Gomax CV-305P User manual

3G/HD/SD-SDI to HDMI Scaler-Converter
User Manual
rev: 110726
Made in Taiwan
C
CV V- -3 30 05 5P P
The CV-305P 3G/HD/SD-SDI to HDMI Scaler-Converter has been tested for conformance to safety
regulations and requirements, and has been certified for international use. However, like all electronic
equipments, CV-305P should be used with care. Please read and follow the safety instructions to protect
yourself from possible injury and to minimize the risk of damage to the unit.
●Follow all instructions and warnings marked on this unit.
●Do not attempt to service this unit yourself, except where explained in this manual.
●Provide proper ventilation and air circulation and do not use near water.
●Keep objects that might damage the device and assure that the placement of this unit is on a stable
surface.
●Use only the power adapter and power cords and connection cables designed for this unit.
●Do not use liquid or aerosol cleaners to clean this unit. Always unplug the power to the device before
cleaning.
TABLE OF CONTENTS
INTRODUCTION .....................................................................................................................2
FEATURES..............................................................................................................................2
SPECIFICATIONS...................................................................................................................3
PACKAGE CONTENTS ..........................................................................................................4
PANEL DESCRIPTIONS.........................................................................................................5
CONNECTION DIAGRAM.......................................................................................................6
Default Setting .........................................................................................................................7
Notice.......................................................................................................................................7
IR Remote Control...................................................................................................................8
IR & Front Panel Button...........................................................................................................9
Firmware Update Procedure .................................................................................................14
Appendix–Supported Resolution...........................................................................................16

2
INTRODUCTION
The CV-305P 3G/HD/SD-SDI to HDMI Scaler-Converter offers the highest compatibility among SDI,
composite, component, DVI, VGA, HDMI and S-Video to HDMI or DVI in the market. This unique device
supports analog and digital conversion and scaling without loss of quality. With the embedded advanced
de-interlacer, interlaced video inputs, such as component, composite and S-Video, can be further
improved. CV-305P supports the insertion of stereo analog audio and S/PDIF inputs into HDMI output
with local duplicated outputs! For SDI, CV-305P can support up to 8 digital audio channel embedded in
SDI stream and make perfect conversion between SDI and HDMI signals. With this advanced feature,
users can combine asynchronous video and audio sources into the state-of-art HDMI compliant A/V
signal for further long range lossless transmission and high standard A/V experience!
CV-305P is especially designed to ease the SDI conversion to the common HDMI interface with
affordable cost. With CV-305P, SDI will not become a bottleneck in your applications and the handy audio
support can make the input video and audio become HDMI ready. With versatile IR remote control and
push buttons, CV-305P offers a very easy way to convert, switch, adjust videos at your convenience. With
PIP and PAP support, users can display two video inputs at the same time!
FEATURES
SD/HD/3G SDI compliant
HDCP 1.1 and DVI 1.0 compliant
Scales up and down VESA compliant formats (VGA and DVI)
Scales SD/ED/HD video inputs to VESA compliant formats
PIP and PAP support
Advanced video processing supports: noise reduction, color management, fleshtone control, dynamic
contrast control, closed caption support for CVBS, 3D de-interlacing, 3:2/2:2 pull down detection and
recovery.
Selectable analog stereo and S/PDIF audio support for HDMI audio
RS-232 Firmware upgradable to guarantee the functionality revised.
Equivalent to 6 different video format switcher to HDMI
Video output supports up to WUXGA, UXGA or 1080p
Supports stereo audio and S/PDIF
Supports 8 channel SDI digital audio
Supports two up to 3G-SDI loop-outs
HDMI / DVI compliant output
Versatile IR control
Push button control
3
SPECIFICATIONS
Model Name
CV-305P
CV-805
Technical
HDMI&HDCP
Compliance
HDMI & HDCP 1.1
Digital video bandwidth
4.95Gbps
Analog video bandwidth
165MHz [Single Link]
Analog audio bandwidth
N/A
20 ~ 20KHz
Maximum resolution
1080p60 / 1920x1200@60
Max. TMDS input clock
165MHz
Max. output pixel clock
165MHz
Input TMDS signal
1.2 Volts [peak-to-peak]
Input DDC signal
5 Volts [peak-to-peak, TTL]
SDI Support
SD/HD/3G
N/A
Input
1x HDMI + 1x CVBS + 1x S-Video +
1x VGA + 1x YPbPr + 1x DVI +
1x S/PDIF + 1x Stereo + 1 x SDI
1x HDMI + 1x CVBS + 1x S-Video +
1x VGA + 1x YPbPr + 1x DVI +
1x S/PDIF + 1x Stereo
Output
1x HDMI + 1x S/PDIF + 1x Stereo +
2x SDI
1x HDMI + 1x S/PDIF + 1x Stereo
PIP / PAP
YES
Audio support
8CH SDI Audio / Stereo (24 bit ADC)
/ S/PDIF
Stereo (24 bit ADC) / S/PDIF
S/PDIF support
48KHz
ESD protection
[1] Human body —±19kV [air-gap discharge] & ±12kV [contact discharge]
[2] Core chipset —±2kV
PCB stack-up
6-layer board [impedance control —differential 100; single 50]
IR remote control
Electro-optical characteristics: = 25/ Carrier frequency: 38KHz
DVI connector
DVI-I [29-pin female]
RS-232 connector
DE-9 [9-pin D-sub female]
RCA connector
9 pin S-Video, CVBS, and S/PDIF
BNC connector
75inter-locked socket
3.5mm connector
Earphone jack for analog stereo audio or IR cable
DIP switch
Restore default

