Panasonic TX-24CR300, Service Manual

Page 1: ... should be replaced with manufacturer s specified parts to prevent shock fire or other hazards Do not modify the original design without permission of manufacturer IMPORTANT SAFETY NOTICE This service information is designed for experienced repair technicians only and is not designed for use by the general public It does not contain warnings or cautions to advise non technical individuals of poten...

Page 2: ...NTION OF ELECTROSTATIC DISCHARGE ESD TO ELECTROSTATICALLY SENSITIVE ES DEVICES 3 ABOUT LEAD FREE SOLDER PBF 4 SERVICE NAVIGATION 5 SERVICE HINTS 7 SERVICE MODE FUNCTION 9 SOFTWARE UPDATE 10 HOTEL MODE 11 PARTS LOCATION 14 LOCATION OF LEAD WIRING 15 BLOCK DIAGRAM 19 EXPLODED VIEW 20 ...

Page 3: ... point 5 Reserve the AC plug in the AC outlet and repeat each of the above measure 6 The potential at any point TOUCH CURRENT expressed as voltage U1 and U2 does not exceed the following values For a c U1 35 V peak and U2 0 35 V peak For d c U1 1 0 V Note The limit value of U2 0 35 V peak for a c and U1 1 0 V for d c correspond to the values 0 7 mA peak a c and 2 0 mA d c The limit value U1 35 V p...

Page 4: ...ted 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 replacement ES device from its protective package until immediately before you are ready to install it Most replacement ES devices are packaged with leads electrically shorted together by conductive foam al...

Page 5: ...as 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 this is not...

Page 6: ...Panel Backlight 4 Speaker 5 LVDS Cable 6 1 Main BOARD 3 LED BOARD 2 P BOARD 4 Panel 5 Speaker 6 LVDS Cable 24 inch Models Name Function Position Main Board AV Terminal HDMI USB TUNER DVB A T C CI Slot Headphones Speaker out 1 P Board Main Input Power Supply Back Light 2 LED Board Remote Receiver 3 Panel LCD Panel Backlight 4 Speaker 5 LVDS Cable 6 3 LED BOARD 2 P BOARD 4 Panel 5 Speaker 6 LVDS Cab...

Page 7: ...eaker 5 LVDS Cable 6 1 Main BOARD 3 LED BOARD 2 P BOARD 4 Panel 5 Speaker 6 LVDS Cable Name Function Position Main Board AV Terminal HDMI USB TUNER DVB A T C CI Slot Headphones Speaker out 1 P Board Main Input Power Supply Back Light 2 LED Board Remote Receiver 3 Panel LCD Panel Backlight 4 Speaker 5 LVDS Cable 6 48 inch Models 40 inch Models 1 Main BOARD 3 LED BOARD 2 P BOARD 4 Panel 5 Speaker 6 ...

Page 8: ...bel on the rear cover of the unit In the below example the key information would be Model TX 32CW304 Product Code 10089032 first 8 digits of upper code Then login to PanaNet and download concerned parts list Model No and Production Code are part of the file name Service Hints How to remove the pedestal and backcover 24 inch Lay the main unit face down see Fig 5 Press lock release button and remove...

Page 9: ...ackcover 32 40 48 inch Lay the main unit face down see Fig 7 Remove the 4 fixing screws and the pedestal assembly see Fig 8 Remove the fixing screws and the back cover see Fig 9 Fig 9 Fig 8 1 1 Fig 7 1 1 1 1 2 2 3 3 2 2 2 2 2 2 2 2 2 2 ...

Page 10: ...heck SW releases by using this menu Some Video settings can be done How to enter into Service Menu First press MENU button on the remote control then type 4725 and the Service Main Menu will appear How to exit To return from Service Menu simply press EXIT on remote control ...

Page 11: ...uto_update_D7L txt should be copied directly into root path of an empty flash memory not in a folder 2 Insert flash memory into the TV while TV is disconnected from AC mains 3 Reconnect TV to main power and keep pressing the OK button on remote until LED starts blinking 4 Now SW update is in progress and LED flashes until update is completed ...

Page 12: ...nu namely Volume Limit Panel Button OSD Disable In hotel mode users can not reach channel table and install menu so they could not change any program information Last Status Setting Last Status item to On enable TV open with the closing status Otherwise if Last Status item is set Off TV opens with standby status Panel Lock Enables Panel Lock On or prohibits Panel Lock Off the use of front panel bu...

Page 13: ...wel png Copy NVRAM data service list preferences etc to USB device On MB9x all nvram data is stored in 8x32KB Flash files named as Flash0 bin Flash1 bin Flash7 bin When Copy to USB is called those files are copied from TV to USB Then they can be used for various purposes testing on another TV or testing debugging on observatory etc Note that USB should be plugged before this operation Copy From US...

Page 14: ...nal Clock If hotel mode is active a new function add wake up timer will be available in Settings Timers menu That function will open a new menu to set wake up time After timer is saved tv can wake up automatically on desired time If alarm option was selected as on after wake up tv will show welcome image and an alarm will be heared Then any key will stop alarm and welcome image If alarm option was...

Page 15: ...location Pos Name 1 Remote Control 2 Main power switch 3 IR Remote Receiver K Board 4a CI slot USB AV in HeadPhone 5 Speaker 6 Mode Switch Selector 7 SPDIF SCART VGA ANT HDMI1 2 LNB 8 Stand Foot 1 4a 5 6 2 7 3 8 ...

Page 16: ...15 Location of Lead Wiring 24 inch model a Back Light b LVDS Cable c Speaker connection d AC Mains lead e Main power switch f IR Remote Receiver a b c e f d ...

Page 17: ...16 Location of Lead Wiring 32 inch model a Back Light b LVDS Cable c Speaker connection d AC Mains lead e Main power switch f IR Remote Receiver a b c e d f ...

Page 18: ...17 Location of Lead Wiring 40 inch model a Back Light b LVDS Cable c Speaker connection d AC Mains lead e Main power switch f IR Remote Receiver a c f b e d ...

Page 19: ...18 Location of Lead Wiring 48 inch model a Back Light b LVDS Cable c Speaker connection d AC Mains lead e IPS Cable f IR Remote Receiver a c d b e f ...

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Page 21: ...xploded View 24 inch Pos Name Qty 1 Rear Cover 1 2 Front Cover 1 3 IR Remote Receiver LED Board 1 4 Panel 1 5 Speaker 1 6 Rear cover Screw 3x9 5 4 7 Rocker Switch 1 8 Stand 1 9 Rear cover Screw 4x12 2 5 6 3 2 9 6 6 ...

Page 22: ...3 1 8 7 6 Exploded View 32 40 48 inch Po s Name Qt y 1 Rear Cover 1 2 Front Cover 1 3 IR Remote Receiver LED Board 1 4 Panel 1 5 Speaker 1 6 Rear cover Screw 9 7 Foot bracket and 12 screws 1 8 Stand plate only 1 ...