Panasonic Full Hd Lcd Display Th 42lf20 Operating Instructions

							
H-FREQ.
V- F R E Q .kHz
Hz
63.98
60.02
SIGNAL FORMAT 1280×1024/60
H-FREQ.
V-FREQ. kHz
Hz
63.98
60.02
DOT CLOCK FREQ.MHz
108.0
SIGNAL FORMAT 1280×1024/60
41
SET UP for Input Signals
Displays the frequency and the type of the current input signal.
This display is valid only for COMPONENT/RGB/PC and Digital input signal\
. 
Display range: Horizontal  30 - 110 kHz
Vertical  48 - 120 Hz
The dot clock frequency is displayed during digital signal input.
Note:
The automatically detected signal format may be displayed differently than the actual 
input signal.
Input signal display 
						

							
Options 
Enable Off-timer function Normal Initial Power Mode OffPower On Screen DelayOffClock Display
2/2
OnPower Switch Lock
Options 1/2
Initial input On screen displayOn
Off
Off Off
0
0Maximum VOL level
Initial VOL levelOffInput lockOffButton lockOffRemocon User level
42
Item Adjustments
On screen display On:
  Displays all the following on screen.
• Power on display
• Input signal switch display
• No signal display
• Mute and the remaining time of off-timer after 
 was pressed.
Off:   Hides all the items above from view.
Initial input Adjusts the input signal when the unit is turned on.
Off 
 VIDEO  Component/RGB  PC  DVI  HDMI1  HDMI2  Off
Notes:
• Only the adjusted signal is displayed. (see page 16)
• This menu is available only when “Input lock” is “Off”.
Initial VOL level Press 
 button to adjust the volume when the unit is turned on.
Off 
 On
Off:   Sets normal volume.
On:   Sets your preferred volume.
Notes:
• 
When “Maximum VOL level” is “On”, the volume can only be adjusted between 0 and \
your maximum range.• You can hear the changed volume regardless of your volume setting before \
opening the options menu if  you adjust the volume when “Initial VOL level” is “On” and cursor is on the menu.
Maximum VOL level Press 
 button to adjust the maximum volume.
Off 
 On
Off:   Sets auto maximum volume.
On:   Sets your preferred maximum volume.
Notes:
• If the “Maximum VOL level” is set lower than the “Initial VOL level”, the “Initial VOL level” automatically  becomes the same as the “Maximum VOL level”.
• The volume display can go up to 100 regardless of the settings.
• You can hear the changed volume regardless of your volume setting before \
opening the options menu if  you adjust the volume when “Maximum VOL level” is “On” and cursor is on the menu.
Input lock Locks the input switch operation.
Off 
 VIDEO  Component/RGB  PC  DVI  HDMI1  HDMI2  Off
Notes:
• Only the adjusted signal is displayed (see page 16).
• Input switch can be used when this is set to “Off”. 
Options Adjustments
1
2
4Press to display the SET UP menu.
3
5
Press to select “OSD LANGUAGE”.
Press for more than 3 seconds.
Press to select “Options”.
Press to display the Options menu.
Press to select your preferred menu.
Press to adjust the menu.
Press to exit from Options menu.
Options
Shipping 
						

							
43
Item Adjustments
Button lockOff 
 On  MENU&ENTER
 
Off:   All the buttons on main unit can be used.
MENU&ENTER:  Locks 
MENU and ENTER/ buttons on main unit.
On:   Locks all the button on main unit.
Sets Button lock with the unit buttons in the following procedure.
Off:   Press 
 four times →Press INPUT four times →Press  four times →Press ENTER/
MENU&ENTER:  Press ENTER/ four times→Press  four times →Press INPUT four times →Press ENTER/
On:   Press  four times →Press ENTER/ four times →Press  four times →Press ENTER/
Remocon User level Off 
 User1  User2  User3 
Off:   You can use all of the buttons on the remote control.
User1:
 You can only use , , , ,  buttons on the remote control.
User2:  You can only use 
 button on the remote control.
User3: Locks all the buttons on remote control.
Off-timer function Enable:
  Enables the “Off-timer function”.
Disable:   Disables the “Off-timer function”.
Note:     When “Disable” is set, the Off-timer is cancelled.
Initial Power Mode Normal 
 On  StandbySets the power mode of the unit for when the power recovers from failure\
 or after plugging off and in again.
Normal:
  Power returns in as the same state as before the power interruption.
Standby:   Power returns in standby mode. (Power Indicator : red/orange)
On:     Power returns in power On. (Power Indicator : green)
Note:  
When using multiple displays, “Standby” is preferred to be set in \
order to reduce a power load.
Power On Screen 
Delay Off 
 1  2  3....  30
 