4
Mechanical
Housing
Metal enclosure
Dimensions
[L x W x H]
Model
132 x 158 x 40mm [5.2” x 6.2” x 1.6”]
125 x 165 x 42mm [4.9” x 6.5” x 1.6”]
Package
330 x 200 x 95mm [1’1” x 7.9” x 3.7”]
Carton
495 x 440 x 380mm [1’7” x 1’5” x 1’3”]
Weight
Model
530g [1.2 lbs]
594g [1.3 lbs]
Package
995g [2.2 lbs]
1581g [3.5 lbs]
Fixedness
Wall-mounting case with screws
Power supply
5V 2A DC
Power consumption
1 Watts
Operation temperature
0~40°C [32~104°F]
Storage temperature
-20~60°C [-4~140°F]
Relative humidity
20~90% RH [no condensation]
PACKAGE CONTENTS
1x CV-305P
1x DVI to VGA adapter
1x 3.5mm to L/R audio cable
1x Installation software CD
1x DC 5V 4A in-line with C7 power cord
1x VGA to component breakout cable
1x Composite&S-video breakout cable
1x IR Remote control
1x User Manual
5
PANEL DESCRIPTIONS
Input Panel
1. Audio OUT: Analog audio output from PC or DVD players
2. S/PDIF OUT: 48KHz digital audio output from PC or DVD players
3. IR: Receiving IR signal
4. SIGNAL LED: Indicate signal
5. RS-232: Firmware update and future software control
6. HDMI OUT: HDMI signal out
7. MENU Button
8. UP Button
9. DOWN Button
output Panel
10. +5V DC
11. POWER LED: Indicate power up
12. STEREO IN: Input CVBS and S-Video by breakout cable
13. INPUT: SD/HD/3G SDI input
14. OUT 1-2: SD/HD/3G SDI loop-out
15. DVI VGA: Input HDMI/DVI/Component
16. S/PDIF IN: 48KHz digital audio input from PC or DVD players
17. Audio IN: Analog audio output from PC or DVD players

6
Bottom Panel –2-pin DIP Switch
CONNECTION DIAGRAM
1. Connect your video sources to the input connectors.
2. Connect your HDMI enabled monitors into the device’s HDMI output port.
3. Power up the CV-305P.
4. Use IR or push buttons to select the input, setup the output resolution, and adjust your video format.
18.Switch
Position
-
-
Input 1
Normal
Reset
Input 2
Normal
Reset
7
DEFAULT SETTING
1. Power up the CV-305P.
2. To reset CV-305P back to the factory default values, pull up-and-down the DIP switch 1&2 from OFF
to ON to complete the process. You NEED to pull back the DIP switch back to OFF in order to get
CV-305P work normally.
NOTICE
1. As the video formats evolves and expands, CV-305P is firmware upgradable for this fashion.
2. PIP and PAP only support digital and analog display or dual display for single input.
3. Analog stereo audio can merely support 2-channel audio. This version does NOT support 8-channel
analog audio applications.
4. S/PDIF audio input can support 2 out of 8-channel audio input.
5. S/PDIF supports only 48KHz audio sample rate. Other than this rate, the input digital audio should be
adjusted to 48KHz in order to get audio signal correctly sent.
6. Through OSD menu, users can decide which audio groups of SDI can be output!

