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Haier L19A11W Service Manual
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Haier L19A11W Service Manual

Haier L19A11W Service Manual

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L19A11W

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Summary of Contents for Haier L19A11W

  • Page 1 L19A11W...
  • Page 2 1. Features 2. Safety Precautions 3. Images of Module and Circuit Boards 4. Key IC Description& Trouble Shooting Guide 5.Signal Flowing Chart 6. Bus Control Adjustment 7. Circuit Diagram...
  • Page 3 Model Functions L19Ａ1１Ｗ 19inch Screen size Aspect　ratio 16:10 Brightness 300cd/m2 Contrast Ratio(Darkroom) 700:1 Resolution 1440*900 Response Time（ms) Angel of view H：150/V：135 16.7M Color display NO.of preset channels OSD language English,Italian,Deutsch,French,Espanol 3D decoder 2D comb filter 3A ENGINE Same picture split demo(SPD) double picture demo (DPD) PAL/SECAM Color system...
  • Page 4 Model Functions L1９Ａ１１Ｗ Semitransparent menu ZOOM 16:9 mode ADVANCED 4:3 3A WINDOWS Nation Select Channel List Input Frequecy by Manual and Channel Number Input Lock TELTEXT NO. of built-in speakers NO. of outer speakers Audio output power(Built-in)(W 1.5W×2 Audio output power(outer)(W) Total power input（W）...

  • Page 7: Images Of Module And Circuit Boards

    Images of Module and Circuit Boards 1.Images of Remote Board Subassembly 2.Images of Key Board Subassembly...
  • Page 8 3.Images of Main Board Subassembly...
  • Page 9 4.Images of Power supply 5.Images of Inverter...
  • Page 15 2.NT68565 Function:Flat Panel Monitor Controller AGND TMDS Analog GND RX2+ TMDS input channel 2+ RX2- TMDS input channel 2- AVCC TMDS Analog VCC must be set to 3.3V RX1+ TMDS input channel 1+ RX1- TMDS input channel 1- AGND TMDS Analog GND RX0+ TMDS input channel 0+ RX0-...
  • Page 16 TCLK Reference clock Input Reference clock Input PLL_ VDD Core logic power supply (1.8V) pin for PLL HDCP_SDA For DVI HDCP communication interface Serial Data In/Out HDCP_SCL For DVI HDCP communication interface Serial Clock RSTn System Reset Host Interface Serial Data In/Out Host Interface Serial Clock IRQn Interrupt Request...
  • Page 17 DVDD Display Digital Power Supply Display Red data 4 output Display Red data 5 output Display Red data 6 output Display Red data 7 output DCLK Display clock for TTL interface Display Enable for TTL interface Display vertical sycn for TTL interface Display horizontal sync for TTL interface DGND/CGND Digital Ground/ Core Logic Ground...
  • Page 18 3.NT68F631C Push-Pull Structure with Schmitt Trigger Input PA0/PWM2 Schmitt Trigger Input PA1/PWM3 Schmitt Trigger Input PA2/PWM4 Schmitt Trigger Input PA3/PWM5 Schmitt Trigger Input PA4*/PWM6* Open-Drain Structure with Schmitt Trigger Input PA5*/PWM7* Open-Drain Structure with Schmitt Trigger Input PA6*/PWM8* Open-Drain Structure with Schmitt Trigger Input PA7*/PWM9* Open-Drain Structure with Schmitt Trigger Input RSTB...
  • Page 21 HDMI no sound HDMI no sound Check input of U14 pin1/2/３/４ Check U12 pin４８/４９/５０/５７ Check U14 power or poor connection of RP12 Check U14 Check U14 power circuit circuit periphery Check CN18 and U12 power Jointing and poor connection Change U12 Check U12 power circuit...
  • Page 22 No sound Check audio signal input Check VOLUME and MUTE Check signal output of CN11 Check pin7 of U3(for 11~12V) Check pin8 of U3(≥9.2V) Check signal input of pin1/9 of U3 Check signal Check signal output output of pin4/6 of pin60/61 of U21 of U3 Check audio input signal: SCART:pin56/57of u21...
