7. Theory of Circuit Operation 8. Waveforms 9. Trouble Shooting 10. Block Diagram 10-1 11. Spare parts list 11-1 12. Complete Parts List 12-1 Appendix 1. Main Board Circuit Diagram 2. Main Board PCB Layout 3. Assembly Explosion Drawing 42LV4400,47LV440 Service Manual...
Chapter 1 Features Built in TV channel selector for TV viewing Simultaneous display of PC and TV images Connectable to PC’s analog RGB port Built in HDTV,composite video, HDMI ,ATV and DTV ,Audio line out, Audio optical out Built in auto adjust function for automatic adjustment of screen display Smoothing function enables display of smooth texts and graphics even if image with resolution lower than 1920x1080 is magnified Power saving to reduce consumption power too less than 0.5W...
Chapter 2 Specification 1. TFT LCD CHARACTERISTICS 42/47” WUXGA TFT LCD Item Specification Active Screen Size 42/47 inches(1067.31/1192.87mm) diagonal 968.4/1078.6(H) × 564/626(V) X 10.8(B)/18.3/22.9 mm(D) Outline Dimension (Typ.) Pixel Pitch 0.4845/0.5415 mm x 0.4845/0.5415 mm Pixel Format 1920 horiz. by 1080 vert. Pixels, RGB stripe arrangement Color Depth 8bit, 16.7 M colors Luminance, White...
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6. ENVIRONMENT Operating Temperature: 5c~35c (Ambient) Operating Humidity: Ta= 35 °C, 90%RH (Non-condensing) Operating Altitude: 0 - 14,000 feet (Non-Operating) 7. Dimensions (Physical dimension) (Unit: mm) Display Module Display Module + Base a. Height 631.7/693.5 687.7/751.4 b. Width 999.0/1108.1 999.0/1108.1 c.
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(7) When the surface becomes dusty, please wipe gently with absorbent cotton or other soft materials like chamois soaks with petroleum benzine. Normal-hexane is recommended for cleaning the adhesives used to attach front / rear polarizers. Do not use acetone, toluene and alcohol because they cause chemical damage to the polarizer (8) Wipe off saliva or water drops as soon as possible.
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9-4. Precautions for Strong Light Exposure Strong light exposure causes degradation of polarizer and color filter. 9-5. Storage When storing modules as spares for a long time, the following precautions are necessary. (1) Store them in a dark place. Do not expose the module to sunlight or fluorescent light. Keep the temperature between 5°C and 35°C at normal humidity.
Chapter 3 On Screen Display Operation: Main unit button LGE 2011 UI Adjustment Main Menu Channel Picture Audio Time Option Lock Input My Media CONFIDENTIAL – DO NOT COPY Page 3-1 File No. SG-0000034...
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Channel a. Auto Tuning b. Manual Tuning a. Type: TV, CATV, DTV, CADTV b. Channel c. Add / Delete d. Close c. Channel Edit Type: TV, CATV, DTV, CADTV b. Channel Change Add / Delete / Remove Favorite Picture A. Aspect Ratio (Set by Program, 4:3, 16:9, Zoom, Cinema Zoom, Just Scan) Source TV/Comp/HDMI...
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b. Contrast (0 ~ 100) c. Brightness (0 ~ 100) d. Sharpness (0 ~ 100) e. Color (0 ~ 100) f. Tint (R50 ~ G50) g. Advanced Control g-1. Color Temperature (Cool, Medium, Warm) g-2. Fresh Contrast (Off, Low, Medium, High) g-3.
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D. Digital Audio Out (Dolby Digital, PCM) E. Analog Audio Out (Fixed, Variable) Time A. Clock (Auto, Manual) a. Year (2011 ~ 2035) b. Month (1 ~ 12) c. Date (1 ~ 31) d. Hour (12AM ~ 11PM) e. Minute (0 ~ 59) f.
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f. Volume (0 ~ 100) D. Sleep Timer (Off, 10 min, 20 min, 30 min, 60 min, 90 min, 120 min, 180 min, 240 min) E. Auto Sleep (Off, On) Option A. Language a. Menu (English, Spanish, French) b. Audio (English, Spanish, French) B.
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b-6. Bg Opacity (Solid, Flash, Translucent, Transparent) b-7. Edge Type (None, Uniform, Raised, Depressed, Left Shadow, Right Shadow) b-8. Edge Color (White, Black, Red, Green, Blue, Yellow, Magenta, Cyan) E. Initial Setting (In Store, Home) Lock A. Lock System (Off, On) (default password: 0000) B.
