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Summary of Contents for LC-32LE440U

Page 1: ...SERVICE MANUAL LCD COLOR TELEVISION MODEL LC 32LE440U ...

Page 2: ... INFORMATIONS 1 MAJOR IC INFORMATIONS 37 CHAPTER 6 BLOCK DIAGRAM WIRING DIAGRAM 1 BLOCK DIAGRAM 41 2 POWER MANAGEMENT BLOCK DIAGRAM 42 3 WIRING DIAGRAM 42 CHAPTER 7 PRINTED WIRING BOARD 1 MAIN UNIT PRINTED WIRING BOARD 43 2 POWER UNIT PRINTED WIRING BOARD 45 3 KEY UNIT PRINTED WIRING BOARD 47 4 IR UNIT PRINTED WIRING BOARD 47 CHAPTER 8 SCHEMATIC DIAGRAM 1 MAIN SCHEMATIC DIAGRAM 48 2 POWER SCHEMATI...

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Page 5: ...gital AIR CABLE INPUT2 HDMI in with HDCP INPUT3 HDMI in with HDCP Audio PC HDMI Audio in Ø 3 5mm jack Rear PC IN Analog RGB PC in 15 pin mini D sub female connector Headphone out Ø 3 5mm jack Audio output SPDIF HDMI in with HDCP RS 232C D sub 9 pin for service Hotel mode using INPUT1 HDMI in with HDCP Terminal Side USB Photo Music Video mode Software update OSD language English French Spanish Powe...

Page 6: ... 2 DIMENSIONS 5 ...

Page 7: ...ts 1 Assy Panel Removal Notes Please put your machine on soft material to avoid scrape panel when you disassemble it Front view Fig 1 Back view Fig 2 Step1 Remove the Base Assy 1 Remove the 4 screws as Fig 3 and pull out the base Fig 3 ...

Page 8: ...7 Step 2 Remove the REAR COVER Assy 1 Remove the 13 screws around the REAR COVER as Fig 4 Fig 4 2 Remove the 4 screws at the IO area as Fig 5 Fig 5 ...

Page 9: ...8 3 Remove the 3 screws to release AC cable as Fig 6 Fig 7 Fig 6 Fig 7 Step3 Remove the Main Power IR board Key Pad ASSY and the Speakers Fig 8 ...

Page 10: ...9 1 Remove the 5 screws and disconnect 4 cables Detach the Main board ASSY as Fig 9 Fig 9 ...

Page 11: ...10 2 Remove the 4 screws and 2 Cables Detach the Power board as Fig 10 Fig 10 3 Remove the 1screws Detach the IR board as Fig 11 Fig 11 ...

Page 12: ...11 4 Remove the 1screws Detach the Key Pad ASSY as Fig 12 Fig 12 5 Detach the Speakers as Fig 13 Fig 14 Fig 13 Fig 14 ...

Page 13: ...12 Step4 Remove BASE SUPPORT Remove the 4 screws and 2 cable clamps Detach the BASE SUPPORT as Fig 15 Fig 15 ...

Page 14: ...13 Step5 Remove PANEL module 1 Remove the 4 screws Detach the PANEL HOLDER as Fig 16 Fig 17 Fig 18 Fig 16 Fig 17 Fig 18 ...

Page 15: ...100 50 Color 0 100 50 Tint 50 50 0 Sharpness 0 20 10 Color Temp User Cool Standard Warm R Gain 0 255 G Gain 0 255 B Gain 0 255 Color Temp Reset Yes No Active Contrast Off On DI Film Mode Off Auto Advanced Digital Noise Reduction Off Low Middle High Auto Picture Settings Reset Only reset currect AV mode settings Yes No Disable when AV mode is Dynamic Fixe d Treble 0 100 50 Bass 0 100 50 Balance 50 ...

Page 16: ... CC3 CC4 TEXT1 TEXT2 TEXT3 TEXT4 View Option Change CC Digital Closed Caption Off Service1 Service2 Service3 Service4 Service5 Service6 Audio Setup Off Dolby Digital PCM Auto Sync H Pos V Pos Clock PC input For PC only Fine Sync Phase Audio Select For PC only Video Video Audio Audio Select For HDMI only Auto HDMI Digital HDMI Analog HDMI Setup For HDMI only HDMI Mode Auto Graphic Video Input Termi...

