LG 32LC3R Series Service Manual Download Page 19 | Manualshive

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TROUBLESHOOTING

1. No power

(1) Symptom

1) Front LED is No light
2) The Set doesnt discharge little

(2) Check process

Is plug in power cord?

Plug in a power cord

No

Check the PSU

No

Check X-tal X600

No

Check IC600

No

Check Q901

No

Yes

Check P200 Voltage (P-ST_5V)?

Yes

Check X-tal X600 (19.6608MHz)

Yes

Check IC600 Voltage (3.3V)

Yes

Check Power on/off (5V)

Yes

Exchange the PSU

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Summary of Contents for 32LC3R Series

Page 1: ...CE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LP61A FACTORY MODEL 32LC3R ZJ MODEL 32LC3R website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ... 2 CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 9 TROUBLE SHOOTING 19 BLOCK DIAGRAM 22 EXPLODED VIEW 24 REPLACEMENT PARTS LIST 26 SVC SHEET ...

Page 3: ...et such as antennas terminals etc to be sure the set is safe to operate without damage of electrical shock Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead i...

Page 4: ...vely obtain and wear a commercially available discharging wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic charge buildup or exposure of the assembly 3 Use only a ground...

Page 5: ...not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake 2 Securely crimp the leads of replacement component around notch at stake top 3 Solder the connections CAUTION Maintain original spacing between the replaced component and adjacent components and the circuit boa...

Page 6: ...l Specification LCD Module 5 Feature and Function No Item Specification Remark 1 Display Screen Device 32 inch wide Color Display Module LCD 2 Aspect Ratio 16 9 3 LCD Module 26 32 TFT WXGA LCD MAKER AUO CMO LPL 4 Operating Environment 1 Temp 0 40 deg LGE SPEC 2 Humidity 0 85 5 Storage Environment 3 Temp 20 60 deg 4 Humidity 0 85 6 Input Voltage AC100 240V 50 60Hz 7 Power Consumption Power on off m...

Page 7: ...yp 0 280 Typ CIE 1393 Coordinate Y 0 03 0 290 0 03 AUO 26 37 32 Red X 0 640 Y 0 330 Green X 0 290 0 270 Y 0 600 Blue X 0 150 Y 0 060 White X Typ 0 285 Typ CMO 27 32 Y 0 03 0 293 0 03 Red X 0 646 0 652 Y 0 332 Green X 0 269 0 270 Y 0 600 0 589 Blue X 0 142 0 141 Y 0 072 0 068 White X Typ 0 275 Typ 0 03 0 285 0 03 LPL 26 32 Y 0 279 0 293 Red X 0 630 0 640 Y 0 338 0 343 Green X 0 283 0 280 Y 0 607 0 ...

Page 8: ... 72 59 94 74 176 HDTV 1080I 11 1920x1080 33 75 60 00 74 250 HDTV 1080I 12 1920x1080 28 125 50 00 74 250 HDTV 1080I 50Hz 7 Component Video Input Y PB PR 8 RGB Input Analog PC No Resolution H freq kHz V freq kHz Pixel clock MHz Proposed 1 720x480 15 73 59 94 13 500 SDTV DVD 480I 525I 2 720x480 15 75 60 00 13 514 SDTV DVD 480I 525I 3 720x576 15 625 50 00 13 500 SDTV DVD 576I 625I 50Hz 4 720x480 31 47...

Page 9: ... 1 PCB assembly adjustment items Download the VCTP main software IC601 VCPT Channel memory IC603 EEPROM Colorcarrier Adjustment 3 2 SET assembly adjustment items DDC Data input Adjustment of White Balance Factoring Option Data input 4 PCB assembly adjustment 4 1 PCB assembly adjustment method Using VCTP Download program 4 1 1 Download program installation 1 Extract a Zip file 2 Visual I2C LPT Driv...

Page 10: ...rsion as 40 4 Click the Erase Flash button 5 Double click the download file low then edit window will be opened 6 Click the choice button in the edit window then file choice window will be opened 7 Choose the Hex file in folder and execute downloading with click open button Select the Bootloader bat file install VCTP_download Bootloader Push OK Finish the program after saving the file download_cs ...

Page 11: ...V Plate Ass y 1 Push S W ON connect SCL to GND using switch at Jig and connect the download jig to D sub jack 2 Supply the power Stand by 5V and wait for 3 seconds 3 Push the S W off Disconnect SCL to GND using switch at jig 4 Execute Download vi2c program in PC then a main widow will be opened 5 Double click the blue box and confirm Bootloader Version as 40 Push S W Double click Push S W ...

Page 12: ...Choose the Hex file in folder and execute downloading with click open button 10 Click OK button at the edit window 11 Under Downloading progress 12 If download is failed for example No acknowledge from slave execute download again from 1 4 1 2 2 Download method 3 SET 1 Push the Tilt button in an Adjust Remocon Then the LCD TV will change a slave mode 2 Connect Zig to TV using a D sub cable ...