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I. Downloadable Rating J. Input Block a. AV (Off, On) b. Component (Off, On) c. RGB-PC (Off, On) d. HDMI1 (Off, On) e. HDMI2 (Off, On) Input Component RGB-PC HDMI-1 HDMI-2 My Media A. Photo List a. Slideshow Mode (Single, Sequence, Shuffle) b.
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Q.Menu A. Aspect Ratio (Set By Program, 4:3, 16:9, Zoom, Cinema Zoom, Just Scan) B. Backlight (0 ~ 6) C. Picture Mode (Vivid, Standard, Cinema, Sport, Game) D. Sound Mode (Standard, Music, Cinema, Sport, Game) E. Caption (Off, On) F. Multi Audio (Mono, Stereo, SAP) G.
Chapter 4 Factory preset timings This timing chart is already preset for the TFT LCD analog & digital display monitors. RGB For VESA Standard: Horizontal Vertical Refresh Horizontal Vertical Pixel Mode Sync Sync Resolution Rate Frequency Frequency Rate Remark Polarity Polarity (Hz) (KHz)
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Resolution (1920x1080) through RGB (15-Pin D connector) Horizontal Values Parameters Vertical Values (Lines) (Pixels) Address 1920 1080 Front Porch Sync Width Back Porch Total 2080 1111 Frequency 66.587 KHz 59.934 Hz Sync Polarity Pixel Rate (MHz) 138.5 Refresh Rate (Hz) FHD video digital preset modes at HDMI Mode No.
Chapter 5 Pin Assignment The TFT LCD monitors use a 15 Pin Mini D-Sub connector as video input source. Description Green Blue Ground Ground R-Ground G-Ground B-Ground +5V for DDC Ground No Connection (SDA) H-Sync (Composite Sync) V-Sync (SCL) Page 5-1 CONFIDENTIAL –...
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RGB Signal: a. Sync Type TTL (Separate / Composite) or Sync. On Green b. Sync polarity Positive or Negative c. Video Amplitude RGB: 0.7Vp-p d. Frequency H: support to 30K~70KHz V: support to 60~85Hz e. Pixel Clock: support to 138.5 MHz f.
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HDMI Signal (HDMI): a. Pin Assignment Refer to HDMI Pin Assignment b. Type A c. Polarity Positive or Negative d. Frequency H: 15.734KHz V: 60Hz (NTSC-480i) H: 31KHz V: 60Hz (NTSC-480p) H: 45KHz V: 60Hz (NTSC-720p) H: 33KHz V: 60Hz (NTSC-1080i) H: 67.5KHz V: 60Hz (NTSC-1080P) F-Type TV RF connector NTSC system...
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AV/Composite Video (CVBS) Connector a. Frequency: H: 15.734KHz V: 60Hz (NTSC) b. Signal level: Video ( Y + C ):1Vp-p Sync (H+V):0.3V below Video (Y+C) c. Impedance: 75Ω d. Connector type: RCA Jack Component video Connector a. Frequency: H: 15.734KHz V: 60Hz (NTSC-480i) H: 31KHz V: 60Hz (NTSC-480p) H: 45KHz V: 60Hz (NTSC-720p) H: 33KHz V: 60Hz (NTSC-1080i)
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Analog Audio out a. Signal level: 2 Vrms (Max) b. Impedance: 1.5KΩ c. Frequency Response: 20Hz-20KHz d. Connector type: RCA L/R Page 5-5 CONFIDENTIAL – DO NOT COPY File No. SG-0000034...
Chapter 6 Main Board I/O Connections J4 C [Main BD to Power BD] ONNECTION Description +5VSB +5VSB +5VSB +12V +12V +12V POWER SW ON OFF BL ON OFF Lamp Status PWM DIM J9 C [Main BD to LED Logo] ONNECTION Description 5VSB WHITE...
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J3 C [Main BD to Key pad BD] ONNECTION Description +5VSB ENCODER A ENCODER C J5 C [Main BD to SPEAKER ] ONNECTION Description TCN3 C [I2C INTERFACE] ONNECTION Description N.C. SDA_TPS SCL_TPS CONFIDENTIAL – DO NOT COPY Page 6-2 File No.
