various data backup and clock operations when the main power supply is not connected.
• Main Power Supply
Power fed from main power (DC JACK/BATTERY) is input to IC3200, converted into 2.8V through its internal regulator and
output as E3V from B5 pin.
Due to internal switchover, instead of LI3V from lithium battery, 2.8V power output is supplied from the A4 pin through the
internal regulator.
When power is fed from main power, the IC3200 outputs “H” signal from its C1 pin. When detecting this “H” signal, the MI-COM
recognizes that the main power supply has been connected, and performs initialization and is brought into the standby status.
Under this status, the MI-COM performs detection of startup-related switches. When detecting that any of the startup-related
switches has been turned on, the VCR ON (H) signal is output from C14 pin. Upon output of VCR ON (H) signal, the power for
each circuit is turned on.
Power output from A5 pin of IC3200 is also used for recharging the lithium secondary battery.
HV20 A
6
3-2 Power Fuses
HV20 A
TECHNICAL DESCRIPTION
BATTERY WIRE
BATT.
TERMINAL
CN1
BATT +
MAIN PCB
CN3201
BATT. +
CN3200
DC +
FU1900
FU3203
FU500
FU3202
FU3200
FU3201
FU1800
SHOE
DRUM, CAPSTAN
ST UNREG
1.5V, 3.0V, 5.0V, 8.5V, VTR UNREG,
DC/DC IC(MAIN, SUB)
1.2V, 1.8V, 2.7V, LCD BL, −1.2V
5.35V
CHARGE UNREG
Fig. 6
The power supply from the battery DC JACK is supplied to five fuses on the MAIN PCB, through which the following seven power
voltages are delivered.
(1) SHOE : FU1900
• Advanced accessory shoe power source
(2) DRUM + CAPSTAN : FU3203
• DRUM/CAPST AN
(3) ST UNREG : FU500
• Main capacitor charging power source for flash memory
(4) 1.5V + 3.0V + 5.0V + 8.5V + VTR UNREG + DC/DC : FU3202
• 1.5V power source (DVDD1.4V, AVDD1.4V)
• 3.0V power source (AVDD3.0V, LCD3.0V, HA3.0V, USB3.2V, STROBE3.0V)
• 5.0V power source (P5V, LDC5V, AVDD4.6V, AA4.6V, HA4.6V, AVDD3.2V, HDMI3.2V)
• 8.5V power source (LDC8.5V)
• VTR UNREG
• DC/DC CONVERTER power source
(5) 1.2V + 1.8V + 2.7V + LCD : FU3203
• 1.2V power source (MACS1.2V, AVDD1.2V, TRIPLET1.2V REG, VICX1.2V)
• 1.8V power source (DDR1.8V, AFE1.8V, MACS SDRAM1.8V, SDRAM1.8V, HDMI1.8V)
• 2.7V power source (DVDD2.7V, AVDD2.7V, AA2.7V, EVF2.7V)
• LCD backlight drive power source (BL POW)
(6) CHARGE UNREG : FU1800
• Battery Charge circuit power source
(7) 5.35V : FU3201
• HDMI Power source
• CAM5V Power source
• 5.35V Power source (P5.15V)
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