Haier LE22D10 Service Manual

To perform a simple check on your Haier LE22D10, refer to the section titled '8-1. Simple Check' on page 3 of the service manual.

To connect your PC to the Haier LE22D10 TV, first set the video resolution of your PC to 1024x768 60Hz on its original monitor. Then, connect the RGB cable on the PC to the VGA cable on the TV set with a VGA cable. Connect the audio output cable on the PC to the PC IN cable on the TV set with a stereo audio cable. Turn on the PC and select VGA in the input source menu on the TV.

The Haier LE22D10 TV supports the following resolutions and refresh rates: 1920x1080 at 60Hz, 1680x1050 at 60Hz, 1440x900 at 60Hz, 1280x1024 at 60Hz, 1024x768 at 60Hz, 800x600 at 60Hz, 640x480 at 60Hz, and 720x400 at 70Hz, 75Hz, 60Hz, 70Hz, 75Hz, 70Hz. The refresh rates vary depending on the resolution.

The Haier LE22D10 should be operated using the AC polarized line cord provided with the unit.

If the screen is black but the backlight is on, first check whether the driven board cable is correctly connected. If the connection is okay, check the output network and whether the driven board socket part is normal. If these are okay, check if the software matches. If the software is not matched, upgrade the software again. If the issue persists, check the LCD power supply and clock circuit chip LVDS output pin for any short circuit or open circuit. If the voltage in pin 5 or 6 of the 6 is correct, and the output voltage is correct, you may need to change the driven board cable.

If the display unit is showing a message, first check whether the driven board cable is correctly connected. If the connection is okay, check the output network and whether the driven board socket part is normal. If these are okay, check if the software matches. If the software is not matched, upgrade the software again. If the issue persists, check the LCD power supply and clock circuit chip LVDS output pin for any short circuit or open circuit. If the voltage in pin 5 or 6 of the 6 is correct, and the output voltage is correct, you may need to change the driven board cable.

If your Haier LE22D10 TV is not displaying any image, first check whether the external RF input signal is normal. If the signal is normal, check the TP3 point on the main board to see if it has 3.3V. If not, check resistors R6 or R7 for I2C data. If there is no I2C data, check resistors R50 or R51 for an intermediate-frequency signal. If there is no signal, you may need to check the tuner (TDA18273) and the main chip (MSD318) circuits, as well as the related circuits of the tuner and the power supply network.

To troubleshoot the tuner on your Haier LE22D10 TV, first check the voltage at TP6 on the main board. If it is 3.3V, check and repair the peripheral RF equipment. If not, check R6 or R7 for I2C data. If there is I2C data, check R50 or R51 for an intermediate-frequency signal. If there is an intermediate-frequency signal, check the tuner (TDA18273) and the main chip (MSD318) circuit between them. If not, check the tuner (TDA18273) related circuits. Additionally, check the I2C network pull-up voltage and the power supply network circuit of this pin.

If the TV display has a color cast or missing colors, you should check the Y/PB/PR signal input network.

If the TV screen shows 'No signal', you should check the peripheral circuit, crystal oscillator circuit, and input network.