Page 17: ...d Color Black White Green Blue Red Cyan Yellow Magenta Background Opacity Solid Translucent Transparent Window Color Black White Green Blue Red Cyan Yellow Magenta For TV AV only Window Opacity Solid Translucent Transparent EZ Setup Air Cable Air Cable CH Search CH Setup CH Memory A B C D Initial Setup Broadcasting Setup For TV only Favorite CH All Data Clear Yes No ...

Page 18: ... X NONE TV Guidelines TV Y TV Y7 TV G TV PG TV 14 TV MA NONE D L S V FV Can English Ratings E C C8 G PG 14 18 NONE V Chip Can French Ratings E G 8ans 13ans 16ans 18ans NONE V Chip DTV Only Individaul Setup Input Secret No For TV AV only Parental CTRL Status No Yes Reset Yes No Information Identification ...

Page 19: ... Pattern to Medium 3 Enter VideoÆColor Temperature adjust Color temperature adjust 1 Set color temperature to Cool 2 Adjust R Gain G Gain values to meet Cool color coordinates Keep B Gain set 128 3 Adjust R Offset G Offset values to meet Cool color coordinates Keep B Offset set 128 4 Repeat step 2 3 4 twice to meet Cool color coordinates specification below 5 Set color temperature to Warm Standard...

Page 20: ...inates with a same reference TV set 3 Luminance 320 cd m2 in the center of the screen when Brightness control at 100 Contrast control at 100 Backlight control at 100 Test Color mode Standard 2 SERVICE MODE Enter factory mode menu press MENU Numeric keys 3481 to enter factory mode You can press RETURN key to back to normal main menu ...

Page 21: ...mware pkg to USB disk Ex Version V2 0 copy NAS2_89 pkg to USB disk IV Insert the USB disk to TV USB port V TV AC power off AC power on VI TV will upgrade by itself after detect the USB disk condition and the content of the pkg file Note TV s LED will flash during upgrade process VII After finish upgrade process TV will reboot by itself VIII Remove USB disk from TV IX Press MENU select InformationÆ...

Page 22: ...102 normal NO YES NO YES NO YES Check IC U2102 and its peripheral circuits Is audio signal input to pin 6 AOSDATA0 pin 7 AOBCLK pin 8 AOLRCK and pin 5 AOMCLK of IC U6101 AMP Check the line between IC U2102 and IC U6101 Is MUTE circuit YDA_MUTE normal Check the PD R6130 Q6101 R6134 etc Is the audio signal output of pin 1 2 L ch and pin 3 4 R ch of CN6101 AOUDIO CONNECTOR normal Check IC U6101 and i...

Page 23: ... when UHF VHF is received MAIN UNIT YES NO Is the DIF signal output from pin 10 and pin 11 of TUNER TU9101 NO Check the tuner and its peripheral circuits Replace as required Is the DIF signal sent to pin 58 and pin 59 of IC U2102 Check IC U2102 its peripheral circuits YES Refer to No sound output in all modes ...

Page 24: ...ut MAIN UNIT YES NO Is the audio signal properly sent to pin 8 and pin 10 of CN1202 NO Check the connection to CN1202 and the external input device Is the audio signal properly sent to pin 68 AIN0_R and pin 70 AIN0_L of IC U2102 Check the line between CN1202 and IC U2102 YES Refer to No sound output in all modes ...

Page 25: ...N UNIT YES NO Is the audio signal properly sent to pin 3 and pin 2 of CN1102 NO Check the connection to CN1102 and the external input device Is the audio signal properly sent to pin 67 AIN1_R and pin 69 AIN1_L of IC U2102 Check the line between CN1102 and IC U2102 YES Refer to No sound output in all modes ...

Page 26: ...udio format correct Change to correct mp3 format MAIN Is the USB 5V Q7105 sent to pin 1 of CN1104 Is the USB con CN1104 signal properly sent to pin 233 USB_DM0 and pin 234 USB DP0 of IC U2102 Refer to No sound output in all modes NO NO Check the connection to Q7105 and the external input device Check the line between CN1104 and IC2102 ...

