Panasonic Full Hd Lcd Display Th 42lf20 Operating Instructions

							
          
TH- 42LF20U
TH- 47LF20U
Model No.
Operating Instructions
FULL HD LCD Display
EnglishBefore connecting, operating or adjusting this product,
please read these instructions completely.
Please keep this manual for future reference. 
						

							
2
WARNING: To reduce the risk of electric shock, do not remove cover or back.
No user-serviceable parts inside. Refer servicing to qualifi ed service personnel.
The lightning flash with 
arrow-head within a triangle 
is in  tend  ed to tell the user 
that parts inside the product 
are a risk of electric shock 
to per  sons. The exclamation point within 
a triangle is intended to 
tell the user that important 
operating and servicing 
instructions are in the papers 
with the ap 
pli ance.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING  : To prevent damage which may result in  fi re or shock hazard, do not expose this apparatus to rain 
or mois  ture.
    Do not place containers with water ( fl ower vase, cups, cosmetics, etc.) above the set. 
    (including on shelves above, etc.)
WARNING :   1)  To prevent electric shock, do not remove cover. No user serviceable parts inside. Refer servicing to 
quali fi ed service personnel.
    2)  Do not remove the grounding pin on the power plug. This apparatus is equipped with a three pin  grounding-type power plug. This plug will only  fi t a grounding-type power outlet. This is a safety fea  ture. 
If you are unable to insert the plug into the outlet, contact an electri\
cian.
      Do not defeat the purpose of the grounding plug.
As an ENERGY STAR® Partner, Panasonic has determined that this product meets the 
ENERGY STAR® guidelines for energy ef fi ciency. 
						

							
3
Important Safety Instructions
  1) Read these instructions.
  2) Keep these instructions.
  3) Heed all warnings.
  4) Follow all instructions.
  5) Do not use this apparatus near water.
  6) Clean only with dry cloth.
  7) Do not block any ventilation openings. Install in accordance with the ma\
nufacturer’s instructions.
  8) Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including ampli fi ers) that produce heat.
  9) Do not defeat the safety purpose of the polarized or grounding-type plug\
. A polarized plug has two blades with one  wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the 
third prong are provided for your safety. If the provided plug does not  fi t into your outlet, consult an electrician for 
replacement of the obsolete outlet.
  10) Protect the power cord from being walked on or pinched particularly at p\
lugs, convenience receptacles, and the  point where they exit from the apparatus.
11)  Only use attachments / accessories speci fi ed by the manufacturer.
12) Use only with the cart, stand, tripod, bracket, or table speci fi ed by the manufacturer, or sold with 
the apparatus. When a cart is used, use caution when moving the cart / a\
pparatus combination 
to avoid injury from tip-over.
13) Unplug this apparatus during lightning storms or when unused for long pe\
riods of time.
14) Refer all servicing to quali fi ed service personnel. Servicing is required when the apparatus has been \
damaged 
in any way, such as power-supply cord or plug is damaged, liquid has been spilled \
or objects have fallen into the 
apparatus, the apparatus has been exposed to rain or moisture, does not \
operate normally, or has been dropped.
15) To prevent electric shock, ensure the grounding pin on the AC cord power plug is securely connected. 
						

