LG 42WS10 Service Manual Download Page 31 | Manualshive

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Summary of Contents for 42WS10

Page 1: ...IS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS NO LWB1A MODEL 42WS10 42WS10 BAAL North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only P NO MFL63279923 1112 REV01 Printed in Korea ...

Page 2: ...ed Only for training and service purposes 2 CONTENTS CONTENTS 2 PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 7 TIMING CHART 8 ADJUSTMENT INSTRUCTION 10 BLOCK DIAGRAM 15 DESCRIPION OF BLOCK DIAGRAM 16 TROUBLE SHOOTING 17 EXPLODED VIEW 29 SCHEMATIC CIRCUIT DIAGRAM ...

Page 3: ... grounded through wrist band Do not leave the module in high temperature and in areas of high humidity for a long time The module not be exposed to the direct sunlight Avoid contact with water as it may a short circuit within the module If the surface of panel become dirty please wipe it off with a softmaterial Cleaning with a dirty or rough cloth may damage the panel WARNING BE CAREFUL ELECTRIC S...

Page 4: ... sinks are correctly installed 8 Always connect the test receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead Always remove the test receiver ground lead last 9 Use with this receiver only the test fixtures specified in this service manual CAUTION Do not connect the test fixture ground strap to any heat sink in this receiver Electrostatically Sensit...

Page 5: ... gently prying up on the lead with the soldering iron tip as the solder melts 2 Draw away the melted solder with an anti static suction type solder removal device or with solder braid before removing the IC Replacement 1 Carefully insert the replacement IC in the circuit board 2 Carefully bend each IC lead against the circuit foil pad and solder it 3 Clean the soldered areas with a small wire bris...

Page 6: ... carefully crimp it around the IC pin Solder the IC connection 4 Route the jumper wire along the path of the out away copper pattern and let it overlap the previously scraped end of the good copper pattern Solder the overlapped area and clip off any excess jumper wire At Other Connections Use the following technique to repair the defective copper pattern at connections other than IC Pins This tech...

Page 7: ...er specification Safety CE IEC specification EMC CE IEC 4 General Specification No Contents Description Remark 1 Customer BRAND 2 User Model Name 42WS10 3 Sale region Worldwide 4 Feature 107 cm 42 inch LCD Monitor Signage 5 Chassis Name LWB1A 6 General Extenrnal SW Input Menu E D F G Auto Set Power Scope Adj Function RGB In Out DVI In Out HDMI In DP In RS 232C In Out 8Keys AV In Component In Speak...

Page 8: ... 600 1 4 23 6 H Pixels 49 5 46 875 1056 800 16 80 160 800 x600 V Lines 75 0 625 600 1 3 21 7 H Pixels 57 283 49 725 1152 832 32 64 224 832 x624 V Lines 74 55 667 624 1 3 39 8 H Pixels 65 0 48 363 1344 1024 24 136 160 1024 x768 V Lines 60 0 806 768 3 6 29 9 H Pixels 78 75 60 123 1312 1024 16 96 176 1024 x768 V Lines 75 029 800 768 1 3 28 10 H Pixels 74 5 44 772 1664 1280 64 128 192 1280 x720 V Line...

Page 9: ...2240 1680 104 176 280 1680 x1050 V Lines 59 954 1089 1050 3 6 30 8 H Pixels 148 50 67 5 2200 1920 88 44 88 1920 x1080 V Lines 60 1125 1080 4 5 46 3 COMPONENT INPUT Y Pb Pr 4 HDMI Display Port DTV NO Resolution H freq kHz V freq Hz 1 720 480 15 63 59 94 SDTV DVD 480i 2 720 483 31 47 59 94 EDTV 480p 3 720 576 15 625 50 00 SDTV DVD 576i 4 720 576 31 25 50 00 HDTV 576p 5 1280 720 45 00 60 00 HDTV 720p...

