Same problem on my Samsung UE40D5520. Identically with the description given by Jim, the TV can not be controlled from remote or from the digital buttons. It is clear that this is a SW issue. I take a look under backcover to see if the capacitors from power supply board are damaged but everything seems to be ok. View and Download Samsung SyncMaster T27A300 user manual online. LED TV MONITOR 3 Series. SyncMaster T27A300 monitor pdf manual download. Also for: Syncmaster ta300.

Samsung T27b350 Driver

Specifications:

Display:
- Screen Size: 27'
- Resolution: 1920 x 1080
- Brightness: 300 cd/m2
- Static Contrast Ratio: 1000:1
- Dynamic Contrast Ratio: Mega-DCR
- Viewing Angle (Horizontal/Vertical): 170˚/160˚ (CR>10)
- Response Time: 5ms (GTG)

Samsung Syncmaster T27b350 Driver

Features:

- Special: Built-in ATSC/Clear QAM DTV, 5Wx2 Speakers, Connect Share (USB 2.0), Dolby Digital + / Pulse, dts 2.0+Digital Out, SRS TheaterSound, Win7 Certification

It is highly recommended to always use the most recent driver version available.
Try to set a system restore point before installing a device driver. This will help if you installed an incorrect or mismatched driver. Problems can arise when your hardware device is too old or not supported any longer.

Specifications:

Display:
- Screen Size: 27'
- Resolution: 1920 x 1080
- Brightness: 300 cd/m2
- Static Contrast Ratio: 1000:1
- Dynamic Contrast Ratio: Mega-DCR
- Viewing Angle (Horizontal/Vertical): 170˚/160˚ (CR>10)
- Response Time: 5ms (GTG)

Features:

- Special: Built-in ATSC/Clear QAM DTV, 5Wx2 Speakers, Connect Share (USB 2.0), Dolby Digital + / Pulse, dts 2.0+Digital Out, SRS TheaterSound, Win7 Certification

It is highly recommended to always use the most recent driver version available.
Try to set a system restore point before installing a device driver. This will help if you installed an incorrect or mismatched driver. Problems can arise when your hardware device is too old or not supported any longer.