TX-L47FT60B, TX-LR47FT60 — Panasonic TV Service Manual (repair manual)

Model
TX-L47FT60B TX-LR47FT60
Pages
88
Size
15.11 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LA42 CHASSIS
File
tx-l47ft60b-tx-lr47ft60.pdf
Date

View Panasonic TX-L47FT60B / TX-LR47FT60 Service Manual online

Service Manual
LCD Television 
TX-L47FT60B
 
    TX-LR47FT60 
                                                                                                                                                                         
     
LA42 Chassis
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
and 
ORDER No. PCZ1304103CE 
 
There are special components used in this equipment which are important for safety. These parts are marked       in the  
Schematic Diagrams, Circuit Board Diagrams, Explorer Views and Replacement Parts List. It is essential that these 
critical parts 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
Warning 
CONTENTS
SAFETY PRECAUTIONS ........................................... 3 
 GENERAL 
GUIDE LINES...................................... 3 
 
TOUCH – CURRENT CHECK............................... 3 
PREVENTION OF ELECTROSTATIC DISCHARGE 
(ESD) TO ELECTROSTATICALLY SENSITIVE (ES) 
DEVICES .................................................................... 4 
ABOUT LEAD FREE SOLDER (PBF)......................... 5 
 SUGGESTED 
PB 
FREE SOLDER........................ 5 
SERVICE NAVIGATION ............................................. 6 
 CHASSIS 
BOARD LAYOUT.................................. 6 
SERVICE HINTS ........................................................ 7 
APPLICABLE SIGNALS.............................................. 8 
SPECIFICATIONS ...................................................... 9 
TECHNICAL DESCRIPTION ................................….11 
 
SPECIFICATION OF KEY FOR CI PLUS,  
 
DTCP-IP, ONE-TO-ONE, NETFLIX,  
 WIDEVINE, HDCP .............................................. 11 
 GENERAL 
INFORMATION ................................. 11    
 REPLACEMENT 
OF ICS..................................... 11 
 MODEL 
AND KEYS ............................................ 11 
SETTING INSPECTION............................................ 12 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SERVICE MODE FUNCTION ................................... 13 
SERVICE  ................................................................ 14 
SERVICE TOOL MODE............................................ 15 
HOTEL MODE .......................................................... 16 
DATA COPY BY USB MEMORY .............................. 17 
DATA COPY FROM TV SET TO USB MEMORY..... 18 
DATA COPY FROM USB MEMORY TO TV SET..... 19 
OPTION BYTES DESCRIPTION .............................. 20 
SELF CHECK ........................................................... 21 
POWER LED BLINKING TIMING CHART ................ 22 
LCD PANEL TEST MODE ........................................ 22 
ADJUSTMENT METHOD ......................................... 23 
WIRING DIAGRAM ................................................... 24 
BLOCK DIAGRAM (1 OF 2)...................................... 25 
PARTS LOCATION................................................... 27 
LOCATION OF LEAD WIRING ................................. 29 
REPLACEMENT PARTS LIST NOTE....................... 30 
REPLACEMENT PARTS LIST.................................. 31 
SCHEMATIC DIAGRAMS NOTE.............................. 56 
A-BOARD (1 OF 22) SCHEMATIC DIAGRAM.......... 57 
P-BOARD (1 OF 2) SCHEMATIC DIAGRAM............ 79 
K-BOARD SCHEMATIC DIAGRAM .......................... 81 
GK-BOARD SCHEMATIC DIAGRAM ....................... 82 
CONDUCTOR VIEWS .............................................. 83 
2
Safety Precautions
General Guide Lines
1.  When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated 
or damaged by the short circuit. 
2.  After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly 
installed. 
3.  After servicing, make the following touch current checks to prevent the customer from being exposed to shock hazards. 
4.  Always ensure cover label TBM4GU113 is correctly replaced before returning to customer (see Fig.1). 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
Touch-Current Check 
1.  Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check. 
2.  Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth 
ground such as a water pipe, as shown in Fig. 2. 
3.  Use 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.  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 (peak) for a. c. correspond to the value 70 mA (peak) a. c. for frequencies greater than 100 
kHz. 
7.  In case a measurement is out of the limits specified, there is a possibility of a shock hazard, and the equipment should 
be repaired and rechecked before it is returned to the customer. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Fig. 2 
TO 
APPLIANCES 
EXPOSED 
METAL PARTS 
Resistance values in ohms (
) 
R
0
=500
 
R
S
=1500
 
C
S
=0.22
F 
10k
 
0.022
F 
COLD 
WATER PIPE 
(EARTH GROUND)
 
V: Voltmeter or oscilloscope 
  (r.m.s. or peak reading) 
Measuring network for TOUCH CURRENTS 
Input resistance: 
1M 
Input capacitance:
200pF 
Frequency range: 15Hz to 1MHz and d.c.respectively 
NOTE – Appropriate measures should be taken to obtain the correct value in case of non-sinusoidal waveforms 
U
2
 (V) 
Fig. 1 
U
1
 (V) 
3
Prevention of Electrostatic Discharge (ESD) to Electrostatically 
Sensitive (ES) Devices 
 
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are 
called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect 
transistors and semiconductor "chip" components. The following techniques should be used to help reduce the incidence of 
component damage caused by electrostatic discharge (ESD). 
 
1.  Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on 
your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD 
wrist strap, which should be removed for potential shock reasons prior to applying power to the unit under test. 
2.  After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as 
aluminum foil, to prevent electrostatic charge build up or exposure 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 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, aluminum foil 
or comparable conductive material). 
7.  Immediately before removing the protective material from the leads of a replacement ES device, touch the protective 
material to the chassis or circuit assembly into which the device will be installed. 
Caution
  
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions. 
 
8.  Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the 
brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity 
(ESD) sufficient to damage an ES device). 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
There are special components used in this equipment which are important for safety. 
These parts are marked by      in schematic diagrams, exploded views and replacement parts list. It is essential that 
these critical parts 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
4
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Here you can view online or download Panasonic TX-L47FT60B / TX-LR47FT60 Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Panasonic TX-L47FT60B / TX-LR47FT60 TV. Information contained in Panasonic TX-L47FT60B / TX-LR47FT60 service manual (repair manual) typically includes:

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  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).