							
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Table of Contents
Dear Panasonic Customer
Welcome to the Panasonic family of customers. We hope that you will have many years of enjoyment 
from your new LCD Display.
To obtain maximum benefit from your set, please read these Instructions before making any adjustments, 
and retain them for future reference.
Retain your purchase receipt as well, and record the model number and serial number of your set in the 
space provided on the rear cover of these instructions.
Visit our Panasonic Web Site          http://panasonic.net
Important Safety Instructions 
.................................. 3
FCC STATEMENT ...................................................... 5
Safety Precautions ................................................... 6
Maintenance ............................................................\
.. 7
Accessories ............................................................\
.. 8 Accessories Supplied .............................................. 8
Remote Control Batteries ........................................ 8
Connections ............................................................\
.. 9 AC cord connection and  fi xing, cable  fi xing ............. 9
Video equipment connection ................................... 9
VIDEO and COMPONENT / RGB IN connection ..... 10
HDMI connection ....................................................11
DVI-D IN connection ...............................................11
PC Input Terminals connection .............................. 12
SERIAL Terminals connection ............................... 13
Power ON / OFF ...................................................... 14
Selecting the input signal ...................................... 16
Basic Controls ........................................................ 17
ASPECT Controls ................................................... 19
Digital Zoom ............................................................ 20
On-Screen Menu Displays ..................................... 21
Adjusting POS. /SIZE ............................................. 23
PICTURE Adjustments ........................................... 25 ADVANCED SETTINGS ........................................ 26
SOUND Adjustment ................................................ 27
PRESENT TIME SETUP / SET UP TIMER .............. 28 PRESENT TIME SETUP ....................................... 28
SET UP TIMER ..................................................... 29
SCREENSAVER (For preventing image retention) .... 30
Setup of SCREENSAVER Time ............................ 31
WOBBLING  .............................................................. 31
Reduces power consumption ............................... 32
Customizing the Input labels  ................................. 33
Selecting the On-Screen Menu Language  ............ 34
Customizing the On-Screen Menu Display .......... 34
SET UP for MULTI DISPLAY ................................... 35 How to setup MULTI DISPLAY .............................. 35
SET UP for Input Signals ....................................... 37 COMPONENT / RGB IN SELECT ......................... 37
SIGNAL menu ....................................................... 38
3D Y/C FILTER ...................................................... 38
COLOR SYSTEM .................................................. 39
3:2 PULLDOWN .................................................... 39
XGA MODE ........................................................... 39
NOISE REDUCTION ............................................. 40
SYNC ...................................................................\
. 40
Input signal display ................................................ 41
Options Adjustments ............................................. 42
Troubleshooting ..................................................... 44
Applicable input signals ........................................ 45
Shipping condition ................................................. 46
Speci fi cations ......................................................... 47 
						

							
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This equipment has been tested and found to comply with the limits for a\
 Class B digital device, pursuant to Part 
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmf\
ul interference in a 
residential installation. This equipment generates, uses and can radiate radio frequency energy an\
d, if not installed 
and used in accordance with the instructions, may cause harmful interfer\
ence to radio communications. However, 
there is no guarantee that interference will not occur in a particular i\
nstallation. If this equipment does cause harmful 
interference to radio or television reception, which can be determined b\
y turning the equipment off and on, the user 
is encouraged to try to correct the interference by one or more of the f\
ollowing measures:• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced technician for help.
This device complies with Part15 of the FCC Rules. Operation is subject \
to the following two conditions:(1) This 
device may not cause harmful interference, and (2) this device must ac\
cept any interference received, including 
interference that may cause undesired operation.
FCC CAUTION: 
To assure continued compliance, follow the attached installation instruct\
ions and use only shielded interface 
cables when connecting to computer or peripheral devices. Any changes or modi fi cations not expressly 
approved by Panasonic Corp. of North America could void the users authority to operate this device.
FCC Declaration of Conformity
Model No. TH-42LF20U, TH-47LF20U
  Responsible Party:  Panasonic Corporation of North America
      Three Panasonic Way 2F-5, Secaucus, NJ 07094
Contact Source:  Panasonic Solutions Company
      Panasonic Plasma Concierge 1-800-973-4390
CANADIAN NOTICE:
This Class B digital apparatus complies with Canadian ICES-003.
Note:
Image retention may occur. If you display a still picture for an extended period, the image might\
 remain on the screen. 
However, it will disappear after a while.
Trademark Credits
• VGA is a trademark of International Business Machines Corporation.
• Macintosh is a registered trademark of Apple Inc., USA.
• SVGA, XGA, SXGA and UXGA are registered trademarks of the Video Electronics Standard Association.
  Even if no special notation has been made of company or product trademar\
ks, these trademarks have been fully  respected.
• HDMI, the HDMI Logo, and High-De fi nition Multimedia Interface are trademarks or registered trademarks of H\
DMI 
Licensing LLC in the United States and other countries.
FCC STATEMENT 
						

							
6
Safety Precautions
This LCD Display is for use only with the following optional accessories\
. Use with any other type of optional 
accessories may cause instability which could result in the possibility \
of injury.  
(All of the following accessories are manufactured by Panasonic Corpora\
tion.)
   CAUTION
 