Page 27: ... 12 OUTL and pin 3 OUTR of IC U6201 to Jack CN6201 Terminal Check IC U2102 and its peripheral circuits Is the audio signal output from IC U2102 pin 74 AL1O and pin 76 AR1O to pin 3 OUTR and pin 12 OUTL of IC U6201 Check the connection to HPOL R OUT and external devices Check the line between IC U2102 and IC U6201 YES No No ...

Page 28: ...nal CN6202 Is input source on HDMI The SPDIF out not support HDMI source No Is the audio signal output from IC U2102 pin 92 ASPDIF sent to CN6202 No Check IC U2102 and its peripheral circuits Change input source to others AV TV etc Check the line between IC U2102 and CN6202 Terminal ...

Page 29: ...CKN ECKP No picture on the display 1 The picture doesn t appear in all modes Check signal BL_PWM BL_ON PSON ID_0 1 2 LVDS_Power _ON LVDSVDD are normally or not Similarly is the LVDS signal input to connector of the panel module Check the panel module Check IC U2102 and its peripheral control circuits Check relative components are ok or not Wire harness is checked NO NO YES YES YES ...

Page 30: ...2 or not Is the DIF signal output from pin 10 and pin 11 of TUNER TU9101 Is the DIF signal sent to pin 58 and pin 59 of IC U2102 Refer to The picture doesn t appear in all modes Check each power IC and peripheral components are correct or not Check the tuner and its peripheral circuits Replace as required Check IC U2102 its peripheral circuits NO NO NO YES YES YES ...

Page 31: ...input into pin RX3_2 RX3_2B RX3_1 RX3_1B RX3_0 RX3_0B RX3_C RX3_CB of IC U2102 Refer to The picture doesn t appear in all modes Check the line between pin 78 of IC U2102 and CN8103 Check the line between IC U2102 and NO NO YES YES Is the HOT_PLUG detection function of pin 19 of HDMI terminal CN8103 Check the connection and setup with the external HDMI devices ...

Page 32: ...t into pin RX1_2 RX1_2B RX1_1 RX1_1B RX1_0 RX1_0B RX1_C RX1_CB of IC U2102 Refer to The picture doesn t appear in all modes Check the line between pin 7 of IC U2102 and CN8101 Check the line between IC U2102 and NO NO YES YES Is the HOT_PLUG detection function of pin 19 of a HDMI terminal CN8101 Check the connection and setup with the external HDMI devices ...

Page 33: ...t into pin RX2_2 RX2_2B RX2_1 RX2_1B RX2_0 RX2_0B RX2_C RX2_CB of IC U2102 Refer to The picture doesn t appear in all modes Check the line between pin 1 of IC U2102 and CN8102 Check the line between IC U2102 and NO NO YES YES Is the HOT_PLUG detection function of pin 19 of a HDMI terminal CN8102 Check the connection and setup with the external HDMI devices ...

Page 34: ...deo format correct Is the USB 5V sent to pin 1 of YES Change to correct jpg or jpeg or png or bmp format NO NO Check the fuse F1101 and the external input device Is the USB con CN1104 signal properly sent to pin 233 USB_DM0 and pin 234 USB_DP0 of IC U2102 YES Refer to The picture doesn t appear in NO Check the line between CN1104 and IC YES ...

Page 35: ...gged into component Main UNIT Is Component Y Pb Pr signal sent to pin 2 Y 4 Pb 6 Pr of CN1202 External input Input Component No picture on the YES Check the setting of an external input device that connects of CN1202 NO NO Check the line between IC U2102 and Refer to The picture doesn t appear in YES Terminal ...

Page 36: ... Set the timing which TV is support NO Terminal Is R G B H V signal sent to pin 1 RED 2 Green 3 BLUE 14 H sync Is R G B H V signal sent to pin 32 RED 30 Green 28 BLUE YES Main UNIT YES Refer to The picture doesn t appear in Check the setting of an external input device that connects of CN1101 NO Check the line between IC U2102 and NO YES ...

