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Haier
This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does
not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products
powered b electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the
product deal with in this service information by anyone else could result in serious injury or death.
Model No. : HL19KN1
CHASSIS:
WARNING
2009 (Qingdao Electronics
All rights reserved. Unauthorized copying and distribution is a violation of
law.
1
COLOR TV
MST721
limited company
)

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   Summary of Contents for Haier HL19KN1

  • Page 1

    Haier COLOR TV Model No. : HL19KN1 CHASSIS: MST721 WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered b electricity should be serviced or repaired only by experienced professional technicians.

  • Page 2: Table Of Contents

    CONTENT Tableofconents …………………………………………………………………………..………..2 General Information…………....……………………………………………………..3 1.1. General Guidelines...…………………………………………………………………..3 1.2. Important Notice…………………………………………………………………………..3 1.3. How To Read This Service Manual………………………………………………… 2. Speciflcations……………………………………………………………………………..5 3. Location Of Controls And Components…………………………………....…..7 3.1Board Location……………………………….. ………………………………….……..7 3.2 Main Board…………….……………………………….. ………………………………...8 3.3 Power Board……………………………….. …………………………………………...12 3.4 Lcd Panel……………………………….. …………………………………………….…13 4.Disassemble And Assemble…………………………………………………………..…14 5.

  • Page 3: General Information

    1. General Information 1-1 General Guidelines When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

  • Page 4: How To Read This Service Manual

    1-2-6. Safety Check after Repairment Confirm that the screws ,parts and wiring which were removed in order to service are put in the original positions, or whether there are the portions which are deteriorated around the serviced places serviced or not. Check the insulation between the antenna terminal or external metal and the AC cord plug blades.

  • Page 5: Speciflcations

    A “reference” guides the reader to other places in this binder or in this manual, where he/she will find additional information on a specific topic. 2. Specification HL19KN1 Model 18.5 inch Screen size 16:9 Aspect ratio 400cd/m2 Brightness 800:1 Contrast Ratio...

  • Page 6

    Y P B P R Monitor out D-SUB jack DVI socket HDMI SCART jack Windows Menu pc automatic adjust movie mode Semitransparent menu ZOOM 16:9 mode ADVANCED 4:3 3A WINDOWS Nation Select Channel List Input Frequency by Manual and Channel Number Input Lock TELTEXT...

  • Page 7: Location Of Controls And Components

    Audio output power(outer)(W) Total power input(W) AC150V~AC240V Voltage range(V) 50~60Hz Power frequency(Hz) 240Min Time of sleep timer(MINS) 4.67 Net weight(KG) 5.73 Gross weight(KG) 471/189/411 Net dimension(MM) 530/225/460 Packaged dimension(MM) 3. LOCATION OF CONTROLS AND COMPONENTS 3.1. Board Location...

  • Page 8: Main Board

    Parts number Description A Board MainBoard Assembly B Board Power adaptor Speaker 3.2.A.Board----MainBoard 3.2. 1 Function Description: Main Board:...

  • Page 9: Connector Definition

    Process signal which incept from exterior equipment,then translate into signal that panel can display. 3.2.2 Connector definition Main board connector LCDS Connector (CN2) Signal Pin number name Description LCD-VDD Supply voltage to Panel LCD-VDD Supply voltage to Panel LCD-VDD Supply voltage to Panel Ground Ground...

  • Page 10

    Ground RXO0- LVDS ODD 0– Signal RXO0+ LVDS ODD 0 + Signal RXO1- LVDS ODD 1 - Signal RXO1+ LVDS ODD 1 + Signal RXO2- LVDS ODD 2 - Signal RXO2+ LVDS ODD 2 + Signal Ground Ground RXOC- LVDS ODD Clock - Signal RXOC+ LVDS ODD Clock +...

  • Page 11

    Power supply and Inverter Connector(CN10) number Signal name Description ON/OFF Preparative switch control Ground Ground INVERTER Lightness Adjust BLON INVERTER Switch Control +12V Power +12V Power Connector(CN11) Audio Output number Signal name Description LSPK Left Audio Output Ground Ground RSPK Right Audio Output Remote Board and Key board Connector(CN15)...

