Panasonic Viera TX-26LE8A Service Manual Download Page 24 | Manualshive

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10 Conductor Views

10.1. A-Board

A-Board (A Side)

TNP4G431

Parts Location

A-Board

A-Board

A-Board

A-Board

IC

IC

IC

IC

IC4006

IC5004

IC4001

IC2005

IC1804

IC5005

IC4005

IC2001

IC1805

IC1102

IC1803

IC5003

IC4004

IC3860

24

TX-26LE8A

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Summary of Contents for Viera TX-26LE8A

Page 1: ...s 1 049 088 1 366 W 768 H Sound Speaker Full range 2 pcs 8 Ω Audio Output 20 W 10 W 10 W 10 THD Headphones M3 3 5 mm Jack 1 PC signals VGA SVGA XGA WVGA WXGA Vertical scanning frequency 60 Hz Receiving Systems Band name SYSTEMS FUNCTIONS 1 PAL B G H 2 PAL I Reception of broadcast transmission and playback from video cassette tape recorders 3 PAL D K 4 SECAM B G 5 SECAM D K 6 SECAM K1 7 NTSC M NTSC...

Page 2: ...ns Temperature 0 C 40 C Humidity 20 80 RH non condensing Connection Terminals AV1 AUDIO L R RCA PIN Type 2 0 5 V rms Input VIDEO RCA PIN Type 1 1 0 V p p 75 Ω AV2 AUDIO L R RCA PIN Type 2 0 5 V rms Input VIDEO RCA PIN Type 1 1 0 V p p 75 Ω COMPONENT Y 1 0 V p p including synchronization PB CB PR CR 0 35 V p p AV3 AUDIO L R RCA PIN Type 2 0 5 V rms Input VIDEO RCA PIN Type 1 1 0 V p p 75 Ω S VIDEO ...

Page 3: ... 20 8 2 SERVICE 2 20 8 3 Self Check Mode 20 8 4 Hotel Mode Adjustment 20 9 Adjustment 23 9 1 Voltage Chart of A Board 23 9 2 Voltage Chart of P board 23 10 Conductor Views 24 10 1 A Board 24 10 2 A Board 25 11 Schematic Diagram 26 11 1 Schematic Diagram Notes 26 11 2 A Board 27 11 3 G Board 37 11 4 K Board 39 11 5 P Board 40 11 6 SW Board 44 11 7 V Board 45 12 Parts Location Mechanical Replacement...

Page 4: ...part on the set and a good earth ground such as a water pipe as shown in Figure 1 3 Use the Leakage Current Tester Simpson 228 or equivalent to measure the potential across the measuring network 4 Check each exposed metallic part and measure the voltage at each point 5 The potential at any point touch current expressed as voltage U1 and U2 do not exceed the following values For AC U1 35 V peak and...

Page 5: ...mbly 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 charges 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 replacemen...

Page 6: ...bF has a higher melting point than that of 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 PbF 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 PbF on the pins or solder area before applying Pb If this is not practical be sur...

Page 7: ...ntrol The screen that will show is represented by Figure 4 3 Press both OFF TIMER button on the remote control and DOWN key button on the control panel Figure 4 4 2 Power LED Blinking Timing Chart 1 Subject Information of LED blinking timing chart 2 Contents When an abonormality has occurred in the unit the protection circuit operates and resets to standby mode At this time the defective block can...

Page 8: ...Turn on the set using the power switch Check that the LED on the front panel is as shown below Green lamp lit Receiving 2 Turn off the power supply using the remote controller and check that the LED is as shown below Red lamp lit Standby 8 TX 26LE8A ...

Page 9: ...cm 5 kgf cm to 8 kgf cm 2 Fix connectors G1 G2 and G3 to AT G board 3 Fix 2 screws to the side of AV bracket assembly Tightening torque should be 100 Ncm to 130 Ncm 10 kgf cm to 13 kgf cm 4 Fix 1 screw to cabinet with power switch PCB bracket Tightening torque should be 100 Ncm to 130 Ncm 10 kgf cm to 13 kgf cm 9 TX 26LE8A ...