8
IR REMOTE CONTROL
Idle
PIP/PAP Menu
Control Buttons Menu
Sleep ON
Freeze Video
Exit OSD
Menu On
Source: Sequential source switch
Info: Display input type and time
Auto: Auto adjustment for VGA
input
C.C.: No use in this model
HDMI: No use in this model
Aspect: Aspect ratio change
TV: No use in this model
CV1: CVBS
CV2: No use in this model
YUV1: No use in this model
YUV2: No use in this model
SV1: S-Video
SV2: No use in this model
VGA: VGA
DV1: DVI/HDMI
F1: No use in this model
F2: Display input timing
F3: Auto color balance
The buttons not listed above are not in use for this model.
9
IR & FRONT PANEL BUTTON
Men
u
Video Processing
Audio Settings
Image Settings
Settings
Display Mode
Resolution
Inputs
PIP
Zoom
ZoomRatio
OSD
Video Wall
Exit
Video Processing
Main DCDi
Main MADI
LCD Overdrive
Split Screen
Blue Stretch
Film Mode
Exit
Audio Settings
SPDIF/PC
Exit
On/Off/Exit
Off/Adaptive/Standard/Low/Hi
gh/Exit
Off/Medium/Low/High/Exit
On/Off/Exit
Off/Low/Medium/High/Exit
Off/Force2:2/Normal3:2/Video-
3:2-2:2/Exit
Back to Video Wall
PC Audio/SPDIF/Mute/2.1CH
G1&2/2.1CH G3&4/7.1CH
G1&2/7.1CH G3&4/Exit
Back to Audio Settings

10
Brightness
Adjust Brightness 0~100
Adjust Contrast 0~100
Adjust Saturation 0~100
Adjust Hue 0~100
Adjust Red 0~100
Adjust Green 0~100
Adjust Blue 0~100
Adjust MPEG NR 0~63
Medium/High/Off/Exit
Low/Moderate/High/Off/Exit
Exit
Back to Image Settings
Display Mode
Size
Mode
16:9/Letter Box/Letter Box
Expand/4:3/ Pillar Box Expand
/Water Glass/Panoramic/Exit
DVI Mode/HDMI Mode/Exit
Exit
Back to Display Mode
Image Settings
Contrast
Saturation
Hue
Red
Green
Blue
MPEG NR
Temporal NR
Fleshtone
11
Settings
IR
Factory Reset
On/Off/Exit
Execute Factory Reset
Information
Show the Input Information
Mode Overlap
480p/640x480/Exit
Freeze
Freeze Unfreeze Main Screen
OSD Language
English/繁體中文/简体中文/Exit
Exit
Back to Settings
Resolution
800x600@60 /1024x768@60 /1280x1024@60 /1280x720@60
/1366x768@60 /1440x900@60 /1400x1050@60/ 1920x1080@60/
1920x1200@60 /1600x1200@60
Exit
Back to Resolution
Inputs
VGA/VIDEO1/SVIDEO1/CMPT1/HDMI(DVI)/SDI/Exit
PIP
PIP Mode
No PIP/Large PIP/Small PIP/ Side-By-Side /Exit
PIP Position
UpLeft/UpRight/DownLeft/DownRight/Exit
Inputs
VGA/VIDEO1/SVIDEO1/CMPT1/HDMI(DVI)/Exit
Blend
PIP Blend Level 0~100
Exit
Back to PIP

