LG 50PY2R Service Manual Download Page 2

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CONTENTS

SAFETY PRECAUTIONS ....................................................................................3

DESCRIPTION OF CONTROLS ..........................................................................4

SPECIFICATIONS ................................................................................................8

ADJUSTMENT INSTRUCTIONS .......................................................................10

TROUBLE SHOOTING GUIDE ..........................................................................15

BLOCK DIAGRAM .............................................................................................25

EXPLODED VIEW ..............................................................................................26

EXPLODED VIEW PARTS LIST ........................................................................27

REPLACEMENT PARTS LIST...........................................................................28

SCHEMATIC DIAGRAM.........................................................................................

PRINTED CIRCUIT BOARD ..................................................................................

Summary of Contents for 50PY2R

Page 1: ...V SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS MF 056B MODEL 50PY2R 50PY2R ZB website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ...ONS 3 DESCRIPTION OF CONTROLS 4 SPECIFICATIONS 8 ADJUSTMENT INSTRUCTIONS 10 TROUBLE SHOOTING GUIDE 15 BLOCK DIAGRAM 25 EXPLODED VIEW 26 EXPLODED VIEW PARTS LIST 27 REPLACEMENT PARTS LIST 28 SCHEMATIC DIAGRAM PRINTED CIRCUIT BOARD ...

Page 3: ... 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 in turn to each exposed metallic parts such as antenna terminals phone jacks etc If the exposed metallic part has a return path to the chassis the measur...

Page 4: ...n main and sub picture PIP INPUT Selects the input mode for the sub picture SIZE Adjusts the sub picture size POSITION Moves the sub picture to D D E E or F F G G direction INPUT Selects the TV AV1 AV2 S Video2 AV3 AV4 AV5 Component RGB or HDMI modes switches the set on from standby MODE Selects another device VCR BUTTONS Controls a video cassette recorder These buttons are used for X Studio For f...

Page 5: ...one by one Exits the current menu Memorizes menu changes 5 OK Accepts your selection or displays the current mode 6 D D E E Programme Up Down Selects a programme or a menu item Switches the set on from standby F F G G Volume Up Down Adjusts the volume Adjusts menu settings 7 INDEX Switches LED Display on or off 8 Power Indicator Illuminates red in standby mode illuminates green when the set is tur...

Page 6: ...nect DVD video outputs to Y PB PR of COMPONENT INPUT and audio outputs to Audio sockets of AUDIO INPUT AUDIO VIDEO IN SOCKETS AV4 Connect the audio video out sockets of external equipment to these sockets S VIDEO AUDIO IN SOCKETS Connect the S VIDEO out socket of an VCR to the S VIDEO socket Connect the audio out sockets of the VCR to the audio sockets as in AV4 5 VARIABLE AUDIO OUTPUT 6 EURO SCAR...

Page 7: ...securely in the holes on the bracket Install the wall brackets on the wall with bolts not supplied with the product as shown Match the height of the TV brackets or Eye Bolts and the wall brackets Check to be sure the brackets are tightened securely Secure the TV assembly to the wall with strong strings or wound wire cables not supplied with the product as shown AS mark LG TV Owner s Manual 1 5V 1 ...

Page 8: ... accordance with BOM 5 The receiver must be operated for about 20 minutes prior to the adjustment V Test Method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC specification EMC CE IEC V General Specification Module Specification Remark Safety IEC EN60065 EMI EN55013 EMS EN55020 Model Name 50P2YR ZB Market EU Remark PDP Maker NBK Mitsui LG Chemical LGE SPEC M...

Page 9: ...Wired Control 1EA Audio variable out 1EA No 1 2 3 4 5 6 7 8 9 10 11 12 13 Specification EU PAL B G I D K NTSC BAND PAL NTSC VHF UHF C1 C69 2 83 CATV S1 S47 1 71 Upper Heterodyne PAL SECAM NTSC PAL SECAM NTSC PAL SECAM NTSC Y Cb Cr Y Pb Pr RGB PC RGB DTV HDMI PC HDMI DTV PC Audio Component 1EA AV 2EA Remark 4 System PAL SECAM NTSC PAL60 5 System PAL SECAM NTSC PAL60 6 System PAL SECAM NTSC PAL60 L ...

