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Haier HL19K1 - K-Series - 19" LCD TV Service Manual

Other manuals for HL19K1 - K-Series - 19" LCD TV: User Manual, User Manual
Manual is about: Haier HLC19R1 Color TV Service manual

Summary of HL19K1 - K-Series - 19" LCD TV

  • Page 1

    1 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 electrici...

  • Page 2: Contents

    2 contents table of conents ………………..................…………………………….2 1. General information …………...............…………………………..3 1-1. General guidelines...…………………………………………………..3 1-2. Important notice………………………………………………………...3 1-3. How to read this service manual……………………………………..4 2. Specifications …………………………...

  • Page 3: 9. Trouble Shooting

    3 8-1-1.How to enter into service mode ......................................................37 8-1-2.How to exit ..................................................................................37 8-2.Measurements and adjustments ..................................................37 9. Trouble shoo...

  • Page 4: 1. General Information

    4 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, insulati...

  • Page 5

    5 1-2-6. Take care to deal with the cathode-ray tube in the condition that an explosion-proof cathoderay tube is set in this equipment, safety is se-cured against implosion. However, when removing it or serving from backward, it is dangerous to give a shock. Take enough care to deal with it. 1-2-7. ...

  • Page 6: 2. Specification

    6 may damage equipment, loose data, get an unexpected result or has to restart(part of) a procedure. Warning: a “warning” is used when there is danger of personal injury. Reference: a “reference” guides the reader to other places in this binder or in this manual, where he/she will find additional in...

  • Page 7

    7 3-1 board location no. Parts number description a board main board b board power board 3-2 main board & av board 3-2-1 function description: main board： process signal which incept from exterior equipment，then translate into signal that panel can display. 3-2-2 connector definition main board conn...

  • Page 8

    8 notes: cn3-pin 3: backlight on/off: the system can turn on or turn off the backlight of tft lcd panel through the power supply unit path. Cn3-pin 7: system power on / standby system board will use this pin to control system power. Cn3-pin 4: control the luminance of backlight the system can genera...

  • Page 9

    9 1 gpio gpio 2 pb_in pb1 in 3 y_in y1_in 4 gnd gnd 5 pr_in pr1 in 6 gnd gnd 7 ir dvd ir dvd audio connector: p1 pin number signal name description 1 li ypbpr1l_in 2 ri ypbpr1r_in 3 gnd gnd other connectors: cn19 to upgrade the program of mtk5380lc (u13) and flash (u17) u0tx +3v3sb u0rx j3 4x1 w/hou...

  • Page 10

    10 3-4. Lcd panel 3-4-1 function description: display the signal. 3-4-2 connector definition 1 n 2 gnd 3 gnd 4 dim 5 en 6 +12v 7 +12v pin number signal name description 1-3 lvdsvdd power for panel 4-6 gnd ground 7 a0n lvds even 0 - signal 8 a0p lvds even 0 + signal 9 a1n lvds even 1 - signal 10 a1p ...

  • Page 11: 4. Disassemble and Assemble

    11 cn1 (header):s14b-ph-sm4-tb (d)(lf)(jst) or equivalent. Pin no. Symnbol description 1 2 3 vbl +5.0v power input 4 5 6 13 14 25 26 gnd ground 7-12 15 16 17 18 lvds even lvds even signal 19-24 27 28 29 30 lvds odd lvds odd signal 4. Disassemble and assemble 22 a5p lvds odd 1 + signal 23 a6n lvds od...