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TCN1 C ONNECTION CONFIDENTIAL – DO NOT COPY Page 6-3 File No. SG-0000034...
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TCN2 C ONNECTION CONFIDENTIAL – DO NOT COPY Page 6-4 File No. SG-0000034...
Chapter 7 Theory of Circuit Operation The route of D-SUB 15pin input An RGB (analog) signal is inputted the D-SUB 15pin to the MT5376 which transfers it to a digital signal by the A/D converter. Then MT5376 generates a Low Voltage Differential Signal (LVDS) for display device.
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The operation of keypad There are 7 Buttons to control and to select the function of E370VP/E420VP. Also, there is a LED back light under the LED lens to indicate the status of operation (OFF => STANDBY, White => ON). MT5376 Ⅰ.
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Functional Block Diagram GENERAL FEATURE LIST Host CPU 1. ARM926EJS 2. 16K I-Cache and 16K D-Cache 3. 16K Boot ROM 4. 8KB Instruction TCM 5. JTAG ICE interface 6. Watch Dog timers 7. Build-in CPI analyzer and Cache Hit Rate Meter Page 7-3 CONFIDENTIAL –...
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Transport Demultiplexer 1. New generation 2 demux design 2. Supports a serial or parallel transport stream input 3. Supports ATSC, MPEG-2 transport stream input 4. Supports DES / 3-DES / AES de-scramblers 5. Up to 8-PID even/odd keys for descrambling 6.
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Image Resizer Supports 16bpp/32bpp direct color format. Supports 420/422 video format. Supports 420/422/444 JPEG format. Arbitrary ratio vertical/horizontal scaling of video, from 1/128X to 128X Simple DMA. OSD Plane Two linking list OSDs with multiple color mode and one of them has up-scaler Video Plane Supports video freeze and over scan.
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LVDS Support 6/8/10-bit one-link, or 6/8-bit dual-link LVDS transmitter, Built-in spread spectrum for EMI performance Programmable panel timing output CVBS In On-chip 54 MHz 10-bit video ADC Supports PAL (B,G,D,H,M,N,I,Nc), NTSC, NTSC-4.43, SECAM NTSC/PAL supports 3D/2D comb filter Built-in motion-adaptive 3D Noise Reduction VBI data slicer for CC/TT decoding Supports 1 S-Video.
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Video bypass ATV bypass TV audio demodulator Supports BTSC / EIA-J / A2 / NICAM / PAL FM / SECAM world-wide formats Standard automatic detection Stereo demodulation, SAP demodulation Mode selection (Main/SAP/Stereo) DRAM Controller 16/32-bit DDR2 interface Support DDR2 750 MHz. Supports 256Mb to 512Mb (MT5376) or 1 Gb (MT5388) DDR2 DRAM device.
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S/PDIF interface One SPDIF out Digital TV (ATSC) Demodulator Compliant with ATSC digital television standard Support SCTE DVS-031 and ITU J.83 Annex B digital CATV standard Accept direct IF (44 MHz or 43.75 MHz) and low IF (5.38 MHz) NTSC interference rejection capability Pass all Brazil fading channel ensembles Meet all ATSC/A74 requirements Excellent adjacent and co-channel rejection capability, only a single SAW is required...
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IC Outline The MT5376 is 256-pin LQFP 3.3V/1.1V and 1.8V for DDR2 Electrical Characteristics 1. Absolute Maximum Rating 2. DC Characteristics Page 7-9 CONFIDENTIAL – DO NOT COPY File No. SG-0000034...
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3. Thermal Characteristics 4. DDR2 ELECTRICAL Characteristics and DC Operating Condition 5. DDR2 AC Operating Condiction Page 7-10 CONFIDENTIAL – DO NOT COPY File No. SG-0000034...
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Flash: MX25L6445E Page 7-11 CONFIDENTIAL – DO NOT COPY File No. SG-0000034...
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GDDR2: NT5TU32M16CG Page 7-29 CONFIDENTIAL – DO NOT COPY File No. SG-0000034...
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Audio Amplifier: TPA3110D2 Page 7-30 CONFIDENTIAL – DO NOT COPY File No. SG-0000034...
Chapter 8 Waveforms RGB mode: Line Pattern (one white one black) ; Pi G data B data R data CONFIDENTIAL – DO NOT COPY Page 8-1 File No. SG-0000034...
