CV420-CS - Camera Marshall Electronics - Free user manual and instructions

Product Type	Professional Video Camera
Brand	Marshall Electronics
Model	CV420-CS
Lens Mount	CS Mount
Video Output	3G-SDI (BNC)
Max Resolution	4096 x 2160 at 60fps
Supported Resolutions	4K (4096x2160, 3840x2160), 1080p, 720p
Frame Rates	60, 59.94, 50, 30, 29.97, 25, 24, 23.98 fps
White Balance Modes	ATW, One Push, Indoor, Outdoor, Manual
Exposure Modes	Auto, Shutter Fix, AGC Fix, Manual
Day/Night Mode	Auto, Day, Night with adjustable levels and delay
Audio Input	MIC/LINE with attenuation and AGC
Communication	VISCA RS-232
Baud Rates	2400, 4800, 9600, 19200, 38400, 115200
Power Supply	12V DC
Special Features	HDR (SDR, PQ, HLG), Digital Zoom, Defog, Privacy Mask, DNR
Control	On-screen display (OSD) joystick and VISCA remote
Included Accessories	I/O cable, User manual

Frequently Asked Questions - CV420-CS Marshall Electronics

How do I reset the camera to factory defaults?

Go to the RESET menu using the OSD joystick. Set MODE to FACTORY and select RESET. Alternatively, you can also choose USER if you have saved a custom configuration.

How can I adjust white balance manually?

In the WB CONTROL menu, select MANUAL mode. Then adjust the BLUE and RED levels (0-255) using the LEFT/RIGHT buttons. For best results, first use ATW mode before switching to manual.

Why is there no picture on my monitor?

Check that all devices are powered on, the voltage is correct, and the power supply provides enough current. Ensure video cables are securely connected. Verify that the camera is set to the correct output format.

How do I change the video output resolution?

In the SETUP menu, select OUTPUT FORMAT. Use the LEFT/RIGHT buttons to choose the desired resolution and frame rate from the available options (e.g., 1920x1080p60, 3840x2160p30, etc.).

How to enable HDR mode on the camera?

In the SPECIAL menu, select HDR. Choose from SDR (Standard Dynamic Range), PQ (Perceptual Quantizer), or HLG (Hybrid Log Gamma) depending on your requirements.

How do I set up privacy masking?

In the SPECIAL menu, select PRIVACY. You can define and enable privacy zones to mask specific areas on the screen. Follow the OSD instructions to set the mask positions and size.

What should I do if the picture is flickering?

Check the termination impedance (should be 75Ω). Ensure the camera is not pointing at bright light sources. Reduce the video cable length or use a signal amplifier. Also, adjust the FLK CONTROL in AE CONTROL menu to match the power frequency.

How do I clean the camera lens?

Use a soft, dry, non-abrasive cloth or a commercially available lens cleaning set to gently wipe the glass in front of the lens. Avoid touching the glass with fingers.

How can I control the camera remotely?

The camera supports VISCA communication over RS-232. Connect a VISCA controller to the camera's communication port. In SETUP, adjust the BAUD RATE and CAM ID for proper communication.

What is the maximum cable length for video transmission?

For reliable operation, keep the BNC video cable length under 100 feet (30 meters). For longer distances, use a signal booster or repeater.

USER MANUAL CV420-CS Marshall Electronics

Black Marshall CV420-CS optical camera with visible lens and control buttons (no text beyond branding)

User Manual

Marshall

CV420-CS Manual

Table of Contents

1. Menu Structure	02
2. OSD Joystick and Button	04
3. WB CONTROL	05
4. AE CONTROL	06
5. DAY / NIGHT	07
6. AUDIO	08
7. IMAGE CONTROL	09
8. SPECIAL	10
9. SETUP	11
10. RESET	12
11. EXIT	13
12. TROUBLESHOOTING	14
Warranty	15

