Haier HL22XLT2 Service Manual

To use the remote control, refer to section 2.1 of the manual titled 'The Use of Remote Control' on page 6.

The supported scan rates for the PC IN connector on the Haier HL22XLT2 are 640x480@60/72/75Hz, 720x400@70Hz, 800x600@56/60/72/75Hz, 1024x768@60/70/75Hz, 1280x720@60Hz, 1280x768@60Hz. Additionally, 1280x1024@60Hz, 1440x900@60Hz, 1680x1050@60Hz, 1920x1080@60Hz are also supported for HL22XLT2 / HL22XLTW2 only. The recommended resolution is 1920x1080@60Hz.

The supported resolutions for the Component Video input on the Haier HL22XLT2 are 480i@59.94/60Hz, 480p@59.94/60Hz, 720p@59.94/60Hz, 1080i@59.94/60Hz, 1080p@59.94/60Hz.

If the display is abnormal and the source is not the issue, you should enter factory mode to perform 'EEPROM initial' and 'Reset'.

If the display is abnormal and the LVDS cable is not the issue, you should check the panel. If the panel is faulty, you will need to replace it.

First, check the audio source connection and ensure the TV system is set correctly. If the issue persists, try reinserting the audio cable or changing the TV system. If the TV is muted, adjust the volume or enter the menu to reset. If the problem still exists, enter factory mode to do a 'Reset'. If the cable between the speakers and the main board is faulty, replace the cable. If the speaker resistance value is not within the specified range, replace the speaker. If none of these steps resolve the issue, you may need to replace the main board.

If the TV is not muted and the volume is set correctly, check the cable between the speakers and the main board for any issues. If the cable is faulty, replace it. If the cable is fine, check the speaker resistance value to ensure it is within the specified range. If the resistance value is not within the specified range, replace the speaker. If the speaker is fine, you may need to replace the main board.

The HDMI signals in the Haier HL22XLT2 are managed through various components and connections. For example, HDMI0_D0P and HDMI0_D0N are differential pairs that carry the data signals. The HDMI interface includes resistors (R501, R502, etc.) and capacitors (C501, C502, etc.) that help in signal conditioning and noise reduction. Additionally, components like U504 (AZC199-04S) and U507 (AZC199-04S) are likely involved in processing and transmitting the HDMI signals.

To connect an audio input device, you can use the audio input jacks labeled AV_Audio_L, AV_Audio_R, PC_Audio_L, PC_Audio_R, DVD_Audio_L, and DVD_Audio_R. These jacks are designed to accept standard audio cables and are located on the rear panel of the unit.

The PHONEJACK is used for connecting an earphone or headphone output. It is labeled as 88G 30254C and is designed to accept a standard 3.5mm audio jack. To use it, simply plug your earphones or headphones into the jack, and the audio output will be routed through the earphones.