Haier LY19Z6 Service Manual
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Haier LY19Z6 Service Manual

Haier LY19Z6 Service Manual

18.5″&23.6″ led tv
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18.5"&23.6" LED TV
Service
Service
Service
Table of Contents...........................................................1
Important Safety Notice..................................................2
Revision List.........................................................3
1. General Specification.................................................4
2. Operating Instructions..........................................5
2.1 The Use of Remote Control..................................5
2.2 To Use the Menus...............................................5
2.3 Front Panel Control Knobs...................................5
2.4 How to Connect.................................................5
3. Input/Output Specification.........................................6
4. Mechanical Instructions..........................................9
5. Repair Flow Chart.............................................17
6. PCB Layout.......................................................24
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

TABLE OF CONTENTS

Page Description
6.1 Main Board....................................................24
6.2 Power Board..................................................28
6.3 Key Board.....................................................30
6.4 IR Board.......................................................31
7. Adjustment/FW Upgrade/EDID...........................32
8. Block Diagram........................................................43
9. Wiring Diagram......................................................44
10. Schematic Diagram........................................47
10.1 Main Board..................................................47
10.2 Power Board................................................61
10.3 Key Board...................................................63
10.4 IR Board.....................................................65
SAFETY NOTICE
1
Haier LY19Z6&LYF24Z6
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Summary of Contents for Haier LY19Z6

  • Page 1: Table Of Contents

    18.5″&23.6″ LED TV Haier LY19Z6&LYF24Z6 Service Service Service TABLE OF CONTENTS Description Page Description Page 6.1 Main Board………..…………………...…….…..24 Table of Contents..……...........1 6.2 Power Board…..…………..………….…..……..28 Important Safety Notice..........…...2 6.3 Key Board………………………..……..………..30 Revision List………………………………………..…….…3 6.4 IR Board…………………………..……….……..31 1. General Specification........……..4 7. Adjustment/FW Upgrade/EDID……………...………32 2.

  • Page 2: Important Safety Notice

    Important Safety Notice Proper service and repair is important to the safe, reliable operation of all Haier Company Equipment. The service procedures recommended by Haier and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose.

  • Page 3: Revision List

    Revision List Version Release Date Revision Instructions Customer Model Model LY19Z6 E19A22NBWNH72N Sep.16,2010 Initial release E24A62NBWNH72N Nov.18,2010 Add the new model E24A62NRWNH6NN Add new power board LYF24Z6 715G4820P02000004S E24A62NBWNH92N Update are as below: May.9,2011 Repair Flow Chart PCB Layout E24A62NRWNH9NN...

  • Page 4: General Specification

    1. General Specification Model No. LY19Z6 LYF24Z6 DISPLAY Aspect Ratio 16:9 16:9 Resolution 1366 x 768 1920 x 1080 ENHANCEMENTE Sound Output (RMS Watts) 2 x 3 W 2 x 3 W Sound Mode Speech, Personal, Music Picture Formats Auto, Normal, Wide, Zoom 1, Zoom 2, Native (only in HDMI mode)

  • Page 5: Operating Instructions

    2. Operating Instructions For this chapter, pls refer to the user manual attached with this service manual.

  • Page 6: Input/Output Specification

    3. Input/Output Specification 3.1 Input Signal Connector Pin No. Signal Green Blue UART-TX Red GND Green GND Blue GND +5V (supply from PC) Sync GND UART-RX Bi-directional data (SDA) H-sync V-sync (vclk) Data clock (SCL) HDMI Pin No. Signal TMDS Data2+ TMDS Data2 shield TDMS Data2- TMDS Data1+...
  • Page 7 Full SCART Pin No. Signal Audio output B (right) Audio input B (right) Audio output A (left) Ground (audio) Ground (blue) Audio input A (left) Blue input Function select Ground (green) Comms data 2 Green input Comms data 1 Ground (red) Ground (blanking) Red input or Chroma RGB switching control...
  • Page 8 3.2 Input Signal Mode Video input format Physical Inputs Format PAL from RF 720 x 576 @50i SECAM from RF 720 x 576 @50i 720 x 576 @50i Side, SCART (CVBS,RGB and Y/C) 720 x 480 @60i 720 x 480 @60i 720 x 480 @60p 720 x 576 @50i 720 x 576 @50p...

