Haier LT19Z6 Service Manual

To use the remote control for the Haier LT19Z6 LED TV, refer to section 2.1 of the manual titled 'The Use of Remote Control'.

To connect the Haier LT19Z6 LED TV, follow the instructions provided in section 2.3 of the manual titled 'How to Connect'.

If the TV screen is not displaying any picture and the LED is orange, you should first check the keyboard/IR board. If that is not the issue, proceed to check the 24V power supply, then the main board standby power supply, and finally the I2C bus and communication.

If the OSD is unstable or not working, first check if the Key Pad Board is connecting normally. If it is, then check if the Button Switch is functioning properly. If the Button Switch is fine, check if the Key Pad Board is working normally. If the Key Pad Board is not working, you may need to replace it. If the Key Pad Board is working, then check the Main Board for any issues.

To adjust the white balance on your Haier LT19Z6, follow these steps: 1. Select source as 'YPbPr'. 2. Set Contrast = 58, Brightness = 48, Color = 58 in normal menu mode. 3. Apply an 80% white pattern or Flat80 pattern using a component video generator. 4. Enter factory mode menu by pressing MENU + Numeric keys 1999. 5. Apply a Flat pattern (80% white pattern). 6. Set the color temperature to 'NORMAL' and adjust the Scaler R Gain, Scaler G Gain, Scaler B Gain values to meet the 'NORMAL' color coordinates specification. Store these values to NVM. 7. Repeat steps 5 and 6 for 'COOL' and 'WARM' color temperatures, adjusting the Scaler R Gain, Scaler G Gain, Scaler B Gain values accordingly and storing them to NVM.

The color temperature specifications for the Haier LT19Z6 are as follows: - Normal (9000K): x = 0.289±0.003, y = 0.291±0.003 - Cool (12000K): x = 0.272±0.003, y = 0.277±0.003 - Warm (6500K): x = 0.314±0.003, y = 0.319±0.003

The YPbPr/VGA /SIDE AV Input on the Haier LT19Z6 is used for connecting various audio and video sources to the device. It supports different types of inputs, including YPbPr, VGA, and SIDE AV, allowing for flexible connectivity options.

To troubleshoot issues with the VGA input on the Haier LT19Z6, you can check the connections and components listed in the manual, such as C1155, R1157, and R1160. Ensure that all components are properly connected and functioning. If the issue persists, you may need to consult a professional technician for further assistance.

The FUSE (F901) in the power board of the Haier LT19Z6 is an 84G 56 1 C fuse. It is likely used to protect the circuit from overcurrent conditions, ensuring the safety and longevity of the device.

The ON/OFF switch (NR901) in the power board of the Haier LT19Z6 is used to control the power supply to the device. When the switch is turned on, it completes the circuit, allowing power to flow through the board. When turned off, it breaks the circuit, cutting off the power supply.