  • Page 23 Exceptional screen Reselect panel Check panel voltage voltage Check LVDS and its Change LVDS connecting mode Check LCD Change LCD Check output Check the circuit network and jack Check power and timing of U5...
  • Page 24 Black screen Check the supply of CN10(for 5V) Power on or not Check inverter for Pin43 of Broken inverter Turn on TV Check power U6/NT68F631ALG is or self-protect low voltage or not Check the Check supply,reset and Ω R25/22 crystal of MCU...
  • Page 25 SCART RGB、SCART Video、S- Video、AV No signal No color and No signal except VGA missing color Input signal of U5 Check U21 power Check VS and Check R.G.B circuit Reselect and VS, HS circuit HS circuit...
  • Page 26 White screen Check power of panel Check grid of Q24 for 0~3.3V Check output of U5 (5V or 12V，according to panel voltage) Check U5 and Broken Check voltage of Check circuit between its power or LCD or LVDS sourse of Q24 pin7 of U6 and grid of timing Q24,or I/O of U6...
  • Page 27 TV no sound but picture Check audio in PC and AV Check signal of SAW2 pin1/2 1. Broken SAW2 2. Poor connection of 1.Check SAW2 pin2 to c133 u21 pin29/30 2. Broken C133 According to no sound 3. U21 power failure 3.Poor connection of D25 or D26 4.
  • Page 28 Picture not No signal Missing color Picture not steady in centre Check input signal of U5 Check HS and VS Reselect OSD Check RGB circuit Auto adjust Reset Check VS and HS or change input Check VS and HS...
  • Page 29 HDMI no signal HDMI picture Exceptional picture Poor connection of CN18 Missing color Check signal of U12 pin27/29/31 Jointing Poor connection of U12 Check U12 to U17 Check U12 periphery circuit Pin2/5/11 Check U12 power Jointing periphery circuit...
  • Page 30 Mixed sound in TV but no nicam Audio system is right Reselect Picture is normal 1.Broken C113,D25, D26 or SAW2 Research 2.Poor connection of above...
  • Page 31 HD_3V3 HDMI DDC HDMI DECODER CS4334 HD AUDIO LI HDMI DATA HD AUDIO RI HD Y HD Pb SINGLE TTL 24C08 VGA_DDC HDCP HD Pr VGA_R SINGLE/DUAL LVDS VGA_G SWITCH VGA_B PANEL VGAVS 68565 VGAHS Pr/RIN PNL VCC Y/GIN Pb/BIN TV VS/ TV HS/ SWITCH...
  • Page 32 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 33 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 34 01-POWER&AMP 06-AUDIO 01-POWER&AMP.Sch 06-AUDIO.Sch 02-INPUT 07-MCU 02-INPUT.Sch 07-MCU.Sch 03-NT68565 08-0UTPUT 03-NT68565.Sch 08-0UTPUT.Sch 04-TUNER 09-HDMI 04-TUNER.Sch 09-HDMI.SCH 05-UOC3 05-UOC3.Sch Title Size Number Revision Date: 25-Sep-2006 Sheet of File: C:\Documents and Settings\lilixiu\桌面\B.TD302B.ddb Drawn By: PDF 文件使用 "pdfFactory" 试用版本创建 ÿ ÿ www.fineprint.com.cn...
  • Page 35 UTC78L05L CPU5V UR133L-3.3V-C MCU-VCC V IN 47uF-25V-±20%-5*7－105℃ 0.1uF-0603-Y5V-+80%-20%-50V 0.1uF-0603-Y5V-+80%-20%-50V 1uF-0603-Y5V-+80%-20%-10V CN10 CPU5V DC_12V PCB注意封 装脚位与 78L05不同(C型) 0ohm-1206-±5%-1/4W BLON 3G3A-250V +12V NC/AO3401 DVD_OP_12V GZ1608D121T(F) 7PIN-2.54-D-H-G(靠近板 边焊) 220uF-25V-±20%-8*9－105℃ NC/4K7ohm-0603-±5%-1/10W 靠 脚插 0.1uF-0603-Y5V-+80%-20%-50V CPU5V NC/0.01uF-0603-X7R-±10%-50V NC/1Kohm-0603-±5%-1/10W NC/100Kohm-0603-±5%-1/10W ON/OFF' AMP_STB AZ1117H-3.3(TR)E1 3PVCC NC/PMBT3904 R257 ON/OFF NC/10Kohm-0603-±5%-1/10W + E25...