  • Page 9: Mechanical Instructions

    Note: Below is the main process for disassemble only. And maybe some of the pictures are a little difference with the original TV, for reference only. LY19Z6 Step1. Unscrew the 4 screws to remove the STAND ASS'Y. Step2. Unscrew the 6 screws to remove the REAR COVER.
  • Page 10 Step3. Remove the all the detachable CON/WIRES and AC COVER ASS’Y. Note: Yellow frame are for CON/WIRES; Red circle is for AC COVER ASS’Y. Step4. Unscrew the 13 screws as red circle to remove HINGE BKT, AC BKT, POWER BD and DVD; Disconnect the DVD HARNESS as yellow frame.
  • Page 11 Step5. Unscrew the 11 screws as red circle to remove MAIN BD, KEY COVER, BKT and Side_I/O BKT.
  • Page 12 Step6. Separate the BEZEL, PANEL and KEY BD; Disconnect the FFC CABLE. The PANEL.
  • Page 13 LYF24Z6 Step1. Unscrew the 4 screws to remove the STAND ASS'Y. Step2. Unscrew the 6 screws to remove the REAR COVER.
  • Page 14 Step3. Remove the all the detachable CON/WIRES, AC COVER ASS’Y and HINGE BRACKET. Note: Yellow frame are for CON/WIRES; Red circle is for AC COVER ASS’Y and HINGE BRACKET. Step4. Unscrew the 17 screws as red circle to remove AC BKT, BKT, POWER BD, MAIN BD and DVD;...
  • Page 15 Step5. Unscrew the 3 screws as red circle to remove BKT, KEY BD and KEY COVER.
  • Page 16 Step6. Separate the BEZEL and PANEL.

  • Page 17: Repair Flow Chart

    5. Repair Flow Chart 1. No power No power (LED “Off”) Check the AC input and Power “On” the power is “ON”? Power board output=5V? Replace the power board Check the IR board and LED Replace the IR board Replace the main board...
  • Page 18 2. Can’t start Can’t start（No LED） Replace the power board Power board output＝5V? Replace the key board Check the power key is under control? Replace the IR board Check the IR receiver is normal? Replace the main board Replace the Power board...
  • Page 19 3. Abnormal Display Abnormal Display Reset the source Check the source Enter factory mode to do “EEPROM initial”&“Reset” Replace the main board Check the main board Check the LVDS cable Replace the LVDS cable Check the panel Replace the panel...
  • Page 20 4. No display No display (LED blue) Check TV is under control and power Replace the main board on/off by remote control and power key? Check the backlight is “On”? Check the LVDS cable Check the B/L signal is available? Reinsert or replace the LVDS cable Replace main board...
  • Page 21 5. Sound problem No sound or sound abnormal Check the audio source connection and the TV system are correct? Reinsert the audio cable or change the TV system Check the TV is muted, adjust the volume or enter the menu to reset? Enter factory mode to do “Reset”...
  • Page 22 6. Remote control malfunction Remote Control malfunction Check the remote control battery is Replace the battery not properly placed or no power? Use the other remote controls Replace the remote control Whether the IR board is Replace the IR board abnormal? Replace the main board...
  • Page 23 7. OSD is unstable or can’t work normally OSD is unstable or can’t work normally Reconnect the key board Key board connected properly? Replace the button function Buttons are OK? Replace the key board Key board is OK? Enter factory mode to do “Reset” Replace the main board...

