Haier LE22T1F Service Manual

Service ManualModel No.:8.3 How to enter into the hotel model1. You can press "source-1-0-0-1" to go into the hotel model. Presse the key "exit"to shut the hotel model.Content:1.Hotel Mode:2.Panel Key Lock:3.Max Volume:4.Start Source:5.Start Channel:6.Start Menu Display:7.Input Source Change:8.Save to USB:9.Loaking:10.Volume DefaultHotel mode switchPanel key lockHotel mode can adjust the maximum volumeHotel mode locking TV signal sourceHotel mode locking program channelsHotel Mode menu is displayedHotel mode is to display the SourceU disk data will be cloned into the machineTV related equipment will be copied to the system, U disk ,to other machines used for cloning- 36 -

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Frequently asked questions

The resolution of the Haier LE22T1F TV is 1920x1080 pixels.

The response time of the Haier LE22T1F TV is 5.0 milliseconds (gray to gray).

To change the input source, press the 'SOURCE' button on the front panel or the remote control. This will display the input source menu. In MENU mode, press 'SOURCE' to confirm the selected item.

To adjust the volume, use the 'VOL+' or 'VOL-' buttons on the front panel or the remote control. In TV mode, these buttons will increase or decrease the sound level. In MENU mode, they will adjust the selected item.

The silicon tuner and can tuner are components used for tuning signals. The silicon tuner has specific resistor and capacitor values (e.g., R216:0R, C259:0.1μF) while the can tuner has different values (e.g., R216:33R, C260:120pF). These components are crucial for the proper functioning of the tuning mechanism in the device.

If it's the first time you are using the TV, you should scan all the TV channels first. Press the OK button to confirm and select 'Scan all channels' from the Auto Scan menu.

To update the software on your Haier LE22T1F TV, follow these steps: 1. Prepare a USB memory stick with the firmware file. 2. Turn on the TV and insert the USB stick. 3. Press the 'MENU' button and select 'update software', then press 'OK'. 4. Choose 'Yes' to start the update process. 5. After the update is complete, reset the TV. Do not turn off the TV during the update process.

If your Haier LE22T1F TV freezes during a software update, do not turn off the TV. Wait for the update process to complete. If the TV remains unresponsive, you may need to reset the TV by unplugging it from the power source, waiting for a few minutes, and then plugging it back in. After the TV restarts, try the update process again.

If your TV has sound but no picture, you should check the voltage at U3 Pin20 (3.3V) and Pin11 (5V). Additionally, check if there is +30V at C931. If these voltages are not as expected, you may need to replace U3 or U5.

To troubleshoot a main board failure, check the voltage at U5 Pin2 (0.72V), Pin3 (5V), Pin4 (12V), and Pin6 (5.7V). If these voltages are normal, check if there is +5V at Pin35 in CN204. If not, you may need to replace Q101. If the issue persists, check if Q103, D10, and D9 are working. If they are not, replace them. If the problem still exists, consider changing the LVDS wire or the panel.

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