  • Page 12

    １ ． １ Ｔ ｈ ｅ ｆ ｉ ｒ ｓ ｔ ｏ ｆ Ｔ Ｖ ｔ ｅ ａ ｒ ｄ ｏ ｗ ｎ － － Ｔ ｅ ａ ｒ ｉ ｎ ｇ ｄ ｏ ｗ ｎ ｔ ｈ ｅ ｂ ａ ｓ ｅ １ ． １ Ｔ ｈ ｅ ｆ ｉ ｒ ｓ ｔ ｏ ｆ Ｔ Ｖ ｔ ｅ ａ ｒ ｄ ｏ ｗ ｎ － － Ｔ ｅ ａ ｒ ｉ ｎ ｇ ｄ ｏ ｗ ｎ ｔ ｈ ｅ ｂ ａ ｓ ｅ Ｌ Ｘ １ ９ Ｒ １ Ｋ ｎ ｏ ｃ ｋ ｅ ｄ － ｄ ｏ ｗ ｎ Ｓ ｈ ｏ ｗ 4bolt (m4*16) Ｔｅａｒｉｎｇ ｄｏｗｎ ｔｈｅ ｂａｓｅ 4bolt (m4*16) Ｔｅａｒｉｎｇ ｄｏｗｎ ｔｈｅ ｂａｓｅ Ｐｕｌｌｉｎｇ ｏｕｔ ...

  • Page 13

    １ ． ８ Ｔ ｈ ｅ ｓ ｅ ｖ ｅ ｎ ｔ ｈ ｏ ｆ Ｔ Ｖ ｔ ｅ ａ ｒ ｄ ｏ ｗ ｎ － － Ｔ ｅ ａ ｒ ｉ ｎ ｇ ｄ ｏ ｗ ｎ ｔ ｈ ｅ ｓ ｐ ｅ ａ ｋ ｅ ｒ ｓ １ ． ８ Ｔ ｈ ｅ ｓ ｅ ｖ ｅ ｎ ｔ ｈ ｏ ｆ Ｔ Ｖ ｔ ｅ ａ ｒ ｄ ｏ ｗ ｎ － － Ｔ ｅ ａ ｒ ｉ ｎ ｇ ｄ ｏ ｗ ｎ ｔ ｈ ｅ ｓ ｐ ｅ ａ ｋ ｅ ｒ ｓ １ ． １ ０ Ｔ ｈ ｅ ｅ ｉ ｇ ｈ ｔ ｈ ｏ ｆ Ｔ Ｖ ｔ ｅ ａ ｒ ｄ ｏ ｗ ｎ － － Ｔ ｅ ａ ｒ ｉ ｎ ｇ ｄ ｏ ｗ ｎ ｔ ｈ ｅ Ｐ ｏ ｗ ｅ ｒ Ｓ ｕ ｐ ｐ ｌ ｙ ...

  • Page 14: 5. Installation Instructions

    14 5. Installation instructions 5-1 external equipment connections antenna connection connect one end of a coaxial cable (not included) to the ant in jack on the back of your tv/dvd combo, then connect the other end of the cable into the antenna or cable tv wall outlet. To improve picture quality fr...

  • Page 15

    Pc au dio in v g a in you can use your lcd-tv as a monitor for your personal computer using a vga cable (not supplied). Vga setup connection and use steps: 1.Read the user guide supplied with your computer and ensure that it has a vga connector; 2.Make sure that the power of the lcd -tv and the pc a...

  • Page 16

    16 5-2 hdmi connections when the source device(dvd player or set top box) supports hdm how to connect 1. Connect the source device to hdmi port of this tv with an hdmi cable(not supplied with this product). 2. No separated audio connection is necessary. Cable tv setup after subscribing to a cable tv...

  • Page 17

    17 how to use if the source device supports auto hdmi function, the output resolution of the source device will be automatically set to 1280x720p. If the source device does not support auto hdmi, you need to set the output resolution appropriately. To get the best picture quality, adjust the output ...

  • Page 18

    18 connecting headphones you can connect a set of headphones to your set if you wish to watch a tv programmer without disturbing the other people in the room. Plug a set of headphones into the 3.5mm mini-jack socket on the rear panel of the set. Note： ■ prolonged use of headphones at a high volume m...

  • Page 19: 6. Operation Instructions

    19 6. Operation instructions basal information 6-1 front panel controls 6-2 back panel controls 6-3 setting up your remote control after it has been set up properly, your remote control can operate in six different modes: tv, vcr, cable, dvd, setbox or audio. Pressing the corresponding button on the...

  • Page 20

    1.Press to turn on and off the tv 2.Press to switch input source to usb in 3.Display the guide when you are watching analog or digital channels 4.Select a closed caption 5.Press repeatedly to cycle through the available picture modes 6.Press to cycle through different sound settings 7.Show the input...