1. Menu Structure

Setup Sub Menu $ub Menu
WB CONTROL	ATW
	ONE PUSH
	INDOOR
	OUTDOOR
	MANUAL	BLUE
		RED
AE CONTROL	AUTO	AGC MAX
		SENS UP
		AE BRIGHT
		FLK CONTROL
		LENS MODE
	SHUT FIX	SHUTTER
		AGC MAX
		SENS UP
		AE BRIGHT
	AGC FIX	AGC
		AE BRIGHT
		FLK CONTROL
		LENS MODE
	MANUAL	SHUTTER
		AGC
		SENS UP
DAY NIGHT	DAY
	NIGHT NIGHT COLOR
	AUTO

Marshall

CV420-CS Manual

Setup Sub Menu Sub Menu
AUDIO	MIC/LINE AUDIO LEVEL
		MIC AT TENUATOR
		SAMPLE BITS
IMAGE CONTROL	CONTRAST
	BRIGHTNESS
	SATURATION
	HUE
	EDGE ENHANCE
	AUTO SATURATE
	AUTO EDGE
	BLACK WHITE LV	BLACK LEVEL
		WHITE LEVEL
	GAMMA CORRECT
	DNR	DNR MODE
		DNR LEVEL
SPECIAL	DZOOM
	DEFOG
	BINNING
	DEFECT PIXEL
	DISP. FUNCTION
	HDR
	FLICKER DETECT
	PRIVACY
SETUP	CAM TITLE
	COMMUNICATION	CAM ID
		ID DISPLAY
		BAUD RATE
	MODEL
	S/W Ver
	OUTPUT FORMAT
RESET USER/FACTORY
EXIT

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2. OSD Joystick and Button

I/O Cable (included in box)

1. SET Used to access the menu and confirm selection.
2. UP Used to move the cursor up.
3. DOWN Used to move the cursor down.
4. LEFT Used to move the cursor left and change the value
5. RIGHT Used to move the cursor to the right and change the value.

Press SET button to access the Main Menu

Icon indicates "Press OSD button" or "Enter Sub Menu"

www.marshall-usa.com3 4

3. WB CONTROL

Select WB CONTROL using the UP or DOWN button. You can change between AWB, ATW, PUSH, and MANUAL using the LEFT or RIGHT buttons.

graph LR
    A["MENU WB CONTROL"] --> B["MODE"]
    A --> C["BLUE"]
    A --> D["RED"]
    A --> E["RETURN"]
    B --> F["MANUAL"]
    C --> G["10 ⋯⋯⋯⋯"]
    D --> H["10 ⋯⋯⋯⋯⋯"]
    E --> I[">"]

• ATW: Continuously adjusts camera color balance in accordance with any change in color temperature. Compensates for color temperature changes within the range of 1,900°K to 11,000°K
• ONE PUSH: Color temperature will be manually adjusted by pushing the OSD button. Place the white paper in front of the camera when OSD button is pressed to obtain the optimum result
  • MANUAL: Select this to fine-tune White Balance manually

You can adjust the blue and red tone level manually.

1. BLUE: Adjust the Blue tone of the image. (0-255)
2. RED: Adjust the Red tone of the image. (0–255)
3. INDOOR: Select this to adjust white balance to indoor lighting condition

4. OUTDOOR: Select this to adjust white balance to outdoor lighting condition

5. Adjust White Balance first by using the ATW mode before switching to MANUAL mode.

6. White Balance may not work properly under the following conditions. In this case, select the ATW mode.

- When the ambient illumination of the subject is dim.

- If the camera is directed towards a fluorescent light or is installed in place where illumination changes dramatically, the White Balance operation may become unstable.

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4. AE CONTROL

Select AE CONTROL using the UP or DOWN button. You can select one sub-mode using the UP or DOWN buttons.

• AUTO: Adjusts the exposure level automatically. Detailed fine tuning options are available under this menu.
• SHUT FIX: Provides more detailed shutter speed options. All other controls are tuned for the selected shutter speed.
• AGC FIX: Provides more detailed gain option. All other controls are tuned for the selected gain value.
  • MANUAL: Adjusts all values manually.
• SHUTTER: Speed can be set at auto or manual. (NTSC:1/60\~1/10,000, PAL: 1/50\~1/10,000)
  • AGC: Adjust gain value from 0 \~ 27dB
• AGC MAX: Used to set maximum gain value to control the video noise caused by Auto Gain Control. (0\~15)
• SENS UP: Controls the digital slow shutter to allow extra light into the camera and adjust the picture quality. (Off, x2-x15)
• AE BRIGHT: Select this to adjust auto exposure brightness levels. (0–24)
• FLK CONTROL: Provides a proper image sensor frequency to match the power frequency in order to minimize video flicker
• LENS MODE: Lens setting will be optimized for selected environment, for DC Iris lens only

5. DAY / NIGHT 6. AUDIO

Select DAY / NIGHT using the UP or DOWN button. You can select one sub-mode from AUTO, COLOR, and NIGHT using the UP or DOWN buttons.

