LG MU-50PM10 Service Manual Download Page 20 | Manualshive

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TROUBLE SHOOTING GUIDE

5-2. In case of does’t display the screen into specific mode

(1) Symptom

¯

The screen does not become the display from specific input mode

(AV, Component, RGB, DVI).

(2) Check follow

¯

Check the all input mode should become normality display.

¯

Check the Video(Main)/Data(Sub), Video(Main)/Video(Sub) should become

normality display from the PIP mode or DW mode. (Re-Check it Swap)

(3) Abnormal display in AV mode

Is IC400 (Switch)

Is the Video Decoder

Is normal the Input voltage, IIC

Communication and HV sync?

Are the Input voltage, IIC

Comm. and HV sync good?

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Summary of Contents for MU-50PM10

Page 1: ...L CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS RF 043E MODEL MU 50PM10 CANADA http biz lgservice com USA http www lgservice com http lgservice com techsup html h t t p w w w w j e l n e t ...

Page 2: ...AC switch in the on positioin 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 measured resistance should be between 1MΩ and 5 2MΩ When the exposed metal has no return path to the chassis the reading must ...

Page 3: ...ICATIONS 7 ADJUSTMENT INSTRUCTIONS 8 TROUBLE SHOOTING GUIDE 13 BLOCK DIAGRAM 24 EXPLODED VIEW 26 EXPLODED VIEW PARTS LIST 27 REPLACEMENT PARTS LIST 28 SCHEMATIC DIAGRAM PRINTED CIRCUIT BOARD TABLE OF CONTENTS h t t p w w w w j e l n e t ...

Page 4: ...F ON OFF 1 2 3 4 5 6 1 4 5 6 3 2 1 Main Power Button 2 Remote Control Sensor 3 Power Standby Indicator Illuminates red in standby mode Illuminates green when the Monitor is turned on 4 INPUT SELECT Button 5 MENU Displays on screen menus one by one Exits the current menu Memorizes menu changes 6 D D E E Selects a menu option F F G G Volume Up Down Increases decreases sound level Adjusts menu settin...

Page 5: ...T to another monitor s PC input port 5 COMPONENT INPUT AUDIO INPUT JACKS Connect a component video audio device to these jacks 6 S VIDEO INPUT SOCKETS Connect S Video out from an S VIDEO device to the S VIDEO input NOTE AUDIO INPUT of S VIDEO is worked by L mono 7 VIDEO AUDIO L MONO INPUT SOCKETS Connect audio video output from an external device to these jacks 8 EXTERNAL SPEAKER 8 ohm output Conn...

Page 6: ...picture on or off SWAP Exchanges main and sub picture images MENU Displays on screen menus one by one Exits the current menu NUMBER buttons VCR BUTTONS Control some video cassette recorders OK D D E E Selects menu option Memorizes menu changes F F G G Volume button Increases decreases sound level Adjusts menu settings INPUT SELECT Selects source RGB DVI Component Video or S Video mode DASP To sele...

Page 7: ...R G and B 32 104 F 0 40 C Less than 80 MU 50PM10 11 20 49 3 1253 29 3 745 3 9 99 5 84 7 38 4 1366 x 768 Dot Width inches mm Height inches mm Depth inches mm Weight pounds kg Resolution Power requirement Color Operating Temperature Range Operating Humidity Range 852 x 480 Dot MU 42PM11 20 MU 42PM12X AC100 240V 50 60Hz AC100 240V 60Hz SPECIFICATIONS h t t p w w w w j e l n e t ...

Page 8: ...rator in this mode Single color pattern RED BLUE GREEN of HEAT RUN mode can be used to check PANEL Caution If you turn on a still screen for more than 20 minutes Especially digital pattern cross hatch pattern an afterimage may occur in the black level part of the screen 3 Setting Up the LGIDS 1 Install the LGIDS idsinst exe After installation has completed check if the file shown in Fig 1 has been...

Page 9: ...1 If it is done correctly you will see Job is Success 2 Click on close 3 5 Check the Generation Data Confirmation it s possible within HDCP CreatedKeyFile 6 It is possible to check how many Generations are created at this point Fig 5 shows that you have created 130 Generations and you will start from 131 next time 4 3 HDCP Download Method 1 Input power of Stand By 5V Download must be executed only...

Page 10: ...n RV501 to adjust the Va voltage to match the value marked on the label on the right top of the panel Deviation 0 5V 2 Vs Adjustment 1 Connect terminal of D M M to Vs pin of P805 connect terminal to GND pin of P805 2 Turn RV401 to adjust the Vs voltage to match the value marked on the label on the right top of the panel Deviation 0 5V 6 DDC Data Input 6 1 Required Test Equipment 1 A jig for adjust...

Page 11: ...de by pressing power key on the Service Remote Control S R C then allow to heat run at least 15 minutes 2 Supply Window Pattern signal to DVI input using Pattern Generator 1 Input Signal XGA 60Hz 2 Input the Window Pattern Horizontal 25 Vertical 50 Top High 25 Bottom Low 25 Refer to Fig 11 3 Press the FRONT AV KEY on R C for converting input DVI mode 4 Press ADJ key twice on S R C White Balance 5 ...