  • Page 24: Pcb Layout

    6. PCB Layout 6.1 Main Board 715G4035M0A001005F...

  • Page 28: Power Board

    6.2 Power Board 715G4051P01000004S...
  • Page 29 LYF24Z6 715G4820P02000004S...

  • Page 30: Key Board

    6.3 Key Board 715G4251K01000004S 715G4168K02000004S...

  • Page 31: Ir Board

    6.4 IR Board 715G4169R01001004S...

  • Page 32: Adjustment/Fw Upgrade/Edid

    7. Adjustment/FW Upgrade/EDID 7.1 Adiustment It’s no need to adjust the white balance for this model. 1. Enter into the factory mode: Turn on the TV, press MENU key with remote control, then press number key 1 9. It will achieve the factory mode.
  • Page 33 7.2 FW Upgrade Haier MTK5363 FW upgrade with USB SOP Step 1: Ready for F/W Upgrade 1.1 Change the software file name to ”upgrade.pkg” ,eg: Before change: After change: 1.2 Prepare a USB memory (The file system of USB memory must be FAT16 or FAT 32).
  • Page 34 2.3 Press the power key on the Remote Control or the right side of TV to turn on TV.                             Figure 2.3 2.4 When TV detects the USB memory, the LED light flickers as figure 2.4.1. For a moment there is a prompt frame appearing on the screen as figure 2.4.2, press “OK”...
  • Page 35 Figure 2.4.3 2.5 TV will upgrade automatically. Note: When Upgrade on the process, please don’t Power-Off! Figure 2.5 2.6 When upgrade 100% and prompt for Upgrade Success info, remove the USB Drive and press “power” key to reset TV. Figure 2.6...
  • Page 36 Step 3: Check the F/W version and reset to default. 3.1 Press “MENU”+”1”+”9” +”9” +”9” key rapidly on the Remote control to enter the factory mode. Do the following steps rapidly: 1. Press “MENU/ENTER”; 2.Press”1”+”9” +”9” +”9”; Figure 3.1 3.2 Check the F/W version on the second row of the factory mode info (eg: the “Ver” info is V2.03). If F/W version is incorrect, please check the version of F/W in your USB memory, else let’s go to Step 3.3.
  • Page 37 3.3 If the FW version is correct, please do factory reset. Choose item 30 “Reset” and press “ok” key to do factory reset as figure 3.3.1 Figure 3.3.1 Note: You can also check the FW version in user mode by pressing “MENU/EXIT” on remote control, as 3.3.2 Figure 3.3.2 3.4 After all the steps, FW upgrade is finished finally.
  • Page 38 7.3 The Writing VGA & HDMI EDID Take LY19Z6 only for example as below. Step1. Ready for writing EDID Tool: 715G2005-C2 Cable: a LPT cable, a VGA cable, a DVI to HDMI cable and a 12V DC adapter. 715G2005-C2 male to male LPT cable...
  • Page 39 Step3. Install TPV EDID tool. 1. Double click this icon to install. 2. Double click this icon to run. This red frame contents detail information in VGA EDID file. 1. Click here to open this interface. 4. Click here to Read the file 3.
  • Page 40 Step4. Click “FPD” to open another interface as follows. 1. Tick LPT1 2. Click here to read file as figure 4.2 2. Click “open” to read the “.dat” file. Figure 4.2...
  • Page 41 Step5. Click “write EDID” to write EDID. If display “NG” in the yellow blank, which represent writing failly. Please check the whether the connection of tool and cables is nomal and retry. Another way is to change a new ISP board and retry. 2.”OK”...
  • Page 42 Step6. Write HDMI EDID. Connection for writing HDMI EDID. Connect to TV HDMI port. Connect to PC LPT port. 12V DC input Note: When writing HDMI EDID, the TV must be AC on, or the process can’t continue, and will prompt “NG” info.

