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PLASMA TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : AF-046A

MODEL : DT-42PY10X

website:http://biz.LGservice.com

e-mail:http://www.LGEservice.com/techsup.html

Содержание DT-42PY10X

Страница 1: ...A TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS AF 046A MODEL DT 42PY10X website http biz LGservice com e mail http www LGEservice com techsup html ...

Страница 2: ...NS 3 DESCRIPTION OF CONTROLS 4 SPECIFICATIONS 13 ADJUSTMENT INSTRUCTIONS 14 TROUBLE SHOOTING GUIDE 17 BLOCK DIAGRAM 31 EXPLODED VIEW 32 EXPLODED VIEW PARTS LIST 33 REPLACEMENT PARTS LIST 34 SCHEMATIC DIAGRAM PRINTED CIRCUIT BOARD ...

Страница 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...

Страница 4: ...ure format TEXT These buttons are used for teletext For further details see the Teletext section switches the subtitle on or off in Digital mode Note In teletext mode the PIP PR SWAP and PIP INPUT buttons are used for teletext function VOL Volume Up Down increases decreases sound level PR Programme Up Down selects a programme switches the set on from standby FAVOURITE selects a favourite programme...

Страница 5: ...item switches the set on from standby 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 when the set is turned on ...

Страница 6: ...e strongly recom mend that you use the cable that has a core or the EMI Filter core along with separate cable 5 COMPONENT INPUT Connect DVD video outputs to Y PB PR of COMPONENT INPUT and audio outputs to Audio sockets of AUDIO INPUT 6 AUDIO VIDEO IN SOCKETS A V INPUT 1 Connect the audio video out sockets of external equipment to these sockets S VIDEO AUDIO IN SOCKETS Connect the S VIDEO out socke...

Страница 7: ...To avoid picture noise interference leave an adequate distance between the VCR and the set Watching TV programmes Turn the set on and select the programme you want Watching VCR 1 Use the TV AV button on the remote control to select VIDEO 1 or VIDEO 2 If both S VIDEO and VIDEO sockets have been connected to the S VHS VCR simultaneously only the S VIDEO can be received 2 Insert a video tape into the...

Страница 8: ...PB PR INPUT jacks on the set and connect the DVD audio outputs to the AUDIO INPUT jacks on the set as shown in the figure 2 If your DVD only has an S Video output jack connect this to the S VIDEO input on the set and connect the DVD audio outputs to the AUDIO INPUT jacks on the set as shown in the figure Note a If your DVD player does not have component video output use S Video b Digital Audio wil...

Страница 9: ...box con nector Then make the corresponding audio connections How to use 1 Turn on the digital set top box Refer to the owner s manual for the digital set top box 2 Use TV AV or MULTIMEDIA on the remote control to select Component 1 Component 2 RGB DTV or DVI DTV This set can receive Digital Over the air Cable signals without an external digital set top box However if you do receive Digital signals...

Страница 10: ...htness in PC mode If noise is present change the PC mode to another resolution change the refresh rate to another rate or adjust the bright ness and contrast on the menu until the picture is clear If the refresh rate of the PC graphic card can not be changed change the PC graphic card or consult the manufacturer of the PC graphic card Note a Depending on the graphics card DOS mode may not work if ...

Страница 11: ...stereo system via the Digital Audio Output Optical port Caution Do not look into the optical output port Looking at the laser beam may damage your vision Digital Audio Output How to connect 1 Connect one end of an optical cable to the TV Digital Audio Optical Output port 2 Connect the other end of the optical cable to the digital audio optical input on the audio equipment 3 Set the TV Speaker opti...

Страница 12: ...acket Wall mounting bracket Only DT 60PY10 series Tilt wall mounting bracket Only DT 60PY10 series Tilt wall mounting bracket 40 42 50 40 42 50 Ceiling mounting bracket 40 42 50 42 40 2 TV brackets 2 Wall brackets option 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 d...

Страница 13: ...N Typ Max Unit No Item Remark V Application Range This spec is applied to the 42 50 60 PDP TV used AF 046A Chassis V Specification Each part is tested as below without special appointment 1 Temperature 25 5 C 77 9 F 2 Relative Humidity 65 10 3 Power Voltage Standard Input voltage 100 240V 50 60Hz Standard Voltage of each product is marked by models 4 Specification and performance of each parts are...

Страница 14: ...rogrammer click icon 5 End after confirming 4 POWER PCB Assy Voltage Adjustment Va Vs Voltage Adjustment 4 1 Test Equipment D M M 1EA 4 2 Connection Diagram for Measuring Refer to Fig 1 1 Va Adjustment 1 After receiving 100 Full White Pattern Heat Run over 10min 2 Connect terminal of D M M to Va pin of P805 and connect terminal to GND pin of P805 3 Adjust RV601 voltage to match that of the label o...

