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LG 42PM1M/MA, Service Manual

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LG 42PM1M/MA Service Manual Download Page 18

- 18 -

2. No Power

(1) Symptom

Ø

Does’t minute discharge at module. 

Ø

Non does not come in into the front LED. 

(2) Check following

Is plug in power cord?

Plug in power cord.

Yes

No

Is the Line Filter 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 removed
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.

Summary of Contents for 42PM1M/MA

Page 1: ... SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS RF 052A MODEL 42PM1M MA 42PM1M MA ZA website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ...S 3 DESCRIPTION OF CONTROLS 4 SPECIFICATIONS 8 ADJUSTMENT INSTRUCTIONS 10 TROUBLE SHOOTING GUIDE 15 PRINTED CIRCUIT BOARD 24 BLOCK DIAGRAM 26 EXPLODED VIEW 28 EXPLODED VIEW PARTS LIST 29 REPLACEMENT PARTS LIST 30 SCHEMATIC DIAGRAM ...

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: ...broadcast selects the sound output TEXT option These buttons are used for teletext For further details see the Teletext section COLOURED BUTTONS These buttons are used for teletext LIST option displays the programme table INPUT MUTE switches the sound on or off D D E E Selects a menu option F F G G Volume Up Down Increases decreases sound level Adjusts menu settings OK accepts your selection or di...

Page 5: ...icator Illuminates red in standby mode Illuminates green when the set 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 1 2 3 4 5 6 1 4 5 6 3 2 ...

Page 6: ...PUT CONTROL SERVICE REMOTE CONTROL S VIDEO Y PB PR VIDEO R L VARIABLE AUDIO OUT AUDIO R L EXTERNAL SPEAKER HDMI DVI VIDEO R L AUDIO R L AUDIO R L AUDIO VIDEO COMPONENTINPUT2 COMPONENTINPUT1 MONITOR OUPUT A V INPUT MONO MONO Connection to PC Connection to AV equipment ...

Page 7: ...UPDATE TIME Q VIEW HOLD INDEX i I II TEXT LIST Remote Control handset Optional extras can be changed or modified for quality improvement without any notification new optional extras can be added Contract your dealer for buying these items Optional Extras Tilt wall mounting bracket 40 42 50 40 42 50 Video cables Audio cables Ceiling mounting bracket 40 42 50 42 40 Desktop stand Speakers ...

Page 8: ...each parts are followed each drawing and specification by part number in 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 IEC60065 EMI CISPR13 V General Specification 1 Module Specification Remark PDP LGE SPEC Maker SONY LGIT Sanken Specification 42 inch wid...

Page 9: ...ification EU PAL B G I D K SECAM L L BAND PAL NTSC VHF E2 E12 2 13 UHF E21 E69 14 69 CATV S1 S20 1 125 HYPER S1 S41 Upper Heterodyne PAL SECAM NTSC PAL SECAM PAL SECAM NTSC Y Cb Cr Y Pb Pr RGB PC RGB DTV RGB PC RGB DTV HDMI PC HDMI DTV PC Audio Component 1EA AV 1EA PC Audio Variable Audio out 1EA External audio out 1EA Discrete IR Remark Except 42PM1MB 50PM1MB 42PM3MVB Except 42PM1MB 50PM1MB 42PM3...

Page 10: ...pecially digital pattern cross hatch pattern after image may be occur in the black level part of 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 y...

Page 11: ... for writing EDID Data S W EDID TESTER Ver 2 5 2 A Jig for EDID Download 3 Cable Serial 9Pin or USB to D sub 15Pin cable D sub 15Pin cable DVI to HDMI cable 5 2 Setting of device 5 3 Preparation for Adjustment 1 As above Fig 5 Connect the Set EDID Download Jig PC Cable 2 Turn on the PC EDID Download Jig And Execute the S W EDID TESTER Ver 2 5 3 Set up S W option Repeat Number 5 Device Address A0 P...

Page 12: ...tment Map RS 232C 7 3 Adjustment of White Balance For Manual adjustment 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 by pressing power on key on remote control for adjustment then operate heat run more than 15 minutes 2 As below Fig 8...

Page 13: ...tandard 0 7Vpp Vertical 100 Color Bar Pattern as Fig 9 8 2 Method of auto component color balance 1 Input the Component 720p 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 Req...

Page 14: ...t 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 014 Green Gain 031 Blue Gain 011 Reset G To Set White Balance Hex Red Gain 82 Red Offset 80 Green Gain 86 Green Offset 7D Blue Gain 7E Blue Offset 80 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 high tension output voltage Drop occur Yes No No 9 Check the Power Board Output high tension circuit Yes 10 Check the Z B ...

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: ...lter 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 removed 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: ...age 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 r...

