Haier LE55B1381a Service Manual

If the unit is not operating normally, simply unplug it from the AC outlet and plug it back in. This should return the unit to normal operation.

The Haier LE55B1381a offers several input options including HDMI, VGA, YPbPr, AV, SCART, USB, and Coaxial (COAX).

The TDA18273 component is likely a tuner or demodulator used for processing signals received through the antenna input, enabling the TV to receive and display broadcast signals.

The components labeled as MA_DQS0, MA_DQSB0, and MA_DQM0 are part of the data strobe and mask signals in the memory interface of the Haier LE55B1381a. These signals are crucial for synchronizing data transfer and managing data mask operations.

The USB0_DM and USB0_DP pins are part of the USB interface on the Haier LE55B1381a. These pins are used for data transmission and reception, allowing the device to connect to USB devices for various functions such as media playback or firmware updates.

You can set the automatic shutdown timer by choosing a duration from 5 to 240 minutes. If you want to deactivate this function, you can do so through the settings.

No, you cannot change the clock time manually during DTV mode. The time is directly sourced from the signal.

To select between Air and Cable input for your antenna, go to the Channel menu and choose 'Air/Cable'. If you select 'Cable', certain features like Favorite, Show/Hide, Channel NO, Channel Label, and DTV Signal will be unavailable.

To perform an auto scan for channels, go to the Auto Scan menu. If you have selected 'Cable' as the input signal, you can choose the Cable System among Auto, STD, IRC, and HRC. Highlight 'Start to Scan' and press the ENTER button to begin the search. If you have selected 'Air', press the button to start the scan. To stop the scan at any time, press the MENU button.

To set the ADC value for YUV and VGA signals, you can manually input the values or use the auto-set feature. For YUV, use a 100% color bar, and for VGA, use a Checkerboard signal.