Page 10: ...the screen 3 Channel memory 3 1 Setting up the LGIDS 1 Install the LGIDS idsinst exe 2 After installation restart your PC 3 Extract files zip to folder c LGIDS files 4 Start LGIDS 3 2 Channel memory Method 1 Select PDP and Hurricane on Model dialog And check your connection in Communication dialog If your connection is NG then set your PORT COM1 2 3 correctly 2 Connect RS 232C cable and turn on th...

Page 11: ... 2 Vs Adjustment 1 Connect terminal of D M M to Vs pin of P807 connect terminal to GND pin of P805 2 After turning RV401 voltage of D M M adjustment as same as Va voltage which on label of panel right top Deviation 0 5V 5 EDID The Extended Display Identification Data DDC Display Data Channel download 5 1 Required Test Equipment 1 Adjusting PC with S W for writing EDID Data S W EDID TESTER Ver 2 5 ...

Page 12: ...strument only for auto adjustment 4 AV Pattern Generator 7 2 Connecting diagram of equipment for measuring For Auto Adjustment W Auto adjustment Map RS 232C 7 3 Adjustment of White Balance O Operate the zero calibration of the CA 100 then stick sensor to PDP module surface when you adjust O For manual adjustment it is also possible by the following sequence 1 Select white pattern of heat run mode ...

Page 13: ...p 100 Color Bar signal into Component1 or Component2 2 Set the PSM to Standard mode in Picture menu 3 Press INSTART key on R C for adjustment 4 Press the G Vol key operate To set then it becomes automatically 5 Auto RGB OK means complete adjustment 9 Auto RGB Color Balance 9 1 Requirement O It is very import to use correct adjustment pattern like Fig11 Within the pattern color sequence should be a...

Page 14: ... Hex Red Gain 82 Red Offset 80 Green Gain 86 Green Offset 7D Blue Gain 7E Blue Offset 80 Reset G To Set Fig 12 Default Value on OSD Auto Color Balance HEX Auto RGB G To Set Source Cortez Red Offset1 22 Green Offset1 24 Blue Offset1 23 Red Offset2 45 Green Offset2 43 Blue Offset2 37 Red Gain 14 Green Gain 31 Blue Gain 11 Reset G To Set ...

Page 15: ...Doesn t the high tension output come out Doesn t the VSC signal Vs ON come out Yes Yes Does high tension output voltage Drop occur When the Y B D Module input connector is removed does output voltage drop occur When the Y Z B D Module input connector is remove does Power Board hightension output voltage Drop occur Yes No No 9 Check the Power Board Output high tension circuit Yes 10 Check the Z B D...

Page 16: ... 16 1 2 Sony Power Board Structure 1 2 3 T502 Vs Trans T702 Va Trans T101 St by Trans T103 Low Voltage Trans ...

Page 17: ... 17 1 3 Sanken LGIT Power Board Structure 1 2 3 T221 Vs Trans T271 Va Trans T121 St by Trans T201 Low Voltage Trans ...

Page 18: ...er and Power Board Cable connected Connect the Cable Yes No Is the Fuse F101 on Power Board normal Replace the Fuse Yes No Is the Power Board and 7P of VSC Board Cable connected Connect the Cable Yes No After the cable connect is remved to Power Board except the CN101 connection cable the AC voltage marking is authorized on manual When ST BY 5V is not operated replace Power Board ...

