Panasonic LCD Projector PT-LB90NTU PT-LB90U PT-LB78VU PT-LB75VU Operating Instructions

							Troubleshooting
Maintenance
ENGLISH - 51
Troubleshooting
Confirm the following problem and cause. 
Should any problem persist, contact an Authorized Service Center.
Problem CausePage
Power does not turn on. The power cord may not be connected securely.
 
z19
No electric supply at the wall outlet.
 
z21
The circuit breakers have tripped.
 
z—
TEMP
 
z or LAMP indicator is lit or flashes. 46
The lamp unit cover has not been securely installed.
 
z49
The control buttons are 
 
zLOCKED. 44
CONTROL PANEL
 
z in the PROJECTOR SETUP menu is invalidated.  44
No picture appears. The audio signal source may not be connected properly.
 
z17, 18
The input selection setting may not be correct.
 
z23
The 
 
zBRIGHTNESS adjustment setting may be at the minimum setting. 30
The signal input source may not be operating properly.
 
z—
The 
 
zAV MUTE function may be in use. 24
The picture is fuzzy. The lens focus may not have been set correctly.
 
z23
The projector may not be at the correct distance from the screen.
 
z15
The lens may be dirty.
 
z47
The projector may be tilted too much.
 
z15
Color is pale or grayish. COLOR
 
z or TINT adjustment may be incorrect. 30
The input source which is connected to the projector may not be adjusted\
  
z
correctly.
—
No sound can be 
heard from the internal 
speaker. The audio signal source may not be connected properly.
 
z17, 18
The volume adjustment may be at the lowest possible setting.
 
z25, 41
A cable may be connected to the 
 
zVARIABLE AUDIO OUT terminal. 13
The remote control does 
not operate. The batteries may be weak.
 
z—
The batteries may not have been inserted correctly.
 
z14
The remote control signal receptor on the projector may be obstructed.
 
z14
The remote control unit may be out of the operation range.
 
z14
REMOTE CONTROLLER
 
z in the PROJECTOR SETUP menu is 
invalidated. 44
The remote control is under a strong light such as fluorescent.
 
z14
The control buttons  
 of the projector 
do not operate. CONTROL PANEL
 
z in the PROJECTOR SETUP menu is invalidated.   
(If you have a loss of the remote control while the 
CONTROL PANEL is 
invalidated, press and hold the 
MENU button for 2 seconds by pressing the 
ENTER button.)
44
The picture does not  
display correctly. T
 
zhe signal format (TV-SYSTEM, RGB/YPBPR) may not have been set 
correctly.31
There may be a problem with the VCR or other signal source.
 
z—
A signal which is not compatible with the projector is being input.
 
z52
Picture from a computer 
does not appear. The RGB signal cable is too long. (Limit to 10 m (32'10").)
 
z—
The external video output from a laptop computer may not be correct.  
 
z
(You may be able to change the external output settings by pressing the 
[Fn] + [F3] or [Fn] + [F10] keys simultaneously. The actual method varies 
depending on the type of computer; refer to the documentation provided 
with your computer for further details.) 36
The projector cannot be 
controlled through serial 
terminal. EMULATE
 
z in the PROJECTOR SETUP menu is not set correctly. (If you 
fail to select your product series, ask your dealer for repair. ) 40
Note
If the projector does not operate normally after the above remedies are \
taken, contact an Authorized Service Center. 
z 
						

							Technical Information
Appendix
52 - ENGLISH
Technical Information
List of compatible signals
This projector can project the following image signals.
ModeDisplay resolution 
 
