LG RZ-50PX10, Service Manual

Page 1: ...A TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS RF 043B MODEL RZ 50PX10 website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ...NS 3 DESCRIPTION OF CONTROLS 4 SPECIFICATIONS 13 ADJUSTMENT INSTRUCTIONS 15 TROUBLE SHOOTING GUIDE 20 BLOCK DIAGRAM 31 EXPLODED VIEW 34 EXPLODED VIEW PARTS LIST 35 REPLACEMENT PARTS LIST 36 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: ...by one Exits the current menu Memorizes menu changes SWAP Returns to the previously viewed programme Note This function works only when Favorite programme is set to Off Otherwise each press of this button will select a stored favorite pro gramme SSM To select the sound appropriate to your viewing programme character NUMBER buttons SLEEP Sets the sleep timer I II Selects the language during dual la...

Page 5: ...ts the TV AV Component RGB or DVI modes If OSD is dis played selects menu item MENU Displays on screen menus one by one Exits the current menu Memorizes menu changes 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 Power Standby Indicator Illuminates red in standby mode Illuminates green wh...

Page 6: ...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 sock ets as in AV4 5 ANTENNA INPUT 6 EURO SCART SOCKET Connect the euro scart s...

Page 7: ...ro scart socket of the set Use the orbiter function to Avoid having a fixed image remain on the screen for a long period of time Typically a frozen still pic ture from a VCR Refer to p 25 If a 4 3 picture format is used the fixed image may remain visible on the screen To avoid picture noise interference leave an adequate distance between the VCR and set Watching TV programmes Turn the set on and s...

Page 8: ...al AV source When connecting the set to an external source match the colours of AUDIO VIDEO input jacks on the set with the output jacks on the audio video equipment Video yellow Audio Left white Audio Right red Or connect the Euro scart socket of the VCR to the Euro scart socket of the set How to use 1 Use the TV AV button on the remote control to select AV1 AV2 AV3 AV4 or AV5 2 Operate the corre...

Page 9: ...ent Refer to the DVD player s manual for operating instructions Component Input ports You can get better picture quality if you connect DVD player with component input ports as below Component ports of the set Y PB PR Video output ports of DVD player Y Y Y Y Pb B Y Cb PB Pr R Y Cr PR Antenna OTE ROL RS 232C INPUT DVI INPUT CONTROL SERVICE AUDIO INPUT RGB INPUT Y PB PR L R L MONO R COMPONENT S VIDE...

Page 10: ...e signal cable from the DVI out put port of the PC to the DVI INPUT port on the set Connect the audio cable from the PC to the Audio input on the set Audio cables are not included with the set If using a sound card adjust PC sound as required This set apply a VESA Plug and Play Solution The set provides EDID data to the PC system with a DDC protocol The PC adjusts automatically to use this set DDC...

Page 11: ...56 37 879 48 077 46 875 53 674 49 725 48 363 56 476 60 023 68 677 47 700 59 625 47 700 59 625 54 348 63 995 67 500 77 487 68 681 47 693 60 091 68 504 60 023 63 981 RGB DVI mode Resolution 640x350 720x400 640x480 848x480 800x600 Horizontal Frequency KHz Vertical Frequency Hz 852x480 832x624 1024x768 1360x768 1366x768 1152x864 1152x870 1280x960 1280x768 1280x1024 70 09 85 08 70 08 85 03 59 94 66 66 ...

Page 12: ...ting bracket 40 42 50 40 42 50 Video cables Audio cables Ceiling mounting bracket 40 42 50 42 40 Secure the TV assembly by joinning it to a wall by using the TV Wall brackets Joinning the TV assembly to the wall to protect the set tumbling After the set must be mounted on s desk top install the TV brackets on the TV as shown Insert the 2 bolts and tighten securely in the upper holes on the bracket...

Page 13: ...ceiver must be operated for about 20 minutes prior to the adjustment V Test and Inspection Method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC specification EMC CE IEC V General Specification 1 General Specification 50 XGA MODULE Remark PDP Maker NBK Mitsui LG Chemical LGE SPEC Maker SONY Sanken Specification 50 inch wide Color Display Module 16 9 PDP50X2x...

Page 14: ...n EU PAL BG I DK SECAM L L Upper Heterodyne PAL SECAM PAL SECAM NTSC PAL SECAM NTSC Y Cb Cr Y Pb Pr RGB PC DVI PC PC Audio Component AV 1EA Discrete IR No 8 9 10 11 12 13 14 15 16 17 18 Item Market Broadcasting system Receiving system Scart Jack 3EA Video Input 2EA S Video Input 2EA Component Input 2EA RGB Input DVI Input Audio Input 4EA Wired Control ...

