Sim2 Multimedia RTX55H Switching on and OFF, Significant status signals are given in Table

4 SWITCHING ON AND OFF

The RTX system consists of the Display and the DigiOptic™ Image Processor (which is also the system control centre). The DigiOptic™ Image Processor sends commands to the Display and receives operating status information from the Display and function commands from the user. The system can be controlled from either the remote control (via the infrared sensors on the DigiOptic™ Image Processor and on the Display) or the keypad located on the rear of the Display. The two units have separate power supplies however: after connecting the unit to the electrical mains supply:

1)Set the two power switches to “I”; the DigiOptic™ Image Processor power switch is located on the external power supply unit (Fig. 7a), while the Display switch is on the rear panel (Fig. 7b).

2)Turn on the DigiOptic™ Image Processor by pressing the button on the front panel (Fig. 7c).

I

O

I

O

Fig. 7a

Fig. 7b

D
IGIOPTI
C ™	IMAGE
		PRO
			CESSOR
			ON
			OFF

Fig. 7c	IMAGE	SSOR
		PRO
		CE
		ON
		O
		FF

After a few seconds (system initialisation interval), the DigiOptic™ Image Processor and the Display assume stand- by mode.

System status information is provided by two LEDs (green and blue) on the front panel of the DigiOptic™ Image Processor, a blue and green LEDS on the rear of the Display.

Significant status signals are given in Table 3.

Table	3
		DigiOptic™ Image	Display
Status		Processor
		Green LED Blue LED	Front LED	Keyboard pad
Off
Initialisation			-	-
Stand-by
On
Cooling			-	-
Optical link not active
Caution			-	-
Error			-	-
: Off	: On	: Flashing	- : Insignificant

If the “No optical link” or “Error” signals are active the system cannot be operated; if the “Warning” signal is active the system will operate but it may be unable to read certain input signals correctly.

SWITCHING ON FROM STAND-BY

Switching on the system (Fig.8):

•from the remote control (keys 0-9)

•from the Display keypad (keys ￿ and ￿).

Typically, the picture will appear after 15-20 seconds. Pressing a key from 1-9 on the remote control selects the corresponding input; pressing 0 selects the input active at the time the system was last switched off.

If the system is switched on very soon after it was last switched off, the lamp may fail to come on because it is too hot. In this case just wait a few minutes to allow the lamp to cool.

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