Page 37: ...ctifier diode to check the output voltage Is the voltage of 12V applied to pin 11 12 13 of CN201 Does the standby circuit normal QM104 TM101 ZD102 DM103 the circuit around the um102 and protection circuit ect is checked Is 5V output as for power on off switch when is on YES Is 24V output as for power on off switch when is on Does the UM103 UM108 LM101 and the circuit around IC UM103 UM108 Check th...

Page 38: ...t details for still pictures The special color processing technology provides natural deep colors and true studio quality video Also the MT5389FUNU family has built in high resolution and high quality audio codec Rich Features for High Value Products The MT5389FUNU family enables true singlechip experience It integrates high quality HDMI1 4a high speed VGA ADC LVDS mini LVDS option EPI option USB2...

Page 39: ...8n prefetch architecture is combined with an interface designed to transfer two data words per clock cycle at the I O pins A single read or write operation for the DDR3 L SDRAM consists of a single 8n bit wide four clock data transfer at the internal DRAM core and two corresponding n bit wide one half clock cycle data transfers at the I O pins Read and write operation to the DDR3 L SDRAM are burst...

Page 40: ...eighted Filter Efficiency 92 VDDP 12V RL 8Ω Po 10W Channel Separation 80 dB VDDP 12V RL 8Ω 1kHz Power Limit Function 15W RL 8Ω min THD N 10 Output Mute Function Quick Mute Quick Start Sleep Function Pop Noise Reduction Function Overcurrent Protection Function OCP Over Temperature Protection Function OTP Under Voltage Lockout UVLO DC Detection Function DCDET Clock Detection Function CKDET Package L...

Page 41: ...ons for power management are available when the serial port is inactive The auto powerdown feature functions when FORCEON is low and FORCEOFF is high During this mode of operation if the device does not sense a valid RS 232 signal on the receiver input the driver output is disabled If FORCEOFF is set low and EN is high both the driver and receiver are shut off and the supply current is reduced to ...

Page 42: ...AM 1 BLOCK DIAGRAM TUNER YDA175 AUDIO AMP LVDS OUT SPEAKER 1Gb DDR3 8MB FLASH H702F RS 232 HDMI3 Rear HDMI2 Rear Side HDMI1 PC INPUT I2S YPbPr CVBS USB SPDIF Output ASPDIF NAFTA NAFTA Side Side Earphone Hotel Mode MT5389 Earphone amp DRV632 ...

Page 43: ...parts one is interface board including USB and TV tuner et the other is inverter board and audio circuit 24V output is inverter part the system block diagram as below the last is panel Vcc and audio the power is 12V DC 24V 1 6A output to Inverter Standby DC 5 3V 2A output to IF BD DC DC Rectifier filter ACD DC 12V 2 23A output to Audio AC INPUT EMI ACD fig 1 3 WIRING DIAGRAM ...

Page 44: ...43 CHAPTER 7 PRINTED WIRING DIAGRAM 1 MAIN UNIT PRINTED WIRING BOARD LC 32SV40U LC 42SV50U LC 46SV50U TOP ...

Page 45: ...44 BOTTOM ...

Page 46: ...45 2 POWER SCHEMATIC DIAGRAM POWER BOARD WITH TOP BOTTOM VIEW Top Layer ...

Page 47: ...46 Bottom Layer ...

Page 48: ...47 3 KEY UNIT PRINTED WIRING BOARD 4 IR UNIT PRINTED WIRING BOARD ...

Page 49: ...48 CHAPTER 8 SCHEMATIC DIAGRAM 1 MAIN SCHEMATIC DIAGRAM 01 System POWER ...

Page 50: ...49 02 MT5389 ...

Page 51: ...50 03 DDR3 DRAM Flash ...

Page 52: ...51 04 Peripheral IR Keypad ESD ...

Page 53: ...52 05 HDMI ...

Page 54: ...53 06 VGA RS 232 USB ...

Page 55: ...54 07 YPbPr ...

Page 56: ...55 08 Audio amp ...

Page 57: ...56 09 Headphone line out SPDIF ...

Page 58: ...57 10 LVDS 11 Tuner ...