Page 19: ... normal after remove P5 P6 connector of Y B D Is the Fuse FS2 on Y B D normal In case of open is replace Yes No Yes Yes Replace Z Board Is the Z Board normal Is the output voltage normal after remove P1 connector of Z B D Is the Fuse FS1 FS2 on Z B D normal In case of open is replace Yes No Yes Is the X Board normal Is the output voltage normal after remove P1 2 3 4 5 connector of X B D After remo...

Page 20: ... Is the Fuse FS2 normal on Y B D In case of open is replace Yes No Yes Yes Replace Z Board Is the Z Board normal Is normal the output voltage after remove P1 connector of Z B D Is the Fuse FS1 FS2 normal on Z B D In case of open is replace Yes No Yes Is the X Board normal Is the output voltage normal after remove P1 2 3 4 5 connector of X B D After remove P1 P2 P3 output voltage normality Replace ...

Page 21: ...ed continuously becomes accomplished from module 2 Check following Is the LVDS cable normal Is the VSC Board normal Is the LVDS cable connected well Cable inserts well Yes No No Yes Does the FIL8532 IC IC800 Operates Replace FIL8532 IC IC800 No Is the Ctrl Board of Module normal Replace Ctrl B D No No Yes Replace VSC B D Replace the cable Yes ...

Page 22: ...he Tuner Cable connected well Cable inserts well Yes No No Yes Is the FIL8532 normal Replace the Tuner No Is the Input voltage IIC Communication and CVBS output normal Yes Is the Input voltage IIC Communication and HV sync normal No Replace the IC No Is the Input voltage IIC Communication and HV sync normal No Replace the IC No Is the CXA2069Q normal Yes Is the FIL8532 normal Is the Input voltage ...

Page 23: ...ollowing Is the SPK cable normal Is the SPK cable connected well Cable inserts well No No Replace IC400 No Replace IC401 No Replace SPK cable Yes Yes Is the RF AV Component RGB HDMI sound normal No Does IC400 Operates Does IC401 Operates Replace IC402 No Does IC402 Operates Replace VSC B D Yes Yes ...

Page 24: ... green Don t enter EPF mode Screen display but sound is not output 2 Check following Is the EPF cable normal Is the EPF cable connected well Cable inserts well No No Replace IEPF B D No Replace EPF cable Yes Yes Is the EPF B D normal No Replace VSC B D ...

Page 25: ... 25 BLOCK DIAGRAM WIRED ...

Page 26: ... 26 EXPLODED VIEW 501 560 520 502 400 401 430 402 121 123 305 303 306 307 309 308 122 551 550 120 530 531 601 600 580 200 202 203 204 205 206 201 208 207 101 102 240 103 101 250 300 302 301 ...

Page 27: ...Y FOR JERSEY 302 4811V00179A BRACKET ASSEMBLY SPEAKER GRILLE RIGHT 50PY20 AF04HA ASSY FOR JERSEY 303 4811V00178A BRACKET ASSEMBLY GRILLE FRONT 50PY20 AF04HA ASSY FOR JERSEY 305 5230V00017B FILTER MECH 50PX5D UB LGM50 03 MITSUI 50 CLASS B GLASS FILTER 306 4980V01176B SUPPORTER ASSY AL FILTER TOP 50PY2R ZB C SKD 307 4980V01177B SUPPORTER ASSY AL FILTER BOTTOM 50PY2D ZB C SKD 308 4980V01178B SUPPORTE...

Page 28: ...400BA 0TR387500AA 0TR387500AA 0TR150400BA 0TR150400BA 0TR387500AA 0TR150400BA 0TR150400BA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR150400BA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR102008AA 0TR387500AA 0TR102008AA 0TR387500AA 0TR387500AA 0TR387500AA 0TFON80009A 0TFON80009A 0TFON80004C 0TFON80009A BSS83 PHILIPS N CHANNEL S W TR BSS83 PHILIPS N CHANNEL S W...

