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* Writing a software program (before main PWB is mounted)
Use the DLP Composer Lite Ver. 4.2 or higher to download the firmware.
After writing the specified version of firmware to the PWB using the RS232C cable, check the
version of the written firmware.
If no software program is written, all three LEDs light up in the chassis inspection process.

1. Calling and quitting the process mode with the control keys on this model.
. Although it is possible for the process OUT to exit using the process menu, the IN/OUT
toggle command is also available considering the existing specification.
1-1. 

Calling and quitting
With the menu not displayed, press the "ENTER", "ENTER", "VOL+", "VOL-",
"ENTER", "ENTER" and "MENU" keys on the remote control (one for C50/45 or
P25/20 system is also usable) or on the main unit.

1-2. Others

Press the S2551 process key (toggle) on the main PWB to call and quit the process
menu.

Note:  When adjusting in the process mode, set a signal with a vertical frequency of 60 Hz

or no signal. (May not be properly adjusted with other signals.)

2. Resetting the lamp timer for this model
2-1. Resetting 

procedure

In Stand-by, run this command to clear the operating time of the lamp to 0 and turn
on the power.
Press and hold """, "ENTER", and "MENU", and then press the "STANDBY/ON" key
of the set.

3. Forced disabling of the System-Lock of this model
3-1. Disabling 

procedure

With System-Lock input window onscreen, press the "MENU", "ENTER", "ENTER",
"MENU", "ENTER", "ENTER" and "MENU" keys, in this order, on the remote
controller.

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If shading shown in Figure 1 appears on the screen after replacing DMD, turn the adjustment
screw of the optical engine to adjust the lighting area of DMD.
1. Loosen the adjustment lever fixing screw 1. After adjusting the lighting area with the
adjustment lever 2, tighten the adjustment lever fixing screw 1.

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Many electrical and mechanical parts in Projector have special safety-related characteristics.
These characteristics are often not evident from visual inspection, nor can protection afforded
by them be necessarily increased by using replacement components rated for higher voltage,
wattage, etc.
Replacement parts which have these special safety characteristics are identified in the

service manual; electrical components having such features are identified by 

 and

shaded areas in the Replacement Parts Lists and Schematic Diagrams. For continued
protection, replacement parts must be identical to those used in the original circuit. The use of
a substitute replacement parts which do not have the same safety characteristics as the
factory recommended replacement parts shown in the service manual, may create shock, fire
or other hazards.

The light source, metal halide lamp, in the projector emits small amounts of UV-
Radiation.
AVOID DIRECT EYE AND SKIN EXPOSURE.
To ensure safety please adhere to the following:
1. Be sure to wear UV protective glasses when servicing the projector
with the lamp turned “on” and the top enclosure removed.

2. Do not operate the lamp outside of the lamp housing.

3. Do not operate for more than 2 hours with the enclosure
removed.

UV-Radiation and Medium Pressure
Lamp Precautions
1. Be sure to disconnect the AC plug when replacing the lamp.
2. Allow one hour for the unit to cool down before servicing.
3. Replace only with same type lamp. Type AN-100LP rated 275W.
4. The lamp emits small amounts of UV-Radiation, avoid direct-eye contact.
5. The medium pressure lamp involves a risk of explosion. Be sure to follow installation
instructions described in the Lamp Replacement Procedure and handle the lamp with care.