(dots) *1
Scanning frequency Dot clock  
frequency   
(MHz) Picture  
quality *
2PnP  
availability *3Terminals
H (kHz) V (Hz)
NTSC/NTSC4.43/  PAL-M/PAL60 720 × 480i
15.759.9 —A
VIDEO/S-VIDEO
PAL/PAL-N/SECAM 720 × 576i15.650— A
525i (480i) 720 × 480i15.759.913.5 A
COMPUTER/ YP
BPR
625i (576i) 720 × 576i15.65013.5 A
525p (480p) 720 × 48331.559.9 27A
625p (576p) 720 × 57631.35027 A
1 125 (1 080)/60i 1 920 × 1 080i33.86074.3 A
1 125 (1 080)/50i 1 920 × 1 080i28.15074.3 A
750 (720)/60p 1 280 × 720456074.3 A
COMPUTER/ 
YP
BPR750 (720)/50p 1 280 × 72037.55074.3 A
VESA 640 × 400
31.570.125.2 A
COMPUTER
640 × 400
37.985.131.5 A
VGA 640 × 480
31.559.925.2 A
640 × 480 3566.7 30.2 A
640 × 480 37.972.831.5 A
640 × 480 37.57531.5 A
640 × 480 43.38536 A
SVGA 800 × 600
35.256.3 36A
800 × 600 37.960.3 40A
800 × 600 48.172.2 50A
800 × 600 46.97549.5 A
800 × 600 53.785.156.3 A
MAC 832 × 62449.774.657.3 A
XGA 1 024 × 768
39.650.151.9 AA
1 024 × 768 48.46065AA1 024 × 768 56.570.1 75AA
1 024 × 768 607578.8 AA
1 024 × 768 68.78594.5 AA
MXGA 1 152 × 864
6471.2 94.2 A
1 152 × 864 67.574.9 108 A
1 152 × 864 76.785121.5 B
MAC 1 152 × 87068.775.1 100 A
MSXGA 1 280 × 9606060108 A
SXGA 1 280 × 1 024
6460108 A
1 280 × 1 024 8075135 B
1 280 × 1 024 91.185157.5 B
SXGA60+ 1 400 × 1 050
6460108 A
1 400 × 1 050 65.159.9122.4 B
UXGA 1 600 × 1 200 7560162 B
WIDE750 (720) 1 280 × 720
44.859.974.5 A1 280 × 720 37.149.860.5 A
WXGA768 1 280 × 768
39.649.965.3 A
1 280 × 768 47.859.979.5 A
WXGA800 1 280 × 800
41.35068 A
1 280 × 800 49.160.269.1 A
1 280 × 800 49.759.883.5 A
WXGA+ 1 440 × 90055.959.9106.5 A
WSXGA+ 1 680 × 1 05065.360146.3 B
WUXGA 1 920 × 1 20074.659.9193.3 B
The “i” appearing after the resolution indicates an interlaced sig\
nal.
*1: 
The following symbols are used to indicate picture quality.
*2: 
AA:  Maximum picture quality can be obtained.
A  : Signals are converted by the image processing circuit before picture is projected.
B  : Some loss of data occurs to make projection easier.
The signals marked with circles (
*3: 
) can be applied by plug-and-play device. 
						

							Technical Information
Appendix
ENGLISH - 53
Serial terminal
The serial connector which is on the connector panel of the projector conforms to the RS-232C interface specifi-
cations, so that the projector can be controlled by a personal computer \
which is connected to this connector.
Connection 
J
Computer
D-Sub 9-pin (male)
Serial terminal (female)
Pin assignments and signal names 
J
Pin No.
Signal name Contents
NC
TXDTransmitted data
RXD Received data
NC
GND Earth
NC
RTS
Connected internally
CTS
NC
Communication settings 
J
Signal level
RS-232C Character length8 bits
Sync.method Asynchronous Stop bit1 bit
Baud rate 9 600 bps X parameterNone
Parity None S parameterNone
Basic format 
J
STX
Command :Parameter ETX
Start byte   
(02 h) 1 byte
3 bytes 1 byte - 4 bytes End  
(03 h) The data streaming from the computer will start with 
STX, and proceed to Command, Parameter and end 
with ETX. 
You can add the required parameter.
Note The projector can not receive any command for 10 seconds after the lamp \
is switched on. Wait for 10 seconds 
 
z
before sending the command.
If sending multiple commands, check if a response has been received from\
 the projector for one command 
 
z
before sending the next command.
When a command which does not require parameters to be sent, the colon (\
:) is not required.
 
z
Remarks
If an incorrect command is sent from the personal computer, the ER401 command will be sent from the 
 
z
projector to the personal computer. 
						

