Panasonic LCD Projector Pt Tw342 Operating Instructions

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Technical Information
Using the PJLink protocol
The network function of the projector supports PJLink class 1, and the PJLink protocol can be used to perform projector setting 
and projector status query operations from a computer.
Control commands 
The following table lists the PJLink protocol commands that can be used to control the projector.
 
f x characters in tables are non-specific characters.
Command Control details Parameter / return string Remark
POWRPower supply control 0
1 Standby
Power on
POWR ? Power supply status 
query 0
1
2
3 Standby
Power on
Cool-down in progress
Warm-up in progress
INPT Input selection 11
RGB1
12RGB2
21VIDEO
INPT ?
Input selection query 22
S-VIDEO
23COMPONENT
31HDMI
41MEMORY VIEWER
51USB DISPLAY
52NETWORK
AVMT
AV mute/Mute control 10
Video mute off
11 Video mute off
20 Audio mute off
AVMT ? AV mute/Mute status 
query 21
Audio mute off
30 AV mute off
31 AV mute off
ERST ? Error status query ×××××× 1st byte
Fixed at 0  
f 0 = No error known 
 
f 1 = Warning 
 
f 2 = Error
2nd byte Indicates lamp errors, 
range 0 – 2
3rd byte Indicates temperature 
errors, range 0 – 2
4th byte Fixed at 0
5th byte Fixed at 0
6th byte Fixed at 0
LAMP ? Lamp status query ××××××××××××
1st digits (1 – 5 digits) : Lamp cumulative operating time2nd digit : 0 = Lamp off, 1 = Lamp on
INST ? Input selection list 
query 11 12 21 22 23 31 41 51 52
NAME ? Projector name query PROJECTOR
INF1 ? Manufacturer name 
query Panasonic
Returns manufacturer name.
INF2 ? Model name query TW342 / TX402 / TX312 Returns model name.
INF0 ? Other information 
query ×××××
Returns information such as version number.
CLSS ? Class information 
query 1
Returns class for PJLink.
PJLink security authentication
The password used for PJLink is the same as that of the password set for web control.
When using the projector without security authentication, do not set a password for web control.
 
f For specifications related to PJLink, refer to the website of Japan Business Machine and Information System Industries 
Association.
URL http://pjlink.jbmia.or.jp/english/
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 terminal
The  terminal of the projector conforms with RS-232C so that the projector can be connected to and controlled 
from a computer.
Connection
Pin assignments and signal names
D-Sub 9-pin (female)Outside view Pin No.
Signal name Contents
—NC
TXDTransmitted data
RXD Received data
— NC
GND Earth
—NC
CTS
Connected internally
RTS
— NC
Communication conditions (Factory default)
Signal levelRS-232C-compliant
Sync. method Asynchronous
Baud rate 19 200 bps
Parity None
Character length 8 bits
Stop bit 1 bit
X parameter None
S parameter None
Connecting terminals on projector
D-Sub 9p (female) Computer
Communication cable (straight)
D-Sub 9p (male)
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Basic format
Transmission from the computer starts with STX, then the command, parameter, and ETX are sent in this order. Add 
parameters according to the details of control.
STXC1C2 C3 : P1 P2Pn ETX
Start (1 byte) 3 command characters (3 bytes) Colon(1 byte)
Parameter (undefined length) End (1 byte)
Basic format (with sub command)
S1S2S3S4S5 EP1P2P3P4P5P6
STX C1C2C3 :  ETX
Same as basic format
Sub command (5 bytes) Operation (1 byte)
“=” (Value specified using parameter is set)Parameter (6 bytes)*
1
Symbol “+” or “-” (1 byte) and set value or ad
-
justment value (5 bytes)
*1  When transmitting a command which does not need a parameter, the operation (E) and parameter are not necessary.
Attention
 
f If a command is transmitted after the lamp starts illuminating, there ma\
y be a delay in response or the command may not be 
executed. Try sending or receiving any command after 60 seconds.
 
f When transmitting multiple commands, be sure to wait until 0.5 seconds has elapsed after receiving the response from the 
projector before sending the next command. When transmitting a command which does not need a parameter , a colon (:) is 
not necessary.
Note
 
f If a command cannot be executed, the “ER401” response is sent from the projector to the computer .
 
f If an invalid parameter is sent, the “ER402” response is sent from the projector to the computer .
 