  • Page 43: Block Diagram

    8. Block Diagram...

  • Page 44: Wiring Diagram

    9. Wiring Diagram LY19Z6 Panel To panel FFC Cable To DVD Power BD 6 Pin 13 Pin 4 Pin CN4071 CN701 CN601 30 Pin CN4073 Scaler IC Main BD CN902 MT5363LICG (U401) CN4072 CN401 CN BD CN016 CN402 3 Pin...
  • Page 45 LYF24Z6 Power Board: 715G4051P01000004S Panel To panel FFC Cable To DVD Power BD 6 Pin 13 Pin 4 Pin CN4071 CN701 CN601 30 Pin CN408 Scaler IC Main BD CN902 MT5363LICG (U401) CN4072 CN401 CN BD CN016 CN402 3 Pin IR BD Speaker Speaker...
  • Page 46 LYF24Z6 Power Board: 715G4820P02000004S Panel HARNESS: To panel 095G801830X917 HARNESS: To DVD 095G801313X680 Power BD 6 Pin 13 Pin 4 Pin CN4071 CN701 CN601 30 Pin CN408 Scaler IC Main BD CN9002 MT5363LICG (U401) CN4072 CN401 CN BD CN016 CN402 3 Pin IR BD Speaker...

  • Page 47: Schematic Diagram

    10. Schematic Diagram 10.1 Main Board 715G4035M0A001005F 02. POWER-1 10,13 +24V_16V 3,6,8 +5V_STB 3,4,6,8,9,11,12,13,14 +5V_SW EU MT5363 - 4 LAYERS 3,4,5,6,8,9,12,13,14 DV33 DV18_DDR DV11 3,8,12,14 DV33SB PWR_12V PWR_24V_16V STB_PWR_5V 3,4,5,6,7,8,9,10,11,12,13,14 BRIGHT_ADJ: STANDBY: POWER Control Interface Brand STB_PWR_5V FB701 120R/3000mA +5V_STB Normal:Max:+3V3, Min:0V Normal: High +5V_STB...
  • Page 48 03. POWER-2 U750 2,6,8 +5V_STB +5V_SW AV33 +5V_STB DV33SB G1117-33T43UF +5V_TUNER 2,4,6,8,9,11,12,13,14 +5V_SW 2,4,5,6,8,9,12,13,14 DV33 U751 6,12,14 AV33 Ver.C IC G903T63UF 0.6A/3.3V SOT-223 8,12,14 DV33SB VOUT 4,5,6,7,12,14 AV12 PWR_12V C761 C762 PANEL_VCC 1UF16V 100uF 16V C765 C767 10uF 16V 10uF 16V 2,4,5,6,7,8,9,10,11,12,13,14 +5V_SW TO AV33 LVDS Control Interface...
  • Page 49 C1019 NC/75OHM1/16W NC/75OHM1/16W C1026 33P 50V NC/47pF 50V DV12_VADC SMD/0402 SMD/0402 AV12 C1096 C1095 GND_Tuner 100N 16V 10uF 6.3V SMD/0402 DVB-C module for Haier mode R1034 DV33_DVBC TUNER_DATA_Demod TUNER_DATA NC/0R05OHM1/16W R1037 R1036 TVAVLID R1059 CI_INVALID NC/4.7K1/16W NC/4.7K1/16W 0R05OHM1/16W R1038 R1045...
  • Page 50 05. MT5362 BYPASS/TRAP. FB4000 U401A 120R/3000mA AV12 AVDD1V25_PLL AVDD1V25_PLL AG30 DVSS AVDD12_APLL AH33 2,3,4,6,8,9,12,13,14 DV33 DVSS AVDD12_ADCPLL AG32 3,6,12,14 AV33 DVSS AVDD12_SY SPLL AB15 AF29 C4000 C4001 3,4,6,7,12,14 AV12 DVSS AVDD12_TVDPLL 100N 16V 100N 16V DV11 DVSS SMD/0402 SMD/0402 DVSS AH29 DVSS AVSS12_PLL...
  • Page 51 06. MT5362 PERIPHERAL/USB2.0 2,3,4,8,9,11,12,13,14 +5V_SW 2,3,8 +5V_STB U401F 2,3,4,5,8,9,12,13,14 DV33 Near IC Near IC 3,12,14 AV33 AVDD3V3_REFP_AADC AA36 VGA_L_In 3,4,5,7,12,14 AV12 AVDD33_REF_AADC AIN6_L_AADC AVDD3V3_ADAC0 AF33 Y 37 VGA_R_In AV33 AV33 AVDD33_ADAC0 AIN6_R_AADC AVDD3V3_ADAC1 R4056 AVDD33_ADAC1 AVDD3V3_AADC AVDD3V3_AADC AVDD3V3_ADAC0 Y 31 0R05 1/10W AVDD33_AADC AA34...
  • Page 52 07. DDR2 MEMORY DV18_DDR 3,4,5,6,12,14 AV12 DV11 DDR2 Interface 2,3,4,5,6,8,9,10,11,12,13,14 U402 RP4100 U403 RP4104 56R 1/16W 5% 56R 1/16W 5% RDQ0 1_A0 1_A8 RDQ16 2_A0 2_CAS# RCAS# U401B RDQ1 1_A1 1_A13 RA13 RDQ17 2_A1 2_A0 RDQ2 1_A2 1_A0 RDQ18 2_A2 2_A13 RA13 DV18_DDR...