							Technical Information
Appendix
54 - ENGLISH
 
JCable specifications
(When connected to a personal computer)
 
 
 
 
 
 
Control commands 
J
The following commands are used for control of the projector with a comp\
uter.
(Operation commands)
Command
Control contents Remarks
PON Power on The PON command is ignored during lamp ON control.
 
z
If a PON command is received while the cooling fan is operating after th\
e lamp has switched  
z
off, the lamp is not turned back on again straight away in order to protec\
t the lamp.
POF
Power off
AVL VolumeParameter:
000 - 063 (Adjustment value 0 - 63)
IIS InputParameter:
VID = VIDEO   
SVD = S-VIDEO    RG1 = COMPUTER 1 IN
RG2 = COMPUTER 2 IN    NWP = NETWORK (PT-LB90NTU only)
Q$S Lamp condition 
query Call back:
0 = Standby   
1 = Lamp on control active    2 = Lamp on   3 = Lamp off control active
OSH AV mute Turning off the projection and sound temporarily.
Send the command to switch between off and on. (
Æpage 24
)
Do not send the command consecutively.
0 = Off    1 = On
Remarks
If 
 
zSTANDBY MODE is set to  ECO, only PON and Q$S command can be used in the standby mode.
LAN terminal
Name and function of LAN terminal 
J
LINK lamp (Yellow) 
 
10 Base-T/100 Base-TX  
light up when connected. ACT lamp (Green)
Flashing when data are transmitted or received.
Note
Do not touch the LAN terminal or the metal part of the LAN cable. 
 
z
Otherwise, the static electricity may discharge from our hand (body) a\
nd thus cause a malfunction.
MENU LOCK PASSWORD
To initialize your password, consult your distributor.
Projector
NC 1 1NC
PC 
(DTE)
2 2
3 3
NC 4 4NC
5 5
NC 6 6NC
7 7
8 8
NC 9 9NC 
						

							Appendix
ENGLISH - 55
Specifications
The specifications of this projector are as follows.
Power supplyAC 100 - 240 V 50 Hz/60 Hz
Power consumption 300 W 
During standby (when fan is stopped): Approx. 0.9 W
Amps 3.7 A - 1.5 A
LCD panel Panel size (diagonal)
0.63 type (16.00 mm)
Aspect ratio 4:3
Display method 3 transparent LCD panels (RGB)
Drive method Active matrix method
Pixels 786 432 (1 024 × 768) × 3 panels
Lens Manual zoom (1.2×)/Manual focus
 
F 1.65 - 1.93, f 18.53 mm - 22.18 mm
Lamp UHM lamp (220 W)
Luminosity *
13 500 lm (PT-LB90NTU/LB90U)  3 000 lm (PT-LB78VU) 
2 600 lm (PT-LB75VU)
Scanning   
frequency *
2  
(for RGB signal) Horizontal scanning 
frequency
15 kHz - 91 kHz
Vertical scanning  
frequency 50 Hz - 85 Hz
Dot clock frequency Less than 110 MHz
COMPONENT (YP
BPR) signals 525i (480i), 525p (480p), 625i (576i), 625p (576p), 750 (720)/\
60p, 
 
750 (720)/50p, 1 125 (1 080)/60i, 1 125 (1 080)/50i
Color system 7 (NTSC/NTSC4.43/PAL/PAL-M/PAL-N/PAL60/SECAM)
Projection size 33" - 300" (838.2 mm - 7 620 mm)
Optical axis 5:1 fixed
Throw distance 1.1 m - 11.4 m (3'7" - 37'4")
Screen aspect ratio 4:3
Installation FRONT/DESK, FRONT/CEILING, REAR/DESK, REAR/CEILING 
 
(Menu selection method)
Speaker 1 piece 4 cm × 2 cm (1  5/8" × 3/4")
Max. useable volume output 1.0 W (Monaural)
Terminals S-VIDEO IN
Single - line, Mini DIN 4p
 