f STX and ETX are character codes. STX shown in hexadecimal is 02, and ETX shown in hexadecimal is 03.
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Cable specifications
[When connected to a computer] 
Projector
( terminal)
1NC NC1
Computer
(DTE specifications)
2 2
3 3
4
NC NC4
5 5
6
NC NC6
7 7
8 8
9
NC NC9
Control commands
When controlling the projector from a computer, the following commands are available.
 
r Projector control command
Command Control contents Parameter/return string Remark (parameter)
PON Power on
―To check if the power is on, use the “Power 
query” command.
POF Power standby
IIS Switching the input 
signal VID
VIDEO
SVD S-VIDEO
RG1 RGB1
RG2 RGB2
HD1 HDMI
CP1 COMPONENT
MV1 MEMORY VIEWER
UD1 USB DISPLAY
NWP NETWORK
AUU Volume up
AUD Volume down
OSH AV mute function ―Sending the command switches on/off. Do not 
switch on/off in a short period of time.
AMT Mute function 0
Off
1 On
QPW Power query 000
Standby
001 Power on
Q$S Lamp condition query 0
1
2
3 Stand-by
Lamp ON control active
Lamp ON
Lamp OFF control active
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List of compatible signals
The following table specifies the type of signals compatible with the projectors. 
f Symbols that indicate formats are as follows.  
V = VIDEO/S-VIDEO, R = RGB, Y =  YC
BCR/YPBPR, H = HDMI
ModeDisplay resolution
(dots) Scanning frequency
Dot clock 
frequency (MHz) Format*
1
PnP *2
H (kHz)
V (Hz)Computer 1/ 
Computer 2 HDMI
NTSC/NTSC4.43/ PAL-M/PAL60 720 x 480i
15.759.9 --V -- --
PAL/PAL-N/ SECAM 720 x 576i
15.650.0 --V -- --
525i (480i) 720 x 480i15.759.913.5 R/Y -- --
625i (576i) 720 x 576i15.650.013.5 R/Y -- --
525i (480i) 720 (1 440) x 480i*
315.759.927.0 H --l
625i (576i) 720 (1 440) x 576i*315.650.027.0 H --l
525p (480p) 720 x 48331.559.927.0R/Y/H --l
625p (576p) 720 x 57631.350.027.0R/Y/H --l
750 (720) /60p 1 280 x 72045.060.074.3R/Y/H --l
750 (720) /50p 1 280 x 72037.550.074.3R/Y/H --l
1125 (1080) /60i 1 920 x 1 080i33.860.074.3R/Y/H --l
1125 (1080) /50i 1 920 x 1 080i28.150.074.3R/Y/H --l
1125 (1080) /24p 1 920 x 1 08027.024.074.3R/Y/H --l
1125 (1080) /24sF 1 920 x 1 080i27.048.074.3R/Y/H -- --
1125 (1080) /25p 1 920 x 1 08028.125.074.3R/Y/H -- --
1125 (1080) /30p 1 920 x 1 08033.830.074.3R/Y/H -- --
1125 (1080) /60p 1 920 x 1 08067.560.0148.5 R/Y/H --
l