Page 15: ...DS 1 Install the LGIDS idsinst exe After installation is completed check if the file shown on Fig 1 has been created After using the right mouse button to click on LGIDS 2 select Create Shortcut from the menu with the left mouse button and move the shortcut icon onto the desktop 3 Double click on the LGIDS icon on the desktop to execute the program 3 2 Channel memory Method 1 Check if Malibu has b...

Page 16: ...Y Generation 1 Click on Key Generation G 2 Input the number of the key in Generation count ex If 100 Keys are required then just register 100 and next time it will automatically get 101 3 Input file When installing the program for the first time you must find the original KEY that you copied and open it It is crucial that you copy the original KEY into this directory When you use Generation the in...

Page 17: ...am for Measuring Refer to Fig 11 5 3 Adjustment Method for P No 3501V00187A 50 SANKEN B D 1 Va Adjustment 1 After receiving 100 Full White Pattern HEAT RUN 2 Connect terminal of D M M to Va pin of P805 connect terminal to GND pin of P805 3 After turning RV501 voltage of D M M adjustment as same as Va voltage which on lable of panel right top Deviation 0 5V 2 Vs Adjustment 1 Connect terminal of D M...

Page 18: ... for writing DDC EDID data Write Read into operation operated in DOS mode 6 4 Sequence of Adjustment 1 DDC Data Input for Analog RGB 1 Put the set on the table and turn the power on 2 Connect PC Serial to D sub 15P Cable of jig for DDC adjustment to RGB terminal D Sub 15Pin 3 Operate S W for DDC record and select DDC data for Analog RGB in Model Menu 4 Operate EDID Write command 5 Operate EDID Rea...

Page 19: ...ce 8 1 Required Test Equipment Pattern Equipment MSP3240A or same product 16 Gray Scale Pattern output Component output Level 0 7Vp p 8 2 Method of Auto RGB Color Balance 1 Input RGB Source Component 480p 576p 16 Gray Scale Pattern At this time except Pb and Pr signal only Y signal insert 2 Press ADJ KEY on R C for adjustment 3 Press Vol KEY and operate To set 4 Auto RGB OK means completed adjustm...

Page 20: ...signal Doesn t the high tension output come out Doesn t the VSC signal Vs ON come out Yes Yes High tension output voltage Drop it occurs When remove the Y B D Module Input Connector output voltage Drop it occurs When remove the Y Z B D Module Input Connector Power Board high tension output voltage Drop it occurs Yes No No 9 Check the Power Board Output high tension circuit Yes 10 Check the Z B D M...

Page 21: ... 21 1 2 Sony Power Board Structure T502 Vs Trans T702 Va Trans T101 St by Trans T103 Low Voltage Trans 1 2 3 ...

Page 22: ... 22 1 3 Sanken Power Board Structure T221 Vs Trans T271 Va Trans T121 St by Trans T201 Low Voltage Trans 1 2 3 ...

Page 23: ...ect the Power Switch and Power Board Cable Connect Cable Yes No Is normal the Fuse F101 on Power Board Replace Fuse Yes No Is connect the Power Board and 7P of VSC Board Cable Connect Cable Yes No Is connect the Power Switch and Power Board Cable After remove the cable connect to Power Board except the CN101 connection cable authorizes the AC voltage marking on manual When ST BY 5V does not operat...

Page 24: ...nnector of Y B D Is normal the Fuse F52 on Y B D In case of open is replace Yes No Yes Yes Replace Z Board Is normal the Z Board Is normal the output voltage after remove P1 connector of Z B D Is normal the Fuse FS1 FS2 on Z B D In case of open is replace Yes No Yes Is normal the X Board Is normal the output voltage after remove P1 2 3 4 6 7 connector of X B D After remove P1 P2 P3 P4 output volta...

Page 25: ...Y B D In case of open is replace Yes No Yes Yes Replace Z Board Is normal the Z Board Is normal the output voltage after remove P1 connector of Z B D Is normal the Fuse FS1 FS2 on Z B D In case of open is replace Yes No Yes Is normal the X Board Is normal the output voltage after remove P1 2 3 4 6 7 connector of X B D After remove P1 P2 P3 P4 output voltage normality Replace Right X B D After remo...