  • Page 12: Power Board

    Connector MENU Connector P- Connector P+ Connector V- Connector V+ Connector SOURCE 3.3B Board-------(Power Board) Supply power for Main board and Panel Power supply and Inverter Connector(CN6) number Signal name Description ON/OFF Preparative switch control Ground Ground INVERTER Lightness Adjust BLON INVERTER Switch Control...

  • Page 13: Lcd Panel

    +12V Power +12V Power AC150V~AC240V Input (CN6) Power supply for panel (CN2. CN3. CN4. CN5.) 3.4. LCD PANEL.

  • Page 14: Disassemble And Assemble

    4.DISASSEMBLE AND ASSEMBLE...

  • Page 15

    HL19KN1 KNOCKED-DOWN SHOW...

  • Page 19: Installation Instructions

    5. INSTALLATION INSTRUCTIONS Accessories Remote Control User Manual Battery Audio wire...

  • Page 24: Operation Instructions

    6. OPERATION INSTRUCTIONS Basal information 6.1 Front panel controls 6.2 Back panel controls...

  • Page 26: Universal Remote Controller

    6.3 Setting up Your Remote Control...

  • Page 27: Measurements And Adjustments

    7. MEASUREMENTS AND ADJUSTMENTS How to use The way to the factory mode menu: 1st, press call, 2en, yellow Bond followed by red, green, button ,press call again, Finished these operations , system will be into the factory mode menu. useable key: 1.menu: show the next menu page 2.p+/p-: select function...

  • Page 28

    Press the button of OK to quit the factory menu...

  • Page 29: Electrical Parts

    8 Electrical Parts 8.1 Connective Wire Photo 8.2 Circuit Diagram...

  • Page 30

    +12VU 10uH/4A 10uH/4A 5VSTB POWER MP1482 MP1482 NC/FB NC/FB +12VU +12VU CON1 CON1 100K 100K VCC-Panel NC/FB NC/FB +3.3V_MST AO4803A AO4803A COMP +12VA NC/IN4148 NC/IN4148 5VSTB BL-ON/OFF BL-ON/OFF BL-ADJUST 10uF/16V 10uF/16V BRI_ADJ 470uF/16V 470uF/16V 0.1uF 0.1uF 3.9n 3.9n 0.1uF 0.1uF 0.1uF 0.1uF 220uF/16V...

  • Page 31

    VDDP DVD_Y/C 5VSTB DVD_AUDIO CON3 CON3 CON4 CON4 Y_DVD NC/4.7K NC/4.7K 4.7K 4.7K 4.7K 4.7K DVD_L C_DVD DVD_R Y_DVD 47nF 47nF S-Y2 S-Y2 IR_DVD DVD_Status DVD_Status CON3_2.0 CON3_2.0 100R R28 100R 2N3906 2N3906 CON7_2.0 CON7_2.0 IR_in IR_in C_DVD 47nF 47nF S-C2 S-C2 兼容克隆接口...

  • Page 32

    Close to Mstar IC 100R 100R NC/100R NC/100R HDMI_5V 100R 100R 5VSTB NC/100R NC/100R ZD14 ZD14 ZD13 ZD13 ZD17 ZD17 ZD15 ZD15 ZD16 ZD16 ZD18 ZD18 ZD19 ZD19 VGA_B 47nF 47nF VGA-B+ VGA_G 47nF 47nF VGA-G+ 4.7K 4.7K VGA_R 47nF 47nF 4.7K 4.7K...

  • Page 33

    I2C ADDRESS(R263 NC): READ is 0X87 +5V_Tuner WRITE is 0X86 +5V_Tuner R118 R118 R119 R119 R120 R120 4.7K 4.7K 4.7K 4.7K 4.7K 4.7K R121 R121 R122 R122 AGND TUNER_IF TUNER_IF R123 R123 AGND AGND IF-AGC 2N3904 2N3904 4MHz 4MHz NC/10nF NC/10nF CA15 CA15...

  • Page 34

    5VSTB R160 R160 CON10 CON10 IR_in IRin IC POWER IR_in R161 R161 LED_GRE CRYSTAL 100R 100R +3.3V_MST +3.3V_MST VDDP 100pF 100pF R162 R162 LED_RED 22pF 22pF R163 R163 12MHZ 12MHZ R164 R164 GVON GVON R165 R165 GVOFF R167 R167 R168 R168 GVOFF 2.2uF...