  • Page 53 PDD0 I/O0 R4188 Enable: Low 4.7K1/16W Dis able(Stand_By): High R4185 DV33 LED_R#: POCE0# 4.7K1/16W For Haier Lighting Bar USE HY27US08281A-TPCB Enable(Stand_By): Low DV33SB Dis able: High LED_G: R4163 R4161 FB4152 For flas h function when NC/16K 1/10W 5% NC/1K 1/10W...
  • Page 54 09. CI CARD 2,3,4,6,8,11,12,13,14 +5V_SW 3,8,12,14 DV33SB 2,3,4,5,6,8,12,13,14 DV33 PWR_12V U401H CLOSE TO CI CONNECTOR SY STEM_REST CI_PWR_EN OPWM0 GPIO0 M_OPWM1 CI_OCP 2,3,4,5,6,7,8,10,11,12,13,14 OPWM1 GPIO1 BL_DIMMING RF_AGC_TUNER OPWM2 GPIO2 M_CI_INDATA1 GPIO3 +5V_SW CI_A14 GPIO4 M_CI_INDATA2 GPIO5 CI_WE# LVDS Control Interface GPIO6 M_CI_INDATA3 GPIO7...
  • Page 55 10. SCART1 2,3,6,8 +5V_STB 2,3,4,5,6,8,9,12,13,14 DV33 2,13 +24V_16V NEAR IO CONNECTOR NEAR MT5363 C1059 2,3,4,5,6,7,8,9,11,12,13,14 10uF 16V SCT1_AUR_IN SCART1_R_In R1065 30KOHM 1/16W +/-5% C1069 NC/10N 50V C1065 SMD/0402 R1073 47N16V ZD1069 Audio Input R1072 100OHM1/16W SMD/0402 NC/VPORT0603100KV05 SCT1_AV_IN 0R05OHM1/16W SMD/0402 CVBS3P Monitor_Out_R Monitor_Out_L...
  • Page 56 11. YPBPR/ VGA/ SIDE AV INPUT NEAR YPBPR CONNECTOR NEAR MT5363 2,3,4,6,8,9,12,13,14 +5V_SW 2,3,4,6,8,9,12,13,14 DV33 YPbPr L/R INPUT C1153 NEAR YPBPR CONNECTOR R1156 1.5nF 50V 0R05OHM1/16W SMD/0402 2,3,4,5,6,7,8,9,10,12,13,14 FB1158 SOY 1 CN111 80 OHM R1168 Y _IN_1 18 OHM +-5% 1/16W C1164 Y _IN_1 Y 1P...
  • Page 57 12. HDMI1/HDMI2 INPUT 2,3,4,6,8,9,11,13,14 +5V_SW 2,3,4,5,6,8,9,13,14 DV33 3,8,14 DV33SB 3,6,14 AV33 +5V_SW 3,4,5,6,7,14 AV12 CN501 HDMI D506 2,3,4,5,6,7,8,9,10,11,13,14 BAS316 RX2_2+ D2 Shield RX2_2- FB501 RX2_1+ 600R/500mA HW Serap Seeting D1 Shield RX2_1- HPLUGP2_5V RX2_0+ 5,8,11 M_OPCTRL3 C511 D0 Shield RX2_0- 100N 16V RX2_C+ SMD/0402...
  • Page 58 13. AUDIO AMP/HEADPHONE OUT AMP_MUTE: [AOSDATA1] Close to 3110 2,3,4,6,8,9,11,12,14 +5V_SW Philips :<26" AUDIO_MUTE: [OPCTRL4] Philips 26" 2,10 +24V_16V Item :<26" 2,3,4,5,6,8,9,12,14 DV33 NORMAL: Low 3,8,12,14 DV33SB C614 MUTE: High PWR_24V_16V R629 100K DV33 1N 50V STB_PWR_5V Shutdown SMD/0402 2,3,4,5,6,7,8,9,10,11,12,14 DV33 DV33SB AUDIO_VDD...
  • Page 59 14. LVDS OUTPUT LY19Z6 PANEL_VCC 2,3,4,6,8,9,11,12,13 +5V_SW 3,8,12 DV33SB 2,3,4,5,6,8,9,12,13 DV33 3,6,12 AV33 TP402 TP412 3,4,5,6,7,12 AV12 DV11 TP403 TP413 2,3,4,5,6,7,8,9,10,11,12,13 TP404 TP414 Single Signal LVDS Control Interface TP405 TP415 TP406 TP416 BL_ON/OFF BL_DIMMING CONN R420 BRIGHT_ADJ Dual signal TP407...
  • Page 60 LYF24Z6 TP402 TP412 TP403 TP413 PANEL_VCC 2,3,4,6,8,9,11,12,13 +5V_SW TP404 TP414 3,8,12 DV33SB 2,3,4,5,6,8,9,12,13 DV33 3,6,12 AV33 3,4,5,6,7,12 AV12 TP405 TP415 DV11 TP406 TP416 Single Signal 2,3,4,5,6,7,8,9,10,11,12,13 TP407 TP417 TP408 TP418 LVDS Control Interface NC/CONN R420 Dual signal 0R05OHM1/16W R419 TP409 TP419 NC/0R05OHM1/16W AV33...

