Panasonic TC-L32B6H, Service Manual

Page 1: ... Panasonic Corporation 2013 Unauthorized copying and distribution is a violation of law ORDER NO MTNC130232CE 32 inch Class 720p LCD HDTV Model No TC L32B6H KM21 Chassis ...

Page 2: ... 4 Hotel mode 11 5 5 Data Copy by USB Memory 12 6 Troubleshooting Guide 15 6 1 Check of the IIC bus lines 15 6 2 Power LED Blinking timing chart 16 6 3 LCD Panel test mode 16 7 Disassembly and Assembly Instructions 17 7 1 Disassembly Flow Chart for the Unit 17 7 2 Disassembly Procedure for the Unit 18 8 Measurements and Adjustments 21 8 1 Voltage chart of P board 21 8 2 Voltage chart of A board 21...

Page 3: ...en 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 the...

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: ...6 3 Service Navigation 3 1 PCB Layout Board Name Function A Board Main K Board IR LED AI P Board Power supply SW ...

Page 7: ...n Receiving channels Analogue TV VHF BAND 2 13 NTSC M USA UHF BAND 14 69 NTSC M USA CATV 1 125 USA CATV Aerial input VHF UHF Operating Conditions Temperature 0 C 40 C Humidity 20 80 RH non condensing Dimensions W H D With Pedestal 29 2 inch 20 3 inch 7 3 inch 741 mm 515 mm 184 mm TV only 29 2 inch 17 7 inch 3 1 inch 741 mm 450 mm 78 mm Mass Net With Pedestal 15 4 lb 7 kg TV only 13 2 lb 6 kg Conne...

Page 8: ...within 2 seconds 5 1 2 Key command 1 button Main items Selection in forward direction 2 button Main items Selection in reverse direction 3 button Sub items Selection in forward direction 4 button Sub items Selection in reverse direction VOL button Value of sub items change in forward direction in reverse direction 5 1 3 How to exit Switch off the power with the POWER button on the main unit or the...

Page 9: ...mple Data Remark ADJUST CONTRAST 000 COLOR 36 TINT FE SUB BRT 800 BACKLGT FFF H POS 40 H AMP 0 V POS 0 V AMP 0 A COM 0 WB ADJ R GAIN 8D G GAIN AE B GAIN FF R CENT 6C G CENT 80 B CENT A0 OPTION Boot ROM Factory Preset STBY SET 00 EMERGENCY ON CLK MODE 00 CLOCK FC7 Y C DELAY DYNAMIC OPT 1 00000000 OPT 2 11100110 OPT 3 00001001 OPT 4 00000000 EDID CLK HIGH SVCR TOOL 00 See Service tool mode DRV CHECK...

Page 10: ...ced to factory shipment setting 5 2 3 POWER ON TIME COUNT Note To display TIME COUNT menu highlight position then press MUTE for 3 sec Time Cumulative power on time indicated hour minute by decimal Count Number of ON times by decimal Note This indication will not be cleared by either of the self checks or any other command 5 2 4 Exit Disconnect the AC cord from wall outlet or press the POWER butto...

Page 11: ...e number Selection Off 0 to 99 Off give priority to a last memory Initial VOL Level Adjust the volume when each time power is switched on Selection Range Off 0 to 100 Off give priority to a last memory Maximum VOL Level Adjust maximum volume Range 0 to 100 Button Lock Select local key conditions Selection Off SETUP MENU Off altogether valid SETUP only F key is invalid Tuning guide menu can not be ...

Page 12: ...then copy to other TVs 5 5 2 Preparation Make pwd file as startup file for a or b in a empty USB Memory 1 Insert a empty USB Memory to your PC 2 Right click a blank area in a USB Memory window point to New and then click text document A new file is created by default New Text Document txt 3 Right click the new text document that you just created and select rename and then change the name and exten...

Page 13: ...llowing password for a or b by using remote control a For Board replacement 2770 b For Hotel 4850 Data will be copied from TV set to USB Memory It takes around 2 to 6 minutes maximum for copying 4 After the completion of copying to USB Memory remove USB Memory from TV set 5 Turn off the TV set Note Following new folder will be created in USB Memory for data from TV set a For Board replacement user...

Page 14: ...ent 2771 b For Hotel 4851 Data will be copied from USB Memory to TV set 4 After the completion of copying to USB Memory remove USB Memory from TV set a For Board replacement Data will be deleted after copying Limited one copy b For Hotel Data will not be deleted and can be used for other TVs 5 Turn off the TV set Note 1 Depending on the failure of boards function of Data copy for board replacement...

Page 15: ... forced to factory shipment setting Produce TV reception screen and while pressing VOLUME button on the main unit press MENU button on the remote control for more than 3 seconds 6 1 2 Exit Disconnect the AC cord from wall outlet or press the POWER button on the main unit for 3 seconds to turn off and then turn on automatically 6 1 3 Screen display 6 1 4 Check Point Confirm the following parts if N...