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Full white pattern ; Pixel-clock = 25.175MHz ( 640x480 / 60Hz ) G data B data R data CONFIDENTIAL – DO NOT COPY Page 8-2 File No. SG-0000034...
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LVDS CLK1+ CLK1- CLK2+ CLK2- CONFIDENTIAL – DO NOT COPY Page 8-3 File No. SG-0000034...
Chapter 9 Trouble shooting MONITOR DISPLAY NOTHING (PC MODE) Start Is Power board output +5VSB ? AC power is ON? Is J4 connector good? Is fuse(F1) OK? It is in power saving Check video cable Is the timing supported? LED is white? Check sync input Check VGA SOG rout if analog (SOG)
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COMPOSITE IS NOT DISPLAY CORRECTLY Start 1. Check video Input signal good? 2. Check DVD player 1.Check signal between P2 2.Check power 12V& 5V P2 input correct? 1. Check U15 :DV33 & VCCK & AV33 & AV125 & DDRV U15 output correct? 2.
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COMPONENT IS NOT DISPLAY CORRECTLY Start 1.Check video Input signal good? 2.Check host’s setting 1.Check signal between P2 P2 input correct? 2.Check power 12V& 5v 1.Check signal between U15&P2 2.Check U15 Clock (54MHZ) U15 input correct? 3.Check U15 :DV33&VCCK&AV33&AV125 1.Check U15 LVDS output correct ? 2.
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HDMI ) IS NOT DISPLAY CORRECTLY Start 1.Check video Input signal good? 2.Check host’s setting 1.Check U46 power 2.Check between signal U15 U46 no data out ? 3.Check U15 clock 54MHZ 1.Is TCN1& TCN2 connected good? 2.Is panel working ok? –...
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TROUBLE OF DC-DC CONVERTER Start The voltage is 5VSB 1. Check power board 2. Check power cable connection J4 J4 PIN1,2,3 The voltage is +12V while power switch on 1. J4 connection good J4 PIN 8,9,10 2. Check power board 3.check J4 pin11 is ok The voltage is VCCK while power CE15...
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TROUBLE OF DDC READING Start Support DDC1/2B Analog DDC OK? 1. VGA cable ok? 2. Check signal (U22 to P5) 3. Check U22 Voltage 4. Is compliant protocol? Support DDC1/2B HDMIDDC OK? 1. HDMI cable ok? 2. Check signal (U31 to P7) 3.
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(TV_SIDE, AUDIO) IS NOT DISPLAY CORRECTLY Start 1. Check Audio source Input signal good? 2. Check the player of source 1. Check signal of Main Board 2. Check amplifier (U51) Input correct? Check MT5387 audio out ,R838 & R839 Check signal correct? 1.
IC 13-CH LEVEL SHIFTER TPS65194RGER QFN 24PIN LF IC AUDIO POWER AMP 10W TPA3110LD2PWPR HTSSOP28 043070849615 043070865615 IC AUDIO OP DRV632PWR TSSOP-14 LF 043070875903 IC DDR2 32Mx16 NT5TU32M16DG-AC BGA 84PIN HF 180101414030 FRONT BEZEL(ABS 94-HB/T52013)(42LV4400-US)ASS'Y 180102346010 REAR COVER(HIPS FR/T52013)(42LV4400)ASS'Y 180105437010 BASE(ABS 94-HB/T52013)(42LV4400)ASS'Y 180119652010 SIDE JACK COVER(42LV4400)ASS'Y 181201021420 MAIN SHIELDING(CGCC 0.6t)(42LV4400)ASS'Y...
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PE BAG (250W*370L*0.04t)(LDPE)(A176G ㄕ AD196G) 192511002551 192511003140 PE BAG 340*230*0.08T (VOJ370) 192511004080 PE BAG(W550*L350*0.06t)(M420SV) 192511004130 EPE BAG(W1100*L850*0.5t) 192512018280 CARTON (AB/Flute)42LV4400 LGE_A1 Type 192513014030 MANUAL _US(32LV2400_42/47/55LV4400) LGE 192514003700 WARRANTY CARD(3840TWL056A) LGE USA 192514004370 WORLDWIDE CEA FLYER LGE 192514004380 REGISTRATION CARD LGE...
