XV-Z21000 (serv.man11) - Sharp Projector User Guide / Operation Manual. Page 64

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Problem

Check

Page

The black levels of the 

image show banding 

or appear faded when 

HDMI1 or 2 is selected.

• Make adjustments that result in the best picture quality in the 

“Dynamic Range” setting.

44

Picture is too bright and 

whitish.

• Picture adjustments are incorrectly set.

36

The cooling fan

becomes noisy.

• When temperature inside the projector increases, the cooling 

fan runs faster.

–

The lamp does not light 

up even after the

projector turns on.

• The lamp indicator is illuminating in red.
  Replace the lamp.

46,49

The lamp suddenly turns 

off during projection.

The image sometimes 

fl ickers.

• Cables incorrectly connected to the projector or the connected 

equipment works improperly.

• If this happens frequently, replace the lamp.

18-24

   49

The lamp needs much 

time to turn on.

• The lamp will eventually need to be changed.
  While the remaining lamp life draws to a close, replace the 

lamp.

49

Picture is dark.

A response code cannot 

be received when the 

projector was attempted 

to be controlled using 

RS-232C commands 

from a computer during 

standby.

• In the case of transmitting RS-232C commands from a computer 

during standby, it takes a maximum of 30 seconds for the  computer 
to receive the response code. Set the response code waiting time of 
the computer to 30 seconds or more.

52

The remote control

cannot be used.

• Operate the remote control while pointing it at the projector’s 

remote control sensor.

• The remote control may be too far away from the projector.

• If direct sunlight or a strong fl uorescent light is shining on the 

projector’s remote control sensor, place the projector where it 
will not be affected by strong light.

11

11
11

• The batteries may be depleted or inserted incorrectly. Make 

sure the batteries are inserted correctly or insert new ones.

11

Troubleshooting (Continued)

This unit is equipped with a microprocessor. Its performance could be adversely affected by incorrect 
operation or interference. If this should happen, unplug the Unit and plug it in again after more than 
5 minutes.

XVZ21000_E_Ousyu_P52-67.indd   62

XVZ21000_E_Ousyu_P52-67.indd   62

2006/07/31   19:56:43

2006/07/31   19:56:43