Page 10: ... 3 After function inspection Push In stop key 3 Main PCB check process 3 1 ADC Process 3 1 1 ADC Enter Service Mode by pushing ADJ key Enter Internal ADC mode by pushing G key at ADC Calibration Caution Using power on button of the Adjustment R C power on Multi vision ADC Calibration Protocol RS232 Adjust Sequence aa 00 00 Enter Adjust Mode xb 00 40 Component1 Input 480i ad 00 10 Adjust 480i Comp1...

Page 11: ...a 3 HDMI EDID data 4 DP EDID data 3 3 Function Check 3 3 1 Check display and sound Check Input and Signal items cf work instructions 1 RGB PC 1920 x 1080 60hz 2 COMPONENT 480i AV with D sub to RCA cable 3 DVI 4 PC Audio In with Phone and RCA to Phone cable 5 HDMI 6 DP 7 USB 8 LAN 9 Speaker Out Display and Sound check is executed by Remote controller Caution Not to push the INSTOP KEY after complet...

Page 12: ...Color Analyzer s Prove vertically 80 100 3 Aging time After aging start keep the power on no suspension of power supply and heat run over 5 minutes Using no signal or full white pattern or the others check the back light on Auto adjustment Map RS 232C RS 232C COMMAND CMD ID DATA Wb 00 00 White Balance Start Wb 00 ff White Balance End Caution Color Temperature COOL Medium Warm One of R Gain G Gain ...

Page 13: ...ng Technology Group C Serial number D L must be conformed when it is produced in production line because serial number D L is mandatory by D book 4 0 Manual Download Model Name and Serial Number If the TV set is downloaded By OTA or Service man Sometimes model name or serial number is initialized Not always There is impossible to download by bar code scan so It need Manual download a Press the ins...

Page 14: ...ick Auto tab and set as below 6 Click Run 7 After downloading check OK message DOWNLOAD USB 1 Put the USB Stick to the USB socket 2 Automatically detecting update file in USB Stick If your downloaded program version in USB Stick is Low it didn t work But your downloaded version is High USB data is automatically detecting 3 Show the message Copying files from memory 4 Updating is staring 5 Updating...

Page 15: ...LGE Internal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 15 BLOCK DIAGRAM ...

Page 16: ...put DP PS161 convert DP signal to HDMI signal simply and deliver SII9489C SII9489C also have DVI in out function and only DVI input signal is delivered to Output Jack 5 RGB Component AV IN OUT CIRCUIT This section is composed of RGB Input Output Jack Schmitt trigger inverter IC OP AMPs and peripheral devices RGB input signal path is connected from input jack to scaler directly RGB output signal is...

Page 17: ...LGE Internal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 17 TROUBLESHOOTING GUIDE 1 NO POWER ...

Page 18: ...LGE Internal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 18 2 NO RASTER OSD IS NOT DISPLAYED MAIN ...

Page 19: ...LGE Internal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 19 3 NO RASTER STATE ON RGB INPUT ...

Page 20: ...LGE Internal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 20 4 NO RASTER STATE ON AV INPUT ...

Page 21: ...LGE Internal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 21 5 NO RASTER STATE ON COMPONENT INPUT ...

Page 22: ...LGE Internal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 22 6 NO RASTER STATE ON HDMI INPUT ...

Page 23: ...LGE Internal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 23 7 NO RASTER STATE ON DVI INPUT ...

Page 24: ... 24 LGE Internal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 8 NO RASTER STATE ON DP INPUT ...

Page 25: ... 25 LGE Internal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 9 NO RASTER STATE ON RGB AV COMPONENT OUT ...

Page 26: ... 26 LGE Internal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 10 NO RASTER STATE ON DVI OUT ...

Page 27: ... 27 LGE Internal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 11 NO RASTER STATE ON USB INPUT ...

Page 28: ... 28 LGE Internal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes 12 THERE IS NO SOUND OUTPUT ...

Page 29: ...and mechanical parts in this chassis have special safety related characteristics These parts are identified by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X RADIATION Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMPO...

Page 30: ...Copyright ⓒ 2011 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

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