12
Zoom
Zoom in by Vertical
ZoomInH
Zoom in by Horizontal
ZoomOutV
Zoom out by Vertical
ZoomOutH
Zoom out by Horizontal
Exit
Back to Zoom
ZoomRatio
Zoom Ratio 50~133% only works on Main Full Screen
OSD
Hpos
OSD Horizontal position 0~100
Vpos
OSD Vertical position 0~100
Blend
OSD Blend Level 0~15
OSDTime
OSD Existing Time 7~60 (sec)
Exit
Back to OSD (sec)
ZoomInV
13
Video Wll
Divide H by
Divide Horizontal by 1~10
Divide V by
Divide Vertical by 1~10
Position
Select Position from 1~H*V
Masking in Left
Masking in Left -128~127
Masking in Right
Masking in Right -128~127
Masking in Upper
Masking in Upper -128~127
Masking in Bottom
Masking in Bottom -128~127
Exit
Back to Video Wall
Exit
Exit menu

14
FIRMWARE UPDATE PROCEDURE
Software Interface:
1024 bytes as the default.
Please check all the power and serial port connection to
avoid any further unexpected damages during firmware
update. Check “Agree”to enable the firmware update
procedure.
Execute firmware update.
ComPort Settings:
Select ComPort of PC
connected to the device.
Push “auto scan”to start the
automatic scan on each
ComPort.
BaudRate is default as 115200.
15
Window Messages
The connection is not correct. Please check:
Power
Cable
Baud Rate
The whole firmware update procedure fails. Please check
Power
Cable
Baud Rate
The firmware update procedure requires a power cycle.
Please turn off the device, wait for a couple of seconds,
and power on the device.
Congratulations. The whole process is successfully
completed!

16
APPENDIX–SUPPORTED RESOLUTION
[DVI-IN1] Socket
Supported Mode
Resolution
NTSC/480I/525I
720x240 @60Hz
PAL/576I/625I
720x288 @50Hz
480P/525P
720x483 @60Hz
480P (16:9)
960x483 @60Hz
576P/625P
720x756 @50Hz
(HDTV) 720p
1280x720 @50Hz
(HDTV) 720p
1280x720 @60Hz
(HDTV) 1080i
1920x1080 @50Hz
(HDTV) 1080i
1920x1080 @60Hz
(HDTV) 1080p
1920x1080 @30Hz
VESA
720x400 @85Hz
VESA
640x350 @85Hz
VESA
640x400 @85Hz
IBM
720x400 @70Hz
IBM
720x350 @70Hz
IBM
640x350 @70Hz
IBM
640x400 @70Hz
VESA
640x480 @60Hz
MAC
640x480 @67Hz
VESA
640x480 @72Hz
VESA
640x480 @75Hz
VESA
640x480 @85Hz
VESA
800x600 @56Hz
VESA
800x600 @60Hz
VESA
800x600 @72Hz
VESA
800x600 @75Hz
VESA
800x600 @85Hz
Supported Mode
Resolution
MAC
832x624 @75Hz
VESA
1024x768 @60Hz
MAC
1024x768 @60Hz
VESA
1024x768 @70Hz
IBM
1024x768 @72Hz
VESA
1024x768 @75Hz
MAC
1024x768 @75Hz
VESA
1024x768 @85Hz
VESA
1152x864 @75Hz
MAC
1152x870 @75Hz
SUN
1152x900 @66Hz
SUN
1152x900 @76Hz
VESA
1280x960 @60Hz
VESA
1280x960 @85Hz
VESA
1280x1024 @60Hz
HP
1280x1024 @60Hz
IBM
1280x1024 @67Hz
HP
1280x1024 @72Hz
VESA
1280x1024 @75Hz
SUN
1280x1024 @76Hz
VESA
1600x1200 @60Hz
VESA
1920x1200 @60Hz
17
[DVI-OUT] Socket
Supported Mode
Resolution
(HDTV) 720p
1280x720 @60Hz
(HDTV) 1080p
1920x1080 @60Hz
VESA
800x600 @60Hz
VESA
1024x768 @60Hz
VESA
1280x1024 @60Hz
VESA
1366x768 @60Hz
VESA
1400x900 @60Hz
VESA
1400x1050 @60Hz
VESA
1600x1200 @60Hz
VESA
1920x1200 @60Hz