Page 10: ...6 Location of Lead Wiring 6 1 Wire Dressing 10 TX 26LE8A ...

Page 11: ...Wire Dressing and Connections CONNECTION 1 2 3 4 5 6 7 8 9 10 11 12 1 INV P 2 2 A 2 P 4 3 A 1 P 3 4 G 3 K 1 5 G 1 A 4 6 G 2 A 5 7 V 1 A 7 8 A 3 SPEAKER L 9 A 3 SPEAKER R 10 P 1 SW 2 11 INV A 6 11 TX 26LE8A ...

Page 12: ...7 Disassembly for Service 7 1 AC Code dressing for 2 Pin 7 2 AC Code dressing for 3 Pin 12 TX 26LE8A ...

Page 13: ...7 3 Chassis Rail Installation 1 Put pedestal mounting and fix with 4 pcs screw 2 Fix 3 pcs chassis frame and fix 6 pcs screw to bottom and top mounting 13 TX 26LE8A ...

Page 14: ...A bracket 2 Fix 4 screws to VESA bracket Tightening torque should be 100 Ncm to 130 Ncm 10 kgf cm to 13 kgf cm 3 Slot pedestal assembly and fix 4 screws to cabinet Tightening torque should be 100 Ncm to 130 Ncm 10 kgf cm to 13 kgf cm SCREW XTB4 15JFJ 4 pcs SCREW XYN4 F10FJK 4 pcs 14 TX 26LE8A ...

Page 15: ...7 5 Pedestal Assembly Preparation 7 5 1 Pedestal Rotation Base 15 TX 26LE8A ...

Page 16: ...7 5 2 Pedestal Stand Base 7 5 3 Pedestal Stand Cover 16 TX 26LE8A ...

Page 17: ...roperly locked on the PCB 2 Fix LED panel to cabinet with 3 screws Tightening torgue should be 0 5 N m 0 8 N m 5 to 8 kgf cm Screw XTW3 10TFJ 3 pcs 3 Fix wires at cabinet slit and make sure all wires are fully inserted to avoid contact with the pedestal metal 17 TX 26LE8A ...

Page 18: ...ing and LCD side mounting to cabinet assembly 3 Fix screw into LCD top mounting LCD side mounting and LCD bottom mounting Tightening torque should be 100 N cm 130 N cm 10 kgf cm to 13 kgf cm 4 Stick sponges at top mounting and bottom mounting SCREW XTB4 15JFJ 7 pcs SCREW XYN4 F6FJ 6 pcs SPONGE 6 pcs 18 TX 26LE8A ...

Page 19: ...7 8 Back Cover and Model Name Plate Installation 1 Stick model name plate at back cover with serial no 19 TX 26LE8A ...

Page 20: ...ode in service 1 then press the HOLD button on the remote control to enter service 2 8 3 Self Check Mode 1 Press the MENU button on the remote control and the DOWN button on the LCD panel 2 Press the NORMALIZE button on the remote control to Exit 8 4 Hotel Mode Adjustment 1 Press the VOLUME DOWN button on the TV panel and simultaneously press the AV button on the remote control 3 times to enter Ho...

Page 21: ...21 TX 26LE8A ...

Page 22: ...22 TX 26LE8A ...

Page 23: ...0 25 V STB_3 3 V TP1835 3 30 0 17 V 3 30 0 17 V STB_1 8 V TP1837 1 89 0 09 V 1 89 0 09 V SOUND_13 3 V TP1816 13 3 0 6 V 9 2 Voltage Chart of P board Power Name Test point Specification ON STANDBY MAIN_5 V TPP008 5 0 0 25 V PANEL_12 V TPP005 12 0 0 50 V BT_30 V TPP015 30 0 V 2 0 V 24 V TPP007 24 0 1 2 V MAIN_8 V TPP006 8 15 V 0 4 V STB_6 V TPP013 6 0 V 0 25 V 6 0 V 0 25 V STB_3 3 V TPP009 3 30 0 17...

