Ask Proxima C170 Manuel de service télécharger pdf (Page 12)

Nacho Family Service Manual 12

Image Problems

The image is not correct.

The projector starts and runs normally.

The menus are accessible. The lamp is lit.

No video image

Bad or missing tint or color

Missing logo, VGA, composite video, or S-video

Distorted image, noisy, rolling, torn, frozen,

'plaid', repeated, or shifted image

Flash the projector

with the latest software.

Confirm that all image

adjustments are set to the

factory defaults. Select

Factory Reset from the

Settings > Service menu.

Confirm that the cables and the

source signals are good. Make

sure the signal is good.

What is the

problem?

Dim image

Replace the

controller ECA

(page 44)

Replace the

optical engine

(page 48)

Replace the color wheel assembly.

(page 40)

Substitute known

good lamp

Substitute a known

good controller

ECA.

(page 44)

Replace the

optical engine.

(page 52)

No computer image.

Vertical or horizontal

lines.

Sparkly picture.

Clusters of dark pixels.

Replace the I/O

ECA

(page 44)

Replace the

controller ECA

(page 44)

Replace the

optical engine

(page 52)

Image banding

Adjust the

horizontal or

vertical banding

(page 17)

Replace the

optical engine.

(page 52)

Replace the controller ECA.

(page 44)

Replace the light

tunnel

(page 58)

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