  • Page 35

    +5V_Tuner I2S DAC (option) C114 C114 C115 C115 10uF 10uF 0.1uF 0.1uF 0R RP11 RP11 C116 2.2uF C116 2.2uF R212 R212 470R 470R HDMI_Rout AOUTLR AU_SD SDATA AU_SCLK DEM/SCLK C117 2.2uF C117 2.2uF R213 R213 470R 470R HDMI_Lout AU_WS LRCK AOUTL AU_MCLK MCLK...

  • Page 36

    TDA1517P R227 R227 TDA1517P TDA1517P 3.3K 3.3K R228 R228 CON4_2.5 CON4_2.5 470R 470R C146 2.2uF C146 2.2uF AMP-L INV1 CA26 CA26 SP_L1 SP_L2 OUT1 R229 R229 470uF/16V 470uF/16V 470R 470R C147 2.2uF C147 2.2uF AMP-R INV2 CA27 CA27 470uF/16V 470uF/16V SP_R1 SP_R2 OUT2...

  • Page 37

    R244 R244 0805/0R 0805/0R VCC-Panel 10UH/1.7A 10UH/1.7A SK24 SK24 13.5V CMO216 190MA-250MA NC/AO3401 NC/AO3401 VDA=0.5X(1+R2/R5) CA34 CA34 C206 C206 C154 C154 C155 C155 0.1uF 0.1uF NC/1uF NC/1uF 100uF/25V 100uF/25V 0.1uF 0.1uF R250 R250 NC/1K NC/1K R245 R245 0805/3.3R/1% 0805/3.3R/1% VCC-Panel AO3400L AO3400L 走线要尽量短,尽量粗...

  • Page 38

    R267 R267 C168 0.1uF C168 0.1uF GM14 R271 R271 C169 0.1uF C169 0.1uF GM13 R272 R272 VREF VREF RP12 RP12 R269 R269 R270 R270 1.33K/1% 1.33K/1% C170 0.1uF C170 0.1uF GM12 VS12 C171 0.1uF C171 0.1uF GM11 VS11 C172 0.1uF C172 0.1uF GM10 VS10...

  • Page 39

    R292 R292 8.2K 8.2K R293 R293 C190 1uF C190 1uF C191 47n C191 47n C192 1uF C192 1uF CA39 CA39 10uF/16V 10uF/16V CA40 CA40 10uF/16V 10uF/16V C-NR C-TS C193 100nF C193 100nF CA41 CA41 10uF/16V 10uF/16V C-TW CA42 CA42 4.7uF/16V 4.7uF/16V C-DEC BTSC_L...

  • Page 40: Trouble Shooting

    9.Trouble shooting 1、Power supply trouble Power supply trouble Check (F1/3A) for 12V? Check F1 and peripheral power supply Check E33/470μF/16V for 5V F1 is damaged? Turn on the TV-set(By button or Were those remote control) LDO(U10,U13,U16,U18,U19, etc.)worked normal? Check power supply net Check U6/MCU follow F1...

  • Page 41

    、 Power supply trouble (DVB Power supply trouble (DVB Check E43/470μF/16V for 5V Check U15 Pin 3 for 12V pulse Check U22 Check U32 (AIC1084- (AZ1117H 33PM)for -1.8)for Check U15 Pin L16 open 3.3V output 1.8V output NO.2 for 12V input,Pin damaged NO.7 for 3.3V...

  • Page 42

    Display trouble(exceptional screen) Exceptional screen Check if the cable is correct and connected tightly Check if the LCD panel is ok Check the circuit of output and the CN2/Jack Change the cable for Panel connector Check the power supply for Change or repair the Change LCD U5 and the clock circuit...

  • Page 43

    Display trouble(white screen) White screen Check the power supply for panel Check the switch signal for Check the output signal Q24/AO3401(changed Of U5 from 5~0V) Change the LCD panel or Check the circuit from U6/NT68F631 to Q24 Check U5 Check CN8 or change Q24 The cable to panel or U6 had been damaged...

  • Page 44

    Display trouble(black screen) Black screen The voltage of BLON Signal is 5v? (on CN10 ) Check if the inverter is working normal? Check the power Check R25/22 ohm or change U6 Change the inverter supply for TV set...

