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Service Manual
Service Manual
Specifications
Specifications
Information in brackets [ ] refers to model 47"
Information in brackets [ ] refers to model 47"
Power Source:
Power Source:   
Rated Power Consumption:
Rated Power Consumption:
Stand-by Power Consumption: 0.20W
Stand-by Power Consumption:
 Aer
 Aer ial
ial Imp
Receiving System: 
Receiving System:
 
 
220-240V AC,
220-240V
116W [129W]
116W [129W]
0.20W
Imp edan
edan ce:
ce:    
75
75
 unbalanced, Coaxial Type
 unbalanced, Coaxial Type
 
DT50
DT50B ( UK
DVB-T / / T2
DVB-T
DVB-S/S2
DVB-S/S2
PAL
PAL I I
PAL 525/60
PAL
M.NTSC
M.NTSC
NTSC
NTSC
AC, 50
50 / / 60Hz
60Hz
B ( UK ) )
T2
Digital terrestrial
Digital
terrestrial services
Freesat services
Freesat
services via
Receiver frequency range – 950 MHz to 2,150MHz
Receiver frequency range – 950 MHz to 2,150MHz
LNB Power and Polarisation – Vertical: +13V
LNB Power and Polarisation – Vertical: +13V
22 kHz Tone – Frequency: 22kHz ± 2kHz
22 kHz Tone – Frequency: 22kHz ± 2kHz
 Amplitude: 0.6V ± 0.2V
 Amplitude: 0.6V ± 0.2V
Symbol Rate – Max. 30MS/s
Symbol Rate – Max. 30MS/s
FEC Mode – 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10
FEC Mode – 1/2, 3/5,
Demodulation – QPSK, 8PSK
Demodulation – QPSK, 8PSK
   
Not available for 
Not available for 
UHF
UHF E21-E68
E21-E68
525/60
(AV only)
(AV
only)
(AV only)
(AV
only)
(AV only)
(AV
only)   
ORDER No. PCZ1203053CE
ORDER No. PCZ1203053CE
LCD Television
LCD Television
TX-L42DT50B
TX-L42DT50B
TX-L42DT50Y
TX-L42DT50Y
TX-LR42DT50
TX-LR42DT50
TX-L47DT50B
TX-L47DT50B
TX-L47DT50Y
TX-L47DT50Y
TX-LR47DT50
TX-LR47DT50
LA35
LA35 C
services
(MPEG2 and MPEG4-AVC(H.264))
(MPEG2 and MPEG4-AVC(H.264))
via Satellite
Satellite dish
dish input
input
Horizontal: +18V
Horizontal: +18V
Current: Max. 500mA (overload protection)
Current: Max. 500mA (overload protection)
2/3, 3/4, 4/5, 5/6, 8/9, 9/10
DiSEqC control
DiSEqC control   
© © Panasonic Corporation
Panasonic Corporation 2012.
Unauthorized copying
Unauthorized copying
distribution is a violation of law.
distribution is a violation of law.
 
 
Chassi
hassis
s
   
2012. 
 
   
and
and

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Summarization of Contents

Television Specifications
Power Source & Consumption
Details on the TV's power requirements, including rated and standby consumption.
Aerial & Receiving System
Information on aerial impedance and supported receiving systems for TV signals.
Safety Precautions
General Guidelines & Touch Current Check
Procedures for safe servicing, including lead dress and touch current testing.
Electrostatic Discharge (ESD) Prevention
Techniques to prevent damage to sensitive electronic components from static electricity.
Important Safety Notice
Critical notice regarding the use of manufacturer-specified parts for safety.
Solder Information
Lead-Free Solder (PbF) Details
Information about lead-free solder composition and its handling requirements.
Suggested Lead-Free Solder Types
Recommendations for purchasing compatible lead-free solder for repairs.
Applicable Signal Formats
Component and HDMI Signals
Details on supported signal timings for Component and HDMI inputs.
PC Input Signal Compatibility
Compatibility information for PC signals via D-sub and HDMI interfaces.
Service and Maintenance Hints
Backcover and Pedestal Removal
Step-by-step instructions for removing the TV's back cover and pedestal assembly.
Chassis Component Layout
Board Identification and Functions
Overview of the main circuit boards and their primary functions within the chassis.
Lead Wiring Identification
Diagram and labels for identifying internal cable connections and their routing.
Technical System Description
Key Specifications (CI Plus, etc.)
Details on key specifications for CI Plus, DTCP-IP, Widevine, and Netflix support.
IC Replacement Procedures
Procedures for replacing integrated circuits like LDA4 and EEPROM, including self-check.
Model Feature Key Matrix
Table showing model compatibility with various feature keys like CI Plus and Widevine.
USB HDD Recording Function
Information on the TV's capability to record digital programs to a USB HDD.
System Inspection and Voltage Checks
A-Board Voltage Confirmation
Specifies test points and expected voltage values for the A-board during inspection.
Service Mode Operations
Entering and Exiting Service Mode
Instructions on how to access and leave the TV's service menu using the remote.
Service Tool Mode Diagnostics
Accessing Service Tool Mode
Steps to enter the service tool mode and access diagnostic functions.
SOS History & Power Status
Displaying SOS history from LED blinking and power on/off statistics.
Data Backup and Transfer (SD Card)
Board Replacement Data Copy
Procedure to copy TV settings and data to an SD card for A-board replacement.
Hotel Unit Data Synchronization
Method to copy TV settings to an SD card for deployment across multiple hotel units.
Adjustment and Calibration Methods
Sub-Contrast and White Balance Adjustment
Procedure for adjusting picture contrast and white balance using specific tools.
Replacement Parts Identification
Safety Notice for Parts Replacement
Critical safety notice emphasizing the use of manufacturer-specified replacement parts.
Retention Time Limited (RTL) Parts
Information regarding parts with limited availability after product discontinuation.

Table of Contents