Страница 15: ...stment errors 5 After adjustment is complete exit the adjustment mode by pressing the ADJ KEY 7 Adjustment of White Balance 7 1 Required Equipment 1 Color analyzer CA 100 or similar product 2 Automatic adjustor with automatic adjustment hour necessity and the RS 232C communication being possible 3 AV Pattern Generator 7 2 Connection Diagram of Equipment for Measuring Automatic Adjustment PDP SET 0...

Страница 16: ...ic 5 After attaching sensor to center of screen select 2 White Balance of Ez Adjust by pressing the ADJ KEY on the Service R C Then enter adjustment mode by pressing the Right KEY G 6 Adjust the High Light using R Gain B Gain 7 Adjust using Volume KEY G Gain 127 DT 42PY10X R Offset 50 B Offset 48 B Offset 50 DT 50PY10 R Offset 52 B Offset 45 B Offset 60 DT 60PY10 R Offset 55 B Offset 50 B Offset 5...

Страница 17: ...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...

Страница 18: ... 18 1 2 DT 42PY10X Sony Power Board Structure 1 2 3 T502 Vs Trans T702 Va Trans T101 St by Trans T103 Low Voltage Trans ...

Страница 19: ... 19 1 3 DT 50PY10 Sony Power Board Structure 1 2 3 T502 Vs Trans T702 Va Trans T101 St by Trans T103 Low Voltage Trans ...

Страница 20: ... 20 1 3 DT 50PY10 Sanken Power Board Structure 1 2 3 T221 Vs Trans T271 Va Trans T121 St by Trans T201 Low Voltage Trans ...

Страница 21: ... 21 1 4 DT 60PY10 Power Board Structure 1 2 3 AC IN ...

Страница 22: ... 22 1 2 3 PFC ...

Страница 23: ... 23 1 2 3 DC DC ...

Страница 24: ...Power Switch and Power Board Cable Connect the Cable Yes No Is normal the Fuse F101 on Power Board Replace the Fuse Yes No Is connected the Power Board and 7P of VSC Board Cable Connect the Cable Yes No Is connected the Power Switch and Power Board Cable After remove the cable connection to Power Board except the CN101 connection cable authorizes the AC voltage marking on manual When ST BY 5V does...

Страница 25: ... B D Yes No Is normal the X Board Is normal the output voltage after remove P1 2 3 4 5 connector of X B D After remove P1 P2 P3 P4 output voltage normality Replace Right X B D After remove P6 P7 output voltage normality Replace Left X B D Yes No Yes Is normal the VSC Board Is normal the output voltage after remove P1000 P1200 After crisis COF of each board check the normality operates If in case t...

Страница 26: ... the output voltage after remove P1 2 3 4 5 connector of X B D After remove P1 P2 P3 P4 output voltage normality Replace Right X B D After remove P6 P7 output voltage normality Replace Left X B D Yes No Yes Is normal the VSC Board Is normal the output voltage after remove P1000 P1200 After crisis COF of each board check the normality operates If in case normality operates correspondence COF Fail i...

Страница 27: ...rmal the LVDS cable Is normal the VSC Digital Board Is connected the LVDS cable correctly Connect the cable correctly Yes No No Yes Operates the Thine IC IC1401 Replace Thine IC IC1401 No Is normal the Ctrl Board of Module Replace Ctrl B D No No Operates the IEP IC1301 Replace the IEP IC1301 Yes No Operates the Scaler IC701 Replace the Scaler IC700 Yes Replace the cable Yes Replace the VSC Digital...

Страница 28: ... AV mode 28 Is normal the Tuner Is normal the CXA2069Q IC301 Is connected the Tuner Cable correctly Connect the Cable correctly Yes No No Yes Is normal the VPC3230 or VPX3226 Replace the 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 the IC No Is normal the Input voltage IIC Communication and HV sync N...

Страница 29: ...o Yes Is normal the Scaler Is normal the Input voltage IIC Communication and HV sync No Replace the IC No Is normal the Sil169 IC601 Yes Is normal the Input voltage IIC Communication and HV sync No Replace the IC No Is normal the Scaler Is normal the Input voltage IIC Communication and HV sync No Replace the IC No Is correct the EDID Yes Is the latest version the Graphic card driver of the PC Inpu...

Страница 30: ...he SPK Yes Yes Is normal the RF Digital sound Is normal the MSP4410K IC501 No No Is normal the NSP6241 IC502 Yes Is normal the TAS5122 IC503 Is normal the Scaler IC503 Replace VSC Digital B D Yes Yes Yes Yes Is normal the RF Analog AV Component L R sound Is normal the CS5330A IC1205 MC33078 IC1206 Scaler IC701 Yes Is connected the Flat cable correctly Connect the Cable correctly No Yes No Replace ...

