Samsung (2020-2024) AutoCal Guide

Note: Serial connections do not have the full capabilities of the IP DDC connection, it is recommended you connect to your TV via the network steps listed in Step 1.

To connect the Calman calibration computer to a Samsung TV:

1. Connect an ExLink adapter (3.5mm headphone jack to DB9 serial cable) between the 3.5mm jack on the side of the Samsung OneConnect box labeled “External Sync” and an RS232 port on your PC or to a USB to serial converter.
2. If you are using a USB to serial converter, in Windows Device Manager, under “Ports (COM & LPT),” look for a “USB Serial Port (COMx)” listing.
3. Note the listed COM port (COMx) of the serial converter.

3.5mm Headphone Jack to DB9 Female Serial Cable

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USB to RS232 Serial Converter

For connecting to a Samsung TV with a computer that does not have an RS232 port, we recommend the FTDI USB to RS232 converter. Extensive testing has determined that this FTDI converter, which includes a data buffer, is the most reliable adapter to use for Calman device control.

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Driver:

USB Driver download for FTDI converter or, Calman Device Driver Pack

Step 1

• From the Calman Menu in the top-left, choose Open Workflow Template -> Display Specific and then AutoCal – Samsung.
• On the introduction screen, click SDR Calibration to proceed to the hardware connect page.

• Plug your meter into a USB port on the computer and press the Find Meter button on the left.
  • When your meter is connected, select your display type from the dropdown (this will vary by meter and display in use)
• Connect Pattern Source to your computer.
  • Click the Find Source button then select your source
  • Select the pattern window size
    • SDR: Full Field
  • Select the pattern delay
    • 2 seconds
• Connect to your Samsung TV
  • Click the Find Display Button
  • Choose the year and model you are calibrating in the drop-down under Model.
  • Enter your TV’s IP Address into the connection dialog box, and click Connect.
    • After clicking connect, the Samsung TV will display a permission dialog on-screen, use the Samsung Remote to allow the Calman connection.
    • If the permission dialog is not displayed, ensure IP remote is enabled (Settings > Connection > Network > Expert Settings > IP Remote)
• Once all hardware has been connected, click Next to continue

Step 2

Confirm the calibration targets.

• For SDR, calibration targets should be:
  • Colorspace: Rec709
  • Whitepoint: D65
  • Gamma: ITU BT.1886

Step 3

In this step, you’ll take readings of the display before the calibration. These will be used to compare the calibration results.

• To take Pre-Calibration Measurements click the Read Series […] button to measure the display’s grayscale and ColorChecker response
  • This will provide a point of reference to compare the calibration results

Step 4

Here the target picture mode can be selected, and the TV will be reset to prepare for calibration.

• Select Picture Mode to Calibrate.
  • Each Picture Mode is a separate memory slot for calibration data. Calibrations to one mode and colorspace do not affect the other picture modes.
• Using the picture mode dropdown menu, select which picture mode you would like to calibrate.
  • SDR Picture Modes:
    • Movie
    • Filmmaker
    • Cal-Day
    • Cal-Night
• After selecting the picture mode, click the Full DDC Reset button. This resets and prepares the picture mode for calibration.
• Click Next after the DDC reset is complete

Step 5

In this step, you will be able to adjust the Luminance of the display to match your desired target. Luminance is a subjective target. SDR reference luminance is 100cd/m2, but you may need to target higher to account for the ambient light in your environment.

• Click the Read Continuous button to measure your TV’s light output at 100% white and adjust the display’s peak white to the desired luminance.
  • Luminance is a subjective target. SDR reference luminance is 100nits, but you may need to target higher to account for the ambient light in your environment.
• Adjust your TV’s backlight/OLED light control so your TV is about 15% brighter than your final target to account for a reduction in luminance when calibrating the 1D LUT in the next step.
• Press Stop when luminance adjustment is complete

Step 6

On this page, Calman will adjust your display’s White Balance

• Click the AutoCal button to perform the 2pt greyscale AutoCal
  • SDR calibration should use 20% and 100%
• Once complete, click Next

Step 7

Here Calman will adjust the Multipoint Greyscale of your display.

• Press the AutoCal button and select the SDR greyscale points on the AutoCal dialog
• Once complete, click Next to proceed to post-calibration verification

CMS Calibration Note:

• CMS calibration quality varies greatly by the display model being used. In some cases, the post-calibration results will be better without performing CMS autocal.
• If you would like to attempt CMS Autocal, click the CMS Adjustment button in the top-right

CMS Autocal

• Click the CMS Adjustment button in the top-right of the Greyscale Autocal page
• Press the AutoCal button to open AutoCal dialog. Configure the dialog as follows:
  • Saturation Set: 100%
  • Saturation Point: 100%
  • Stimulus Level: 75
• Click OK to begin CMS AutoCal process

Step 8

It’s common to lose some overall luminance after calibration. Use step this to adjust back to your luminance target if it has changed.