Page 12: ... C 3 Press Vol KEY and operate To SET 4 Auto RGB OK means completed adjustment 10 Auto Adjustment Map RS 232C Fig 12 Auto RGB Component Color Balance Test Pattern Type Baud Rate 115200 Index R Gain G Gain B Gain R Offset G Offset B Offset Data bit 8 Cmd1 Cmd2 j a j b j c j d j e j f Stop bit 1 Parity NONE RF 043A Protocol Setting Data Min Value 00 00 00 00 00 00 00 00 00 00 00 00 Max Value 255 FF ...

Page 13: ...put 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 Module Coutput circuit Yes When remo...

Page 14: ... 14 TROUBLE SHOOTING GUIDE 1 2 3510V00182A Power Board Structure T502 Vs Trans T702 Va Trans T101 St by Trans T103 Low Voltage Trans 1 2 3 h t t p w w w w j e l n e t ...

Page 15: ... 15 TROUBLE SHOOTING GUIDE 1 3 3501V00180A Power Board Structure T221 Vs Trans T271 Va Trans T121 St by Trans T201 Low Voltage Trans 1 2 3 h t t p w w w w j e l n e t ...

Page 16: ...Cable connecting the Line Filter and Power Switch connected Connect Cable Yes No Is the Power Switch connected to Power Board Connect Cable Yes No Is Fuse F101 on Power Board good Replace Fuse Yes No Is the Power Board connected to 7P of VSC Board Connect Cable Yes No When ST BY 5V does not operate replace Power Board h t t p w w w w j e l n e t ...

Page 17: ...se Yes No Yes Yes Replace Z Board Is the Z Board good Is the output voltage good after removing P1 connector of Z B D Check Fuse FS1 FS2 on Z B D In case of open replace fuse Yes No Yes Is the X Board good Is the output voltage good after removing P1 2 3 4 6 7 connector of X B D If after removing P1 P2 P3 P4 the output voltage is normal Replace Right X B D If after removing P6 P7 the output voltag...

Page 18: ... No Yes Yes Replace Z Board Is the Z Board good Is the output voltage good after removing P1 connector of Z B D Check Fuse FS1 FS2 on Z B D In case of open replace fuse Yes No Yes Is the X Board good Is the output voltage good after removing P1 2 3 4 6 7 connector of X B D If after removing P1 P2 P3 P4 the output voltage is normal Replace Right X B D If after removing P6 P7 the output voltage is n...

Page 19: ...VSC Digital Board good Is the LVDS cable connected well Reset cable Yes No No Yes Operates the Thine IC IC1100 Replace Thine IC IC1100 No Is the Ctrl Board good Replace Ctrl B D No No Check IEP IC500 Replace IEP IC500 Yes No Check Scaler IC700 Replace VSC Digital B D Replace Scaler IC700 Yes Yes No Replace cable Yes h t t p w w w w j e l n e t ...

Page 20: ...uld become normality display Check the Video Main Data Sub Video Main Video Sub should become normality display from the PIP mode or DW mode Re Check it Swap 3 Abnormal display in AV mode Is IC400 Switch CXA2069Q good Yes Is the Video Decoder VPC3230 good Is normal the Input voltage IIC Communication and HV sync No Replace IC400 No Are the Input voltage IIC Comm and HV sync good No Replace IC No h...

Page 21: ...HV sync good No Replace IC No Yes Is Scaler good Are the Input voltage IIC Comm and HV sync good No Replace IC No Is normal the 74LS123 Yes Is IC401 CXA2101 good Are the Input voltage IIC Comm and HV sync good No Replace IC No Are the Input voltage IIC Comm and HV sync good No Replace IC401 No Yes Is normal the M52758 Are the Input voltage IIC Comm and HV sync good No Replace IC No Yes Is Scaler g...

Page 22: ...e the Input voltage IIC Comm and HV sync good No Replace IC No Is normal the M52758 Yes Is normal the Scaler Are the Input voltage IIC Comm and HV sync good No Replace IC No Is normal the Scaler Are the Input voltage IIC Comm and HV sync good No Replace IC No Are the Input voltage IIC Comm and HV sync good No Replace IC No Yes Is normal the Scaler Are the Input voltage IIC Comm and HV sync good No...

Page 23: ...e SPK cable connected well Reset cable No No Reset cable No Replace IC800 No Replace IC801 No Replace SPK cable Yes Yes Audio normal on RGB DVI Is the Flat cable connected well No No IC800 good Yes IC801 good Replace IC802 No IC802 good Replace VSC Analog B D Yes Yes Yes Audio normal on RF AV Component h t t p w w w w j e l n e t ...

Page 24: ... 24 BLOCK DIAGRAM h t t p w w w w j e l n e t ...

Page 25: ... 25 NOTES h t t p w w w w j e l n e t ...

