Panasonic TH-55LFV50U Service Manual Download Page 2 | Manualshive

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TABLE OF CONTENTS Page

1 Important Safety Instructions --------------------------------------------------------------------------------  3
2 Warning ------------------------------------------------------------------------------------------------------------- 4
3 Service Navigation -----------------------------------------------------------------------------------------------  6

3.1. Service Hint -------------------------------------------------------------------------------------------------- 6

3.2. Applicable signals ------------------------------------------------------------------------------------------ 7

4 Specifications ----------------------------------------------------------------------------------------------------- 8

5 Troubleshooting Guide ---------------------------------------------------------------------------------------- 10

5.1 No Power ---------------------------------------------------------------------------------------------------- 10

5.2 Abnormal Display ------------------------------------------------------------------------------------------ 11
5.3 No Display --------------------------------------------------------------------------------------------------- 12

6 Disassembly and Assembly Instructions --------------------------------------------------------------- 13

7 Block Diagram ---------------------------------------------------------------------------------------------------- 21
8 Wiring Connection Diagram --------------------------------------------------------------------------------- 22

8.1. Caution Statement -------------------------------------------------------------------------------------- 22

8.2. Wiring -------------------------------------------------------------------------------------------------------- 22

9 Exploded View and Replacement Parts List ----------------------------------------------------------- 23

9.1. Exploded View -------------------------------------------------------------------------------------------- 23
9.2. Replacement Parts List ---------------------------------------------------------------------------------- 24

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Summary of Contents for TH-55LFV50U

Page 1: ... Panasonic Corporation 2012 Unauthorized copying and distribution is a violation of law ORDER NO ITD1210048CE B32 Canada B61 FULL HD LCD Display Model No TH 55LFV50U ...

Page 2: ...s 7 4 Specifications 8 5 Troubleshooting Guide 10 5 1 No Power 10 5 2 Abnormal Display 11 5 3 No Display 12 6 Disassembly and Assembly Instructions 13 7 Block Diagram 21 8 Wiring Connection Diagram 22 8 1 Caution Statement 22 8 2 Wiring 22 9 Exploded View and Replacement Parts List 23 9 1 Exploded View 23 9 2 Replacement Parts List 24 ...

Page 3: ...ement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when mo...

Page 4: ...can cause fire or electric shock Disconnect the power plug from the wall outlet as a safety precaution before carrying out any cleaning Electric shocks can result if this is not done Clean the power cable regularly to prevent it from becoming dusty Built up dust on the power cord plug can increase humidity which might damage the insulation and cause fire Unplug the cord from the wall outlet and cl...

Page 5: ...the cable Do not make any modifications place heavy objects on place near hot objects heat bend twist or forcefully pull the power cable Doing so may cause damage to the power cable which can cause fire or electric shock If damage to the cable is suspected have it repaired at an Authorized Service Center If this Display will not be used for a long period of time unplug the power cord from the wall...

Page 6: ...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 Sensor Board Temperature Sense Controller IR Connector Board Use the remote control can control more than one TV at the same time Main Board Power Board Key Board Sensor BOARD IR Board IR Connector Board ...

Page 7: ...ct 60Hz vertical and 31 5KHz horizontal In some cases abnormal signals such as stripes might appear on the screen when the PC power is turned off or if the PC is disconnected If so press the INPUT button to enter the video mode Also make sure that the PC is connected When horizontal synchronous signals seem irregular in RGB mode check PC power saving mode or cable connections The display settings ...

Page 8: ... Normal 2 Channel L R Audio Output RCA Jack x 2 0 5 V rms Normal 2 Channel L R RS232C D Sub Jack x 2 9 pin TXD RXD 1 1 RJ 45 RJ 45 Jack x 1 8 pin 10 100 LAN Port HDMI Input HDMI Jack x 1 Type A 18 pin Video 480i 480p 720p 1080i 1080p Audio 32 kHz 44 1 kHz 48 kHz 2 Channel L R Supports LPCM only DVI D Input DVI D jack MAX 1920 x 1080 60 Hz WUXGA DVI I Output DVI I jack Pass through from DVI D Input...

Page 9: ...Power Consumption Standby 0 5 W Power Consumption Saving 2 W Dimensions W x H x D 1215 5 x 686 3 x 121 2 mm 47 85 x 27 02 x 4 77 Weight 36 kg 79 3 lbs Gross Weight 48 kg 105 82 lbs Operating Condition Specifications Temperature 0 40 C 32 104 F Humidity 5 90 RH No condensation Altitude 0 2 000 m ...

Page 10: ...and the power is ON Power On Power board CN924 Pin 3 4 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 11: ...11 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 12: ...n 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 CN921 Pin 1 2 3 4 5 24V CN922 Pin 1 2 3 4 5 24V CN926 Pin 5 6 7 24V CN925 Pin 4 5 6 12V Check TV is under control and power on off by remote control and power key CN422 Pin 13 14 5V CN405 Pin 1 2 3 12V CN405 Pin 5 6 7 24V ...

Page 13: ...13 6 Disassembly and Assembly Instructions 10 7 7 12 13 ...

Page 14: ...14 1 Remove the screws to remove the rear cover A B ...

Page 15: ...15 B B 14 15 16 ...

Page 16: ...16 2 Remove the Key Board and IR board C C 11 ...

Page 17: ...17 3 Remove the screws to remove the BKT 4 Unplug these connectors and cable clip 8 9 D 4 6 5 E 3 ...

Page 18: ...18 5 Remove the screws to remove Main board power board and IR Connector board 6 Remove the mainframe F F B B B ...

Page 19: ...19 7 Remove the Fan and Sensor Board 8 Remove the BKT H F C 2 2 G J ...

Page 20: ...20 9 Panel 1 I ...

Page 21: ... Block Diagram Main Board Power Board 21 7 Block Diagram Main Board Power Board 21 7 Block Diagram Main Board Power Board 21 7 Block Diagram Main Board Power Board 21 7 Block Diagram Main Board Power Board 21 7 Block Diagram Main Board Power Board 21 7 Block Diagram Main Board Power Board 21 7 Block Diagram Main Board Power Board ...

Page 22: ... Caution 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 MB PANEL MB LAMP MB PANEL MB PB MB Sensor Board 2 5 4 3 1 6 ...

Page 23: ...23 9 Exploded View and Replacement Parts List 9 1 Exploded View ...

Page 24: ... Accessory TZZ00000671A Power Cord 1 Included Accessory TZZ00000705A Manual 1 Included Accessory TZZ00000706A CD Manual 1 Included Accessory TZZ00000694A Wire clampers 3 Included Accessory TZZ00000700B Rating Label 1 TZZ00000664A Cable MB TO KB 1 CN4208 CN001 TZZ00000673A Flexible Cable MB TO IR 1 CN4108 CN201 TZZ00000674A Flexible Cable MB TO IR CONNECTOR 1 CN401 CN403 TZZ00000675A Cable PB TO PA...

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