You can set the power-on delay time of the displays to reduce the power l\
oad, when you press POWER button 
to turn on the multiple displays that are set together, for example, on MULTI DISPLAY system. 
Set each display’s setting individually.
Off:       The display will be turned on at the same time as POWER button is presse\
d.
1 to 30 (sec.):  Set the power-on delay time (second).
      After pressing POWER button,  the display will be powered on with time delay depending on this 
setting.
Notes:
• During this function is working, the power indicator is blinking gr\
een.
• 
This function also works when the power recovers from failure or after p\
lugging off and in again the power cord.
Clock Display Off:
  Not display the clock.
On:   Display the clock.
The clock is displayed at the lower left of the screen when 
 button is pressed.
         Note:  When “PRESENT TIME SETUP” is not set, the clock is not displayed even 
if “Clock Display” is “On” (see page 28)
  
10:00
Power Switch Lock Sets the lock setting for the display Power switch.
On:
  Power switch operation is disabled.
Off:   Power switch operation is enabled.
Options Adjustments
Normalization
When both main unit buttons and remote control are disabled due to the “\
Button lock” or “Remocon User level” adjustments, 
set all the values “Off” so that all the buttons are enabled again.
Press the 
 button on main unit together with  button on the remote control and hold for more than 5 seconds. The 
“Shipping” menu is displayed and the lock is released when it disa\
ppears. 
						

							
44
Troubleshooting
Before you call for service, determine the symptoms and make a few simpl\
e checks as shown below.
SymptomsChecks
Picture Sound
InterferenceNoisy SoundElectrical Appliances
Cars / Motorcycles
Fluorescent light
Normal PictureNo Sound
Volume
(Check whether the mute function has been activated on the remote contr\
ol.)
No PictureNo SoundNot plugged into AC outlet
Not switched on
PICTURE and BRIGHTNESS/Volume setting
(Check by pressing the power switch or stand-by button on the remote co\
ntrol.)
No PictureNormal Sound
If a signal with a non-applicable color system format, or frequency is i\
nput, only the input 
terminal indication is displayed.
No ColorNormal SoundColor controls set at minimum level. (see page 25, 26)
COLOR SYSTEM (see page 39)
No remote control operations can be performed.
Check whether the batteries have discharged completely and, if they have\
 not, whether they were 
inserted properly.
Check whether the remote control sensor is exposed to an outdoor light o\
r a strong  fl uorescent light.
Check whether the remote control designed speci fi cally for use with the unit is being used. (The unit 
cannot be operated by any other remote control.)
A cracking sound is sometimes heard from the unit. If there is nothing wrong with the picture or sound, this is the sound o\
f the  cabinet undergoing 
very slight contractions in response to changes in the room temperature.\
  There are no adverse 
effects on the performance or other aspects.
The top or bottom of the picture on the screen is cut 
off when I use the zoom function. Adjust the position of the picture on the screen.
Areas at the top and bottom of the screen where 
the image is missing appear when I use the zoom 
function. When using a video software program (such as a cinema size program) wi\
th a screen wider 
than one in the 16:9 mode, blank areas separate from the images are form\
ed at the top and 
bottom of the screen.
I can hear sounds coming from inside the unit. When the power is turned on, a sound of the display panel being driven m\
ay be hea rd: This is 
normal and not indicative of malfunctioning.
Parts of the unit become hot. Even when the temperature of parts of the front, top and rear panels has\
 risen, these temperature 
rises will not pose any problems in terms of performance or quality.
Power automatically turns off unexpectedly. Check the settings of “POWER MANAGEMENT” and “AUTO POWER OFF” in the SET UP  menu. Any of them may be set to “ON”. (see page 32)
This LCD Display uses special image processing. Hence a slight time lag \
may occur between image and audio, depending on the typ e of input signal. 
However, this is not a malfunction.
LCD Display panel
Symptoms Check
The screen darkens slightly when bright pictures with 
minimal movements are shown. The screen will darken slightly when photos, still images of a computer \
or other pictures with minimal 
movements are shown for an extended period. This is done to reduce image retention on the screen 
and the shortening of the screen’s service life: It is normal and not indicative of malfunctioning.
It takes a while for the picture to appear. The unit digitally processes the various signals in order to reproduce e\
sthetically  pleasing 
images. As such, it sometimes takes a few moments for the picture to appear when\
 the power 
has been turned on, when the input has been switched.
The edges of the images  fl icker. Due to the characteristics of the system used to drive the panel, the ed\
ges may appear to  fl icker 
in the fast-moving parts of the images: This is normal and not indicative of malfunctioning.
There may be red spots, blue spots, green spots and 
black spots on the screen. This is a characteristic of liquid crystal panels and is not a problem. \
The liquid crystal panel 
is built with very high precision technology giving you 
fi ne picture details. Occasionally, a few 
non-active pixels may appear on the screen as  fi xed points of red, blue, green, or black. Please 
note this does not affect the performance of your LCD.
Image retention appears 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. This is not considered 
as malfunction. 
						