Y: 1.0 V [p-p], C: 0.286 V [p-p], 75 Ω
VIDEO IN Single - line, RCA pin jack 
1.0 V [p-p], 75 Ω
COMPUTER Dual - line, D-Sub HD 15-pin (female)
RGB input 
 
z
R.G.B.:  0.7 V [p-p], 75 Ω  
G-SYNC:  1.0 V [p-p], 75 Ω  
HD, VD/SYNC:   
TTL high impedance, automatic positive/negative 
polarity compatible
YP 
zBPR/YCBCR input 
Y:  1.0 V [p-p] (include sync), 75 Ω 
P
B/CB, PR/CR:  0.7 V [p-p], 75 Ω
AUDIO IN Single - line, 0.5 V [rms], RCA pin jack × 2 (L-R)
COMPUTER AUDIO IN Single - line, 0.5 V [rms], M3 jack (Stereo MINI)
VARIABLE AUDIO OUT Single - line, M3 jack (Stereo MINI)
 
Monitor output/stereo compatible  
0 V [rms] - 2.0 V [rms] (variable)
SERIAL Single - line, D-Sub 9-pin RS-232C compatible
LAN (RJ-45) Single - line, 10Base-T/100Base-TX (PT-LB90NTU only)
Measurement, measuring conditions and method of notation all comply with\
 ISO21118 international 
*1: 
standards.
See “List of compatible signals” on page 5
*2:  2 for available signals. 
						

							Appendix
56 - ENGLISH
Specifications
Wireless LAN 
(PT-LB90NTU 
only)Compatible
IEEE802.11 b/IEEE802.11 g (Wireless LAN standard protocol)
Wireless channel IEEE802.11 b/IEEE802.11 g: 1 - 13 channels
Distance Approx. 30 m (98'5") (depends on the usage environment)
Cabinet Moulded plastic (PC+ABS)
Dimensions Width: 
368 mm (14  1/2")
 
z
Height:  88 mm (3  1/2") 
z
Length:  233 mm (9  1/8") (not including surface projection parts) 
z
Weight Approx. 2.96 kg (6.6 lbs.) *3
Operating environment Temperature:   
0 °C - 40 °C (32 °F - 104 °F)  
 
z
When the HIGH ALTITUDE MODE (page 39) is 
set to ON: 0 °C - 35 °C (32 °F - 95 °F)
Humidity:  20% - 80% (no condensation)
 
z
Certifications UL60950-1 
C-UL
FCC Class B  ICES-003
Remote control Power supply
3 V DC (AA battery × 2)
Operating range Approx. 15 m (49'2") (when operated directly in front of signal 
 
receptor)
Weight Approx. 117 g (4.2 ozs.) (including batteries)
Dimensions Width: 
48 mm (1  7/8")
 
z
Length:  163 mm (6  3/8") 
z
Height:  24.5 mm (1") (not including surface projection parts) 
z
Options Ceiling bracket ET-PKB80
Average value. Each product has an individual variability in weight.
*3:  
						

							Appendix
ENGLISH - 57
Ceiling mount bracket safeguards
Installation work of the ceiling mount bracket should only be carried by a qualified technician. 
z
Even if it is during guaranteed period, the manufacturer is not responsi\
ble for any hazard or damage caused  
z
by using a ceiling mount bracket which is not purchased from an authoriz\
ed distributors, or environmental 
conditions.
Remove an unused ceiling mount bracket promptly.
 
z
Make sure to use a torque driver and do not use an electrical screwdrive\
r or an impact screwdriver. 
z 
Torque: 1.25 ± 0.2 N·m
9 mm
M4×0.7 
						

							Dimensions
Appendix
58 - ENGLISH
Dimensions
Unit: mm
233 
(9 - 5/32")
97
3 - 13/16"
883 - 7/16"
93
3 - 21/32"
 - 3/16"   5
4
- 5/32"
9
- 1 1/32"
2 - 1/8"
   54.5
3
- 3/32"
368 (14 - 15/32")
3 - 15/32"
88.6 103.6
4 - 1/16"194.47 - 5/8"
 
 
Trademark acknowledgements
 
 
VGA and XGA are trademarks of International Business Machines Corporation. 
z
S-VGA is a registered trademark of the Video Electronics Standards Association. 
z
HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of  
z
HDMI Licensing LLC.
The font used in the on-screen displays is a Ricoh bitmap font, which is\
 manufactured and sold by Ricoh 
 
z
Company, Ltd.
All other trademarks are the property of the various trademark owners. 
						