Page 26: ...m module 2 Check follow Is normal the LVDS cable Is normal the VSC Digital Board Is the LVDS cable connected well Cable inserts well Yes No No Yes Operates the Thine IC IC1100 Replace Thine IC IC1100 No Is normal the Ctrl Board of Module Replace Ctrl B D No No Operates the IEP IC500 Replace IEP IC500 Yes No Operates the Scaler IC700 Replace Scaler IC700 Yes Replace cable Yes ...

Page 27: ...n the case of becomes unusual display from RF AV mode Is normal the Tuner Is normal the CXA2069Q Is the Tuner Cable connected well Cable inserts well Yes No No Yes Is normal the VPC3230 Replace Tuner No Is normal the Input voltage IIC Communication and CVBS output Yes Is normal the Input voltage IIC Communication and HV sync No Replace IC No Is normal the Input voltage IIC Communication and HV syn...

Page 28: ...ync No Replace IC No Yes Is normal the Scaler Is normal the Input voltage IIC Communication and HV sync No Replace IC No Is normal the 74LS123 Yes Is normal the CXA2101 Is normal the Input voltage IIC Communication and HV sync No Replace IC No Is normal the Input voltage IIC Communication and HV sync No Replace IC No Yes Is normal the M52758 Is normal the Input voltage IIC Communication and HV syn...

Page 29: ...No Replace IC No Is normal the Input voltage IIC Communication and HV sync No Replace IC No Is normal the M52758 Yes Is normal the Scaler Is normal the Input voltage IIC Communication and HV sync No Replace IC No Is normal the Scaler Is normal the Input voltage IIC Communication and HV sync No Replace IC No Is normal the Input voltage IIC Communication and HV sync No Replace IC No Yes Is normal th...

Page 30: ...ble connected well Cable inserts well No No Cable inserts well No Replace IC800 No Replace IC801 No Replace SPK cable Yes Yes Is normal the RGB DVI sound Is the Flat cable connected well No No Operates the IC800 Yes Operates the IC801 Replace IC802 No Operates the IC802 Replace VSC Analog B D Yes Yes Yes Is normal the RF AV Component sound ...

Page 31: ...Cb Cr 8 HY57V64322 SDRAM 8MB RGB PC DTV RGB PC RGB DTV g m 1601 Sc aler Malib u Comp DTV CXA_RGB RGB_Dat a Main_Vid eo 24 Sub _Vid eo 8 DVI_Dat a TX_Out RS232_RX TX Co mp RGB_SW Fro m Malib u Dig it al Analo g Sid e AV CVBS S VHS Vin5 YCin5 Co mp _Y Co mp _480I P To Malib u Vid eo f o r Text Text TX0 1 2 3 C Disp _En SDATA SCLK SLE HY5DU283222A SDRAM 128MB AM29LV F ROM 1MB Co mp RGB_SW Co mp _480I...

Page 32: ...FP I2C Exp end er M62320FP I2C Exp end er CXA2069Q UPD64083 UPD64083 VPC3230 MAIN VPC3230 MAIN VPC3230 SUB VPC3230 SUB DVD_SUB DTV_Co mp M52758FP IC400 MUX M52758FP IC400 MUX DVD_MAIN DVD2_MAIN DVD2_SUB DTV2_Co mp S VHS Tuner M Tuner S VIN1 Y CIN1 Co mp Co mp 2 MNT_OUT VIN2 Y CIN2 MAIN_VOUT SUB_COUT SUB_YOUT CAB_VIN MAIN_YOUT MAIN_COUT LA7151M SW CVBS Y COMB_YOUT COMB_COUT ALT_Y_480I_MAIN ALT_Y_48...

Page 33: ...MEMO 33 ...

Page 34: ... 34 EXPLODED VIEW 201 212 205 210 208 207 206 211 200 551 550 102 103 101 580 215 214 400 203 202 209 300 305 301 304 302 124 120 121 122 123 520 501 530 560 541 401 540 430 600 303 ...

Page 35: ...V_TOP 211 6871QRH042C 6871QRH042C PWB PCB ASSEMBLY DISPLAY XRRB ASSY HAND INSERT 50X2A COF RESISTOR 212 6871QXH024C 6871QXH024C PWB PCB ASSEMBLY DISPLAY XRCT ASSY HAND INSERT 50X2A COF RESISTOR 214 4980V00A53D 4980V00A53B SUPPORTER ASSY AL 50PX10 215 4980V00B46C 4980V00B46D SUPPORTER ASSY AL SUPP MODULE VER LEFT 50PX10 300 3091V00671F 3091V00671B CABINET ASSEMBLY RZ 50PX10 RF043B 301 4980V01112B 4...