Page 29: ...C1118 C1119 C112 C1120 C1126 C113 C113 C1135 C1136 0CE476WF6DC 0CK104CF56A 0CE107SF6DC 0CE476WF6DC 0CE477WF6DC 0CE476WF6DC 0CK104CF56A 0CE477WF6DC 0CE477WF6DC 0CK104CF56A 0CE476WF6DC 0CE476SF6DC 0CE476SF6DC 0CE476SF6DC 0CE476SF6DC 0CE476SF6DC 0CK104CF56A 0CE107SF6DC 0CE477WF6DC 0CE477WF6DC 0CK105DF64A 0CK104CF56A 0CE227SF6DC 0CE476SF6DC 0CE476SF6DC 0CE476SF6DC 0CE476SF6DC 0CE477WF6DC 0CK104CF56A 0...

Page 30: ... 20 SMD R TP 100UF MVK 16V 20 R TP SMD SMD LOCA NO PART NO DESCRIPTION C1313 C1314 C1315 C1316 C1317 C1318 C1333 C1334 C1335 C1338 C135 C1410 C1411 C142 C143 C172 C173 C174 C175 C176 C177 C178 C179 C184 C185 C192 C193 C196 C201 C202 C203 C203 C204 C204 C205 C206 C207 C208 C208 C209 C210 C211 C214 C215 C221 C238 C241 C300 C301 C302 C303 C304 0CE107WF6DC 0CE107WF6DC 0CE107WF6DC 0CE476SF6DC 0CE476SF6...

Page 31: ... X7R 100UF MVG 16V 20 SMD R TP LOCA NO PART NO DESCRIPTION C511 C512 C513 C514 C515 C516 C517 C518 C518 C519 C520 C520 C521 C522 C522 C523 C524 C525 C526 C527 C527 C528 C529 C530 C531 C532 C533 C534 C610 C614 C615 C620 C621 C622 C625 C728 C729 C730 C731 C735 C737 C739 C745 C750 C752 C760 C762 C764 C767 C771 C828 C832 0CE476SF6DC 0CK104CF56A 0CK104CF56A 0CE105VK6DC 0CK104CF56A 0CE105VK6DC 0CK104CF5...

Page 32: ...16V 20 R TP SMD SMD LOCA NO PART NO DESCRIPTION L1000 L105 L106 L107 L108 L109 L110 L1101 L1102 L1103 L1104 L111 L112 L1124 L503 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 CARD301 CARD302 CD301 CD302 JK500 JK601 P100 P101 P102 P103 P104 P105 P106 P106 P1100 P1300 P1302 P1303 P400 P401 P401 6140VB0004B 6140VB0032A 6140VB0032A 6140VB0032A 6140VB0032A 6140VB0032A 6140VB0032A 6140VB0004B 6140VB0004B 6140V...

Page 33: ...L1111 L1112 L1113 L1115 L1116 L1117 L1118 L1119 L1120 L1121 L1122 L1123 L1125 L1126 L1127 6200J000013 6210VC0006A 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6210VC0006A 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6210VC0006...

Page 34: ...MLB 321611 0500P N2 R 500 OHM BEAD MLB 321611 0500P N2 R 500 OHM BEAD MLB 321611 0500P N2 R 500 OHM BEAD MLB 321611 0500P N2 R 500 OHM BEAD STC222D NIIGATA 50VOLT 4A 2200PF MLB 201209 1000L N2 R 1000OHM 350MA STC222D NIIGATA 50VOLT 4A 2200PF MLB 201209 1000L N2 R 1000OHM 350MA MLB 321611 0500P N2 R 500 OHM BEAD MLB 321611 0500P N2 R 500 OHM BEAD MLB 321611 0500P N2 R 500 OHM BEAD MLB 321611 0500P ...

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Page 38: ...PRINTED CIRCUIT BOARD MAIN TOP MAIN BOTTOM EPF TOP EPF BOTTOM CONTROL SIDE A V SPEAKER TOP SPEAKER BOTTOM ...

Page 39: ...Aug 2005 Printed in Korea P NO 3828VD0209W ...

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