  • Page 21: 7. Electrical Parts

    21 7. Electrical parts 7-1. Block diagram 7-2. Circuit diagram hdmi1 vga ypbpr s-video tuner composite mt 5 3 8 0 lc main ic ypbpr composite l/r vga(p11)l/r ddr flash tda1517 p a n e l usb lvds eeprom i2c bus.

  • Page 22

    A a b b c c d d e e 4 4 3 3 2 2 1 1 adin2 led_gre# +5vsb sw_power led_red# opctrl3 adin1 bl_on/off led_red# adin1 oiri +5vsb led_gre# adin2 +12v dimming bl_on/off dimming gpio_3 +5v_dvd gpio_10 +12v gpio_3 pb1_in pr1_in y1_in y1_in pb1_in pr1_in oiri +3v3sb dvd_ir opwrsb opwrsb gpio_[5..11] oiri sw_...

  • Page 23

    A a b b c c d d e e 4 4 3 3 2 2 1 1 dv10 +5vsb +3v3sb mem_vref vtt av33 +12v gnd ddrv mem_vref +5v +3v3sb +5vsb dv33 +12v dv10 ddrv +5v av33 dv33 ddrv vtt gnd 1,3,4,5,6,7,8,9,10,11,12,13,14 dv10 7 +5vsb 1,8,9,11 +3v3sb 1,4,7,8,9 mem_vref 6 vtt 6 av33 3,5,8,9,13 +12v 1,5,9,13,14 ddrv 6,7 title size d...

  • Page 24

    A a b b c c d d e e 4 4 3 3 2 2 1 1 av33 gnd av12 av25 +12v +5v av33 av25 +5v av12 av25 gnd 1,2,4,5,6,7,8,9,10,11,12,13,14 av33 2,5,8,9,13 av12 5,8,10 av25 5,12 +12v 1,2,5,9,13,14 title size document number rev date: sheet of drawn mt5380p1-v2 v1 b 3 15 thursday, december 04, 2008 analog power nustc...

  • Page 25

    5 5 4 4 3 3 2 2 1 1 d d c c b b a a gnd oxtalo +3v3sb oreset# opwm1 opwm2 oxtali gpio_0 usbpwren gpio_6 gpio_7 gpio_8 gpio_10 gpio_11 osda0 osda1 oscl0 oscl1 opctrl0 cec opctrl2 opctrl4 opctrl5 avdd33_reg avdd33_xtal avdd33_reg c_xreg opwrsb opwrsb avcc_srv avcc_srv adin3 osda1 oscl1 adin3 osda0 osc...

  • Page 26

    5 5 4 4 3 3 2 2 1 1 d d c c b b a a av12 avdd12_pll avdd12_pll avdd12_pll avdd12_pll usb_vrt avdd12_pll avdd12_pll avdd12_pll avdd33_usb avdd12_usb avdd12_usb av33 usb_vrt av25 avdd33_usb avdd12_pll avdd25_sadc tuner_clk tuner_data avss25_sadc avdd25_sadc usbpw rerr usbpwren usbpwrerr usb_dm usb_dp ...

  • Page 27

    5 5 4 4 3 3 2 2 1 1 d d c c b b a a mem_clk0 mem_clk0# ddrv gnd mem_vref rdq1 rdq2 rdq3 rdq7 rdq6 rdq5 rdq0 rdq4 rdq15 rdq14 rdq9 rdq13 rdq8 rdq12 rdq11 rdq10 rdqs0 rdqs1 rdqm1 rdqm0 mem_vref rclk0 rclk0# vtt mem_addr6 mem_addr5 mem_addr4 mem_dq0 mem_vref mem_dq14 mem_dq1 mem_dq15 mem_dq2 mem_dq3 me...

  • Page 28

    5 5 4 4 3 3 2 2 1 1 d d c c b b a a gnd freset# poce0# pooe# pdd0 pdd1 oiri jtms jtrst# jtdo jtck jtdi u0tx u0rx jtdo jtag_dbgack jtag_dbgrq tvtref#1 jtms jtck jtdi +3v3sb u0rx u0tx +5vsb poce0# gnd pooe# pdd1 poce0# gnd pdd0 pdd1 pooe# pdd0 oscl1 osda1 freset# freset# jtrst# opctrl5 opctrl4 opwm2 a...