• MODE: Set camera to either color mode or B&W mode. (Auto, Day, Night)
• DAY: Set camera to Day mode (Color)
• NIGHT: Set Camera to Night mode (B&W)
- NIGHT COLOR: When on, camera stays on color mode. Night (B&W) can be selected from this mode. (On, Off)
• Auto: When set to AUTO mode, camera changes DAY and NIGHT mode automatically
- DELAY [SEC]: Adjusts time delay between Day to Night or Night to Day change
• D->N LEVEL: Adjusts sensitivity level of when camera changes from Day to Night
- N->D LEVEL: Adjusts sensitivity level of when camera changes from Night to Day

Select AUDIO using the UP or DOWN button and enter ON using SEL button. You can select one sub-mode using the UP or DOWN buttons.

• MODE: Select MIC or LINE for audio input source
• AUDIO LEVEL: Select this to adjust audio levels manually
- MIC ATTENUATOR: Audio attenuation can be controlled from this menu to minimize the audio noise level
- AGC LIMIT: Audio gain limit can be controlled while MIC ATTENUATOR is in used.
- SAMPLE BITS: Select the bit depth of audio

7. IMAGE CONTROL 8. SPECIAL

Select IMAGE CONTROL using the UP or DOWN button.

You can select CONTRAST, HUE, and image related menu using the UP or DOWN buttons.

• CONTRAST: Adjust the image contrast level value
  • BRIGHTNESS: Adjust the image brightness level value
  • SATURATION : Adjust the image saturation level value
  • HUE: Adjust the image hue level value
  • EDGE ENHANCE: Adjust the image sharpness level
  • AUTO SATURATE: Decrease saturation automatically when noise scene is detected
  • AUTO EDGE: Enable or disable auto sharpness control
• BLACK WHITE LV: Adjust the image black & white level value
  • GAMMA CORRECT: Adjust the image output gamma level
• DNR: Reduces the video noise at low ambient light

Select the DNR level from Auto, LOW, MIDDLE, and HIGH using the LEFT or RIGHT button.

Select SPECIAL using the UP or DOWN button.

You can select BINNING, FREEZE, and HDR using the UP or DOWN buttons.

• DZOOM: Digitally zoom the video by the desired ratio
- DEFOG: This feature will help increase visibility in extreme weather conditions, such as fog, rain or in a very strong luminous intensity
• BINNING: Enable or disable pixel binning
- DEFECT PIXEL: Advanced defective pixel correction menu. Power cycle the camera after running DPC
- DISP. FUNCTION: Display effect such as freeze mirror, rotation, ands style can be applied from this menu
• HDR: Enable HDR mode (SDR, PQ, HLG)
1. SDR: Apply Standard Dynamic Range
2. PQ: Apply Perceptual Quantizer
3. HLG: Apply Hybrid Log Gamma
- FLICKER DETECT: Adjust the image sensor frequency to match the power frequency
• PRIVACY: Mask an area you want to hide on the screen by applying the privacy zones

9. SETUP 10. RESET

CAMERA setup can be adjusted from this menu.

You can select CAMERA ID, Communication, System Info, and Output Format using the UP or DOWN buttons.

• CAM TITLE: Camera title can be turned ON or OFF
• COMMUNICATION: VISCA communication can be adjusted
• CAM ID: Camera ID can be setup. (0\~254)
• ID DISPLAY: Camera ID display can be displayed
• BAUDRATE: Camera baud rate can be set. (2400, 4800, 9600, 19200, 38400, 115200)
• MODEL: Display product model number
• S/W VER: Display software version number
• OUTPUT FORMAT: Camera resolution and frame rate can be set

(1080 by default)

Select the FRAME RATE using the LEFT or RIGHT buttons.