  • Page 36 NC/0094300652 SCART_G 0094300494 A.OUTSR' SCART_B SC1_R_IN A.OUTSL' SCART_G AGND SCART_R BGND SC1_L_IN SCART_B CVBSO SC1_SWITCH SC1_SWITCH' SC1_SWITCH SWTCH SCART_B SCART_VI 33Kohm-0603-±5%-1/10W GGND CLKOUT SCART_G DATA RGND DATAGND SCART_R SC1_FB BLNK VGND SCART_R BLNKGND CVBSO VOUT SCART_VI SHIELD VGA_VS VGAVS 0094300305 100ohm-0603-±5%-1/10W VGA_R VGA_R...
  • Page 37 GZ1608D121T(F) GZ1608D121T(F) DPLL +1V8A 3.3V-PVCC +3V3A + E3 + E4 C167 0.1uF-0603-Y5V-+80%-20%-50V 47uF-25V-±20%-5*7－105℃ 47uF-25V-±20%-5*7－105℃ C116 C249 C165 VT_SEL1 VGA-5V 0.1uF-0603-Y5V-+80%-20%-50V 0.1uF-0603-Y5V-+80%-20%-50V 0.1uF-0603-Y5V-+80%-20%-50V NC/0ohm-0603-±5%-1/10W C247 GZ1608D121T(F) +3V3A 0.1uF-0603-Y5V-+80%-20%-50V TV R R249 GZ1608D121T(F) C119 0.1uF-0603-Y5V-+80%-20%-50V For Single TTL Panel +3V3A TV G C117 0.1uF-0603-Y5V-+80%-20%-50V C144...
  • Page 38 SAW1 VF389A1D-视频 R124 5V_IF NC/100ohm-0603-±5%-1/10W TEDE9-2B4A C124 NC/6K8ohm-0603-±5%-1/10W NC/0.1uF-0603-Y5V-+80%-20%-50V NC/47uF-25V-±20%-5*7－105℃ NC/6K8ohm-0603-±5%-1/10W VIFIN1 VIFIN1 NC/BA792 VIFIN2 VIFIN2 EC0410-101K-R-L-F 0ohm-0603-±5%-1/10W NC/PMBT3904 NC/2K2ohm-0603-±5%-1/10W NC/1Kohm-0603-±5%-1/10W SAW2 5V/TV AF389A2D-音频 R127 R129 C234 NC/SDFL1608Q1R0KT(F) NC/180ohm-0603-±5%-1/10W C235 +33V C132 56ohm-0603-±5%-1/10W 47pF-0603-NPO-±5%-50V NC/5K6ohm-0603-±5%-1/10W 0.01uF-0603-X7R-±10%-50V 100uF-16V-±20%-5*11－105℃ 0.1uF-0603-Y5V-+80%-20%-50V 47pF-0603-NPO-±5%-50V C115 R125 R145 NC/2SC3779D...
  • Page 39 15ohm-0603-±5%-1/10W 3PVCC 15ohm-0603-±5%-1/10W 220uF-25V-±20%-8*9－105℃ 3PVCC GZ1608D121T(F) C255 0.1uF-0603-Y5V-+80%-20%-50V 0.1uF-0603-Y5V-+80%-20%-50V 1uF-0603-Y5V-+80%-20%-10V R247 24.576MHZ-±30PPM-20PF-HC-49S 10Kohm-0603-±5%-1/10W R130 680ohm-0603-±5%-1/10W R182 HOUT UOC_HS C158 100ohm-0603-±5%-1/10W 0.022uF-0603-X7R-±10%-25V OUT1 OUT6 R207 39Kohm-0603-±5%-1/10W C160 R176 TV_HS OUT2 OUT5 1Kohm-0603-±5%-1/10W 0.15uF-0603-Y5V-+80%-20%-16V R241 VDRB UOC_VS 100ohm-0603-±5%-1/10W TV_VS OUT3 OUT4 SN74LVC14 C232 C233 56pF-0603-NPO-±5%-50V...