Page 26: ... 26 EXPLODED VIEW 305 300 501 530 590 520 540 541 301 302 303 304 560 310 400 102 103 220 230 101 205 212 201 203 200 202 210 208 209 207 206 211 580 h t t p w w w w j e l n e t ...

Page 27: ...EMBLY DISPLAY XRCT ASSY 50X2A COF RESISTOR 220 4980V00C28A SUPPORTER MODULE EGI ASSY R 230 4980V00C29A SUPPORTER MODULE EGI ASSY L 300 3091V00724A CABINET ASSEMBLY 50PM10 NON RF04GA NON 301 4980V00C24A SUPPORTER FILTER EGI TOP ASSY 302 4980V00C27A SUPPORTER FILTER EGI SIDE L ASSY 303 4980V00C25A SUPPORTER FILTER EGI BOT ASSY 304 4980V00C26A SUPPORTER FILTER EGI SIDE R ASSY 305 5230V00017A FILTER M...

Page 28: ...NO DESCRIPTION IC100 IC1000 IC1001 IC1002 IC101 IC102 IC103 IC104 IC1100 IC1100 IC1101 IC1200 IC1201 IC1202 IC1300 IC1301 IC1302 IC1303 IC1304 IC1305 IC1306 IC1307 IC200 IC201 IC202 IC203 IC400 IC401 IC403 IC500 IC5001 IC5003 IC5004 IC5004 IC5005 IC5006 IC5007 IC600 IC600 IC601 IC601 IC602 IC700 IC701 IC702 IC800 0IMMRAL014B 0IMCRFA010A 0IPRPML001A 0IMCRSH001A 0IMMRAL014B 0IMCRTI003A 0IMCRTI021A 0...

Page 29: ... CHIP KDS226 SOT 23 CHIP KDS226 SOT 23 CHIP KDS226 SOT 23 CHIP KDS226 SOT 23 CHIP KDS226 SOT 23 CHIP KDS226 SOT 23 LOCA NO PART NO DESCRIPTION D1301 D1302 D1303 D1304 D1305 D1306 D131 D1501 D1503 D400 D5001 LD001 LD1000 LD1001 LD1002 LD1003 LD1100 LD1203 LD1204 LD1206 LD1207 ZD100 ZD101 ZD102 ZD103 ZD104 ZD105 ZD400 ZD401 ZD800 C002 C1002 C1006 C1016 C1017 C1018 C1020 C1022 C1027 C1031 C1037 C1042...

Page 30: ... MV 16V 20 220UF MV 16V 20 100UF MVG 16V M 47UF MVG 16V M 47UF MVG 16V M 47UF MVG 16V M LOCA NO PART NO DESCRIPTION C1391 C1400 C1402 C1404 C1410 C1415 C1425 C222 C223 C224 C230 C251 C254 C258 C261 C263 C272 C274 C301 C303 C316 C317 C334 C335 C400 C401 C402 C404 C406 C410 C423 C429 C435 C440 C442 C5007 C5009 C5016 C5017 C5018 C5019 C5023 C5025 C601 C608 C611 C612 C614 C626 C627 C632 0CE477SF6DC 0C...

Page 31: ... 16V 20 100UF MVG 16V M 100UF MVG 16V M 100UF MVG 16V M LOCA NO PART NO DESCRIPTION JK200 JK201 JK202 JK203 P101 P102 P200 P201 SP1 L1004 L1005 L1006 L1007 L1200 L1203 L1209 L1213 L803 L804 L805 L806 AR500 AR501 AR502 AR503 AR504 AR505 AR513 AR600 AR600 AR601 AR601 AR602 AR602 AR603 AR603 AR604 AR605 AR606 AR607 AR608 AR609 AR610 AR611 AR612 6612JH003CA 6612J00010A 6612VJH019C 6612VMV002A 380 068E...

Page 32: ...2 L1307 L1310 L1311 L1312 L1313 L1314 L1315 L1316 L1317 L1318 L1321 L1322 L1325 L1326 L1327 L1328 L1329 L1330 L1331 L1332 L1333 L1500 L200 L202 L203 L204 L205 L205 L206 L207 L208 L209 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6200JB8010L 6200JB8010L 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A ...

Page 33: ...MC MLB 201209 1000L N2 FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM501NT FILTER EMC BK2125 HS 750 FILTER EMC BK2125 HS 750 FILTER EMC BK2125 HS 750 FILTER EMC FBMH3216 HM501NT FILTER EMC FBMH3216 HM...

Page 34: ...P NO 3828VD0206A CANADA LG Electronics Canada Inc 550 Matheson Boulevard East Mississauga Ontario L4Z 4G3 USA LG Electronics Alabama Inc P O Box 240007 201 James Record Road Bldg 3 Huntsville AL 35824 h t t p w w w w j e l n e t ...

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Page 38: ...h t t p w w w w j e l n e t ...

Page 39: ...h t t p w w w w j e l n e t ...

Page 40: ...MAIN TOP TUNER TOP TUNER BOTTOM MAIN BOTTOM CONTROL TOP CONTROL BOTTOM POWER S W TOP POWER S W BOTTOM h t t p w w w w j e l n e t ...

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