Haier LE50K6500U Service Manual

To connect a source device with DVI output to the Haier LE50K6500U TV, use an HDMI-to-DVI cable to connect the source device to the HDMI port of the TV. A separate audio connection is necessary. If the source device has an analog audio output connector, connect the source device's audio output to the DVI Audio In port located on the PC port. If the source device supports Auto DVI, the output resolution will be automatically set to 1280x720p. If not, manually set the output resolution to 1280x720p for the best picture quality. Press the INPUT button to select the HDMI input source in the input source option of the Select Main source menu.

If your Haier LE50K6500U TV is not turning on, first ensure that the AC polarized line cord is properly inserted into a standard polarized AC outlet. If the issue persists, try unplugging the unit from the AC outlet and plugging it back in. This should return the unit to normal operation.

No, you should only use the AC polarized line cord provided with the TV. It is recommended to use the attached power cord only for safe and proper operation.

The power consumption of the 5V_Normal mode is 2.06A.

If you are experiencing a 12V issue, check the signal at the specified points (LA3, LA8, LA16, LA15). If there is no signal, you may need to change the L32 voltage. If the problem continues, consider changing UA4.

If the mainboard is not working, you should check the following: 1. Ensure there is +12V/+5V output on the power board. 2. Verify if the DC/DC converters have the correct output voltages (5V, 3.3V standby, 1.5V, 1.15V). 3. Check if the Mainchip (MSD308BEM) and AudioAMP are soldered well. 4. Verify if the FLASH (U6) has the right software and the correct voltage of 3.3V. 5. Check if the Y1 (Crystal) has the correct frequency of 24MHz.

If the panel is not working, follow these steps: 1. Check if the voltage input and output of the voltage boost IC of the backlight is OK. 2. Verify if the Mainboard outputs the correct On/Off signal to the power board. 3. Check if the Mainboard outputs the LVDS signal to the panel T-con board. 4. Ensure the software is the correct version for this model. 5. Change the LVDS wire to check if it is broken.

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 into the LCD.

A horizontal bar (H B/D) can be caused by a block defect, TCP cracking, TCP sunken, TCP lead cracking, ACF bonding short, an awful environment, or something electric entering into the LCD.

The cacophony sound when turning on the TV 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.