  • Page 40 R158 5V_AUDBIAS 100ohm-0603-±5%-1/10W C245 47uF-25V-±20%-5*7－105℃ 0.1uF-0603-Y5V-+80%-20%-50V TPA1517NE +12V 12V AP 5V_AUDBIAS 5V_AUDBIAS 1N4001-DO-41 C203 R116 A.OUTR R159 R160 C241 R117 100Kohm-0603-±5%-1/10W 100Kohm-0603-±5%-1/10W 0.1uF-0603-Y5V-+80%-20%-50V A.OUTL 470uF-25V-±20%-10*13－105℃ 470uF-16V-±20%-8*12－105℃ 1Kohm-0603-±5%-1/10W 1uF-0603-Y5V-+80%-20%-10V 1uF-0603-Y5V-+80%-20%-10V 1uF-0603-Y5V-+80%-20%-10V C140 1Kohm-0603-±5%-1/10W PC_AUD_L PC_AUD_L' PC_AUD_R PC_AUD_R' C239 C240 1uF-0603-Y5V-+80%-20%-10V LOUT 1uF-0603-Y5V-+80%-20%-10V 1uF-0603-Y5V-+80%-20%-10V C156...
  • Page 41 22uF-25V-±20%-5*11－105℃ A.OUTSL A.OUTSL' 220ohm-0603-±5%-1/10W C250 47Kohm-0603-±5%-1/10W C215 330pF-0603-X7R-±10%-50V 1000pF-0603-X7R-±10%-50V 耳机输出 R236 10Kohm-0603-±5%-1/10W CN11 LSPK BL_PW BLON ROUT RSPK R218 22ohm-0603-±5%-1/10W NC/0ohm-0805-±5%-1/8W 4PIN-2.54-D-H-G A.OUTSR A.OUTSR' LOUT 0094300644 220ohm-0603-±5%-1/10W NC/0ohm-0805-±5%-1/8W 22uF-25V-±20%-5*11－105℃ R210 R238 C254 1uF-0603-Y5V-+80%-20%-10V 10Kohm-0603-±5%-1/10W C217 C218 C251 1000pF-0603-X7R-±10%-50V C216 330pF-0603-X7R-±10%-50V 1000pF-0603-X7R-±10%-50V 1000pF-0603-X7R-±10%-50V 47Kohm-0603-±5%-1/10W...
  • Page 42 EP_RST R202 100ohm-0603-±5%-1/10W HVDDI HVDDE R203 100ohm-0603-±5%-1/10W R205 100ohm-0603-±5%-1/10W HAVDD HPVDD HDMI_5V HPD_DET R240 750ohm-0603-±5%-1/10W RESERVED D1[5] R138 R149 PVSS D1[6] 1Kohm-0603-±5%-1/10W R146 10Kohm-0603-±5%-1/10W PVDD D1[7] CN18 10Kohm-0603-±5%-1/10W EXT_RES VSSE RX_HOTPLUG PMBT3904 AVDD VDDE HDMI_5V RX2+ RX2+ RXC- PMBT3904 RXC- D2[0] Line1 RX2-...
  • Page 43 CN15 KEY_AD0 0.1uF-0603-Y5V-+80%-20%-50V 75ohm-0603-±5%-1/10W MCU-VCC 0.75V R279 1K2ohm-0603-±5%-1/10W 1.6V R281 3K6ohm-0603-±5%-1/10W 2.4V R283 9K1ohm-0603-±5%-1/10W NC/MLVS0603M07 R277 75ohm-0603-±5%-1/10W CPU5V 10Kohm-0603-±5%-1/10W 0.1uF-0603-Y5V-+80%-20%-50V IR_IN 0.75V R280 1K2ohm-0603-±5%-1/10W 1.6V R282 3K6ohm-0603-±5%-1/10W LED_O LL4148-LL-34 DVD_DAT NC/MLVS0603M07 KEY_AD1 4.7uF-50V-±20%-5*11 － 105 ℃ LED_G 0.1uF-0603-Y5V-+80%-20%-50V 4*4K7ohm-0603-±5%-1/16W 4*4K7ohm-0603-±5%-1/16W CPU5V RP10 4*4K7ohm-0603-±5%-1/16W...