Page 24: ... Views 10 1 A Board A Board A Side TNP4G431 Parts Location A Board A Board A Board A Board IC IC IC IC IC4006 IC5004 IC4001 IC2005 IC1804 IC5005 IC4005 IC2001 IC1805 IC1102 IC1803 IC5003 IC4004 IC3860 24 TX 26LE8A ...

Page 25: ...10 2 A Board A Board B Side TNP4G431 Parts Location A Board IC IC5002 IC5001 IC4003 25 TX 26LE8A ...

Page 26: ...rrow 9 Indicates the major signal flow Video Audio 10 This schematic diagram is the latest at the time of printing and subject to change without notice Remarks 1 The Power Circuit contains a circuit area which uses a separate power supply to isolate the earth connection The circuit is defined by HOT and COLD indications in the schematic diagram Take the following precautions All circuits except th...

Page 27: ...11 2 A Board 11 2 1 A Board 1 10 1A 2A 3A 4A 5A 6A 7A 8A 9A 27 TX 26LE8A ...

Page 28: ...11 2 2 A Board 2 10 1B 2B 3B 4B 5B 6B 7B 8B 9B 1A 2A 3A 4A 5A 6A 7A 8A 9A 28 TX 26LE8A ...

Page 29: ...11 2 3 A Board 3 10 1C 2C 3C 4C 5C 1B 2B 3B 4B 5B 6B 7B 8B 9B 29 TX 26LE8A ...

Page 30: ...11 2 4 A Board 4 10 1D 2D 3D 4D 5D 6D 7D 8D 9D 1C 2C 3C 4C 5C 30 TX 26LE8A ...

Page 31: ...11 2 5 A Board 5 10 1E 2E 3E 4E 5E 6E 7E 9E 8E 1D 2D 3D 4D 5D 6D 7D 8D 9D 31 TX 26LE8A ...

Page 32: ...11 2 6 A Board 6 10 1F 2F 3F 4F 5F 6F 1E 2E 3E 4E 5E 6E 7E 9E 8E 32 TX 26LE8A ...

Page 33: ...11 2 7 A Board 7 10 1G 2G 3G 4G 5G 1F 2F 3F 4F 5F 6F 33 TX 26LE8A ...

Page 34: ...11 2 8 A Board 8 10 1H 2H 3H 4H 5H 6H 7H 8H 1G 2G 3G 4G 5G 34 TX 26LE8A ...

Page 35: ...11 2 9 A Board 9 10 1I 2I 3I 4I 5I 6I 7I 8I 9I 1H 2H 3H 4H 5H 6H 7H 8H 35 TX 26LE8A ...

Page 36: ...11 2 10 A Board 10 10 1I 2I 3I 4I 5I 6I 7I 8I 9I 36 TX 26LE8A ...

Page 37: ...11 3 G Board 11 3 1 G Board 1 2 1A 2A 3A 4A 37 TX 26LE8A ...

Page 38: ...11 3 2 G Board 2 2 1A 2A 3A 4A 38 TX 26LE8A ...

Page 39: ...11 4 K Board 11 4 1 K Board 1 1 39 TX 26LE8A ...

Page 40: ...11 5 P Board 11 5 1 P Board 1 4 1A 2A 3A 4A 5A 6A 7A 40 TX 26LE8A ...

Page 41: ...11 5 2 P Board 2 4 1B 2B 3B 4B 5B 6B 7B 8B 1A 2A 3A 4A 5A 6A 7A 41 TX 26LE8A ...

Page 42: ...11 5 3 P Board 3 4 1C 2C 3C 4C 5C 6C 1B 2B 3B 4B 5B 6B 7B 8B 42 TX 26LE8A ...

Page 43: ...11 5 4 P Board 4 4 1C 2C 3C 4C 5C 6C 43 TX 26LE8A ...

Page 44: ...11 6 SW Board 11 6 1 SW Board 1 1 44 TX 26LE8A ...

Page 45: ...11 7 V Board 11 7 1 V Board 1 4 1A 2A 3A 45 TX 26LE8A ...

Page 46: ...11 7 2 V Board 2 4 1B 4B 2B 3B 5B 1A 2A 3A 46 TX 26LE8A ...