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IC 13-CH LEVEL SHIFTER TPS65194RGER QFN 24PIN LF IC AUDIO POWER AMP 10W TPA3110LD2PWPR HTSSOP28 043070849615 043070865615 IC AUDIO OP DRV632PWR TSSOP-14 LF 043070875903 IC DDR2 32Mx16 NT5TU32M16DG-AC BGA 84PIN HF 170105438010 BASE? NECK(GFABS-20 94-HB/T52013)(42LV4400) FRONT BEZEL(STREAMER)(ABS 180101415010 94-HB/T52013)(47LV4400-US)ASS'Y 180102347010 REAR COVER(HIPS FR/T52013)(47LV4400)ASS'Y 180119652010 SIDE JACK COVER(42LV4400)ASS'Y...
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PART NO DESCRIPTION REMARK 192510012500 EPS FOAM_TL(47LV4400) 192510012510 EPS FOAM_TR(47LV4400) 192510012520 EPS FOAM_TM(47LV4400) 192511000260 PE BAG 50*80*0.06T 192511003140 PE BAG 340*230*0.08T (VOJ370) 192511003561 EPE BAG(W1200*L850*0.5t)(M420NV) 192511003571 PE BAG(W550*L350*0.06t)(M420NV) 192511004160 PE BAG(W250*L275*0.06t) (S220HQL ) 192512018290 CARTON (AB/Flute)47LV4400 LGE_A1 Type 192513014030 MANUAL _US(32LV2400_42/47/55LV4400) LGE 192514003700 WARRANTY CARD(3840TWL056A) LGE USA 192514004370...
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POWER CORD 1800mm 125V UL/CSA 90' LF 364705020393 060360000030 BATTERY ALKALINE 1.5V AAA LR03 DMEGC consign parts LF 364705020393 060360000010 Battery Alkaline 1.5V AAA (601-LR03) ROCKET 364705020393 098003064050 REMOTE MKJ36998126 (LG) LF 364705020393 172310042030 TAP. SCREW-TP #4.0*20.0L,BLK-ZN 364705020393 172500041250 MAC SCREW-MB M4.0*12.0L,BLK-Ni,NYLOK 364705020393 192511000260 PE BAG 50*80*0.06T...
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ALL CAPACITOR VALUES IN uF UNLESS NOTED. ALL RESISTORS 25 VOLT IN .1uF UNLESS NOTED. M= METAL 1% PWM_TOUT2 PWM_TOUT2_LPB APPROVED BY: APPROVED BY: APPROVED BY: 05/11 del TECHNOLOGY TECHNOLOGY TECHNOLOGY 42LV4400(364213320150) 42LV4400(364213320150) 42LV4400(364213320150) MODEL MODEL MODEL 47LV4400(364705220150) 47LV4400(364705220150) 47LV4400(364705220150) CHECKED BY: CHECKED BY: CHECKED BY:...
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DDRV R790 R790 TECHNOLOGY TECHNOLOGY TECHNOLOGY 1K_F 1K_F Main Chip Bottom Side NEAR MT5387 pin 219 42LV4400(364213320150) 42LV4400(364213320150) 42LV4400(364213320150) near MT5387 near pin 203&212 near pin 177&182 near pin 220&225 near pin 236&241 near pin 166&171 near pin 187&192 near pin 231 near pin 246&249...
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R162 High = > LVDS_VDD ON Low = > LVDS_VDD OFF 1,2,3,4,5,6,7,8,10,11,12,13,14,15,16 P12V 37HD with LG LC370WXN LVDS_ROTATE : high for LVDS select JEIDA(pin9) LVDS_OPTION : high for OPC_Enable (pin10) others : low for GND LVDS_3V3 37FHD with LG LC370WUN...
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SENSOR_IN close to J6 0805R 0805R close to 5387 R855 R855 APPROVED BY: APPROVED BY: APPROVED BY: C254 C254 TECHNOLOGY TECHNOLOGY TECHNOLOGY 42LV4400(364213320150) 42LV4400(364213320150) 42LV4400(364213320150) MODEL MODEL MODEL 47LV4400(364705220150) 47LV4400(364705220150) 47LV4400(364705220150) CHECKED BY: CHECKED BY: CHECKED BY: CIRCUITY CIRCUITY CIRCUITY...
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[RBF] AGP Mode Selection Pin L :No signal Black, H : AGP (Default vlaue[open] : " L") [DISM] : LVDS Data mapping selection Pin L : LG format, H : DISM format (Default value [open] : "L") [I2C_EN] : I2C Master Operation Pin...