Page 59: ... 250V FUSE 250 LX101 CHK 251 IND LC 2222 1806 4 1 3 2 RX102 470K R1206 CX101 0 33u 275V CAP CSX 1809 150 CX102 0 33u 275V CAP CSX 1809 150 CY101 1000p 250V CAP CSY 100 LX102 CHK 251 IND LC 2222 1806 4 1 3 2 CY103 1000p 250V CAP CSY 100 VZ102 RES RT WD165 075 1 2 RT101 NTC 2 5Ω 8A RES RT WD165 075 Fig 7 CN101 is a connector for connecting AC Power F101 F102 are fuse to protect all the circuit AC In...

Page 60: ...805 P NC NC INN801BGS UM102 1 4 5 2 8 3 7 6 EN DIS GND GATE COMP HV CS NC VDD A CM116 C0805 P 0 1u 50V CM112 2 2u 16V CM113 C0805 P 1000p 50V HS1 Hestsink1 HS 43 5X45 1 1 2 RM118 R1206 270 RM102 20ohm 3W RES 3W COMP VCC DM104 DIO 1N4148 SN4148 HS2 Hestsink2 HS 30 7X47 9 1 2 CP111 68u 450V CAP CE D125 1250R RM111 20K R1206 CM114 C0805 P 1000p 50V BD QM103 TRS SOT23 BEC MMBT4401 1 3 2 RM117 R1206 10...

Page 61: ...05 P 5 1K 1 ZD101 15V DIO ZD 1206 CM135 C0805 P 100p 50V OVP 5V RM146 R0805 P NC RM147 R0805 P 33K 1 QM109 TRS SOT23 BEC NC 1 3 2 UM105 LTV 817M C IC LTV817M 3 1 4 2 DM107 0 CM147 C0805 P NC PSON RM154 R0805 P 5 1K 1 RM135 R0805 P 20K 1 Fig 9 RM201 330 1 R1206 DIS QM202 MMBT4401 TRS SOT23 BEC 1 3 2 RM202 10K R0805 P RM203 82K R0805 P CM201 0 01u 50V C0805 P OVP UM110 LTV 817M C IC LTV817M 3 1 4 2 ...

Page 62: ...4V FBI VDC CM105 CAP CE D100 1016R 470u 35V CM131 C0805 P 10P 50V DM106 DIO 1N4148 SN4148 24V CM160 0 1u 50V C0805 P CM129 0 1u 50V C0805 P RM152 R0805 P 100K 1 DM101 SR506F79 LF DIO DO201AD 200A 1 2 RM221 R0805 P NC RM151 R0805 P 390K 12V 12V FB RM136 R0805 P 56K 1 RM181 4 7K 1 R1206 CM136 C0805 P 1000p 50V RM142 20ohm R1206 12V RM125 R0805 P 2 1 VDC RM134 R0805 P 100K RM129 0 05 2W 1 R2512 RM126...

Page 63: ...s a current mode PWM controller with excellent power saving operation It features a high voltage current source to directly supply the startup current from two half wave rectifier diodes further to provide lossless startup circuit Max start up current for UM102 is 10mA When current flow from two half wave rectifier diodes through RM107 and RM111 gets to HV pin to start up UM102 Meanwhile the VCC s...

Page 64: ...power consumption it s a high impedance pin Therefore proper layout is necessary for noise immunity If capacitor is unavoidable capacitor value should be carefully calculated and not to influence system operation UM102 control 12V output UM103 UM108 LM101 construct buck circuit to output 5V UM104 LM103 QM105 construct buck circuit to output 12V ACD circuit is to make the backlight shutdown in time...

Page 65: ...DA Light_Sensor_I2C C109 1u 16V R111 NC 1K C104 NC 1000p 50V U101 FM 1038FN 5CN 3 2 1 4 VCC VOUT GND GND IR D103 0 055p 24V R114 51K D102 NC 5VSB C101 NC 10u 10V I2C_SCLK D105 0 055p 24V Q101 NC PMBT3904 1 3 2 5VSB R104 22 D102 CN101 6P 1 25mm 90 2 3 4 5 6 7 1 8 D101 C107 100p 50V ADC_SDA Dual LED R off G on ADC_SDA R106 1K R113 NC 10K R103 NC 0 R101 47 D101 NC 5VSB LED1_ON_OFF R107 NC 1K D107 NC ...