							Index
Appendix
ENGLISH - 59
Index
A
Accessories ................................... 10
ASPECT  ........................................ 33
AUDIO SETTING  ........................... 41
AUTO SETUP  .......................... 25, 37
AV MUTE  ....................................... 24
B
BACK COLOR  ............................... 37
BRIGHTNESS  ............................... 30
C
Cautions on use ............................... 9
Cautions when installing  .................. 8
Cautions when transporting  ............. 8
Cleaning and maintenance  .............. 9
Cleaning the projector  ................... 47
CLOCK PHASE  ............................. 32
COLOR  .......................................... 30
COLOR TEMPERATURE  ..............30
Connections ................................... 17
Contents  .......................................... 4
CONTRAST  ................................... 30
CONTROL DEVICE SETUP  .......... 44
D
DAYLIGHT VIEW  ........................... 31
DEFAULT  ....................................... 25
Dimensions  .................................... 58
DISPLAY OPTION menu  ...............36
Disposal  ........................................... 9
DOT CLOCK  .................................. 32
E
EMULATE  ...................................... 40
Enlarging the image .......................26
F
FRAME LOCK  ............................... 34
FREEZE  ........................................ 24
FUNCTION BUTTON  ..............26, 41
H
HIGH  ALTITUDE  MODE  .............. 39
I
Important Safety Notice  ...................2
INDEX-WINDOW  ...........................25
INITIALIZE ALL  .............................. 42
INITIAL START UP  ........................ 39
INSTALLATION  ............................. 39
K
KEYSTONE  ................................... 32
L
LAMP indicator  .............................. 46
LAMP POWER  .............................. 40
LAMP RUNTIME  ...........................40
LANGUAGE menu .........................35
LAN terminal  .................................. 54
List of compatible signals  .............. 52M
Main menu
 ..................................... 28
MENU LOCK  ................................. 44
MENU LOCK PASSWORD  .....44, 54
Menu Navigation ............................ 27
N
Navigating through the MENU  ....... 27
NETWORK menu  ..........................45
NOISE REDUCTION  .....................31
NO SIGNAL SHUT-OFF  ................ 39
O
ON-SCREEN DISPLAY  ................. 36
ON-SCREEN MENU  ..................... 28
OTHER FUNCTIONS  ....................38
OVER SCAN  ................................. 33
P
PASSWORD  .................................. 43
PASSWORD CHANGE  .................43
PICTURE menu  ............................. 30
PICTURE MODE  ...........................30
Positioning the image  .................... 23
POSITION menu  ...........................32
Power cord  .................................... 19
POWER indicator status  ................20
POWER LOCK indicator status  .....20
Projection method ..........................16
Projector body  ............................... 12
PROJECTOR SETUP menu  .........39
R
Read this first ................................. 11
REALTIME KEYSTONE  ................32
Remote control  .............................. 14
Replacing the Lamp unit  ................ 48
RGB/YP
BPR  ................................... 31
S
Screen size and throw distance .....15
Security............................................ 9
SECURITY menu  ..........................43
Selecting the input signal ...............23
Serial terminal................................ 53
SHARPNESS  ................................ 30
SHIFT  ............................................ 32
SHIFT V  ......................................... 32
SIGNAL SEARCH  .........................37
Specifications  ................................ 55
STANDBY MODE  ..........................40
STARTUP LOGO  ........................... 37
STATUS  ......................................... 39
STILL MODE  ................................. 31
Sub-menu  ...................................... 28
Switching off the projector  .............22
Switching on the projector  ............. 21
Switching the input signal  .............. 24
SXGA MODE  ................................. 38T
TEMP indicator
 .............................. 46
TEST PATTERN  ............................ 42
TEXT CHANGE  ............................. 43
TEXT DISPLAY ..............................
43
Throwing angle  .............................. 16
TINT  ............................................... 30
Troubleshooting  ............................. 51
TV-SYSTEM  .................................. 31
V
VOLUME  ....................................... 25
W
WHITE BALANCE  .........................30
WIDE MODE  ................................. 38 
						

