Haier LEC24B3320 Service Manual

To enter the factory model, follow the instructions provided in section 8-1 of the service manual.

The Haier LEC24B3320 offers several resolution settings, including 640x480, 800x600, 1024x768, 1280x1024, and 1366x768.

To change the picture mode, press the 'P.M' button on the remote control repeatedly to cycle through the available modes: Vivid, Standard, Sports, Movie, or Custom.

To access the previously viewed program, press the 'RECALL' button on the remote control.

The color temperature settings available are Cool (gives white colors a blue tint), Normal (gives white colors a neutral tint), and Warm (gives white colors a red tint).

If there is no sound or picture, first check if the voltage pressure of JP7 Pin2 is high (more than 3V). If it is, then check if there is voltage pressure in the pad of the L806˄12V˅ˈL2˄5V˅. If the voltage pressure is not as expected, you may need to change the mainboard or U1.

If you are experiencing issues with the picture and sound system, refer to the relative instructions in the manual for color adjustment. Additionally, check if the same problem exists on other channels. If the issue persists, you may need to update the software and reboot the device, or consider changing the mainboard.

A vertical gray line (V Dim) can be caused by a sunken TCP, TCP lead cracking, ACF bonding short, an awful environment, or something electric entering the LCD.

A horizontal line (H L/D) that is either light or dark forever can be caused by a misalignment between the TCP and the panel, panel failure, or TCP failure.

The cacophony sound when turning the panel is likely due to mechanical noise from the backlight unit. This could be caused by a ripple or a bad connection between the wire and the electrode.