Using the Serial connector

The serial connector which is on the side connector panel of the projector conforms to the RS-232C interface specification, so that the projector can be controlled by a personal computer which is connected to this connector.

Control commands

The commands which the personal computer can use to control the projector are shown in the following table.

Command	Control	Remarks
	Contents

Connection

Computer

SERIAL(female)

D-Sub9p (male)

Communication cable

NOTE:

BUse a proper communication cable which is suitable for the personal computer to connect the serial connector and the personal computer.

Pin layout and signal names for SERIAL connector

6 9

Communications settings

Signal level	RS-232C

Sync. method	Asynchronous

Baud rate	9600 bps

Parity	None

Character length	8 bits

Stop bit	1 bit

X parameter	None

S parameter	None

Basic format

The data sent from the computer to the projector is transmitted in the format shown below.

STX Command : Parameter ETX



Start byte		1 byte	End byte
(02h)			bytes (03h)
	3 bytes	1 byte–5

		In standby mode, all commands other than
PON	Power ON	the PON command are ignored.
PON	Power ON	BThe PON command is ignored during
		BThe PON command is ignored during
		lamp ON control.
		BIf a PON command is received while the
		BIf a PON command is received while the
		cooling fan is operating after the lamp
POF	Power OFF	has switched off, the lamp is not turned
POF	Power OFF	back on again straight away, in order to
		back on again straight away, in order to
		protect the lamp.

AVL	Volume	Parameter
AVL	Volume	000–063(Adjustment value 0–63)
		000–063(Adjustment value 0–63)

	Input signal	Parameter
IIS	Input signal	VID=VIDEO	SVD=S-VIDEO
IIS	selection	VID=VIDEO	SVD=S-VIDEO
	selection	RG1=RGB1(YPBPR1) RG2=RGB2(YPBPR2)
		RG1=RGB1(YPBPR1) RG2=RGB2(YPBPR2)

		Parameter
	Lamp ON	0 = Standby
Q$S	Lamp ON	1 = Lamp ON control active
Q$S	condition query	1 = Lamp ON control active
	condition query	2 = Lamp ON
		2 = Lamp ON
		3 = Lamp OFF control active

Operation

1 5

D-SUB 9-pin connector seen from outside

Pin	Signal	Contents
No.	name	Contents
No.	name

#		NC

$	TXD	Transmitted data

%	RXD	Received data

&		Connected internally

'	GND

(		NC

)	CTS	Connected internally

*	RTS
*	RTS

+		NC

NOTE:

BThe projector can not receive the command for 10 seconds after the lamp is switched on. Wait 10 seconds before sending the command.

BIf sending multiple commands, check that a response has been received from the projector for one command before sending the next command.

BWhen a command which does not require parameters is sent, the colon (:) is not required.

BIf an incorrect command is sent from the personal computer, the “ER401” command will be sent from the projector to the personal computer.

Cable specifications

(When connected to a personal computer)

At the computer

At the projector			(DTE specifications)
			(DTE specifications)

	1	NC	NC	1

	2			2
	2			2

	3			3
	3			3

	4	NC	NC	4
	4	NC	NC	4

	5			5
	5			5

	6	NC	NC	6

	7			7
	7			7

	8			8
	8			8

	9	NC	NC	9

Advanced

40-ENGLISH

ENGLISH-41

PT-LC55E, PT-LC75E specifications

The Panasonic PT-LC55E is an advanced LCD projector designed to deliver exceptional performance and versatility for various applications, including educational settings, corporate environments, and home entertainment. With its compact design, this projector combines portability with powerful features, making it an ideal choice for users seeking high-quality projection solutions.

One of the standout features of the PT-LC55E is its impressive brightness, which is rated at 2600 ANSI lumens. This high lumen output ensures that images remain vivid and clear, even in well-lit environments. The projector achieves excellent color accuracy and brightness uniformity, providing viewers with a superior visual experience. The native resolution of the PT-LC55E is XGA (1024x768), which allows for crisp and detailed images, making it suitable for displaying presentations, videos, and high-resolution graphics.

The PT-LC55E employs advanced LCD technology to produce sharp and vibrant images. This technology contributes to the projector's wide color gamut, ensuring that colors appear rich and lifelike. Additionally, the incorporation of a dynamic iris enhances contrast ratios, resulting in deeper blacks and brighter whites, which further enriches the overall viewing experience.

Connectivity options are varied and user-friendly, featuring HDMI, VGA, and composite video inputs, along with audio outputs. This range of connectivity ensures compatibility with a wide array of devices, including laptops, DVD players, and gaming consoles. The projector also includes a USB port, allowing for easy access to media files and seamless presentation capabilities.

The PT-LC55E is designed with convenience in mind, featuring a quick start-up and shut-down process that enhances usability. The built-in speakers provide adequate audio output for small to medium-sized rooms, eliminating the need for external audio systems in casual settings. For more demanding audio requirements, users can easily connect external sound systems.

An additional noteworthy characteristic of the PT-LC55E is its long lamp life, which can last up to 5000 hours in Eco mode. This longevity not only reduces maintenance costs but also contributes to the projector's eco-friendliness. Furthermore, the model is equipped with a filter that minimizes dust accumulation, ensuring optimal performance over time.

Ultimately, the Panasonic PT-LC55E stands out as a reliable, feature-rich projector that excels in various environments. Its combination of brightness, color accuracy, and ease of use make it an excellent choice for any presentation or entertainment needs. Whether for business meetings or educational purposes, the PT-LC55E offers an exceptional projection experience that is bound to impress.