Haier A626 Service Manual

26”&32”&37” LCD TV Haier A626&A632&A637F1ServiceServiceServiceHorizontal Frequency31.5~67 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 SERVICING6.2 Power Board…..…………..………….…..…….......496.3 Key Board………………………..……..……….......536.4 IR Board…………………………..……….…….......547. Adjustment..............................................................558. Block Diagram.…….................................................569. Wiring Diagram.……...............................................5710. Schematic Diagram………..……..………………...5810.1 Main Board…………….…………………...….......5810.2 Power Board………..…....…………...……….......7210.3 Key Board……………….………….………….......7810.4 IR Board……………………………….……….......7911. Exploded View……………………….………….…...8012. BOM List……………….…………………………….87Table 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 Menu…...…………………….………......112.3 How to Connect…….…………………….…..…….....242.4 Front Panel Control Knobs……………….………......293. Input/Output Specification…………....................…....314. Mechanical Instructions…………………….................355. Repair Flow Chart ……………………….…….…….....436. PCB Layout ………………..………………....…..........476.1 Main Board………………..……………...…….….......47

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Frequently asked questions

To use the remote control, refer to section 2.1 of the manual titled 'The Use of Remote Control' on page 5.

To connect the TV, follow the instructions in section 2.3 titled 'How to Connect' on page 24.

If the OSD is unstable or not working, first check if the Key Pad Board is connected normally. If it is, then check if the Button Switch is functioning properly. If both are normal, then you may need to check the Main Board or replace the Key Pad Board.

To troubleshoot the Key Pad Board, first ensure that it is connected properly. If the connection is normal, check if the Button Switch is functioning correctly. If both the connection and the Button Switch are normal, then the Key Pad Board itself might need to be replaced.

To enter the factory mode, turn on the TV, press the MENU key on the remote control, then press the number keys 1, 9, 9, 9 in sequence.

For PC mode, set TIM to 137 and PAT to 42. For COMPONENT mode, set TIM to 316 and PAT to 185.

The 'SKD ASS'Y 32' is a component in the Haier A626&A632&A637F TV models. It is located at U708. The specific function of this component is not detailed in the provided content, but it is likely a structural or assembly part.

The Haier A626 Service Manual lists various model numbers including R791, R793, R799, R7827, R400, R163, R317, R123, R162, R152, R151, R117, R122, R321, R7838, R216, R651, R172, R115, R107, R158, R619, R621, R124, R7822, R350, R352, R411, R412, R414, R213, R7819, R507, R505, R130, R387, R384, R106, R104, R7845, R445, R174, R624, R654, R655, R679, R680, R623, R436, R435, R421.

The different models of LCD TVs listed in the Haier A626 Service Manual include 26", 32", and 37" LCD TVs with model codes such as C762, C670, C669, C671, C672, C674, C678, C688, C689, C723, C153, C155, C168, C175, C216, C334, C335, C374, C402, C421, C418, C415, C414, C407, C406, C405, C404, C363, C373, C756, C755, C754, C703, C701, C601, C584, C557, C555, C552, C362, C351, C332, C326, C320, C319, C275, C255, C237, C234, C231, and C214.

The model codes for the Haier A626, A632, and A637F LCD TVs are listed as 065G0805106A7Z and 065G0805475A7Z.

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