Page 47: ...11 7 3 V Board 3 4 1C 2C 3C 4C 5C 6C 1B 4B 2B 3B 5B 47 TX 26LE8A ...

Page 48: ...11 7 4 V Board 4 4 1C 2C 3C 4C 5C 6C 48 TX 26LE8A ...

Page 49: ...12 Parts Location Mechanical Replacement Parts List 12 1 Parts Location 49 TX 26LE8A ...

Page 50: ...13 Packing Exploded View TX 26LE8A 50 ...

Page 51: ...14 Replacement Parts List 51 TX 26LE8A ...

Page 52: ...1C104K C 0 1UF K 16V C1951 ECJ1VB1H104K C 0 1UF K 50V C1952 ECJ1VB1H104K C 0 1UF K 50V C1954 EEEHB0J101P E 100UF 6 3V C2067 ECJ1VB1A105K C 1UF K 10V C2068 ECJ1VB1A105K C 1UF K 10V C2101 ECJ2FB1E105K C 1UF K 25V C2102 ECJ2FB1E105K C 1UF K 25V C2103 ECJ2FB1E105K C 1UF K 25V C2106 ECJ2FB1E105K C 1UF K 25V C2109 ECJ2FB1E105K C 1UF K 25V C2110 ECJ2FB1E105K C 1UF K 25V C2111 ECJ2FB1E105K C 1UF K 25V C21...

Page 53: ...J1060004 C 10UF 6 3V C4100 F1G1A1040006 C 0 1UF 10V C4101 F1G1A1040006 C 0 1UF 10V Ref No Part No Part Name Description Remarks C4102 F1J0J1060004 C 10UF 6 3V C4103 ECJ0EC1H120J C 12PF 50V C4104 ECJ0EC1H220J C 12PF 50V C4105 ECJ0EC1H220J C 12PF 50V C4109 ECJ1VB1C104K C 0 1UF K 16V C4110 ECJ2FB1A335K C 3 3UF 10V C4111 F1J0J1060004 C 10UF 6 3V C4112 ECJ1VB1C104K C 0 1UF K 16V C4114 EEFCD0G560ER E 56...

Page 54: ... 50V C856 F2A1V221A470 E 220UF 35V C857 ECJ1VB1H104K C 0 1UF K 50V C858 F2A1C471A537 E 470UF 16V C859 ECQV1H105JM P 1UF J 50V C860 F2A1A102A230 E 1000UF 10V C861 ECJ1VB1H104K C 0 1UF K 50V C862 ECJ1VB1H104K C 0 1UF K 50V C867 F1J0J1060004 C 10UF 6 3V C868 ECJ1VB1H103K C 0 01UF K 50V C871 ECJ1VB1H103K C 0 01UF K 50V Ref No Part No Part Name Description Remarks C872 ECJ1VC1H101J C 100PF J 50V C875 F...

Page 55: ...AZ80750ML DIODE D816 MAZ42400MF DIODE D817 B0HAMM000122 DIODE D818 B0JBSL000026 DIODE Ref No Part No Part Name Description Remarks D819 B0JBSL000026 DIODE D823 B0HAJL000003 DIODE D824 B0JCME000037 DIODE D832 B0JCME000037 DIODE D841 D4EAC6210002 VARISTOR D844 RY24 DIODE D845 AU02A DIODE D847 MA2C700A0F DIODE D851 B0BA02800001 DIODE D852 B0BA02800001 DIODE D853 B0JCNG000003 DIODE D854 B0JANE000006 D...

Page 56: ...0L TRANSISTOR Ref No Part No Part Name Description Remarks Q3807 2SC584500L TRANSISTOR Q4001 2SC584500L TRANSISTOR Q4002 2SA207700L TRANSISTOR Q4003 2SA207700L TRANSISTOR Q4020 2SC584500L TRANSISTOR Q4021 2SC584500L TRANSISTOR Q4049 2SC584500L TRANSISTOR Q4050 2SA207700L TRANSISTOR Q4120 UNR521100L TRANSISTOR Q4121 UNR521100L TRANSISTOR Q4330 2SD0601A0L TRANSISTOR Q4501 2SC584500L TRANSISTOR Q4502...

