XG-MB70X (serv.man34). Appendix - Sharp Projector User Guide / Operation Manual. Page 8

Check

• Projector power cord is not plugged into the wall outlet.
• Power to the external connected devices is off.
• The selected input mode is wrong.
• The AV MUTE function is working.
• Cables incorrectly connected to rear panel of the projector.
• Remote control batteries have run out.
• External output has not been set when connecting notebook computer.
• The lamp unit cover is not installed correctly.
• Cables incorrectly connected to the rear panel of the projector.
• “Bright” is set to minimum position.

• Image adjustments are incorrectly set.
(Video Input only)
• Video input system is incorrectly set.
(INPUT 1, INPUT 2 only)
• Input signal type (RGB/Component) is incorrectly set.

• Adjust the focus.
• The projection distance exceeds the focus range.
(Computer Input only)
• Perform “Fine Sync” Adjustments. (“Clock” Adjustment)
• Perform “Fine Sync” Adjustments. (“Phase” Adjustment)
• Noise may appear depending on the computer.

• Cables incorrectly connected to rear panel of the projector.
• Volume is set to minimum.

• If the picture is normal, the sound is due to cabinet shrinkage

caused by room temperature changes. This will not affect
operation or performance.

• See “Maintenance Indicators”.

• The keylock is set.

If the keylock is set to ON, all the buttons are locked.

Problem

An unusual sound is

occasionally heard

from the cabinet.

Maintenance

indicator illuminates or

blinks in red.

The projector cannot be
turned on or put into the
standby mode using the

ON or STANDBY button

on the projector.

Page

29

—

33

34

23,25-28

15

69

67,68

23,25-28

44

44

51

47

32

19

48
48

—

23,25-28

33

—

64

55

Sound is heard but no

picture appears.

Color is faded or poor.

Picture is blurred;

noise appears.

Picture appears but no

sound is heard.

No picture and no sound

or projector does not start.

XG-MB70X_E_P70_75.p65

2004.8.6, 0:02 PM

70