Page 16: ...o Exit Switch off the power with the POWER button on the main unit or the POWER button on the remote control How to confirm If the abnormal picture is displayed go into LCD Panel test mode to display the several test patterns And then judge by the following method Still abnormal picture is displayed The cause must be in LCD Panel Normal picture is displayed The cause must be in A board Remarks The...

Page 17: ...17 7 Disassembly and Assembly Instructions 7 1 Disassembly Flow Chart for the Unit This is a disassembly chart When assembling perform this chart conversely ...

Page 18: ...e the 4 screws 3 Remove the pedestal 7 2 2 Back Cover 1 Remove the 7 screws A 2 Remove the 6 screws B 3 Remove the 6 screws C 4 Remove the Back Cover 7 2 3 Key Button Bracket 1 Remove the 2 tabs 2 Remove the Key Button Bracket 7 2 4 P Board 1 Remove the 2 screws 2 Disconnect the connectors P2 and P3 3 Remove the P Board ...

Page 19: ...e Side AV bracket 4 Remove the 2 locking tabs 5 Remove the CH Mount Boss and Ground Spring 6 Disconnect the connectors A02 A10 A12 and A16 7 Remove the A Board 7 2 6 Speaker Unit 1 Remove the 2 Speaker Unit 7 2 7 Speaker Bracket 1 Remove the 4 screws 2 Remove the Speaker Bracket ...

Page 20: ...move the 3 screws E 3 Remove the Metal CH Frame P Up P Btm A 7 2 9 LCD MTG Side and LCD Panel 1 Remove the 6 LCD MTG Side 2 Remove the LCD Panel 7 2 10 K Board 1 Remove the 2 locking tabs 2 Remove the 2 locking tabs 3 Disconnect the connector K10 4 Remove the K Board ...

Page 21: ... point Specification 5 3V TP7501 5 3 0 10V 16V TP7410 TP7411 TP7412 15 5 0 8V 24V TP7511 TP7512 24 1 2V Power Supply Name Measurement Point Specification PNL12V TP4097 12 1 0 8V SUB3 3V TP5400 3 32 0 165V SUB1 1V TP8101 1 14 0 07V SUB1 5V TP8100 1 52 0 05V SUB5V TP5420 5 0 0 25V HDMI3 3V TP8000 3 3 0 16V ...

Page 22: ...22 ...

Page 23: ...OWER_ON USB I F SUB_ON A02 HDMI2 DCDC BL_ON HDMI3 3V SUB5V STB3 3V LED_R SUB3 3V BL_SOS BL_ON L R LED BACK LIGHT MAIN SUB3 3V STB3 3V LCD DRIVER DCDC DCDC Y PB PR BL_SOS SUB_ON LED RM CATS SUB5V POWER SW HDMI1 LED_R OPERATION SWICTH OUT AC DETECT SUB1 5V P3 BL_PWM SUB1 5V NEUTRAL SUB1 2V DCDC STB3 3V JK7101 24V P C A T S SENSOR REG TU_1 8V INPUT FILTER PNL12V 16V L SUB1 1V NAND_I F SUB_AI_3 3V AMP...

Page 24: ...ER PANEL_VCC_ON2 8 CONTROL PANEL KEY 1 ERROR DETCT SW7402 7406 7 3 SUB5V LF7103A LF7104A POWER SW A 3 6 D7102 PANEL12V 1 31 PWM P PNL12V Q7502 CF7102 16V 2 LCD DRIVER Q7501 PHOTO COUPLER LED DRIVE RECTIFIER 8 IC5400 AC DETECT BL_ON LCD PANEL 6 Y 12V 2 7 LVDS_DATA 5V 28 BL_PWM 2 3 3V AV 8 16V 4 1 BL_SOS MAIN A16 10 DCDCEN L LVDS_DATA 20 5 IC5421 5 R 3 PNL12V 10 5VS IC7501 SUB3 3V 1 9 11 AC CORD 12 ...

Page 25: ... C A T S SENSOR IIC_0 SUB1 5V 1 1V AUDIO_OUT IC8101 4 1 1 1 5V OVP SPEAKER_L HDMI1 PANEL_VCC_ON IC5704 ANALOG ASIC MAIN IC8001 STB3 3V IC8200 1 FE_XRST L Rx1 UART 4 4 IIC_2 3 IIC_0 IC5000 DIGITAL AUDIO OUT 7 FE_XRST 4 IC4900 RF IN IEC_OUT TUNER AGC TMDS DATA CLOCK STB3 3V IC6750 6 A C A T S SENSOR IFD IC8454 AGC A12 5 USB1 IC8201 SUB_AI_3 3V USB_I F AUDIO AMP DCDCEN POWER_DET DDC IIC2 DDR3 SUB_ON ...

Page 26: ...26 ...

Page 27: ...gram 11 1 Caution statement 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 11 2 Dressing Wire ...