Haier 39D3005 Service Manual

To turn on the Haier 39D3005 TV, press the POWER button on the front panel.

To change the input source on the Haier 39D3005 TV, press the INPUT button on the front panel.

First, verify if the television is properly plugged in and supplied with power. Ensure that electricity is available. If the issue persists, check the signal input by pressing the SOURCE button to change to TV input and restart the television if the power supply was interrupted.

To troubleshoot poor sound, verify that the sound system is set correctly. Refer to the user manual for instructions on how to adjust the sound settings.

The TPA3110D2PWPR (UA1) is the Audio Amplifier in the Haier 39D3005. It is responsible for amplifying the audio signals to drive the speakers.

If the speakers are not broken, check if the main board has the right input according to the source you are connecting (TV/COMPONENT/AV/VGA/HDMI, etc.). Then, check the corresponding audio input circuit. If the issue persists, verify if UA1 has the right output and power. If UA1 is functioning correctly, check CN17 input. If all else fails, you may need to change the mainboard.

If your TV is showing black and white for some channels, first verify if the same problem exists in other channels. If the issue persists, check the picture and sound system of the affected channel. If the problem is still not resolved, change the channel to the correct sound system (PAL-BG SECAM/L) and refer to the relative instructions in the manual for color adjustment. If you still have problems, consider updating the software and rebooting the TV, or changing the mainboard.

A horizontal bar or line on the screen can indicate a TCP failure, panel failure, or misalignment between the TCP and the LCD panel. It could also be due to something electric entering the panel or an awful environment causing issues.

A vertical color line or gray line on the screen can be caused by a TCP failure, panel failure, or ACF bonding short. It could also be due to a vertical bar defect, TCP cracking, or something electric entering the panel.

The backlight shutdown issue could be due to a short between the lamp housing and the wire, which causes the system to consume too much power. It could also be due to a bad connection between the wire and the electrode.