  • Page 45

    Audio trouble(No sound) No sound Check if have audio input signal Check the set of volume and MUTE Check CN11 output signal Check U3/TPA1517NE-pin7 for power supply >11V Check U3-pin8 voltage≥9.2V Check if U3-pin1,9 have audio signal input Check if U3-pin4,6 have Check if U21-pin60,61 audio signal output have audio signal output...

  • Page 46

    Function trouble TV cann’t searched any channel/no picture (TV video) Confirm if the RF cable does have signal Check T1/VA1Y1ED2002 Pin7for 5V? Check T1-pin4,5 for I2C Check T1-pin8 for signal TCheck T1pin1for voltage 1.8~4.3V Check the circuit from Check I2C circuit T1-pin8to changeT1 Check the circuit...

  • Page 47

    Display trouble(exceptional screen) TV no audio but picture The same as in PC and YPBPR mode? If there was signal on Pin2 of SAW2/AF389A2D? 1. Change SAW2 1.Check the circuit 2. Examine PIN No.29,30 of U21 between SAW2/pin2 3. Examine the power supply for and C133/0.01μF Refer to ”6”...

  • Page 48

    Function Trouble (PC) Picture not Missing Picture No signal In center color dithering Check the R.G.B Check if the wave input signal for U5 of Vsync,Hsync is ok Check the circuit Do “Reset“ process Check the Check the circuit of Vsync,Hsync on the menu or Do “Auto adjust”...

  • Page 49

    Function Trouble (Scart,HDMI,YPBPR) SCART RGB、HDMI 、YPBPR 、 SCART Video、S- Video No signal besides Missing No signal PC/HDMI/YPBPR mode color Check the input signal of R.G.B to U5 Check R.G.B circuit (If on scart channel, Check the circuit of Check the power should check the VSYNC and HSYNC Reset...

  • Page 50

    Audio (HDMI no sound trouble) Check U14 Pin1,2,3,4those signal input • Check U14/CS4344 power Check if U12 and RP12 are supply is worked normal? mounted firmly Check U14/ Check U14 circuit CS4344 power supply Check U12 power supply and Remount if CN18 is mounted firmly? Check U12 circuit Change U12...

  • Page 51

    Function Trouble (DVB-T) DVB can’t find any channel/no picture DVB can’t find any channel/no picture Power supply worked normal?(U15,U22,U32,U34) Check Pin6 of T1 has 4M clock signal? Check power supply for U30 Check T1-pin4,5 for I2C Check U25Pin37 is 3.3V? Check the Check whether there is TS- Or T1 damaged...

  • Page 52

    DVB no sound Function Trouble (DVB-T) DVB No sound CheckU26’s Pin202,203,204 output signal? U26’s audio out pin had short circuited? Y Check if U29’s Pin1,2,3 have audio signal input Check power supply for Y U26(PNX8316HS/102) Check if the input circuit were Or change U26 mounted firmly Y...

  • Page 53

    D1V8 D3V3 D1V2 D3V3 SCL_TUN D SCL DVD/DTV IR SDA_TUN D SDA OSD CON T RESET A/DTV SW DTV AGC TDA1004X TXD/RXD HD_SCL HD_3V3 HD_SDA DTV_CVBS/Y PNX831X HD RST DTV_C DTV_R BUFFER DTV_G HDMI DATA EP901 DTV_B DTV IIS FLASH SDRAM DTV_LI DTV IIS...

  • Page 54

    FACTORY MENU ADJUSTMENT FACTORY 1 GAIN (White balance value ;0-255) OFFESET (Black balance value ;0-255) CONTRAST (0-63) DECODER BRIGHTNESS (0-63) CONTAST (0-63) YC DELAY 0-15 NTSC 0-15 SECAM 0-15 AUTO (Adjust white blance auto) SAVE FACTORY 2 VIDEO(PC colour temperature ;0-255) DCXO -120 DISC...

  • Page 55

    SAVE > FACTORY 3 STANDARD/MILD/FRESH(Ajust picture mode) BRIGHTNESS CONTRAST SATURATION VOLUME 0-63(Max volume) DVD MODE OFF/ON SECAM L/L’ OFF/ON NICAM OFF/ON TELETEXT OFF/ON LOCK SET OFF/ON(Hotel Lock function) FIRST SEARCH OFF/ON(Auto search or not when first poweron) HDMI OFF/ON OFF/ON SCART OFF/ON COMPONENT...

  • Page 56

    Sincere Forever...

This manual also for:

Hl22kn1

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