Haier LE39B8550T Service Manual

5544332211D DC CB BA AVGA INPUTSC1_FSO0-2v: TV Mode5-8v: 16:9 AV9.5-12v: 4:3 AVSCARTR164,R165,R166靠近主芯片摆放解决Ypbpr干扰问题YPbPrUSB InterfaceDVD Power电流1000mA为了降低待机功率,DSG客户需要加开关电路DSG时DVD自动吸碟close to ICVIDEO OUTClose to Mstar ICCLOSE TO ICSIDE AVAV INPUTSPDIF OutputClosed to ICVGA Audio INCLOSE TO ICNear MST.ICGround in the middle of the L/RCLOSE TO ICAUDIO OPIHSIVSIVSIVSIVSIVSIVSIVSIVSIVSIVSIVSIVSIVSIVSIVSIVSIVSIVSDDC_SCL_DVGA_VSYNCDDC_SDA_DVGA_HSYNCPrYSC1_FSOPbAV1-LAV-LOUTAV1-RAV-ROUTSC1_FBPbYYPbAV-OUTAV1-VPrAV1-LSC1_FSOAV-ROUTAV1-RAV-LOUTAV1-VAV-OUTSC1_FBPrAV1-VAV1-LAV1-RYINPBINPBINPBINPBINPBINPRINPRINYINYINYINYINYINYINYINYINYINYINYINYINYINYINYINYINYINYINOP_ON/OFFUSB_DM1USB_DP1AV-OUTSIDE-AU-RSIDE-AU-RSIDE-AU-LSIDE_AVSIDE-AU-LSIDE-AU-RSIDE_AVSIDE-AU-LSIDE_AVSPDSPDIF_OUT SPDIFSPDIFSIDE_AVVCC_LNBA VGA_ARIVGA_ALIVCC_LNBAAV-LOUTAV-ROUT+5V_Normal+5V_DVD5VUSB1+5V_Normal 5VUSB1+12V_Normal+12V_NormalVGA-B 4VGA-G 4VGA-R 4VGA-VSYNC 4VGA-HSYNC 4UART_TX 4UART_RX 4SCART-R 4SCART-G 4SCART-B 4SCART-FB 4SCART-FS 4SCART-LIN 4SCART-RIN 4SCART-AV-IN 4YPbPr-Y 4YPbPr-PB 4YPbPr-PR 4OP_ON/OFF 2,3USB1_DM 4USB1_DP 4CVBS_OUT0 4AV-LIN 4AV-RIN 4SPDIF_OUT 4AV 4VGA-Rin_AU 5VGA-Lin_AU 5VCC_LNBA 8AV-AUOUTL0 4AV-AUOUTR0 4TitleSize Document Number RevDate: Sheet ofChange list 1.0MSD3643GSACustom10 10Tuesday, October 11, 2016TitleSize Document Number RevDate: Sheet ofChange list 1.0MSD3643GSACustom10 10Tuesday, October 11, 2016TitleSize Document Number RevDate: Sheet ofChange list 1.0MSD3643GSACustom10 10Tuesday, October 11, 2016R4052.7KRD7910KNC/0RR1391uF/16V/0603C115RD10312KRD7075RR40612KC4161nCD65NC/10PF/50V/NPOR41775RR408 10K8.2KR1334.7KR123CD62100pF/50V/NPORD72 100RRD9910KC185 1uFRD100 10KR41575RQ105A03407J4AV端子/AV1,2P，卧式，橙色，无孔，无屏蔽 COSTDOWNG1 S21uC182RD8275R10kR131J410VGA1234567891011121314151617RD6933R20KR127RD10812KR420 0RR40310KJ12YPbPr Input12356791084J402SCART2468101214161820135791113151719212425RD97 10KCD5433pF/50V/NPOR41675RJ401NC/SCART24681012141618201357911131517192124253904Q812 3R40275RC1140.1uF/16V/X7RC4151nR164 75RRD9810K47KR128R42375RNC/0RR138J421USB-101B12345 6CD60100pF/50V/NPORD10975RC403100p47KR117C402100pR166 75R1uC177CD11710uF/6.3V/X5R/0603R165 75R20KR116C55833pF/50V/NPORD71 100RCD631nF/50V/X7RRD8375RRD96 10K8.2KR122J413AV端子/AV3,黄白红，卧式，孔距14mm，无孔，无屏蔽/堵孔1 12 23 34 45 5776 688C180 1uF4.7KR114R172220KL401FB_11_OHM_500MARD8010KRD8175RJ414NC/AV-JACK-3/AV11223344557766883904Q912 3C417120pFLD12 FB_11_OHM_500MAR40912K10kR11968RR132R40175RRD107 10K68RR121CD641nF/50V/X7RJ33NC/SPDIFOUT-背出1 2C4130.1uF/16V/X7R0.1uFC176J412 12345678C401100pR404 10K

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Frequently asked questions

The resolution of the Haier LE39B8550T TV is 1366x768 pixels.

The response time of the Haier LE39B8550T TV is 20 milliseconds (Gray to Gray).

The device can boot from either SPI_NOR Flash or ROM. The boot configuration is set by the CHIP_CONFIG[1:0] pins, with 2'b01 indicating boot from SPI_NOR Flash and 2'b10 indicating boot from ROM.

The HDMI-ARC (Audio Return Channel) function allows the TV to send audio data back to the receiver or soundbar through the HDMI cable, enabling a simplified setup for audio systems.

The input voltage tolerance for +VDD3V must be under ±5%.

The YPbPr input is used for connecting component video signals. It includes separate inputs for Y (luminance), Pb (blue-difference), and Pr (red-difference) signals. Ensure that the resistors R164, R165, and R166 are placed close to the main chip to resolve any YPbPr interference issues.

If your TV has no sound but the picture is fine, first check if there is a sound input signal. If there is no sound input signal, check the input source. If there is a signal at C220 and C221, check if there is a signal at C601 and C602. If there is no signal at C601 and C602, change U202. If there is a signal at FB11, FB12, FB13, and FB14, check the LD3 voltage. If the LD3 voltage is 12V, change the mainboard. If the problem persists, check the speakers.

If there is no signal at C220 and C221, check if there is a signal at C601 and C602. If there is no signal at C601 and C602, change U202. If there is a signal at FB11, FB12, FB13, and FB14, check the LD3 voltage. If the LD3 voltage is 12V, change the mainboard. If the problem persists, check the speakers.

If your TV does not turn on, first check if the power cord is well connected to the outlet or power board. If it is, check if EC805 has 300V. If it does, power on and check if PD3 has 12V. If PD3 does not have 12V, replace PD3. If the issue persists, check if the Main board, LVDS wire, or Panel are in good condition.

To troubleshoot the power board, follow these steps: 1. Verify if the power cord is connected well. 2. Check if the power cord +5V standby is working. 3. Check if the voltage of the POWER ON/OFF part of the power board is on the high level voltage. 4. Check if there is +12V/+5V output on the power board. 5. Check if the Main board, LVDS wire, and Panel are in good condition.

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