Page 20: ... D 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 Replac...

Page 21: ...rged 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: ...s the 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 normal the Input voltage IIC Communication and HV sync No Replace the IC No Is the CXA2069Q normal Yes Is the FIL8532 normal Is the Input volta...

Page 23: ... following 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: ...PRINTED CIRCUIT BOARD 24 MAIN TOP MAIN BOTTOM ...

Page 25: ... 25 RCA TOP RCA BOTTOM CONTROL POWER SWITCH ...

Page 26: ... 26 BLOCK DIAGRAM Cable RCA Block Diagram ...

Page 27: ... 27 Scart Block Diagram Cable ...

Page 28: ... 28 EXPLODED VIEW 305 310 530 300 202 205 206 200 203 201 204 580 501 520 540 541 301 302 304 303 103 104 560 561 400 410 102 101 ...

Page 29: ... 302 4980V00C59F SUPPORTER ASSY AL SUPP FILTER BOT APPLY 42PM10 AL SKD 303 4980V00C61L SUPPORTER ASSY AL SUPP FILTER LEFT APLLY TO 42PM10 AL SKD 304 4980V00C61J SUPPORTER ASSY AL SUPP FILTER RIGHT APLLY TO 42PM10 SKD 305 3790V00709C FILTER MECH RT 42PX10 LGM42 09 MITSUI 42 ETCHING MESH GLASS FILTER 310 5020V01004C BUTTON CONTROL 42PM10 6KEY 400 3809V00504B BACK COVER ASSEMBLY MZ 42PM10 C SKD 410 4...

Page 30: ...39AA 0DD226239AA 0DD226239AA 0DD200009AF 0DD200009AF 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DD184009AA 0DS113379BA 0DD226239AA 0DD226239AA 0DD226239AA 0DD226239AA 0DR050008AA 0DR050008AA 0DR050008AA 0DD100009AM CHIP 2SC3875S ALY BK KEC CHIP 2SC3875S ALY BK KEC CHIP 2SC3875S ALY BK KEC CHIP 2SC3875S ALY BK KEC CHIP 2SC3875S ALY BK KEC CHIP 2...

Page 31: ...ESCRIPTION C1148 C1156 C1160 C1162 C1166 C117 C118 C119 C1194 C1199 C120 C1200 C1201 C121 C1225 C123 C1230 C1231 C1245 C1247 C126 C1311 C1312 C1313 C1315 C1316 C1317 C1318 C1481 C1482 C1502 C1507 C1514 C1515 C1516 C1832 C1833 C1834 C204 C210 C211 C214 C215 C215 C221 C238 C241 C300 C304 C305 C307 C315 0CE476SF6DC 0CE476SF6DC 0CE476SF6DC 0CE107SF6DC 0CE107SF6DC 0CE477SF6DC 0CE106SF6DC 0CE106SF6DC 0C...

Page 32: ...SMD R TP 22UF MVG 16V 20 SMD R TP LOCA NO PART NO DESCRIPTION C838 C839 C840 C851 C853 C884 C896 C901 C904 C905 C930 C946 C947 C952 L1000 L1101 L1102 L1103 L1104 L1124 L409 L410 L411 L412 C1 C2 C3 C4 C5 C6 C7 JK401 JK503 JK601 P1001 P100A P100B P101 P1100 P1102 P400 P401 P600 P800 P801 P802 P803 0CE226SF6DC 0CE226SF6DC 0CE226SF6DC 0CE226SF6DC 0CE226SF6DC 0CE226SF6DC 0CE226SF6DC 0CE226SF6DC 0CE226S...

Page 33: ... L202 L203 L204 L300 L301 L400 L401 L402 L403 L406 L407 L408 L500 L501 L502 L503 L506 L514 L515 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200JB8010L 6200JB8010L 6200JB8010L 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6200J000013 6210VC0005A 6210...

Page 34: ...P N2 R TP 500 OHM MLB 321611 0500P N2 R TP 500 OHM RESONATOR CRYSTALABLS 27 000MHZ RESONATOR CERAMICCSBLA500KECZF09 B0 RESONATOR CRYSTALHC49U 18 432MHZ RESONATOR CRYSTAL ABLS 19 6608MHZ UPJ R1 023 UGCOM 21PIN W SHLD UPJ R1 023 UGCOM 21PIN W SHLD UJB 08 01A UGCOM 8P RCA 1P S JACK DC1R019NDA JAE 1 0MM 19PIN HDMI JACK PPJ137A PARK ELEC AUDIO L MONO JACK KJA PH 3 0064 KSD 3 5PHI 14P DUALJACK MANUAL US...

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Page 39: ...Feb 2006 Printed in Korea P NO 3828VD0223W ...

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