Page 13: ...ned 8 Chick the choice button I n the edit window then file choice window will be opened 9 Choose the Hex file in folder and execute downloading with click open button 10 Click OK button at the edit window 11 Under Downloading progress 12 If download is failed for example No acknowledge from slave execute download again from 1 Double click If you don t push the go the Hex file would not be downloa...

Page 14: ...4 Colorcarrier Adjustment Inspection process a Tuning the RF signal ZJ TJ CJ PAL Philips Pattern with color Bar MJ NTSC Digital Pattern with color Bar b push the adj key in the adjustment remocon 4 2 SET assembly adjustment method Caution Each PCB assembly must be checked by check JIG set Because power PCB Assembly damages to LCD Module especially be careful 4 2 1 EDID The Extended Display Identif...

Page 15: ...instrument only for Auto adjustment AV Pattern Generator ZJ TJ CJ model 202 PAL BDGHI pattern 78 216 Gray MJ model 207 NTSC J pattern 78 216 Gray 6 2 Connecting diagram of equipment for measuring For Automatic Adjustment Push the POWER ON key at the Adjust Remocon before Adjustment of W B the Baud rate PSM CSM will change 115200bps Standard MJ Optimum Normal Auto adjustment Map RS 232C 15 Model Na...

Page 16: ...adjustment mode by pressing the IN START key White Balance on R C 5 5 Stick sensor to center of the screen and select each items Red Green Blue Gain and Offset using CH key on R C 6 Adjust Only High Light with R Gain B Gain using VOL key on R C 7 Adjust it until color coordination becomes as below Initially R G B gain and R G B offset values are fixed as below Red Gain 80 Green Gain 80 Blue Gain 8...

Page 17: ...CJ For MJ XD Auto Advanced Cinema Off Black Level Low Available For HDMI Reset To Set 3 Sound SSM Flat AVL Off TV Speaker On 4 Time Clock Off Time Off On Time PR 1 Vol 30 Off Auto Sleep Off 5 Special Language English Following Buyer s demand PR Child Lock Off Set ID 1 XD Demo To Start 6 Screen Auto Config To Set Available For RGB PC mode Manual Config Phase 0 Available For RGB PC mode Clock 0 H Po...

Page 18: ...put To check the front AV To move channel up down or to select a function displayed on the screen To adjust the volume or accurately control a specific function To set a specific function or complete setting To move the channel down in the PIP screen To use as a red key in the teletext mode To move the channel in the PIP screen To use as a green key in the teletext mode To switch between the main ...

Page 19: ...discharge little 2 Check process Is plug in power cord Plug in a power cord No Check the PSU No Check X tal X600 No Check IC600 No Check Q901 No Yes Check P200 Voltage P ST_5V Yes Check X tal X600 19 6608MHz Yes Check IC600 Voltage 3 3V Yes Check Power on off 5V Yes Exchange the PSU ...

Page 20: ... this elements Is the LVDS cable connected No Yes Are good some elements C R L or Diode at path No Yes Is VCT P IC good No Insert the LVDS cable exactly If it dead or short exchange this elements Exchange the VCT P IC Exchange the Tuner Exchange the VCT P IC No Yes Is the LVDS cable connected No Yes Are good some elements C R L or Diode at path No Yes Check the EDID data No Yes Is AD9381 good only...

Page 21: ...d good No Yes Is IC401 good AD9381 No No Download EDID data once more Exchange IC401 Is sound at Scart1 2 or Component2 RGB or Side AV Good Are good some elements C R L or Diode at Sound path No No Yes Yes Is IC800 good Switching IC No If it dead or short exchange this elements Is sound at RF AV or Component1 Good Are good some elements C R L or Diode at Sound path No Yes No If it dead or short ex...

Page 22: ...BLOCK DIAGRAM 22 ...

Page 23: ... and audio signal processing It accepts the RF precessed signal IF signal from tuner SAW Filter and separates sound and picture from it Scaler is reponsible for regulating the timing of signal to LCD panel and size and location of the signal Graphic control accepts the PC Analog RGB and DVI D Digital signal The signal of PC input is connected to analog port in Scaler and the signal of DVI D input ...

Page 24: ... 24 EXPLODED VIEW 010 050 050 060 070 080 020 090 100 110 040 140 130 120 030 ...

Page 25: ...BR32491301 PCB Assembly Sub SUB T T LP61A 32LC3R ZJ Preamp CKD EBR30666501 PCB Assembly Sub SUB M I LP61A 32LC3R AEUULHX Preamp LED EBR32491401 PCB Assembly Sub SUB T T LP61A 32LC3R ZJ Side AV CKD EBR30713301 Hand Insert PCB Assembly Sub SUB M I LP61A 32LC3R 32LC3R Side AV M I AGU30353102 Plate Assembly ASSY 32LC3 C SKD 6709900016C SMPS AC DC LGLP2637HEP 90 0VTO264 0V 215W 47TO63HZ UL CSA SEMKO YY...

