DOWNLOAD Panasonic TX-42AR400 Service Manual ↓ Size: 6.92 MB | Pages: 69 in PDF or view online for FREE

Model
TX-42AR400
Pages
69
Size
6.92 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / CHASSIS KM25E
File
tx-42ar400.pdf
Date

Panasonic TX-42AR400 Service Manual ▷ View online

TX-42AR400
4
2 Warning
2.1.
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 buildup 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 ham less 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).
TX-42AR400
5
2.2.
About lead free solder (PbF)
Note: Lead is listed as (Pb) in the periodic table of elements.
In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder.
The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).
That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.
This model uses Pb Free solder in it’s manufacture due to environmental conservation issues. For service and repair work, we’d
suggest the use of Pb free solder as well, although Pb solder may be used.
PCBs manufactured using lead free solder will have the PbF within a leaf Symbol PbF stamped on the back of PCB.
Caution
• Pb free 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 this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.
• After applying PbF solder to double layered boards, please check the component side for excess solder which may flow onto the
opposite side. (see figure below)
TX-42AR400
6
3 Service Navigation
3.1.
Service Hint
Board Name
Main Device
Remarks
A BOARD
TUN, EEP, SPI, MTK IC
Repairable
P BOARD
Power Supply, Power switch, Keyscan
Repairable
K BOARD
Remote, LED, Luminance Sensor
Repairable
GK BOARD
Power Switch, Keyscan 
Repairable
LD BOARD
LED driver 
Repairable
TX-42AR400
7
4 Specifications
Note
• Design and Specifications are subject to change without notice. Mass and Dimensions shown are approximate.
Power source
AC 220 - 240 V, 50/60 Hz
Power consumption
91 W / 0.35 W
(Rate power / Standby power)
Display panel
Panel
LCD panel (LED backlight)
Visible screen size (diagonal)
106 cm
Display Resolution
1,920 (W) 
 1,080 (H) 
Dimensions (W 
 H  D)
963 mm 
 610 mm  247 mm (With Pedestal)
963 mm 
 566 mm  69 mm (TV only)
Mass 
10.0   (With Pedestal)
8.5   (TV only)
Connection terminals
AV1
SCART (Audio/Video in, Audio/Video out, RGB in)
AV2 (COMPONENT / VIDEO)
VIDEO
RCA PIN Type 
 1, 1.0 V[p-p] (75 )
AUDIO L - R
RCA PIN Type 
 2, 0.5 V[rms]
Y
1.0 V[p-p] (including synchronisation)
P
B
, P
R
±0.35 V[p-p]
HDMI 1 / 2 input
TYPE A Connectors
USB
USB 2.0 TYPE A Connectors
DC 5 V, Max. 500 mA
Card slot
Common Interface slot (complies with CI Plus) 
 1
DIGITAL AUDIO
PCM / Dolby Digital / DTS, Fibre optic
Sound
Audio output
20 W (10 W + 10 W)
Headphones
M3 (3.5 mm) stereo mini Jack 
 1
Receiving systems / Band name
Check the latest information on the 
DVB-C
Digital cable services (MPEG2 and MPEG4-AVC(H.264))
available services at the following web
DVB-T / T2
Digital terrestrial services (MPEG2 and MPEG4-AVC(H.264))
site. (English only)
PAL D, K
http://panasonic.net/viera/support
SECAM D, K
VHF R1 - R2
VHF R3 - R5
VHF R6 - R12
UHF E21 - E69
VHF R6 - R12
UHF E21 - E69
PAL 526/60
Playback of NTSC tape from some PAL Video recorders (VCR)
M.NTSC
Playback from M.NTSC Video recorders (VCR)
NTSC (AV input only)
Playback from NTSC Video recorders (VCR)
Aerial input
VHF / UHF
Operating Conditions
Temperature    
0 °C - 35 °C
Humidity  
20% - 80% RH (non-condensing)
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  • DOWNLOAD Panasonic TX-42AR400 Service Manual ↓ Size: 6.92 MB | Pages: 69 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Panasonic TX-42AR400 in PDF for free, which will help you to disassemble, recover, fix and repair Panasonic TX-42AR400 TV. Information contained in Panasonic TX-42AR400 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.