Haier HL24XD2 Service Manual

Also see for HL19D2:

23.6″ LCD TV Haier HL24XD21ServiceServiceServiceHorizontal Frequency31~68 KHzTABLE OF CONTENTSDescription Page Description PageSAFETY NOTICEANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSISAND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICINGELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING6.1 Main Board…………………………...…….….......246.2 Power Board…..…………..………….…..…….......266.3 Key Board………………………..……..……….......296.4 IR Board…………………………..……….…….......297. Adjustment..............................................................308. Block Diagram.…….................................................319. Wiring Diagram.……...............................................3210. Schematic Diagram………..……..………………...3310.1 Main Board…………….…………………...….......3310.2 Power Board………..…....…………...……….......4310.3 Key Board……………….………….………….......4510.4 IR Board……………………………….……….......4611. Exploded View……………………….………….…...47Table of Contents.......……....................................…........1Important Safety Notice.......................................……......2Revision List…………………………………………………31. General Specification.................................………........42. Operating Instructions…………………….……...….......62.1 The Use of Remote Control…….…………...…….......62.2 To Use the Menus…...………………….….………......72.3 Front Panel Control Knobs……………….………......122.4 How to Connect…….…………………….…..…….....133. Input/Output Specification…………....................…....144. Mechanical Instructions…………………….................165. Repair Flow Chart ……………………….…….…….....196. PCB Layout ………………..………………....…..........24

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Frequently asked questions

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

The dimensions of the Haier HL24XD2 TV with the stand are 572.2 mm (W) x 407.6 mm (H) x 176.8 mm (D). Without the stand, the dimensions are 572.2 mm (W) x 372.8 mm (H) x 65.4 mm (D).

To access the menus, press the Menu button to display or close the main menu. Use the Navigation Ring to move around and select, adjust, or confirm an item in the On Screen Display (OSD) menu. You can adjust items including Video menu, Audio menu, Feature menu, Channel menu, and VGA menu. Note that some function items in the menus may only be enabled in the particular source modes.

If your Haier HL24XD2 is not turning 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 5V. If not, replace the power board. If the power board is outputting 5V, check the IR board and LED. If the IR board is faulty, replace it. If the issue persists, replace the main board.

To troubleshoot the power issue on your Haier HL24XD2, follow these steps: 1. Ensure the AC input is connected and the power is turned on. 2. Check if the power board is outputting 5V. 3. If the power board is not outputting 5V, replace the power board. 4. If the power board is outputting 5V, check the IR board and LED. 5. If the IR board is faulty, replace it. 6. If the issue persists, replace the main board.

First, check if the TV is under control and power on/off by remote control and power key. If it is, check if the backlight is 'On'. If the backlight is on, check the LVDS cable and ensure the B/L signal is available. If the signal is not available, reinsert or replace the LVDS cable. If the panel Vcc is 5V, replace the main board. If the power board output is not 16V, replace the power board. If none of these steps resolve the issue, you may need to replace the panel or the main board.

To troubleshoot the 'No display' issue, follow these steps: 1. Check if the TV is under control and power on/off by remote control and power key. 2. Check if the backlight is 'On'. 3. Check the LVDS cable and ensure the B/L signal is available. 4. Check if the panel Vcc is 5V. 5. Check if the power board output is 16V. Depending on the results, you may need to reinsert or replace the LVDS cable, replace the main board, replace the power board, or replace the panel.

To enter the factory mode, turn on the TV, press 'Menu', then press the number keys 1, 9, 9, 9, and 'ENTER'. This will take you to the factory mode.

To connect an audio input device, you can use the Audio IN ports. These ports are designed to accept audio signals with a 300 OHM impedance. You can connect devices such as a PC, DVD player, or AV equipment to the corresponding audio input ports (PC_Audio_L, PC_Audio_R, AV_Audio_L, AV_Audio_R, DVD_Audio_L, DVD_Audio_R).

The PHONEJACK is used for connecting an earphone or headphone to the Haier HL24XD2. It allows you to listen to audio privately. The jack is labeled as 88G 30254C and is designed to work with standard 3.5mm audio connectors. To use it, simply plug your earphone into the PHONEJACK.

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