							
45
Applicable input signals
*Mark: Applicable input signal
Signal nameHorizontal 
frequency (kHz) Vertical 
frequency (Hz)RGB IN
(Dot clock (MHz)) PC IN
(Dot clock (MHz)) DVI-D IN
(Dot clock (MHz)) HDMI1
HDMI2
1 640x400@70Hz 31.46  70.07  * (25.17) * (25.17) * (25.17)
2 640x400@85Hz 37.86  85.08  * (31.5) * (31.5) * (31.5)
3 640x480@60Hz 31.43  59.88  * (25.15) * (25.15) * (25.15)
4 640x480@60Hz 31.47  59.94  * (25.18) * (25.18) * (25.18) *
5 640x480@67Hz 35.00  66.67  * (30.24) * (30.24) * (30.24)
6 640x480@72Hz 37.86  72.81  * (31.5) * (31.5) * (31.5)
7 640x480@75Hz 37.50  75.00  * (31.5) * (31.5) * (31.5)
8 640x480@85Hz 43.27  85.01  * (36.0) * (36.0) * (36.0)
9 720x400@70Hz 31.47  70.08  * (28.32) * (28.32) * (28.32)
10 800x600@55Hz 34.50  55.38  * (35.33) * (35.33) * (35.33) 11 800x600@56Hz 35.16  56.25  * (36.0) * (36.0) * (36.0)
12 800x600@60Hz 37.88  60.32  * (40.0) * (40.0) * (40.0) *
13 800x600@60Hz 38.00  60.51  * (40.13) * (40.13) * (40.13)
14 800x600@72Hz 48.08  72.19  * (50.0) * (50.0) * (50.0)
15 800x600@75Hz 46.88  75.00  * (49.5) * (49.5) * (49.5)
16 800x600@85Hz 53.67  85.06  * (56.25) * (56.25) * (56.25)
17 852x480@60Hz 31.47  59.94  * (33.54) * (33.54) * (34.24)
18 1,024x768@50Hz 39.55  50.00  * (51.89) * (51.89) * (51.89)
19 1,024x768@60Hz 48.36  60.00  * (65.0) * (65.0) * (65.0) *
20 1,024x768@60Hz 48.50  60.02  * (64.99) * (64.99) * (65.18)
21 1,024x768@70Hz 56.48  70.07  * (75.0) * (75.0) * (75.0)
22 1,024x768@75Hz 60.24  74.93  * (80.0) * (80.0) * (80.0)
23 1,024x768@75Hz 60.02  75.03  * (78.75) * (78.75) * (78.75)
24 1,024x768@75Hz 61.01  75.70  * (80.05) * (80.05) * (81.0)
25 1,024x768@85Hz 68.68  85.00  * (94.5) * (94.5) * (94.5)
26 1,024x768@120Hz 97.55  119.99  * (115.5) * (115.5)
27 1,066x600@60Hz 37.64  59.94  * (53.0) * (53.0) * (53.0)
28 1,152x864@60Hz 53.70  60.00  * (81.62) * (81.62) * (81.62)
29 1,152x864@75Hz 67.50  75.00  * (108.0) * (108.0) * (108.0)
30 1,152x900@65Hz 61.20  65.20  * (92.0) * (92.0) * (92.0)
31 1,152x900@66Hz 61.85  66.00  * (94.5) * (94.5) * (94.5)