1125 (1080) /50p 1 920 x 1 08056.350.0148.5 R/Y/H --l
VGA 640 x 480
31.559.925.2 R/H
l l
640 x 480 35.066.730.2 R/H -- --
640 x 480 37.972.831.5 R/H
l l
640 x 480 37.575.031.5 R/Hl l
640 x 480 43.385.036.0 R/H -- --
SVGA 800 x 600
35.256.336.0 R/H
l l
800 x 600 37.960.340.0 R/Hl l
800 x 600 48.172.250.0 R/Hl l
800 x 600 46.975.049.5 R/Hl l
800 x 600 53.785.156.3 R/H -- --
MAC 16 832 x 62449.774.657.3 R/H
l l
XGA1 024 x 768
48.460.065.0 R/H
l l
1 024 x 768 56.570.175.0 R/Hl l
1 024 x 768 60.075.078.8 R/Hl l
1 024 x 768 68.785.094.5 R/H -- --
1152 x 864 1 152 x 86467.575.0108.0 R/H -- --
MAC 21 1 152 x 870 68.775.1100.0 R/H
l l
1280 x 720 1 280 x 720
37.149.860.5 R/H -- --
1 280 x 720 44.859.974.5 R/H -- --
1280 x 768 1 280 x 768
47.859.979.5 R/H -- --
1 280 x 768 60.374.9102.3 R/H -- --
1 280 x 768 68.684.8117.5 R/H -- --
1280 x 800 1 280 x 800
41.350.068.0 R/H -- --
1 280 x 800 49.759.883.5 R/H
l l
1 280 x 800 62.874.9106.5 R/H -- --
1 280 x 800 71.684.9122.5 R/H -- --
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ModeDisplay resolution
(dots) Scanning frequency
Dot clock 
frequency (MHz) Format*
1
PnP *2
H (kHz)
V (Hz)Computer 1/ 
Computer 2 HDMI
1280 x 960 1 280 x 96060.060.0108.0 R/H
l l
SXGA1 280 x 1 024
64.060.0108.0 R/H
l l
1 280 x 1 024 80.075.0135.0 R/Hl l
1 280 x 1 024 91.185.0157.5 R/H -- --
1366 x 768 1 366 x 768
39.649.969.0 R/H -- --
1 366 x 768 47.759.885.5 R/H -- --
1400 x 1050 1 400 x 1 050
65.360.0121.8 R/H -- --
1 400 x 1 050 82.374.9156.0 R/H -- --
1440 x 900 1 440 x 90055.959.9106.5 R/H -- --
1600 x 900 1 600 x 900
55.960.0119.0 R/H -- --
1 600 x 900*
460.0 60.0108.0 R/Hl l
UXGA1 600 x 1 200 75.060.0162.0 R/Hl l
1680 x 1050 1 680 x 1 050 65.360.0146.3 R/H -- --
1920 x 1080 1 920 x 1 080*
466.659.9138.5 R/H -- --
WUXGA 1 920 x 1 200*
474.060.0154.0 R/H -- --
*1   terminal is only for RGB signals input.
*2  Where marked "
l" signals indicates in Plug and Play is compatible with EDID of projector . Unmarked signals in Plug and 
Play may also be compliant if input terminals are written in the format list. Where Plug and Play is unmarked and nothing is 
written in the format list, difficulties in projecting image may occur even when computer and projector appear to have same 
resolution. 
*3  Pixel-Repetition signal (dot clock frequency 27.0 MHz) only.
*4  VESA CVT-RB (Reduced Blanking)-compliant.
Note
 
