Panasonic LCD Projector Pt Tw340 Operating Instructions

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Troubleshooting
Please check following points. For details, see the corresponding pages.
ProblemCauseReference 
page
Power does not turn on.
 fThe power cord may not be connected.
 fNo electric supply is at the wall outlet.
 fThe circuit breakers have tripped.
 fIs the power indicator  or the warning indicator 
 indicator lit or blinking?
 fThe lamp cover has not been securely installed.
—
—
—
84
89
No picture appears.
 fThe video signal input source may not be connected to a terminal...

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Chapter 6   Appendix
This chapter describes specifications and after-sales service for the projector.  

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Technical Information
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.
 fx characters in tables are non-specific characters.
CommandControl detailsParameter / return stringRemark
POWRPower supply control01StandbyPower on
POWR...

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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 viewPin No.Signal nameContents
—NC
TXDTransmitted data
RXDReceived data
—NC
GNDEarth
—NC
CTSConnected internallyRTS
—NC
Communication conditions (Factory default)
Signal levelRS-232C-compliant
Sync. methodAsynchronous
Baud rate19 200 bps
ParityNone
Character length8 bits
Stop bit1...

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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)
1NCNC1
Computer
(DTE specifications)
22334NCNC4556NCNC677889NCNC9
Control commands
When controlling the projector from a computer, the following commands are available.
 rProjector control command
CommandControl contentsParameter/return stringRemark (parameter)
PONPower on―To check if the power is on, use the “Power 
query” command.POFPower standby
IISSwitching the input 
signal
VID
SVD
RG1
RG2
HD1
CP1
MV1
UD1
VIDEO...

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List of compatible signals
The following table specifies the type of signals compatible with the projectors.
 fSymbols that indicate formats are as follows. 
V = VIDEO/S-VIDEO, R = RGB, Y = YCBCR/YPBPR, H = HDMI
ModeDisplay resolution
(dots)
Scanning frequencyDot clock frequency (MHz)Format*1
PnP *2
H (kHz)V (Hz)Computer 1/ 
Computer 2HDMI
NTSC/NTSC4.43/
PAL-M/PAL60720 x 480i15.759.9--V----
PAL/PAL-N/
SECAM720 x 576i15.650.0--V----
525i (480i)720 x 480i15.759.913.5R/Y----
625i (576i)720 x...

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ModeDisplay resolution
(dots)
Scanning frequencyDot clock frequency (MHz)Format*1
PnP *2
H (kHz)V (Hz)Computer 1/ 
Computer 2HDMI
MSXGA1 280 x 96060.060.0108.0R/Hll
SXGA
1 280 x 1 02464.060.0108.0R/Hll
1 280 x 1 02478.272.0135.1R/H----
1 280 x 1 02480.075.0135.0R/Hll
1 280 x 1 02491.185.0157.5R/H----
1366 x 7681 366 x 76839.649.969.0R/H----
1 366 x 76847.759.884.8R/H----
SXGA +1 400 x 1 05065.360.0121.8R/H----
1 400 x 1 05082.374.9156.0R/H----
WXGA +1 440 x 90055.959.9106.5R/H----
1600 x...

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Specifications
The specifications of the projector are as follows.
Power supplyAC100 V - 240 V, 50 Hz/60 Hz
Power consumption
100 V - 240 V, ~3.5 A, 300 W
When [Standby mode] of [Setting] is set to [Eco]: 0.5 W
When [Standby mode] of [Setting] is set to [Normal]: 6 W 
LCD 
panel
Panel sizePT-TW340, PT-TW2501.5 cm (0.59”) (aspect ratio 16 : 10)
PT-TX400, PT-TX310, PT-TX2101.6 cm (0.63”) (aspect ratio 4 : 3)
Display method3 transparent LCD panels (RGB)
Drive methodActive matrix method...

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Built-in speakerPT-TW340, PT-TW250, PT-TX400, PT-TX31010 W (monaural) x 1
PT-TX2102 W (monaural) x 1
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
[YPBPR 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
*3
1...