Haier LE22D3380 Service Manual

Also see for LE22D3380:

21.5″&23.6″ LCD TV Haier LE22D3380&LE24D338001ServiceServiceServiceHorizontal Frequency31~67 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……..…………………...……….….......406.2 Power Board…….…………..………….…..…….......416.3 IR Board…………………………..……….…….......437. Adjustment……………….……….…………...………447.1 ADC Adjustment……………………..……...………447.2 FW Upgrade.………………………………...………458. Block Diagram.…….................................................489. Wiring Diagram.……...............................................4910. Schematic Diagram………..……..………………...5110.1 Main Board…………….…………………...….......5110.2 Power Board………..…....…………...……….......6110.3 IR Board……………………………….………......63Table of Contents.......……....................................…........1Important Safety Notice.......................................……......2Revision List…………………………………………………31. General Specification.................................………........42. Operating Instructions…………………….……...….......52.1 The Use of Remote Control…….…………...…….......52.2 To Use the Menus…...………………….….………......72.3 Front Panel Control Knobs……………….………......192.4 Peripheral Connection Guide.…..……………….......203. Input/Output Specification…………....................…....224. Mechanical Instructions…………………….................255. Repair Flow Chart ………………………………………336. PCB Layout …………...………………………………...40All manuals and user guides at all-guides.comall-guides.com

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Frequently asked questions

The instructions for using the remote control can be found on page 5 of the manual under section 2.1 'The Use of Remote Control'.

The dimensions of the Haier LE22D3380 with the stand are 20.5" x 15.0" x 21.7". The dimensions without the stand are 20.5" x 13.4" x 1.5"

You should connect a primary source for digital video, such as a Blu-ray player or a set-top box, to the HDMI port on your Haier LE22D3380.

If your Haier LE22D3380 TV does not turn on, first check if the AC input is properly connected and if the power is turned on. If the power is on, check the power board output to see if it is 5/5.2V. If the output is correct, check the IR board and LED. If the IR board is faulty, replace it. If the power board output is not correct, replace the power board. If the issue persists, replace the main board.

To troubleshoot the power issue on your Haier LE22D3380 TV, follow these steps: 1. Check if the AC input is connected and the power is turned on. 2. Verify if the power board output is 5/5.2V. 3. If the output is correct, check the IR board and LED. 4. If the IR board is faulty, replace it. 5. If the power board output is not correct, replace the power board. 6. If the issue persists, replace the main board.

If your Haier LE22D3380 TV has no display and the LED is white, 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 not 'On', check the LVDS cable and reinsert or replace it if necessary. If the LVDS cable is fine, check the Panel Vcc and B/L signal. If the Panel Vcc is 12V and the B/L signal is available, replace the main board. If the power board output is not 24V, replace the power board. If all else fails, replace the panel.

If your Haier LE24D33800 TV shows no display, first ensure that 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 not 'On', check the LVDS cable and reinsert or replace it if necessary. If the LVDS cable is fine, check the Panel Vcc and B/L signal. If the Panel Vcc is 12V and the B/L signal is available, replace the main board. If the power board output is not 24V, replace the power board. If all else fails, replace the panel.

First, check if the keyboard is connected properly and reconnect it if necessary. If the keyboard is connected properly, check if the buttons are functioning correctly. If the buttons are okay, enter the factory mode to do a 'Reset'. If the issue persists, you may need to replace the main board or the keyboard.

To upgrade the firmware, first turn on the TV and plug the prepared USB memory into the USB port on the side of the TV. The TV will detect the valid software. Use the remote control to select 'Yes' to proceed with the firmware upgrade.

The LVDS Cable (395G801313XY35) is used to connect the Power Board to the Panel in the Haier LE22D3380. It facilitates the transmission of video signals between these components.

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