Panasonic TC-L42U5H Page 14 Service Manual Download | Manualshive

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14

6. Disassembly and Assembly Instructions

1. Remove the screws to remove the stand.

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Summary of Contents for TC-L42U5H

Page 1: ... Panasonic Corporation 2012 Unauthorized copying and distribution is a violation of law ORDER NO MTNC120572CE B32 Canada B61 LCD TV Model No TC L42U5H TC L42U5L ...

Page 2: ... 3 1 Service Hint 6 3 2 Applicable signals 7 4 Specifications 8 5 Troubleshooting Guide 9 5 1 No Power 9 5 2 Abnormal Display 10 5 3 No Display 11 5 4 Sound Problem 12 5 5 Remote Control Malfunction 13 6 Disassembly and Assembly Instructions 14 7 Block Diagram 18 8 Wiring Connection Diagram 20 8 1 Caution Statement 20 8 2 Wiring 20 9 Exploded View and Replacement Parts List 21 9 1 Exploded View 21...

Page 3: ...een the jumpered AC plug and each exposed metallic cabinet part on the equipment such as screwheads connectors control shafts etc When the exposed metallic part has a return path to the chassis the reading should be 100 Mohm and over When the exposed metal does not have a return path to the chassis the reading must be 1 1 2 Leakage Current Hot Check See Figure 1 1 Plug the AC cord directly into th...

Page 4: ... of the assembly 3 Use only a grounded tip soldering iron to solder or unsolder ES devices 4 Use only an anti static solder removal device Some solder removal devices not classified as anti static ESD protected can generate electrical charge sufficient to damage ES devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ES devices 6 Do not remove a...

Page 5: ...ee solder has a higher melting point than standard solder Typically the melting point is 50 70 F 30 40 C higher Please use a high temperature soldering iron and set it to 700 20 F 370 10 C Pb free solder will tend to splash when heated too high about 1100 F or 600 C If you must use Pb solder please completely remove all of the Pb free solder on the pins or solder area before applying Pb solder If ...

Page 6: ...r out AV Terminal HDMI in SD Card PC in Digital Signal Processor Nile Tcon Tuner All boards are non serviceable and should be exchanged for service IR Board Remote Receiver LED Power Board Power AC DC DC DC Key Board Control Button Power switch Main Board Power Board Key Board IR Board ...

Page 7: ...atible to VESA standard timing Applicable input signal for PC is basically compatible to HDMI standard timing Note Signals other than above may not be displayed properly The above signals are reformatted for optimal viewing on your display PC signal is magnified or compressed for display so that it may not be possible to show fine detail with sufficient clarity ...

Page 8: ... 1 mm 122 3 mm Mass With Pedestal 15 1 kg Without Pedestal TV only 13 3 kg Display panel Aspect Ratio 16 9 Visible screen size 697 7 mm H 392 3 mm V 31 5 inches diagonal Number of pixels 1 049 088 1 366 W 768 H Sound Speaker 100 mm 27 mm 27 mm 2 16 Ω Audio Output 10 W 5 W 5 W 10 THD Receiving System DVB T NTSC Analogue NTSC PAL M PAL N Digital SBTVD T Aerial input VHF UHF Operating Conditions Temp...

Page 9: ... input and the power is ON Power On Power board output 5V Replace the Power board Yes No Yes No Use RC or Key to turn on the TV No Yes 1 RC can turn on the TV and Key can t replace the key board 2 Key can turn on the TV and RC can t replace the RC Replace the Main board ...

Page 10: ...10 5 2 Abnormal Display Abnormal Display Replace LVDS Cable Replace the main board Replace the panel No No Yes No Enter factory mode to Reset Replace the main board No Yes Reset Check the OSD is normal ...

Page 11: ...he Panel No display LED No power LED Off Replace the main board Check the backlight is On Check the LVDS cable Reinsert or replace the LVDS cable Replace the main board Replace the Panel No Yes Yes No Yes No No Yes Yes No Yes No Power board output 12 24V Check TV is under control and power on off by remote control and power key ...

Page 12: ...und or sound abnormal Check the TV is muted adjust the volume or enter the menu to reset Replace the main board Check the audio source connection and the TV system are correct No Yes Replace the main board Replace the speaker No ...

Page 13: ...rol malfunction Replace the battery Replace the remote control Whether the IR board is abnormal Yes Replace the IR board Replace the main board Yes Yes Use the other remote controls Check the remote control battery is not properly placed or no power No ...

Page 14: ...14 6 Disassembly and Assembly Instructions 1 Remove the screws to remove the stand ...

Page 15: ...ointed with front cabinet by several hooks at top and both side After remove the screws take rear cover at bottom side and pull up it forcibly just like tearing rear cover from front cabinet 3 Unplug these connectors and cable clip on the main board and power board ...

Page 16: ...16 4 Remove the Speakers 5 Remove the screws to remove the Main Board and Power Board ...

Page 17: ...17 6 Remove the screws to remove the BKT 7 Remove the panel ...

Page 18: ...18 8 Remove the Key board and IR board ...

Page 19: ...19 7 Block Diagram ...

Page 20: ...n Please confirm that all flexible cables are assembled correctly Also make sure that they are locked in the connectors Verify by giving the flexible cables a very slight pull 8 2 Wiring CN701 CN9903 CN8103 PANEL CN407 CN001 CN601 SP CN407 CN0201 4 5 2 3 1 6 6 ...

Page 21: ...21 9 Exploded View and Replacement Parts List 9 1 Exploded View ...

Page 22: ...1 TZZ00000371A Key Pad 1 12 TZZ00000362A Key Board 1 13 TZZ00000291A Base 1 TZZ00000175A Power Cord 1 TZZ00000006A Remote Controller 1 TZZ00000570A Manual 1 TZZ00000555A Rating Label 1 TZZ00000591A Cushion TL 1 TZZ00000592A Cushion TR 1 TZZ00000595A Cushion TM 1 TZZ00000593A Cushion BL 1 TZZ00000594A Cushion BR 1 TZZ00000589A Carton 1 TZZ00000508A PE Bag For Set 1 TZZ00000211A Cable 1 CN701 CN1901...

Page 23: ...0371A Key Pad 1 12 TZZ00000362A Key Board 1 13 TZZ00000289A Base 1 TZZ00000177A Power Cord 1 TZZ00000192A Power Cord 1 TZZ00000006A Remote Controller 1 TZZ00000567A Manual 1 TZZ00000557A Rating Label 1 TZZ00000591A Cushion TL 1 TZZ00000592A Cushion TR 1 TZZ00000595A Cushion TM 1 TZZ00000593A Cushion BL 1 TZZ00000594A Cushion BR 1 TZZ00000590A Carton 1 TZZ00000508A PE Bag For Set 1 TZZ00000209A Cab...

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