  • Page 29

    A a a a avdd33_h av33 osda1 oscl1 rx0_cb rx0_c rx0_1b rx0_1 rx0_2b rx0_2 rx0_0b rx0_0 opwr0_5v avdd33_h +12v cec avdd12_cvcc avdd12_cvcc av12 gpio_[5..11] +3v3sb hdmiddcsda_0 osda1 hdmiddcscl_0 oscl1 gnd hdmiddcscl_0 rx5v2_ddc_scl rx5v2_ddc_sda hdmi1_rxc+ hdmi1_rx2+ hdmi1_rx1- hdmi1_rxc- hdmiddcsda_...

  • Page 30

    A a b b c c d d e e 4 4 3 3 2 2 1 1 a0n a0p a1n a1p a2p a2n ck1n a4n ck1p a4p a3n a5n a5p a3p ck2n ck2p a6n a7n a7p a6p gnd avdd33_lvds av33 avdd33_vpll +12v gpio_[5..11] lvdsvdd avdd33_lvds avdd33_lvds ck2p ck1p ck2n a3p a3n a7n a7p a4n a4p a5n a2n a5p a2p ck1n a6n a6p a0p a0n a1p a1n avdd33_lvds a...

  • Page 31

    5 5 4 4 3 3 2 2 1 1 d d c c b b a a gnd avss12_rgbadc avdd12_rgbadc avdd12_rgbfe avss12_rgbfe hsync vsync bp bn rn soy0 sog gp gn rp pr0p y0p y0n pb0p pbr0n avdd12_rgbfe avss12_rgbfe avdd12_rgbadc avss12_rgbadc dvdd12_vga dvdd12_vga bp bn rn sog gp gn rp hsync vsync ain1_r ain1_l ypbpr0l_in ypbpr0r_...

  • Page 32

    A a a a vgascl vgasda vga_plugpwr bp hsync gp bn vsync sog gn rn rp +5vsb ain2_l ain2_r vgaromwp vgal_in vgar_in ain2_l ain2_r opctrl1 opctrl1 hsync# vsync# hsync vsync vgascl_in vgascl vgasda vgasda_in grn blu red gp gn sog bp bn blu_gnd rp rn red_gnd grn_gnd red grn blu_gnd blu vsync# hsync# vgasc...

  • Page 33

    5 5 4 4 3 3 2 2 1 1 d d c c b b a a avdd25_vadc av25 av1r_in av1l_in ain0_r ain0_l cvbs1 sy1 sc1 dvdd25_vadc avss25_vadc avdd25_vadc gnd_sv avss25_vfe dvss25_vadc gnd_tuner gnd_cvbs avdd25_ref avss25_ref avdd25_vfe vip_atv vin_atv dvdd25_vadc avdd25_vfe avdd25_ref sy1_in sy1 av1_in cvbs1 sc1 gnd_sv ...

  • Page 34

    A a a a gnd avdd33_aadc avss33_aadc vimd_aadc refp_aadc refn_aadc avdd33_adac0 avdd33_adac1 al1 ar1 avss33_adac0 avss33_adac1 adac_vcm avdd33_dig aspdif refp_aadc refn_aadc avdd33_adac0 avss33_adac0 avdd33_adac1 avdd33_aadc avss33_aadc adac_vcm vimd_aadc ain1_l ain1_r ain2_l ain2_r ain0_r ain0_l ain...

  • Page 35

    A a a a opavref opavref mute al1 gnd hpoutl avr1_out/amp ar1 spdif off_mute mute opavref avl1_out/amp hpdet# mute hpoutr mute hpoutl ar1 hpoutr al1 +12v spdif hpdet# al1 avl1_out/amp ar1 avr1_out/amp opav120 opav120 opavref +12v opav120 opav120 opav120 +12v vref_pt2308 vc5 vref_pt2308 +5v vc5 +5v dv...