32 1,152x900@75Hz 71.40  75.60  * (105.1) * (105.1) * (105.1)
33 1,280x768@60Hz 47.78  59.87  * (79.50) * (79.50) * (79.50)
34 1,280x800@50Hz 41.20  50.00  * (68.55) * (68.55) * (68.55)
35 1,280x960@60Hz 60.00  60.00  * (108.0) * (108.0) * (108.0)
36 1,280x960@85Hz 85.94  85.00  * (148.5) * (148.5) * (148.5)
37 1,280x1,024@50Hz 52.70  50.00  * (89.38) * (89.38) * (89.38)
38 1,280x1,024@60Hz 63.34  59.98  * (108.18) * (108.18) * (108.18)
39 1,280x1,024@60Hz 63.90  60.00  * (107.35) * (107.35) * (107.35)
40 1,280x1,024@60Hz 63.37  60.01  * (107.5) * (107.5) * (107.5)
41 1,280x1,024@60Hz 63.74  60.02  * (108.1) * (108.1) * (108.1)
42 1,280x1,024@60Hz 63.98  60.02  * (108.0) * (108.0) * (108.0) *
43 1,280x1,024@60Hz 63.79  60.18  * (108.19) * (108.19) * (108.19)
44 1,280x1,024@66Hz 70.66  66.47  * (119.84) * (119.84) * (119.84)
45 1,280x1,024@75Hz 79.98  75.02  * (135.0) * (135.0) * (135.0)
46 1,280x1,024@76Hz 81.13  76.11  * (135.0) * (135.0) * (135.0)
47 1,280x1,024@85Hz 91.15 85.02  * (157.5) * (157.5)
48 1,360x768@60Hz 47.71  60.02  * (85.5) * (85.5) * (85.5)
49 1,366x768@50Hz 39.55  50.00  * (69.92) * (69.92) * (69.92)
50 1,366x768@60Hz 48.36  60.00  * (86.71) * (86.71) * (87.44)
51 1,400x1,050@60Hz 65.12  59.91  * (121.38) * (121.38) * (122.43)
52 1,400x1,050@60Hz 65.32  59.98  * (121.75) * (121.75) * (121.75)
53 1,400x1,050@60Hz 65.35  60.12  * (121.81) * (121.81) * (121.85)
54 1,400x1,050@75Hz 82.28  74.87  * (156.0) * (156.0) * (156.0)
55 1,600x1,200@60Hz 75.00  60.00  * (162.0) * (162.0) * (162.0)
56 1,920x1,080@60Hz 67.50  60.00  * (148.5) * (148.5) * (148.5)
57 1,920x1,200@60Hz 74.04  59.95  * (154.0) * (154.0)
58 Macintosh13 (640x480) 35.00  66.67  * (30.24) * (30.24) * (30.24)
59 MacintoshLC13 (640x480) 34.97  66.60  * (31.33) * (31.33) * (31.33)
60 Macintosh16 (832x624) 49.72  74.55  * (57.28) * (57.28) * (57.28)
61 Macintosh19 (1,024x768) 60.24  75.08 * (80.0) * (80.0) * (80.0)
62 Macintosh21 (1,152x870) 68.68  75.06  * (100.0) * (100.0) * (100.0)
63 Macintosh II (1,280x1,024) 80.00  75.00  * (134.4) * (134.4) * (135.2)
PC signals 
						

