Haier LE43B7600A Service Manual

The recommended resolutions and frequencies for connecting a video device to the Haier LE43B7600A TV using an HDMI port are listed in the Default HDMI Mode section of the manual. For example, the recommended resolution is 1920 × 1080 with a horizontal frequency of 66.587 kHz and a vertical frequency of 59.934 Hz.

If your TV does not turn on, first check if the AC input is connected and the power is turned on. If the power is on, check if the power board is outputting 12V. If not, you may need to replace the power board. If the power board is functioning correctly, check the IR board and LED. If the IR board is faulty, you may need to replace it. If the issue persists, you might need to replace the main board.

If the LED indicator on your TV is off, follow these steps: Check the AC input and ensure the power is turned on. If the power is on, verify if the power board is outputting 12V. If the power board is not outputting 12V, replace the power board. If the power board is functioning correctly, check the IR board and LED. If the IR board is faulty, replace it. If the issue persists, you may need to replace the main board.

To troubleshoot a display issue, follow these steps: 1. Check the source. 2. Reset the source. 3. Enter factory mode and perform 'EEPROM initial' and 'Reset'. 4. Check the main board and replace it if necessary. 5. Check the LVDS cable and replace it if needed. 6. Check the panel and replace it if required.

If you suspect the IR board is causing issues with your remote control, you can check if it is abnormal. If it is, you will need to replace the IR board. If the IR board is fine, the issue might be with the main board, which would also need to be replaced.

To adjust the white balance, turn on the TV, then press 'MENU+1999+OK' to enter the factory mode. Set the current source to 'Ypbpr' 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. Ensure that the MAX LV is greater than 220.

The color temperature specifications are as follows: Warm (x: 0.313 ± 0.003, y: 0.329 ± 0.003), Normal (x: 0.285 ± 0.003, y: 0.293 ± 0.003), and Cool (x: 0.272 ± 0.003, y: 0.278 ± 0.003). The MIN value for R GAIN, G GAIN, and B GAIN is 80, and the MAX value is 128.

The 12 Pin connector on the Power Board is used for connecting to the Main Board (MSD8560VX).

The WIFI Board is connected using the 16 Pin connector.

The GPIO Pull Up/Down configuration is used to set the default state of the GPIO pins. This can be crucial for ensuring that the pins are in a known state when the device is powered on or reset. For example, Y2 and C4 are configured as GPIO Pull Up/Down.