 When using the LCD Display
Do not bring your hands, face or objects close to the 
ventilation holes of the Display.
• 
Top of the Display is usually very hot due to the high temperature 
of exhaust air being released through the ventilation holes. 
Burns or personal injuries can happen if any body parts are 
brought too close. Placing any object near the top of the display 
could also result in heat damages to the object as well as to 
the Display if its ventilation holes are blocked.
Be sure to disconnect all cables before moving the 
Display.
• 
Moving the Display with its cables attached might damage 
the cables which, in turn, can cause  fi re or electric shock.
Disconnect the power plug from the wall outlet as a 
safety precaution before carrying out any cleaning.
•  Electric shocks can result if this is not done. Clean the power cable regularly to prevent it from 
becoming dusty.
•  Built-up dust on the power cord plug can increase humidity which might damage the insulation and cause  fi re. Unplug 
the cord from the wall outlet and clean it with a dry cloth.
Note:
Image retention may occur. If you display a still picture for an 
extended period, the image might remain on the screen. However, 
it will disappear after a while.
• Pedestal ................................................... TY-STLF20
Always be sure to ask a quali fi ed technician to carry out set-up.
Small parts can present choking hazard if accidentally swallowed. Keep s\
mall parts away from young children. Discard 
unneeded small parts and other objects, including packaging materials an\
d plastic bags/sheets to prevent them from being 
played with by young children, creating the potential risk of suffocation. 
						

							
7
Safety Precautions
WARNING 
The front of the display panel has been specially treated. Wipe the panel surface gently using only a cleaning 
cloth or a soft, lint-free cloth.
• 
If the surface is particularly dirty, wipe with a soft, lint-free cloth which has been soaked in pure water \
or water in which n eutral 
detergent has been diluted 100 times, and then wipe it evenly with a dry\
 cloth of the same type until the surface is dry.
•  Do not scratch or hit the surface of the panel with  fi ngernails or other hard objects, otherwise the surface may become 
damaged. Furthermore, avoid contact with volatile substances such as ins\
ect sprays, solvents and thinner, otherwise 
the quality of the surface may be adversely affected.
If the cabinet becomes dirty, wipe it with a soft, dry cloth. •  If the cabinet is particularly dirty, soak the cloth in water to which a small amount of neutral detergent h\
as been added and then wring the cloth dry. Use this cloth to wipe the cabinet, and then wipe it dry with a dry cl\
oth.
•  Do not allow any detergent to come into direct contact with the surface \
of the Display. If water droplets get inside the  unit, operating problems may result.
•  Avoid contact with volatile substances such as insect sprays, solvents an\
d thinner, otherwise the quality of the cabinet  surface may be adversely affected or the coating may peel off. Furthermore, do not leave it for long periods in contact 
with articles made from rubber or PVC.
Maintenance
 Setup
Do not place the Display on sloped or unstable 
surfaces. •  The Display may fall off or tip over.
Do not place any objects on top of the Display. • 
If water spills onto the Display or foreign objects get inside it, 
a short-circuit may occur which could result in  fi  re or electric 
shock. If any foreign objects get inside the Display, please 
consult an Authorized Service Center.
Do not cover the ventilation holes. •  Doing so may cause the Display to overheat, which can cause  fi re or damage to the Display.
Transport only in upright position! •  Transporting the unit with its display panel facing upright or downward may cause damage to the internal circuitry.
For suf fi cient ventilation;
Leave a space of 3 
15/16” (10 cm) or more at the top, left 
and right, and 1 31/32” (5 cm) or more at the rear, and also 
keep the space between the bottom of the display and 
the  fl oor surface.
Cautions for Wall Installation
• Wall installation should be performed by an installation  professional. Installing the Display incorrectly may lead to an 
accident that results in death or serious injury. Furthermore, 
when installing on a wall, a UL standard certi fi ed  wall 
hanging bracket (VESA 400 × 400) must be used.
• When installing the Display vertically, be sure to install  the power switch onto the bottom of the Display.
An apparatus with CLASS I construction shall be 
connected to a mains socket outlet with a protective 
earthing connection.
 AC Power Supply Cord
The Display is designed to operate on 110 - 127 V AC, 
50/60 Hz.
Ensure that the mains plug is easily accessible. Do not use any power supply cord other than that 
provided with this unit.
•  Doing so may cause  fi re or electric shocks.
Securely insert the power cord plug as far as it will go.• If the plug is not fully inserted, heat may be generated 
which could cause  fi re. If the plug is damaged or the 
wall socket plate is loose, they should not be used.
Do not handle the power cord plug with wet hands. •  Doing so may cause electric shocks.
Do not do anything that might damage the power cable. 
When disconnecting the power cable, hold the plug, 
not the cable. •  Do not make any modi fi cations, place heavy objects on, 
place near hot objects, heat, bend, twist or forcefully 
pull the power cable. Doing so may cause damage to 
the power cable which can cause  fi re or electric shock. 
If damage to the cable is suspected, have it repaired at 
an Authorized Service Center.
If the Display will not be used for a long period of time, 
unplug the power cord from the wall outlet.
 If problems occur during use
If a problem occurs (such as no picture or no sound), 
or if smoke or an abnormal odor is detected from the 
Display, unplug the power cord immediately. • Continuous use of the Display under these conditions might cause  fi re or permanent damage to the unit. 
Have the Display evaluated at an Authorized Service 
Center. Services to the Display by any unauthorized 
personnel are strongly discouraged due to its high 
voltage dangerous nature.
If water or foreign objects get inside the Display, if the 
Display is dropped, or if the cabinet becomes damaged, 
disconnect the power cord plug immediately. • A short may occur, which could cause  fi re. Contact an 
Authorized Service Center for any repairs that need to be 
made. 
						

