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...

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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...

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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...

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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...

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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...

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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...

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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...

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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...

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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.
Chapter 7   Appendix - Dimensions  

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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...