Applies to: PVM models SMT-2731/2721PV, SMT-3231/3221PV
 

Issue Summary

Some Public View Monitors (PVMs) emit a continuous, high-pitched sound from the internal speaker when powered by a PoE injector or a DC power adapter.

The 27" PVMs have an issue with the monitor not shutting down properly when the selected video input has no active video signal. This does not impact the 32" PVMs.

This article provides the troubleshooting steps to address these issues and update the PVM firmware.

Resolution

Temporary Workaround

Use the original remote control supplied with the monitor and press the Power button to power cycle the PVM OFF/ON.

Permanent Fix

Use the following instructions and attached firmware file (at the bottom of this article) to update the monitor firmware to v03.01.240517.

IMPORTANT: This must be done physically with a USB 2.0 flash drive inserted into the 
USB port on the monitor (USB 3.0 will not work) as the firmware is for the monitor.

Upgrading the Firmware

To upgrade the PVM firmware:

1. Download the attached firmware file to your PC and extract the .bin files, renaming the one specific to your monitor.
   
   Example filename change:
   
   SMT2731PV_MC5_PV0301_240517.bin -> SMT27x1PV_MC5.bin
   where x = 2 (SMT-2721PV) or x = 3 (SMT-2731PV)
   
   SMT3231PV_MC5_PV0301_240517.bin -> SMT32x1PV_MC5.bin
   where x = 2 (SMT-3221PV) or x = 3 (SMT-3231PV)
    
2. Copy the firmware to an external USB thumb drive.
    
3. Insert the USB thumb drive into the USB port of the monitor.
   
   
    
4. Using the remote control for the monitor, switch the input to Camera.
   
   
    
5. Press the Menu button on the remote control to get the OSD menu.
   
   
    
6. Press the Menu button on the remote control, then select Other > USB UpdataFW.
   
   
    

7. Use the direction key (>) or press Enter to begin the upgrade, changing Idle (default) to Writing.
   
   

   NOTE: The front LED blinks one or two times during the update,
   then shows the camera video.

8. Navigate to OSD > Reset.
    
9. Power cycle the PVM.

Checking the Firmware Version

To verify the PVM firmware has been updated to the correct version:

1. Press the direction key (< or >) on the remote control.
    
2. When the volume bar is visible, press F5.
   
    
   
   This screen shows the current version of the firmware (v03.01.240517) on screen.