Page 66: ...tion Usage Photo 1 Panel 9JY76040NG00531G LCD Module TFT TV V315B5 LE3 1 2 9JY0132CTG04100 LC 32LE440U CTG04 Mother Board 1 3 9JY0932CTG04000 LC 32LE440U CTG04 Power Board 1 4 9JY0332CTG05000 LC 32SV40U CTG05 Keypad Board 1 5 PCBA 9JY0432CTG05000 LC 32SV40U CTG05 IR Board 1 6 9JY01200019577 FRONT BEZEL ASSY CTG04 1 7 9JY01200019573 BASE ASSY CTG04 1 8 Cosmetics 9JY02500012541 NECK SUPPORT ASSY CTG...

Page 67: ...ly 420mm 10mm G 1 16 9JY35101MC0020UG LCD Cable Assembly 220mm 5mm G 1 17 9JY35110FQ0033TG FFC Cable Assembly 200mm 3mm 1mm 30 G 1 18 9JY35101MT0020UG LCD Cable Assembly 850mm 20 0mm G 1 19 Cable 9JY35071BP00600G AC Power Cable 1 6m 0 10m 50mm 18AWG 5PIN 2PIN G 1 20 Speaker 9JY57020Q100975G Speaker Unit 6ohm 5W G YDT30120N R001B06 1 22 Accessory 9JY600153G00886G Remote Controller IR NEC 8m G RC LC...

Page 68: ......

Page 69: ...LC 32LE440U CTG04 Mother Board 1 11 9JY02500012530 IF SHIELDING CTL02 1 12 9JY02500012535 SIDE I O BRACKET ASSY CTG04 1 13 9JY02500012541 NECK SUPPORT ASSY CTG04 1 14 9JY01200009937 ASSY BACKCOVER CTG04 1 15 9JY01200019663 AC COVER VT464D 1 16 9JY01200019573 BASE ASSY CTG04 1 17 9JY06000013236 SCREW B CROSS M5 44 5 Zn black 4 18 9JY06000013256 SCREW B CROSS T T 4 10 BLK ROHS 26 19 9JY06000013257 S...

Page 70: ...te Controller IR NEC 8m G RC LCDTV 520 2 9JY89010330021YG Primary Battery 1 5V Zn Mn Battery 44 5mm 10 5mm G GLR03A 9JY01200019573 BASE ASSY CTG04 3 9JY06000013236 SCREW B CROSS M5 44 5 Zn black 4 9JY08400017274 USER MANUAL NAFTA CTG04 5 9JY08400017277 REGISTRATION CARD NAFTA ...

Page 71: ...70 4 PACKING PARTS ...

Page 72: ...troller IR NEC 8m G RC LCDTV 520 1 9 9JY08400017520 BAG PE L90 W60MM VI1906 1 10 9JY06000013236 SCREW B CROSS M5 44 5 Zn black 4 11 9JY89010330021YG Primary Battery 1 5V Zn Mn Battery 44 5mm 10 5mm G GLR03A 2 12 9JY08400017316 CUSHION TL CTG04 1 13 9JY08400017314 CUSHION BL CTG04 1 14 9JY08400017315 CUSHION TR CTG04 1 15 9JY08400017313 CUSHION BR CTG04 1 16 9JY751202000600G LC 32LE440U CTG04 1 17 ...

Page 73: ...72 ...

Page 74: ... Controller IR NEC 8m G RC LCDTV 520 1 9 9JY08400017520 BAG PE L90 W60MM VI1906 1 10 9JY06000013236 SCREW B CROSS M5 44 5 Zn black 4 11 9JY89010330021YG Primary Battery 1 5V Zn Mn Battery 44 5mm 10 5mm G GLR03A 2 12 9JY08400017316 CUSHION TL CTG04 1 13 9JY08400017314 CUSHION BL CTG04 1 14 9JY08400017315 CUSHION TR CTG04 1 15 9JY08400017313 CUSHION BR CTG04 1 16 9JY751202000600G LC 32LE440U CTG04 1...

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