f The number of display dots is 1 280 x 800 for the PT-TW342 and 1 024 x 768 for the PT-TX402 and PT-TX312. 
A signal with a different resolution will be projected after converting the resolution to m\
atch the projector display.
 
f “i” added to the resolution value indicates an interlaced signal.
 
f When interlaced signals are connected, flicker may occur on the projected image.
 
f The image may not be displayed in full screen according to the computer \
output setting.
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Specifications
The specifications of the projector are as follows.
Power supply100 V - 240 V  (100 V - 240 V alternating current), 50 Hz/60 Hz
Power consumption  3.5 A, 300 W
In standby mode (when [Standby mode] is set to [Eco]): 0.5 W
In standby mode (when [Standby mode] is set to [Normal]): 6 W
LCD 
panel Panel size
PT-TW342
1.5 cm (0.59") (aspect ratio 16 : 10)
PT-TX402, PT-TX312 1.6 cm (0.63") (aspect ratio 4 : 3)
Display method 3 transparent LCD panels (RGB)
Drive method Active matrix method
Pixels PT-TW342
1 024 000 pixels (1 280 x 800 dots) x 3 panels
PT-TX402, PT-TX312
786 432 pixels (1 024 x 768 dots) x 3 panels
Lens Zoom
Fixed-focus
Focus F 1.8, f 6.08 mm 
Luminous lamp 230 W UHM lamp 
Light output *
1
PT-TW342 3 300 lm
PT-TX402 3 800 lm
PT-TX312 3 200 lm
Contrast ratio *
112 000 : 1 (When [Lamp control] is set to [  (Normal)], [Image mode] is set to [Dynamic] 
and [Iris] is set to [On].)
Appli -
cable 
scanning 
frequen-
cy *
2
for Video signal 
(including   
S-video) Horizontal : 15.73 kHz, Vertical : 59.94 Hz
Horizontal : 15.63 kHz, Vertical : 50.00 Hz
for RGB signal Horizontal 15 kHz - 91 kHz, Vertical 24 Hz - 85 Hz
Dot clock frequency: 162 MHz or less
for YP
BPR signal 525i(480i) 
Horizontal 15.73 kHz, Vertical 59.94 Hz
625i(576i)  Horizontal 15.63 kHz, Vertical 50 Hz
525p(480p)  Horizontal 31.47 kHz, Vertical 59.94 Hz
625p(576p)  Horizontal 31.25 kHz, Vertical 50 Hz
750(720)/60p  Horizontal 45.00 kHz, Vertical 60 Hz
750(720)/50p  Horizontal 37.50 kHz, Vertical 50 Hz
1125(1080)/60i  Horizontal 33.75 kHz, Vertical 60 Hz
1125(1080)/50i  Horizontal 28.13 kHz, Vertical 50 Hz
1125(1080)/60p  Horizontal 67.50 kHz, Vertical 60 Hz
1125(1080)/50p  Horizontal 56.25 kHz, Vertical 50 Hz
1125(1080)/24p  Horizontal 27.00 kHz, Vertical 24 Hz
1125(1080)/24sF  Horizontal 27.00 kHz, Vertical 48 Hz
1125(1080)/25p  Horizontal 28.13 kHz, Vertical 25 Hz
1125(1080)/30p  Horizontal 33.75 kHz, Vertical 30 Hz
for HDMI signal 525i(480i)
*
3, 625i(576i) *3, 525p(480p), 625p(576p), 750(720)/60p, 750(720)/50p, 
1125(1080)/24p, 1125(1080)/24sF, 1125(1080)/25p, 1125(1080)/30p, 1125(1080)/60p,   
1125(1080)/50p, 1125(1080)/60i, 1125(1080)/50i
Displayable resolution: VGA - WUXGA (non-interlace)
Dot clock frequency: 25 MHz to 162 MHz  
Color system 7 (NTSC, NTSC4.43, PAL, PAL-N, PAL-M, SECAM, PAL60)
Projection size 1.27 m -2.54 m (50"-100")
Screen aspect ratio PT-TW342
16:10
PT-TX402, PT-TX312 4:3
Projection scheme [Front], [Rear], [Ceiling/Front], [Ceiling/Rear] (Menu setting system)
Built-in speaker 10 W (monaural) x 1
*1  Measurement, measuring conditions and method of notation all comply with ISO21 118 international standards.
*2  For details of video signals that can be projected using this projector , refer to “List of compatible signals”.  
(
x page 105)
*3  Pixel-Repetition signal (dot clock frequency 27.0 MHz) only
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Termi-
nals
1 (High-density D-sub 15 pin female)
[RGB signal] 
0.7 V [p-p] 75 Ω
 
HD/SYNC TTL high impedance, automatic positive/negative polarity compatible
  VD TTL high impedance, automatic positive/negative polarity compatible
  (HD/SYNC and VD do not support 3 value SYNC.)
[YP
BPR signal]  Y: 1.0 V [p-p] including synchronization signal, PBPR: 0.7 V [p-p] 75 Ω
[Y/C signal]  Y: 1.0 V [p-p] C: 0.286 V [p-p] 75 Ω S1 signal compatible
 1 (High-density D-sub 15 pin female)
[RGB signal] 
0.7 V [p-p] 75 Ω
 