  • Page 36

    Q u a n t i t y spec s e r i a l n o . Name n o . Tuner dvd 2 4 6 7 8 9 10 11 12 13 power dvd keypad auto- nserted board assembly r e m o t e c o n t r o l b o a r d a s s e m b l y keypad assembly 14 1 c n 5 c n 2 c n 6 p 1 c n 3 c n 2 c n 1 c n 6 c o n 1 c n 4 3 l c d p a n n e l 5 1 0090402064 2 ...

  • Page 37

    37 8. Measurements and adjustments 8-1. Service mode 8-1-1.How to enter into service mode the way to the factory mode menu: 1st, press menu, 2en, input 8893, 3 rd , press “ok” finished these operations , system will be into the factory mode menu. 8-1-2.How to exit if want to exit this factory menu,p...

  • Page 38

    38 8-2-2 video auto color the option could only be used in the vga and component model. When we found the color in the two models was abnormal. Then we can use the function to adjust it automatically. Color temperature the function could adjust the color temperature., used when debugging. 8-2-3 audi...

  • Page 39

    39 compression: compression style. Rf： atv line：av/s-video/ypbpr/vga compression factor: compression state. Downmix: output model. Mts system: used when debugging. The parameters only used when debugging, no need to be modified. 8-2-4 channel range scan: the function could make it to search the chan...

  • Page 40

    40 factory scan: according to antenna-analog---〉antenna-digital---〉cable- analog---〉cable- digital to search channels, used only in project debugging. Tuner diagnostic: project debugging setting, used to inspect the audio function. 8-2-5gamma gamma: bright：gamma0.8 middle：default settings in the pro...

  • Page 41

    41 8-2-6 backlight backlight: adjust the backlight . 8-2-7 function burning mode: turn it “on” to enter the aging model, this is for factory run-in testing. The screen would display red, green, blue and black screen repeatedly. Each color screen could be exam at that time..

  • Page 42

    42 clean storage：the function could make the model turn back to the factory default setting..

  • Page 43: 9. Trouble Shooting

    43 remark: the date of the chart only is a example, please don’t adjust the factory mode base on it. 9. Trouble shooting 9-1. Simple check no picture,no sound verify if the television is properly plugged verify if the television is properly supplied power verify if electricity is available blank scr...

  • Page 44

    Check (f1/3a) for 12v？ check f1 and peripheral power supply check e33/470μf/16v for 5v f1 is damaged？ were those ldo(u10,u13,u16,u18,u19, etc.)worked normal? Ok turn on the tv-set(by button or remote control) check power supply net follow f1 check u6/mcu 1:power supply(u7、u9)) 2:reset signal 3:cryst...

  • Page 45

    45 9-3. Main board failure check state: no sound fail pass fail pass fail pass fail pass fail pass no sound (all mode) check the input source change source input check the input/output of ic u13 of main b/d re-soldering or change ic u13 check the input/output of ic u55 of main b/d re-soldering or ch...

  • Page 46

    46 state：no picture fail pass fail pass fail pass fail pass no raster on panel check the backlight b/d change the backlight b/d check the input/output of jack cn3 of main b/d re-soldering or change ic ua1 and rna1-17 check the input/output of jack cn4 of main b/d re-soldering or change ic u13 change...

  • Page 47

    47 9-4. Pannel failure failure mode part name description phenomena failure cause v b/d vertical bar v dim vertal gray line v l/d vertical color line(light or dark forever) h b/d horizontal bar h dim horizontal gary line tcp h l/d horizontal line(light or dark forever) block defect :tcp cracking or ...

  • Page 48

    48 flashing bright and dark display alternately 3. Pannel and vsc connect bad failure mode part name description phenomena failure cause white screen b/l normal, only white screen display black screen b/l normal, only black screen display maybe caused by surge current and eds fiicker crosstalk lcd v...

  • Page 49

    49 b/l wire open without backlight operation abnormal or systemic noise b/l shut down b/l shutdown in sometime short bitween lamp housing and wire, because consume power too much f/m f/m in b/l ,white,balck rotundity or wirelike f/m in b/l unit failure mode part name description phenomena failure ca...

  • Page 50: Sincere Forever

    50 sincere forever.