Engine Mount Adjustment Preparation; Engine Mount Adjustment - Toshiba P503DL Service Manual

Data wall projection unit

Table of Contents

(1)

Locate the screw at the lens barrel to adjust focus

(2)

Rotate thumb screw to counter clockwise, then move the screw head to and fro to rotate so that

lens focus can be adjusted.

(3)

Tighten the same screw to clockwise to fix the adjustment.

(4)

Engine mount adjustment preparation

(5)

Before doing Engine Mount mechanical adjustment, it is better to adjust an electronic position

adjustment at the center.

Use remote control or Cube adjustment software and enter Adjust mode, then perform H-V position

adjustment, then place at the center of the range so that electronically, it is at the center.

1) Use internal test signal, TEST.P #07, thus full frame cross-hatch image appears on the screen

2) Left to Right Trapezoid adjustments can be performed by rotating (H) screw.

By doing this Adjustment, horizontal position will move but disregard its movement of position.

Obtain parallel image at top and bottom, then re-adjust position after this trapezoid adjustment.

When top/bottom parallel adjustment is done, tighten (J) screw.

(H)

3) Top to Bottom Trapezoid can be compensated by the small mirror at (G1) (G2) screws.

The picture is on the next page.

There are total of 8 screws which are not so much touching to the mirror and these screws

Will add mirror bend thus the image distortion can be compensated but this top/bottom is

Basically done by these G1 and G2 screws. Adjust the image by rotating the screw so that left

and right becomes parallel.

By doing this adjustment, vertical position will change but do not worry about position

displacement. Obtaining parallel at right/left is important, then adjust position.

(G1)

(I)

Image movement is shown when observed from behind of the set.

(G2)

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ADJUSTMENT

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