Haier LE43B7500 Service Manual

To adjust the WB on the Haier LE43B7500 TV, refer to the instructions provided on page 42 of the service manual under the section titled '7.1 WB Adjustment'.

The steps to update the firmware on the Haier LE43B7500 TV can be found on page 43 of the service manual under the section titled '7.2 Firmware and DDC Instruction'.

To change the language of the OSD menu, you can select the desired language from the Menu Language option in the setup menu. The default language is English, but you can choose from options like West (Western Europe), East (Eastern Europe), Russian, or Arabic.

The available picture formats are 16:9, 4:3, Zoom1, and Zoom2. You can change the picture format by selecting the desired aspect ratio from the Picture Format option in the setup menu to optimize your viewing experience.

To manually search for TV channels, select the TV menu and go to Channels. Then, select Manual Search and press the OK key or the ► arrow key to access the Manual search sub-menu. Input the Start Frequency and End Frequency for the search range, then select Start Search and press the OK key or the ► key to begin the search.

If your Haier LE43B7500 TV won't turn on and the LED is blue, you should first check the power board. If the power board output is 12V, then check the key board. If the power key is under control, check the IR board. If the IR receiver is normal, then replace the main board. If none of these steps resolve the issue, replace the power board.

First, check if the audio source connection and the TV system are correct. If not, reinsert the audio cable or change the TV system. If the connection is correct, check if the TV is muted, adjust the volume, or enter the menu to reset. If the issue persists, enter factory mode to do a 'Reset'. If the problem still isn't resolved, check the cable between the speakers and the main board. If the cable is faulty, replace it. If the cable is fine, check the speaker resistance value to see if it is within the specified range. If the speaker resistance value is not in spec, replace the speaker. If all else fails, replace the main board.

To reset your Haier LE43B7500 TV to factory settings, enter the factory mode and select the 'Reset' option. This should help resolve any sound issues you might be experiencing.

To adjust the white balance, turn on the TV and press 'Menu+8893' to enter the factory mode. Set the current source to 'AV' and choose the color temperature as Warm, Normal, or Cool. Use the remote control to select 'WD Pattern' for 80, then adjust the R/G/B values using the Gain bar to meet the required specification range.

The color temperature specifications for the Haier LE43B7500 TV are as follows: Warm (x: 0.313 ± 0.010, y: 0.329 ± 0.010), Normal (x: 0.285 ± 0.010, y: 0.293 ± 0.010), and Cool (x: 0.272 ± 0.010, y: 0.278 ± 0.010). The gain values for R, G, and B should be within the range of 80 (MIN) to 138 (MAX) for R and B, and 80 (MIN) to 128 (MAX) for G.