HD/SYNC TTL high impedance, automatic positive/negative polarity compatible
  VD TTL high impedance, automatic positive/negative polarity compatible
  (HD/SYNC and VD do not support 3 value SYNC.)
 1 (High-density D-sub 15 pin female)
[RGB signal] 
0.7 V [p-p] 75 Ω
  HD/SYNC TTL high impedance, positive/negative polarity compatible
  VD TTL high impedance, positive/negative polarity compatible
 1 (Pin jack 1.0 V [p-p] 75 Ω)
 1 (HDMI 19 pin, HDCP and Deep color compatible)
Audio signals: Linear PCM (Sampling frequency: 48 kHz/44.1 kHz/32 kHz)
 1 (M3 stereo mini jack, 0.5 V [rms], input impedance 22 kΩ and more)
1 (Pin jack x 2 (L-R), 0.5 V [rms], input impedance 22 kΩ and more)
 1 (M3 stereo mini jack, stereo monitor output compatible,
0 V [rms] to 2.0 V [rms] variable, output impedance 2.2 kΩ and less)
 USB connector (type A x 1, output DC 5 V, 500 mA maximum)
Memory Viewer / Wireless module (Model No.: ET-WML100) compatible
 USB connector (type B x 1), only for USB Display 
 1 (D-sub 9 pin, RS-232C compliant, for computer control use)
 1 (for RJ-45 network connection, PJLink compatible, 10Base-T/100Base-TX)
Power cable length 3.0 m (118-3/32") 
Cabinet Molded plastic
Dimensions Width: 335 mm (13-3/16")
Height: 134.1 mm (5-9/32") (when adjustable feet shortened)
Depth: 329 mm (12-15/16") 
Weight Approx.3.9 kg (8.60 lbs.) *
4
Noise level *5When set to [  (Normal)] in [Lamp control] : 37 dB
When set to [ 
 (Eco 1)] in [Lamp control] : 33 dB
When set to [ 
 (Eco 2)] in [Lamp control] : 28 dB
Operating 
environ-
ment
Operating   
environment 
temperature  *
6
5 °C (41 °F) to 40 °C (104 °F) (Elevation: below 1 400 m (4 593'); [High land]: [Of f])
5 °C (41 °F) to 35 °C (95 °F) (Elevation: 1 400 m (4 593') ~ 2 700 m (8 858'); [High land]: [On 1])
5 °C (41 °F) to 30 °C (86 °F) (Elevation: 2 700 m (8 858') ~ 3 000 m (9 843'); [High land]: [On 2])
Operating  
environment 
humidity 20 % to 80 % (no condensation)
Remote 
control Power supply
DC 3 V (AAA/R03/LR03 battery x 2)
Operating range Approx. 5 m (16'4-13/16") (when operated directly in front of receptor)
Weight 63 g (2.22 ozs.) (including batteries)
Dimensions Width : 44 mm (1-23/32"), Length : 105 mm (4-1/8"), Height :20.5 mm (13/16")
*4 This is an average value. It may differ depending on individual product.
*5  Measurement, measuring conditions and method of notation all comply with ISO21 118 international standards.
*6  [Lamp control] will be switched to [
 (Eco 1)] automatically when [High land] is set to [Off] and the operating environment 
temperature is 35 °C to 40 °C. 
[Lamp control] will be switched to [
 (Eco 1)] automatically when [High land] is set to [On 1] or [On 2] and the operating 
environment temperature is 30 °C to 35 °C.
Note
 
f The part numbers of accessories and separately sold components are subje\
ct to change without notice.
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Dimensions

63 (2-15/32)57 (2-1/4)
68.5 (2-11/16)
335 (13-3/16) 124.3 (4-29/32)
329 (12-15/16)
9.8 (12/32)
97 (3-13/16)
87.5 (3-7/16)
134.1 (5-9/32)
167.5 (6-19/32)
 Actual dimension may differ by product.
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Ceiling mount bracket safeguards
 
f When installing the projector to a ceiling, be sure to use the specified optional Ceiling Mount Bracket for Projectors.  
Model No.: ET-PKL100H (for high ceilings), ET-PKL100S (for low ceilings), ET-PKL430B (Projector Mount Bracket)
 
f When installing the projector, attach the drop-prevention kit included with the Ceiling Mount Bracket for Projectors.
 
f Ask a qualified technician to do the installation work such as mounting the projector on the ceiling.
 
f Panasonic takes no responsibility for any damage to the projector result\
ing from use of a ceiling mount bracket not 
manufactured by Panasonic or the inappropriate choice of location for in\
stallation, even if the warranty period of the projector 
has not expired.
 
f Unused products must be removed promptly by a qualified technician.
 
f Use a torque screwdriver or Allen torque wrench to tighten bolts to their specified tightening torques. Do not use electric 
screwdrivers or impact screwdrivers.
 
f Read the Installation Instructions for the Ceiling Mount Bracket for Projectors for details.
 
f The model numbers of accessories and optional accessories are subject to\
 change without prior notice.
Bottom View
Model No. of Ceiling mount bracket: ET-PKL100H (for high ceilings)
 ET-PKL100S (for low ceilings) 
 ET-PKL430B (Projector mount bracket)
M4 × 0.7
10 mm (13/32”)
Torque: M4 1.25 ± 0.2 N·m
Chapter 7   Appendix - Ceiling mount bracket safeguards