							
46
Applicable input signals
Video signals (VIDEO, S-VIDEO)
Signal nameHorizontal Vertical
frequency (kHz) frequency (Hz)
1 NTSC 15.73 59.94
2 PAL 15.63 50.00
3 PAL60 15.73 59.94
4 SECAM 15.63 50.00
5 NTSC 4.43 15.73 59.94
6 PAL N 15.63 50.00
7 PAL M 15.73 59.94
This function allows you to reset the unit to the factory setting.
Shipping condition
1
4Press to display the SET UP menu.
Press to select “OSD LANGUAGE”.
Press for more than 3 seconds.
Press to select “Shipping”.
Press to display the Shipping menu.
Press to select “YES”.
Press to con fi rm.
[from the unit]
1   Press the MENU button till the SET UP menu is displayed.
2   Press the Volume Up “+” or Down “–” button to select “OSD LANGUAG\
E”.
3   Press and hold the ENTER button till the Shipping menu is displayed.
4   Press the Volume Up “+” or Down “–” button to select “YES”.
5   Press the ENTER button and wait for 10 sec.
2
3
Options
Shipping
Shipping
YESNO
1/2
SIGNAL
INPUT LABEL
WOBBLING
SET UP
OFF
POWER MANAGEMENTOFF
AUTO POWER OFF OFF
STANDBY SAVE OFF(
SERIAL )
ECO OFF
OSD LANGUAGE ENGLISH (
US )
COMPONENT/RGB-IN SELECT
RGB
SCREENSAVER
*Mark: Applicable input signal
Signal nameHorizontal 
frequency (kHz)Vertical 
frequency (Hz)COMPONENT IN
(Dot clock (MHz)) DVI-D IN
(Dot clock (MHz))HDMI1
HDMI2
1 525(480)/60i 15.73  59.94  * (13.5) * (27.0) *
2 525(480)/60p 31.47 59.94  * (27.0) * (27.0) *
3 625(575)/50i 15.63 50.00  * (13.5)
4 625(576)/50i 15.63 50.00  * (27.0)
*5 625(575)/50p 31.25 50.00  * (27.0) *
6 625(576)/50p 31.25 50.00  * (27.0) *
7 750(720)/60p 45.00 60.00  * (74.25) * (74.25) *
8 750(720)/50p 37.50 50.00  * (74.25) * (74.25) *
9 1,125(1,080)/60p 67.50 60.00  * (148.5)
∗1 * (148.5) *
10 1,125(1,080)/60i 33.75 60.00  * (74.25)
∗1 * (74.25) *
11 1,125(1,080)/50p 56.25 50.00  * (148.5)
∗1 * (148.5) *
12 1,125(1,080)/50i 28.13 50.00  * (74.25)
∗1 * (74.25)*131,125(1,080)/24sF27.00 48.00  * (74.25)∗2
14 1,125(1,080)/30p 33.75 30.00  * (74.25)
∗1 * (74.25) *
15 1,125(1,080)/25p 28.13 25.00  * (74.25)
∗1 * (74.25) *
16 1,125(1,080)/24p 27.00 24.00  * (74.25)
∗1 * (74.25) *
∗1: Based on SMPTE 274M standard. ∗2: Based on SMPTE RP211 standard.
Component signals 
						