  • Page 61: Power Board

    10.2 Power Board 715G4051P01000004S +19V FB903 CONN Q921 +43V L904 D904 BEAD 100UH B360B R913 56K +-5% 1/8W C925 D901 CN901 AO4435 180K +-5% 1/8W SM4001A 47UF 25V R914 C927 C916 1U25V C915 0.1UF C920 120UF 63V R922 R924 470NF 25V 20K 1/4W R923 20K 1/4W...
  • Page 62 LYF24Z6 715G4820P02000004S L8502 +19V 47UH Vout CN9001 L8501 Q9401 093G 60S932 C8505 R8518 1R 1/10W 5% 220N 50V R8517 1R 1/10W 5% R8516 1R 1/10W 5% Q8501 D8501 C8503 R8515 1R 1/10W 5% C8502 C9501 B3100B C8506 CN8501 R9402 0.1uF 50V 100uF 50V 33UF 100V 220N 50V...

  • Page 63: Key Board

    10.3 Key Board 715G4251K0D000004S CN051 D051 CONN BAS316 OPEN/CLOSE STOP NEXT PREV PLAY/PAUSE...
  • Page 64 715G4168K02000004S VOL- VOL+ CN016 KEY 1 C024 C023 100N 50V 100N 50V CONN 3P 1.25MM LOCK ----><----| ----><----| ----><----| ----><----| C019 C020 C021 C022 NC/100N 50V NC/100N 50V NC/100N 50V NC/100N 50V R016 R017 R018 R019 11KOHM +-5% 1/10W 4.3KOHM +-5% 1/10W 1.8KOHM +-5% 1/10W 470 OHM +-5% 1/10W POWER...

  • Page 65: Ir Board

    10.4 IR Board 715G4169R0A001004S CONN CN201 KSM-603TM2M IRRV IRRV VOUT R201 15K 1/10W U201 ----><----| C201 ZD1151 0.1uF 16V VPORT0603100KV05 33G8032 4F HR...

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