							Avis important concernant la sécurité
60 - FRANÇAIS
Informations importantesCher client Panasonic:
Il est important de lire et comprendre les informations suivantes car el\
les fournissent des détails qui vous permettront 
d’utiliser le projecteur sans danger pour vous et votre environnement\
, conformément aux dispositions légales  
rela-tives à l’utilisation de projecteurs. Avant de brancher, utiliser ou régler ce projecteur, veuillez lire toute la   
notice puis la conserver avec le projecteur pour vous y référer ul\
térieurement. Nous espérons qu’elle vous aidera 
à optimiser l’utilisation de votre nouveau produit et que vous ser\
ez satisfait de votre projecteur LCD Panasonic.
Le numéro de série de votre produit se trouve sous le projecteur. 
Veuillez le noter dans l’espace ci-dessous prévu 
à cet effet et conserver cette notice en cas de maintenance requise.
Numéro de modèle: PT-LB90NTU/PT-LB90U/PT-LB78VU/PT-LB75VU
Numéro de série:
AVERTISSEMENT: POUR REDUIRE LES RISQUES DE FEU OU DE CHOC ÉLECTRIQUE, NE PAS  
EXPOSER CE PRODUIT À L’EAU OU À L’HUMIDITÉ.
Alimentation:Ce projecteur LCD est conçu pour fonctionner sur secteur de 100 V - 2\
40 V, 50 Hz/60 Hz 
seulement.
ATTENTION: Le cordon d’alimentation secteur fourni avec le projecteur peut êt\
re utilisé uniquement pour 
une alimentation électrique de 125 V, 7 A maximum. Si on veut l’utiliser avec une tension ou 
un courant plus forts, on doit se procurer un autre cordon d’alimenta\
tion de 250 V. Si on util-
ise le cordon fourni sous ces conditions, risque de provoquer un incendi\
e.
Le symbole de la flèche en forme d’éclair, dans un triangle, avertit l’usager de la présence de 
«tensions dangereuses» à l’intérieur du produit qui peuvent être de force suffisante pour constituer 
un risque de choc électrique aux personnes.
Le point d’exclamation dans un triangle avertit l’usager de la pré\
sence d’instructions importantes 
concernant l’utilisation et l’entretien (réparation) dans la \
littérature accompagnant le produit.
ATTENTION:Cet appareil est équipé d’une fiche de courant à trois broches avec 
mise à la terre. Ne pas retirer la broche de mise à la masse de la fiche.
Cette fiche ne pourra être utilisée que dans une prise avec mise à la 
terre. Ceci est une précaution sécuritaire. S’il est impossible\
 d’insérer 
la fiche dans la prise, s’adresser à un électricien. Ne pas annuler la 
protection de la fiche à mise à la terre.
Ne pas retirer
Pursuant to at the directive 2004/108/EC, article 9(2)
Pursuant to at the directive 2005/32/EC amended by 2008/28/EC, article 1\
4
Panasonic Testing Center
Panasonic Service Europe, a division of Panasonic Marketing Europe GmbH
Winsbergring 15, 22525 Hamburg, F.R. Germany
NOTICE:
Ce produit possède une lampe à décharge haute intensité (DHI) qui contient du mercure. Son élimination 
 
•
peut être réglementée dans votre s à cause de considérati\
ons environnementales. Pour d’amples informa -
tions sur la mise au rebut ou le recyclage, veuillez contacter vos autor\
ités locales ou aller au site Web de 
l’Electronics Industries Alliance: http://www.eiae.org 
Avis important concernant la sécurité