Haier LE24C2380a Service Manual

To safely turn off the power to the Haier LE24C2380a LED TV for maintenance, ensure that the TV is unplugged from the power source. This is crucial to prevent any electrical hazards during the repair process.

For the 1024x768 resolution at 75Hz, the vertical frequency (V.Freq.) is 75Hz and the horizontal frequency (H.Freq.) is 60.02 KHz.

To connect a DVD player or Set Top Box to the Haier LE24C2380a TV using HDMI, connect the source device to the HDMI port of the TV with an HDMI cable. No separate audio connection is necessary. If the source device supports Auto HDMI, the output resolution will be automatically set to 1280x720p. If not, manually set the output resolution to 1280x720p for the best picture quality. Select HDMI input source in the input source option of the Select Main source menu.

To connect a source device with DVI to the Haier LE24C2380a 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 TV is not responding to the remote control, ensure that the remote control sensor on the front panel is not obstructed. Additionally, press the 'STANDBY' button on the front panel to turn the unit ON from STANDBY mode, and then try using the remote control again.

The resistors R116, R107, and R83 have specific resistance values (10K, 10K, and 100R respectively) and are likely used for current limiting, voltage division, or pull-up/pull-down functions in the circuit. These resistors help in stabilizing the electrical signals and ensuring proper operation of the components they are connected to.

To change the password for the Parental Controls, press the 'Menu' button, select 'Parental Controls', and then choose 'Change Password'. You will need to input the old password, the new password, and confirm the new password.

To play music from an external storage device, connect the USB storage device to the TV's USB input. Ensure the device is formatted in FAT32 and has a maximum capacity of 50GB. Navigate to the Multimedia Menu, select 'Music,' and choose the .mp3 files or folders you want to play. Press ENTER to start playing.

If the software update process is interrupted, do not turn off the TV. Ensure the update process completes fully. If the TV is turned off during the update, it may cause issues with the TV's functionality. If the update fails, try the process again with a properly formatted USB memory stick containing the correct firmware file.

If your TV has sound but no picture, you should first check if there is +5V at Pin35 in J9. If there is, then check if there is +26V at C931. If the voltage at C931 is not +26V, you may need to replace Q103, FB12, D10, D9, or R700. If the voltages are normal, you might need to replace U3 or U5.