Haier LT32F6 Service Manual

Also see for LT32F6:

32″LCD TV Haier LT32F61ServiceServiceServiceHorizontal Frequency30-65 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 SERVICING6.5 LED Board……………………..……..……….....317.Adjustment……………….……….………….....….327.1 WB Adjustment………...……………..……...….327.2 FW Upgrade.………………………………...…..337.3 The Writing VGA & HDMI EDID….………....…388.Block Diagram.……............................................439.Wiring Diagram.……..........................................4510.Schematic Diagram………..……..……………...4610.1 Main Board…………….…………………...…...4610.2 Power Board………..…....…………...………..5910.3 Key Board……………….………….…………...6110.4 IR Board……………………………….………...6210.5 LED Board……………………..……..………....63Table of Contents.......……....................................…..1Important Safety Notice.......................................……2Revision List……………………………………………....31.General Specification.................................………..42.Operating Instructions…………………….……...…...53.Input/Output Specification…………....................….94.Mechanical Instructions……………………..............125.Repair Flow Chart …………………………………....166.PCB Layout …………...………………………………236.1 Main Board………..…………………...……….…..236.2 Power Board……..…………..………….…..……..276.3 Key Board………………………..……..…………...306.4 IR Board…………………………..…………….......30

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Frequently asked questions

If the LED indicator on your Haier LT32F6 TV is off, follow these steps: Ensure the AC input is connected and the power is 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.

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 ensure the B/L signal is available. If the LVDS cable is faulty, reinsert or replace it. If the power board output is not 24V, replace the power board. If the panel Vcc is not 12V, replace the panel. If none of these steps work, replace the main board.

If your Haier LT32F6 TV is not displaying anything 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 ensure the B/L signal is available. If the LVDS cable is faulty, reinsert or replace it. If the power board output is not 24V, replace the power board. If the panel Vcc is not 12V, replace the panel. If none of these steps work, replace the main board.

You should not power off the TV during the upgrade process. If you do, it may interrupt the upgrade and cause issues with the TV's functionality.

After seeing the 'Upgrade Success' message, remove the USB drive and press the 'power' key to reset the TV.

To write VGA & HDMI EDID for the Haier LT32F6, you will need the 715G2005-C2 tool, a male to male LPT cable, a VGA cable, a DVI to HDMI cable, and a 12V DC adapter.

The DDR2 Interface in the Haier LT32F6 is used to connect and manage the DDR2 memory modules. It includes various pins and components such as RDQ0 to RDQ15, RDQM0 to RDQM3, and RDQS0 to RDQS3, which are essential for data transfer and control signals.

The DDR2 memory section of the Haier LT32F6 involves several components including U402, U401B, C2, G14, B1, AF3, R2, R4, E4, G6, AE4, H7, R6, B13, AD7, E14, D13, AE2, F5, C12, E12, AC6, F13, D3, AD5, AF1, J14, AV1V25_MEMPLL, P13, T13, TP4100, TP4101, K5, K7, RVREF3, P7, N8, RCKE, K1, RCLK0, RCLK0#, B3, A2, RCLK1, RCLK1#, AD1, AD3, RODT, RRAS#, RCAS#, RCS#, RWE#, N6, P5, L2, P3, K3, R4108 100OHM1/16W AB5, SMD/0402, RBA0, RBA1, RBA2, H3, J2, H1, VCC2IO, and various other pins and components listed in the manual.

The SCART1 and SCART2 connectors have specific voltage requirements. SCART1/SCART2 have +5V_STB and +5V_SW voltages. Additionally, there are references to +24V and +12V in the context of these connectors.

The SCART2 AUDIO IN and SCART2 AUDIO OUT functions are associated with components such as D1059 (BAS316), SCT2_AUL_IN, SCT2_AUL_OUT, and various resistors and capacitors like R1092 (330 OHM 1/10W), C1098 (4U7 16V), and R1096 (330 OHM 1/10W).

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