LG MU-42PM11 Service Manual Download Page 19 | Manualshive

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TROUBLE SHOOTING GUIDE

5. Abnormal Display

5-1. No OSD

(1) Symptom

¯

LED is green

¯

No OnScreen Display

(2) Check follow

Check the LVDS

cable?

Is the 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

All manuals and user guides at all-guides.com

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Summary of Contents for MU-42PM11

Page 1: ...THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS RF 043E MODEL MU 42PM11 MU 42PM12X CANADA http biz lgservice com USA http www lgservice com http lgservice com techsup html All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 2: ... 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 be infini...

Page 3: ...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 All manuals and user guides at all guides com ...

Page 4: ...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 settings DESCRI...

Page 5: ...her 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 Connect to op...

Page 6: ...P 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 select the sound appropri...

Page 7: ... 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 All manuals and user guides at all guides com ...

Page 8: ... 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 created 2 Ri...

Page 9: ...s 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 when it ...

Page 10: ...o 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 adjusting PC DD...

Page 11: ...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 High Adjustment Stick...

Page 12: ...s 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 255 FF 25...

Page 13: ...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 remove the Z ...

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 All manuals and user guides at all guides com ...

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 All manuals and user guides at all guides com ...

Page 16: ...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 All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 17: ... 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 norm...

Page 18: ...es 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 normal Rep...

Page 19: ...al 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 All manuals and user guides at all guides com ...

Page 20: ...e 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 All manual...

Page 21: ...ce 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 good Are the Input vol...

Page 22: ...ut 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 Replace ...

Page 23: ...le 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 All manuals and user guides at all guides com ...

Page 24: ... 24 BLOCK DIAGRAM All manuals and user guides at all guides com ...

Page 25: ... 25 NOTES All manuals and user guides at all guides com ...

Page 26: ...6 EXPLODED VIEW MU 42PM11 305 300 202 203 206 207 200 204 201 205 580 501 530 590 520 540 541 301 303 560 310 210 400 103 104 101 102 All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 27: ...980V00C62A SUPPORTER ASSY ZDC SUPP MODULE VERTICAL 300 3091V00731C CABINET ASSEMBLY 42PM12X NON RF043A 2TONE 301 4980V00C59A SUPPORTER ASSY EGI SUPP FILTER TOP 303 4980V00C61A SUPPORTER ASSY EGI SUPP FILTER RIGHT 305 3790V00709B FILTER MECH LGM42 01 MITSUI 42 ETCHING MESH GLASS FILTER 310 5020V01004A BUTTON CONTROL 50PM10 NON 6KEY NON 400 3809V00504A BACK COVER ASSEMBLY 501 3301V00043C PLATE ASSEM...

Page 28: ... 28 EXPLODED VIEW MU 42PM12X 305 300 200 501 530 590 520 540 541 301 303 560 310 210 400 101 101 103 102 580 204 207 201 205 206 202 203 All manuals and user guides at all guides com ...

Page 29: ...P MODULE VERTICAL 300 3091V00731G CABINET ASSEMBLY 42PM12X NON RF043A 2TONE 301 4980V00C59C SUPPORTER ASSY EGI SUPP FILTER TOP 303 4980V00C61D SUPPORTER ASSY EGI SUPP FILTER RIGHT 305 3790V00709B FILTER MECH LGM42 01 MITSUI 42 ETCHING MESH GLASS FILTER 310 5020V01004A BUTTON CONTROL 50PM10 NON 6KEY NON 400 3809V00504A BACK COVER ASSEMBLY 501 3301V00043G PLATE ASSEMBLY 3301V00042B PLATE VSC ASSY MU...

Page 30: ...1001 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 0IMCRTI021A 0IMMRNE002A 0IMCRTH...

Page 31: ... 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 C1045 C1058 C10...

Page 32: ...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 C5023 C5025 C601 C608 C611 C612 C614 C626 C627 C632 C634 0CE477SF6DC 0CE476SF6DC...

Page 33: ...G 16V M 100UF MVG 16V M LOCA NO PART NO DESCRIPTION C9014 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 0CE107SF6DC 6612JH003CA 6612J00010A 6612VJH019C 6612VMV002A 380 068E 6612BBBHN6A 380 363...

Page 34: ...1310 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 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6200JB8010L 6200JB8010L 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 6210VC0006A 62...

Page 35: ...00L N2 FILTER EMC 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 ...

Page 36: ...DA 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 All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 37: ...All manuals and user guides at all guides com ...

Page 38: ...All manuals and user guides at all guides com ...

Page 39: ...All manuals and user guides at all guides com ...

Page 40: ...All manuals and user guides at all guides com ...

Page 41: ...All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 42: ...MAIN TOP TUNER TOP TUNER BOTTOM MAIN BOTTOM CONTROL TOP CONTROL BOTTOM POWER S W TOP POWER S W BOTTOM All manuals and user guides at all guides com ...

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