Available Frame Rates are:

4096 x 2160p 60, 59.94, 50, 30, 29.97, 25, 24, 23.98

3840 x 2160p 60, 59.94, 50, 30, 29.97, 25, 24, 23.98

1920 x 1080p 60, 59.94, 50, 30, 29.97, 25, 24, 23.98

1920 x 1080; 60, 59.94, 50

1280 x 720p 60, 59.94, 50

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Select RESET using the UP or DOWN button.

graph LR
    A["WB CONTROL"] --> B[">"]
    C["AE CONTROL"] --> D[">"]
    E["DAY/NIGHT"] --> F[">"]
    G["AUDIO"] --> H[">"]
    I["IMAGE CONTROL"] --> J[">"]
    K["SPECIAL"] --> L[">"]
    M["SETUP"] --> N[">"]
    O["RESET"] --> P[">"]
    Q["EXIT"] --> R["->"]
    S["MODE"] --> T["FACTORY"]
    U["RESET"] --> V[">"]
    W["SAVE AS USER"] --> X[">"]
    Y["RETURN"] --> Z["->"]

• RESET: Reset the camera settings to the factory defaults or user setting value. RESET
• MODE: Set the camera setting to either "FACTORY" or "USER".
• USER: Select "USER" If user saved setting value is needed.
• FACTORY: Select "FACTORY" if factory default setting is needed.
• RESET: Reset the camera to the mode set on RESET MODE.
• SAVE AS USER: Save the current camera settings as "USER".

11. EXIT 12. TROUBLESHOOTING

Select EXIT using the UP or DOWN button.

MENU
WB CONTROL	>
AE CONTROL	>
DAY/NIGHT	>
AUDIO	>
IMAGE CONTROL	>
SPECIAL	>
SETUP	>
RESET	>
EXIT

- SAVE: Exit the setup after saving the value changes.

Problem Solutions
Nothing appears on the screen.	a. Check that all connected devices are powered on.b. Confirm that the voltage is correct.c. Confirm that the power supply provides enough current to power the camera.d. Check that all video cables are correctly connected.
The picture is not clear.	a. Check that your monitor is correctly adjusted.b. Confirm that the glass in front of the lens is clean. If there is dust, dirt, or fingerprints on the glass, the image quality will be affected. To clean the glass, use a soft, dry, and non-abrasive cloth or a commercially available lens cleaning set.c. Correctly adjust the focus.
The picture has interference.	a. The camera may be close to a high voltage source, such as a power generator.b. The BNC cable is not terminated properly.c. The video cables are not connected properly.
The picture is flickering continually.	a. Check the termination and set the impedance at 75Ω properly.b. Ensure that the camera is not pointing towards the Sun or any light source.c. Check if there is any intermediate device.d. Check if the distance of the video cable exceeds the maximum transferable limitation.
The camera is not synchronizing with the reference signal.	a. Make sure Tri-Level reference signal is used.b. Locking takes up to 1 minute depending on the signal strength. Make sure the sync LED is solidly lit.c. Check if the cable and connectors used in reference sync are in good condition.d. Make sure the cable length used in reference sync does not exceed 100 ft.e. Make sure OUTPUT EN is on when using the genlock output.

Warranty

Marshall Electronics warranties to the first consumer that this device will, under normal use, be free from defects in workmanship and materials, when received in its original container, for a period of two years from the purchase date. This warranty is extended to the first consumer only, and proof of purchase is necessary to honor the warranty. If there is no proof of purchase provided with a warranty claim, Marshall Electronics reserves the right not to honor the warranty set forth above. Therefore, labor and parts may be charged to the consumer. This warranty does not apply to the product exterior or cosmetics. Misuse, abnormal handling, alterations or modifications in design or construction void this warranty. No sales personnel of the seller or any other person is authorized to make any warranties other than those described above, or to extend the duration of any warranties on behalf of Marshall Electronics, beyond the time period described above.

Due to constant effort to improve products and product features, specifications may change without notice.

Marshall

20608 Madrona Avenue, Torrance, CA 90503

Tel: [phone] • Fax: [phone]

www.marshall-usa.com

[e-mail]