Page 26: ...0TP16VC22M 22uF 20 16 C719 0CE226WF6DC MVK5 0TP16VC22M 22uF 20 16 C727 0CE226WF6DC MVK5 0TP16VC22M 22uF 20 16 C733 0CE226WF6DC MVK5 0TP16VC22M 22uF 20 16 C743 0CE226WF6DC MVK5 0TP16VC22M 22uF 20 16 C744 0CE226WF6DC MVK5 0TP16VC22M 22uF 20 16 C756 0CE476WF6DC MVK6 3TP16VC47M 47uF 20 16 C757 0CE106WH6DC MVK5 0TP25VC10M 10uF 20 25 C758 0CE476WF6DC MVK6 3TP16VC47M 47uF 20 16 C759 0CE476WF6DC MVK6 3TP1...

Page 27: ... 0603B104K500CT 100nF 10 50 C415 0CK104CK56A 0603B104K500CT 100nF 10 50 C416 0CK104CK56A 0603B104K500CT 100nF 10 50 DATE 2006 07 10 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C417 0CK102CK56A 0603B102K500CT 1nF 10 50V C419 0CK104CK56A 0603B104K500CT 100nF 10 50 C420 0CK102CK56A 0603B102K500CT 1nF 10 50V C421 0CK104CK56A 0603B104K500CT 100nF 10 50 C507 0CK103CK56A 0603B103K500CT 10nF 10 50V C508...

Page 28: ...CK104CK56A 0603B104K500CT 100nF 10 50 C614 0CK104CK56A 0603B104K500CT 100nF 10 50 C615 0CK104CK56A 0603B104K500CT 100nF 10 50 C616 0CK104CK56A 0603B104K500CT 100nF 10 50 DATE 2006 07 10 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C617 0CK104CK56A 0603B104K500CT 100nF 10 50 C618 0CK104CK56A 0603B104K500CT 100nF 10 50 C619 0CK104CK56A 0603B104K500CT 100nF 10 50 C620 0CK104CK56A 0603B104K500CT 100n...

Page 29: ...N SPECIFICATION L1007 6210TCE001G HH 1M3216 501JT 500OHM 3 2X L1008 6210TCE001G HH 1M3216 501JT 500OHM 3 2X L101 6200J00005R HB 1M1608 501JT 500OHM 1 6X L1010 6210TCE001G HH 1M3216 501JT 500OHM 3 2X L1011 6210TCE001G HH 1M3216 501JT 500OHM 3 2X L1012 6210TCE001G HH 1M3216 501JT 500OHM 3 2X L1015 6210TCE001G HH 1M3216 501JT 500OHM 3 2X L1017 6210TCE001G HH 1M3216 501JT 500OHM 3 2X L1018 6210TCE001G...

Page 30: ...ESCRIPTION SPECIFICATION AR600 0RHZTCZ001D RCA86TRJ22R0 22OHM 5 1 16W AR601 0RHZTCZ001D RCA86TRJ22R0 22OHM 5 1 16W AR602 0RHZTCZ001D RCA86TRJ22R0 22OHM 5 1 16W R100 0RJ0752D677 MCR03EZPJ750 75OHM 5 1 10W R1001 0RJ0752D677 MCR03EZPJ750 75OHM 5 1 10W R1002 0RJ0752D677 MCR03EZPJ750 75OHM 5 1 10W R1007 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W R101 0RJ0752D677 MCR03EZPJ750 75OHM 5 1 10W R102 0RJ0000D677 M...

Page 31: ... 5 1 10 R350 0RJ2202D677 MCR03EZPJ223 22KOHM 5 1 10 R351 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W DATE 2006 07 10 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R352 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R355 0RJ4700D677 MCR03EZPJ471 470OHM 5 1 10 R358 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W R360 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W R402 0RJ1002D677 MCR03EZPJ103 10KOHM 5 1 10 R404 0RJ1001D677 MCR03EZP...

Page 32: ...1KOHM 5 1 10W R225 0RJ1001D677 MCR03EZPJ102 1KOHM 5 1 10W R226 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 1 DATE 2006 07 10 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R227 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 1 R228 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 1 R229 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 1 R300 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W R301 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W R302 0RJ0000D677 M...

Page 33: ...7KOHM 5 1 1 R721 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 1 R728 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R729 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R730 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R732 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 DATE 2006 07 10 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R733 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R734 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R735 0RJ0000D677 M...

Page 34: ...2D622 MCR10EZHJ750 75OHM 5 1 8W R303 0RH4700D622 MCR10EZHJ471 470OHM 5 1 8W R304 0RH4700D622 MCR10EZHJ471 470OHM 5 1 8W R305 0RH0000D622 MCR10EZHJ000 0OHM 5 1 8W 2 R101 0RH9101D622 MCR10EZHJ912 9 1KOHM 5 1 8 R102 0RH3301D622 MCR10EZHJ332 3 3KOHM 5 1 8 R103 0RH1101D622 MCR10EZHJ112 1 1KOHM 5 1 8 R104 0RH0000D622 MCR10EZHJ000 0OHM 5 1 8W 2 R105 0RH9101D622 MCR10EZHJ912 9 1KOHM 5 1 8 R106 0RH3301D622...

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Page 38: ...Jul 2006 Printed in Korea P NO MFL30105534 ...

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