							
47
TH-42LF20U TH-47LF20U
Power Source  110 - 127 V AC, 50/60 Hz
Power Consumption Rated Power 
Consumption 250 W 300 W
On mode Average Power  Consumption ∗ 200 W 255 W
Stand-by condition 0.1 W 0.1 W
LCD Display panel 42-inch IPS panel, 16:9 aspect ratio 47-inch IPS panel, 16:9 aspect ratio
Screen size 36.6” (930 mm) (W) × 20.5” (523 mm) (H) × 
42.0” (1,067 mm) (diagonal) 40.9” (1,040 mm) (W) × 23.0” (585 mm) (H) × 
46.9” (1,193 mm) (diagonal)
(No.of pixels) 2,073,600 (1,920 (W) × 1,080 (H))
[5,760 × 1,080 dots] 2,073,600 (1,920 (W) × 1,080 (H))
[5,760 × 1,080 dots]
Operating condition Temperature 32 °F - 104 °F (0 °C - 40 °C) 32 °F - 104 °F (0 °C - 40 °C)
Humidity 20 % - 80 % 20 % - 80 %
Applicable signals Color System NTSC, PAL, PAL60, SECAM, NTSC 4.43, PAL M, PAL N
Scanning format 525 (480) / 60i · 60p, 625 (575) / 50i · 50p, 750 (720) / 60\
p · 50p, 1125 (1080) / 60i · 60p · 50i · 50p 
· 24p · 25p · 30p · 24sF, 1250 (1080) / 50i 
PC signals VGA, SVGA, XGA, SXGA
UXGA ···· (compressed)
Horizontal scanning frequency 30 - 110 kHz Vertical scanning frequency 48 - 120 Hz
Connection terminals
AV IN VIDEO
S-VIDEO
AUDIO L-R BNC
Mini DIN 4PIN
RCA Pin jack × 2 1.0 Vp-p (75 
Ω)
Y: 1.0 Vp-p (75  Ω), C: 0.286 Vp-p (75  Ω)
0.5 Vrms
HDMI 1/2 TYPE A Connector × 2
COMPONENT/RGB IN G/Y
B/P
B/CB
R/PR/CR
AUDIO L-R BNC
BNC
BNC
RCA Pin jack × 2
with sync 1.0 Vp-p (75 
Ω)
0.7 Vp-p (75  Ω)
0.7 Vp-p (75  Ω)
0.5 Vrms
DVI-D IN
AUDIODVI-D 24 Pin
Content Protection
Stereo mini jack (M3) × 1
Compliance with DVI Revision 1.0
Compatible with HDCP 1.1
0.5 Vrms, Shared with PC IN
PC IN
AUDIOHigh-Density Mini D-sub 15 Pin
Stereo mini jack (M3) × 1
G with sync 1.0 Vp-p (75 
Ω)
G without sync 0.7 Vp-p (75  Ω)
B: 0.7 Vp-p (75  Ω)
R: 0.7 Vp-p (75  Ω)
HD/VD: 1.0 - 5.0 Vp-p (high impedance)
0.5 Vrms, Shared with DVI-D IN
SERIAL External Control Terminal
D-sub 9 Pin RS-232C compatible
Sound Speakers 2.0” (50 mm) × 3.6” (90 mm) × 2 pcs
Audio Output 10 W [5 W + 5 W] (10 % THD)
Dimensions (W × H × D)
38.2” (968 mm) × 22.1” (561 mm) × 4.0” (101 mm) 42.5” (1,079 mm) × 24.6” (624 mm) × 4.0” (101 mm) 
Mass (weight) approx. 39.7 lbs approx. 50.7 lbs
∗ 
Based on IEC 62087 Ed.2 section 11.6.1 measurement method.
Note:
Design and speci fi cations are subject to change without notice. Mass and dimensions shown \
are approximate.
Speci fi cations 
						

							
This product has a fl uorescent lamp that contains mercury.
Disposal may be regulated in your community due to environmental conside\
rations. 
For disposal or recycling information, please contact your local authori\
ties, or the 
Electronic Industries Alliance:
http://www.eiae.org.
Panasonic Solutions Company
Unit of Panasonic Corporation of North America
Executive Of fi ce :
Three Panasonic Way 2F-5, Secaucus, NJ 07094
Panasonic Canada Inc.
5770 Ambler  Drive
Mississauga, Ontario
L4W 2T3
Customer’s Record
The model number and serial number of this product can be found on its b\
ack cover. You should note this serial number 
in the space provided below and retain this book, plus your purchase rec\
eipt, as a permanent record of your purchase 
to aid in identi fi cation in the event of theft or loss, and for Warranty Service purposes.
Model Number  Serial Number         
© Panasonic Corporation 2010