							
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+
-+
-
Accessories
Requires two AA batteries.2.  Insert batteries - note correct 
polarity (+ and -).
  Precaution on battery use
Incorrect installation can cause battery leakage and corrosion that will\
 damage the remote control transmitter.
Disposal of batteries should be in an environment-friendly manner.
Observe the following precautions:
1. Batteries should always be replaced as a pair. Always use new batteries when replacing the old set.
2. Do not combine a used battery with a new one.
3. Do not mix battery types (example: “Zinc Carbon” with “Alkalin\
e”).
4. Do not attempt to charge, short-circuit, disassemble, heat or burn used \
batteries.
5. Battery replacement is necessary when the remote control acts sporadical\
ly or stops operating the Display.
6. Do not burn or breakup batteries.
    Batteries must not be exposed to excessive heat such as sunshine,  fi re or the like. 3. Replace the cover.
Accessories Supplied
Check that you have the Accessories and items shown
Operating
Instruction bookRemote Control Transmitter
N2QAYB000535Batteries for the 
Remote Control 
Transmitter
(AA Size × 2)
Remote Control Batteries
“AA” size
Helpful Hint:
For frequent remote control users, replace old batteries with Alkaline batteries for longer life.
1.  
Pull and hold the hook, then 
open the battery cover. CD-ROM
(Operating 
instructions)
AC cord 
						

							
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Video equipment connection
Plug the AC cord into the display unit.
Plug the AC cord until it clicks.
Note:
Make sure that the AC cord is locked on 
both the left and right sides.
AC cord fi xing
Unplug the AC cord
Unplug the AC cord pressing the 
two knobs.
Note:
When disconnecting the AC cord, be 
absolutely sure to disconnect the AC 
cord plug at the socket outlet  fi rst.
Cable  fi xing
Fix the cable in place using the bead band attached to the display.
AC cord connection and  fi xing, cable  fi xing
123Remove the bead band
Bundle the cables Attach the bead band
Bead band  Remove
Bundle the cables
Stopper
Pass through to 
the back
Connections
AV IN
  HDMI1, HDMI2
  HDMI Input Terminal
  (see page 11) COMPONENT/RGB IN
Component/RGB Video 
Input Terminal
(see page 10)
DVI-D IN
DVI-D Input Terminal
(see page 11)
SERIAL
Control the Display by 
connecting to PC.
(see page 13) PC IN
PC Input Terminal
(see page 12)
AV IN
  VIDEO
  
Composite Video Input Terminal
  S-VIDEO
   S-VIDEO Input Terminal
  (see page 10) 
						

							
RLR
L
AUDIO OUT
AUDIO OUT RGB OUTY P
B PR OUT
VIDEO OUT
S VIDEO OUT
Notes: 
• 
Change the “COMPONENT/RGB-IN SELECT” setting in the “SETUP” 
menu to “COMPONENT” (when COMPONENT signal connection) 
or “RGB” (when RGB signal connection). (see page 37)
•  Accepts only RGB signals with “SYNC ON G”.
RCA-BNC
Adapter plug
RCA-BNC
Adapter plug
DVD Player
DVD Player
VCR
Computer RGB Camcorder
Connections
VIDEO and COMPONENT / RGB IN connection
Note:
Additional equipment, cables and adapter plugs shown are not supplied wi\
th this set.S Video Input Terminal
Luminance 
Signal 
Color Signal
Earth (Color Signal)Earth (Luminance Signal) 
10