Page 57: ... 16W R2382 ERJ3GEYJ104 M 100KOHM J 1 16W R2383 ERJ3GEYJ103 M 10KOHM J 1 16W R2384 ERJ3GEY0R00 M 0OHM J 1 16W Ref No Part No Part Name Description Remarks R2500 ERJ3GEY0R00 M 0OHM J 1 16W R2501 ERJ3EKF6801 F 6 8KOHM J 1 10W R2502 ERJ3EKF1202 M 12KOHM F 1 16W R2503 ERJ3EKF2202 M 22KOHM F 1 16W R2504 ERJ3EKF6802 M 68KOHM F 1 16W R3001 ERJ3GEYJ184 M 180KOHM J 1 16W R3002 ERJ3GEYJ184 M 180KOHM J 1 16W ...

Page 58: ...1 M 100OHM J 1 16W R4069 ERJ3GEYJ101 M 100OHM J 1 16W R4071 ERJ3GEYJ103 M 10KOHM J 1 16W Ref No Part No Part Name Description Remarks R4072 ERJ3GEYJ101 M 100OHM J 1 16W R4077 ERJ3GEYJ220 M 22OHM J 1 16W R4078 ERJ3GEYJ102 M 1KOHM J 1 16W R4079 ERJ3GEYJ101 M 100OHM J 1 16W R4080 ERJ3GEYJ220 M 22OHM J 1 16W R4081 ERJ3GEYJ101 M 100OHM J 1 16W R4082 ERJ3GEY0R00 M 0OHM J 1 16W R4089 ERJ3GEYJ151 M 150OHM...

Page 59: ...W R4338 ERJ3GEYJ680 M 68OHM J 1 16W R4501 ERJ3GEYJ473 M 47KOHM J 1 16W R4502 ERJ3GEYJ103 M 10KOHM J 1 16W Ref No Part No Part Name Description Remarks R4504 ERJ3GEYJ103 M 10KOHM J 1 16W R4505 ERJ3GEYJ103 M 10KOHM J 1 16W R4506 ERJ3GEYJ473 M 47KOHM J 1 16W R4750 ERJ2GE0R00X F 0OHM J 1 10W R4751 ERJ2GE0R00X F 0OHM J 1 10W R4752 ERJ2GE0R00X F 0OHM J 1 10W R4753 ERJ2GE0R00X F 0OHM J 1 10W R4754 ERJ2GE...

Page 60: ... 10W R829 ERJ6GEYJ683 M 68KOHM J 1 10W R830 ERJ6GEYJ103 M 10KOHM J 1 10W R831 ERJ6GEYJ752 M 7 5KOHM J 1 10W Ref No Part No Part Name Description Remarks R832 ERJ6GEYJ564 M 560KOHM J 1 10W R833 ERJ6GEYJ564 M 560KOHM J 1 10W R834 ERJ6GEYJ105 M 1MOHM J 1 10W R835 ERG1SJ223E M 2 2KOHM J 1W R836 ERG1SJ223E M 2 2KOHM J 1W R837 ERG1SJ103E M 2 2KOHM J 1W R838 ERJ6GEYJ514 M 510KOHM J 1 10W R839 ERJ6GEYJ474...

Page 61: ...M J 1 16W JS1805 ERJ3GEY0R00 M 0OHM J 1 16W JS1806 ERJ3GEY0R00 M 0OHM J 1 16W JS1808 ERJ2GE0R00X FIXED RESISTOR JS1923 ERJ3GEY0R00 M 0OHM J 1 16W JS1925 ERJ3GEY0R00 M 0OHM J 1 16W JS2004 ERJ6GEY0R00 M 0OHM J 1 10W JS2005 ERJ6GEY0R00 M 0OHM J 1 10W JS2011 ERJ6GEY0R00 M 0OHM J 1 10W JS2012 ERJ6GEY0R00 M 0OHM J 1 10W JS2130 ERJ3GEY0R00 M 0OHM J 1 16W JS2131 ERJ3GEY0R00 M 0OHM J 1 16W JS2132 ERJ3GEY0R...

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