Страница 31: ... 31 BLOCK DIAGRAM BLOCK DIAGRAM ...

Страница 32: ... 32 EXPLODED VIEW 307 308 315 309 310 311 313 312 314 570 121 120 304 302 305 303 301 590 540 520 501 530 560 541 401 400 300 551 550 102 101 410 430 200 580 204 207 201 205 206 202 203 103 101 420 ...

Страница 33: ...0249A FRAME FRONT AL DN 42PY10 TOP 308 4972V00112A FIXER FRAME AL DN 42PY10 LEFT 309 4811V00109A BRACKET ASSEMBLY SPEAKER DN 42PY10 AF045A LEFT 310 3210V00252A FRAME FRONT AL DN 42PY10 LEFT 311 3790V00744E WINDOW DECO DT 42PY10X ACRYL LEFT 312 3210V00251A FRAME FRONT AL DN 42PY10 RIGHT 313 3790V00743E WINDOW DECO DT 42PY10X ACRYL BK 314 4811V00108A BRACKET ASSEMBLY SPEAKER DN 42PY10 AF045A RIGHT 3...

Страница 34: ...TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR150400BA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR387500AA 0TR102009AG 0TR830009BA 0TR830009BA 0TR387500AA 0TR102008AA 0DD226239AA 0DD226239AA K4S641632H TL75 54P TSOP K4S641632H TL75 54P TSOP K4S641632H TL75 54P TSOP COPY M37272EFSP6 OTP 42SDIP BK KIA7042AF SOT 89 TP 4 2V VOLTAGE AT24C16AN 10SI 2 7 ATMEL 8P SOIC S...

Страница 35: ...CA NO PART NO DESCRIPTION C1282 C1283 C1284 C1285 C1286 C1287 C1288 C1289 C1290 C1291 C1292 C1293 C1294 C1295 C1296 C1297 C1298 C1299 C1300 C1301 C1302 C1303 C1304 C1305 C1306 C1307 C1309 C1311 C1314 C1315 C1317 C1319 C1320 C1340 C1343 C201 C201 C202 C203 C204 C205 C206 C207 C208 C209 C209 C210 C211 C212 C213 C214 C226 0CE476SF6DC 0CE226SF6DC 0CE476SF6DC 0CE226SF6DC 0CE476SF6DC 0CE476SF6DC 0CE226S...

Страница 36: ...SMD SMD 10UF MVG 16V 20 R TP SMD SMD LOCA NO PART NO DESCRIPTION C576 C577 C583 C584 C585 C597 C602 C603 C604 C607 C609 C610 C611 C612 C613 C614 C615 C616 C616 C617 C621 C623 C624 C633 C636 C637 C638 C646 C647 C648 C652 C653 C654 C655 C660 C661 C662 C675 C679 C680 C681 C682 C683 C684 C686 C690 C728 C729 C812 C813 C827 C902 0CE475SK6DC 0CE475SK6DC 0CE108DJ618 0CF4741L438 0CF4741L438 0CE108DJ618 0CE...

Страница 37: ... SW800 F201 F202 F301 F302 IC502 L101 L101 L102 L102 L103 L104 L104 L105 L106 L107 L1101 L1201 L1204 L1602 L1605 L1606 L1607 L1608 L1609 L1610 0RKZVTA001L 0RKZVTA001L 0DL233309AC 0DL233309AC 0DL233309AC 0DL233309AC 6301V00003A 6301V00003A 0DL233309AC 0DL233309AC 0DL233309AC 0DL233309AC 0DL233309AC 6600VR1004A 140 315A 140 315A 140 315A 140 315A 140 315A 140 315A 6600VM2006A 6200C000010 6200C000010...

Страница 38: ... TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP FBMH3216 HM501NT 3 2X1 6X1 6MM R TP TO 0927 GET BK 200UH 10 2UEW 1 0PIE FBMH3216 HM501NT 3 2X1 6X1 6MM R TP TO 0927 GET BK 200UH 10 2UEW 1 0PIE ...

Страница 39: ......

Страница 40: ......

Страница 41: ......

Страница 42: ...PRINTED CIRCUIT BOARD MAIN TOP POWER S W TOP SIDE A V TOP SIDE A V BOTTOM INDEX TOP INDEX BOTTOM POWER S W BOTTOM MAIN BOTTOM CONTROL TOP CONTROL BOTTOM TUNER TOP TUNER BOTTOM ...

Страница 43: ...Dec 2004 Printed in Korea P NO 3828VD0193A ...

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