Samsung UN40D5550RF E-Manual page 152

● Information: (digital channels only) The reception quality of over-
Signal
the-air HD channels is either perfect or the channels are unavailable.
Information
antenna to increase signal strength and receive HD channels.
● Troubleshooting: Displays a troubleshooting guide organized into four
symptom categories: Poor or Distorted Picture, Distorted Sound or No Sound,
RF or PC Issues, and Other Issues. If your TV seems to be having a problem,
access the troubleshooting guide for a solution.
▶
displays HD channel signal strength so you can adjust your
English
Signal
▶