Page 36: ...AA 0TR150400BA 0TR104009AF 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA HY5DU283222AQ 5 HYNIX 100P LQFP NSP 6241B NEOFIDELITY 64P TQFP MX29LV800TTC 70 MACRONIX 48PIN TSOP TAS5122DCAR 56P TSSOP R TP 30W NJU26901E2 JRC 8P EMP KIA7042AF SOT 89 TP 4 2V VOLTAGE C184 CHI...

Page 37: ...LD1204 LD1206 LD1207 ZD100 ZD101 ZD102 ZD103 ZD104 ZD105 ZD206 ZD207 ZD208 ZD400 ZD401 ZD800 C002 C1001 C1002 C1004 C1006 C1016 C1017 C1018 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD184009AA 0DD226239AA 0DD100009AM 0DD226239AA 0DD226239AA 0DD226239AA 0DL20000...

Page 38: ... 50V 20 SMD R TP LOCA NO PART NO DESCRIPTION C1273 C1274 C1275 C1279 C1305 C1314 C1315 C1317 C1331 C1333 C1353 C1355 C1362 C1366 C1368 C1373 C1374 C1384 C1388 C1391 C1400 C1402 C1404 C1410 C1415 C1425 C208 C220 C222 C223 C224 C224 C225 C226 C227 C230 C251 C254 C258 C261 C263 C272 C274 C276 C288 C289 C301 C302 C304 C316 C317 C318 0CE476SF6DC 0CE107SF6DC 0CE107SF6DC 0CE107SF6DC 0CE107SF6DC 0CE476SF6...

Page 39: ...F MVG 16V 20 R TP SMD SMD 100UF MVG 16V M SMD R TP LOCA NO PART NO DESCRIPTION C629 C632 C702 C703 C709 C712 C720 C723 C726 C737 C744 C752 C757 C762 C769 C777 C778 C785 C800 C801 C802 C803 C812 C822 C825 C827 C828 C829 C834 C837 C840 C841 C847 C851 C852 C862 C863 C872 C873 C874 L1004 L1005 L1006 L1007 L1200 L1203 L1209 L1213 L803 L804 0CE106SF6DC 0CE107SF6DC 0CE107SF6DC 0CE226SF6DC 0CE106SF6DC 0CE...

Page 40: ...17 L1300 L1302 L1303 0RKZVTA001L 0RKZVTA001L 140 315A 140 315A 140 315A 140 315A 140 315A 140 315A 140 313B 6600VM2006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210...

Page 41: ...3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP BK2125 HS 750 2X1 25X0 85MM R TP BK2125 HS 750 2X1 25X0 85MM R TP BK2125 HS 750 2X1 25X0 85MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP MLB 201209 1000L N2 R TP 1000OHM 350MA LOCA NO PART NO DESCRIPTION L310 L311 L312 L313 L314 L400 L400 L401 L401 L402 L403 L404 L405 L406 L407 L408 L500 L5001 L501 L502 L503 L...

Page 42: ...126R REMOTE CONTROLLER RF043B PIP POWER CORD M2511A 001 VDE SEMKO 2800MM CABLE DVI LVDS UL20276 AWG30 500MM CABLE COAXIAL UL1365 26 150MM UCA EX 069 BRACKET WALL AP 60DA10 FUSE SLOW BLOW 10000MA 250 V 5 2X20 CONNECTOR CIRC D SUB 68114 1521 15PIN CONNECTOR CIRC D SUB 69107 0921 9P REMOTE CONTROLLER RECEIVER KSM 603SM12E 1 CABLE COAXIAL 150MM UL1365 26 VW 1 TUNER TAUM W501P MINI 4 SYSTEM MAIN TUNER ...

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Page 48: ...PRINTED CIRCUIT BOARD MAIN TOP POWER S W TOP SIDE A V TOP SIDE A V BOTTOM CONTROL TOP CONTROL BOTTOM POWER S W BOTTOM MAIN BOTTOM FAN CONTROL TOP FAN CONTROL BOTTOM TUNER TOP TUNER BOTTOM ...

Page 49: ...Nov 2004 Printed in Korea P NO 3828VD0161G ...