• Click the Read Continuous button to measure the TV’s light output at 100% white and adjust the display’s peak white to the desired luminance.
• Press Stop when luminance adjustment is complete

Step 9

Post-calibration readings to document the post-calibration condition of the display.

• Click the Read Series […] button to measure the display’s grayscale and color gamut response.

• Click Next.
• On the Calibration Complete page, you can choose to…
  • Save and Report
    • Select Save and Report to generate the calibration report
  • Calibrate Next Mode
    • Returns to the beginning of the workflow where a new mode or colorspace can be selected
    • Note: Does not save workflow data
  • Additional Validation
    • Allows measurement of the display using more thorough Saturation Sweeps and ColorChecker® patch sets

SDR Calibration is complete.

Step 1

• From the Calman Menu in the top-left, choose Open Workflow Template -> Display Specific and then AutoCal – Samsung.
• On the introduction screen, click HDR Calibration to proceed to the hardware connect page.
  • Note: To improve HDR greyscale calibration, select your model from the menu on the right. This will use a set of greyscale points specific to your model

• Plug your meter into a USB port on the computer and press the Find Meter button on the left.
  • When your meter is connected, select your display type from the dropdown (this will vary by meter and display in use)
• Connect Pattern Source to your computer.
  • Click the Find Source button then select your source
  • Select the pattern window size
    • HDR: 10% Window
  • Select the pattern delay
    • 2 seconds
  • Configure your pattern generator for HDR output
• Connect to your Samsung TV
  • Click the Find Display Button
  • Choose the year and model you are calibrating in the drop-down under Model.
  • Enter your TV’s IP Address into the connection dialog box, and click Connect.
    • After clicking connect, the Samsung TV will display a permission dialog on-screen, use the Samsung Remote to allow the Calman connection.
    • If the permission dialog is not displayed, ensure IP remote is enabled (Settings > Connection > Network > Expert Settings > IP Remote)
• Once all hardware has been connected, click Next to continue

Step 2

Confirm the calibration targets.

• For HDR, calibration targets should be:
  • Colorspace: Rec.2020
  • Whitepoint: D65
  • Gamma: ST.2084 HDR (PQ)

Step 3

In this step, you’ll take readings of the display before the calibration. These will be used to compare the calibration results.

• To take Pre-Calibration Measurements click the Read Series […] button to measure the display’s grayscale and ColorChecker response
  • This will provide a point of reference to compare the calibration results

Step 4

Here the target picture mode can be selected, and the TV will be reset to prepare for calibration.

• Select HDR Picture Mode to Calibrate.
  • Ensure you select one of the HDR picture modes
  • If an HDR signal is not being sent to the TV, you will receive an error when attempting to switch
• Using the picture mode dropdown menu, select which picture mode you would like to calibrate.
  • HDR Picture Modes:
    • Movie – HDR
    • Filmmaker – HDR
    • Cal-Day – HDR
    • Cal-Night – HDR
• Check the HDR (Mode Reset) box
• After selecting the HDR picture mode and checking the HDR checkbox, click the Full DDC Reset button. This resets and prepares the picture mode for calibration.
• After clicking Reset, using the OSD, set the HDR Tone Mapping setting to Static and set the Custom Color to BT.2020
• Click Next after the DDC reset is complete

Step 5

On this page, Calman will adjust your display’s White Balance

• Click the AutoCal button to perform the 2pt greyscale AutoCal
  • HDR calibration should use 30% and 80%
• Once complete, click Next

Step 6

Here Calman will adjust the Multipoint Greyscale of your display.

• Press the AutoCal button and select the HDR greyscale points on the AutoCal dialog
  • If you have selected your model on the welcome page, either HDR20PTA or HDR20PTB will be automatically selected. Leave the default selected as it will be the best match for your display
• Once complete, click Next to proceed to post-calibration verification

CMS Calibration Note:

• CMS calibration quality varies greatly by the display model being used. In some cases, the post-calibration results will be better without performing CMS autocal.
• If you would like to attempt CMS Autocal, click the CMS Adjustment button in the top-right

CMS Autocal

• Click the CMS Adjustment button in the top-right of the Greyscale Autocal page
• Press the AutoCal button to open AutoCal dialog. Configure the dialog as follows:
  • • Saturation Set: 50%
    • Saturation Point: 50%
    • Stimulus Level: 50
• Click OK to begin CMS AutoCal process

Step 7

Post-calibration readings to document the post-calibration condition of the display.

• Click the Read Series […] button to measure the display’s grayscale and color gamut response.

• Click Next.
• On the Calibration Complete page, you can choose to…
  • Save and Report
    • Select Save and Report to generate the calibration report
  • Calibrate Next Mode
    • Returns to the beginning of the workflow where a new mode or colorspace can be selected
    • Note: Does not save workflow data
  • Additional Validation
    • Allows measurement of the display using more thorough Saturation Sweeps and ColorChecker® patch sets