DOWNLOAD Sharp XG-MB67X (serv.man18) Service Manual ↓ Size: 4.22 MB | Pages: 69 in PDF or view online for FREE

• Loosen the securing screws from the

lamp unit. Hold the lamp unit by the
handle and pull it in the direction of the
arrow. At this time, keep the lamp unit
horizontal and do not tilt it.

Reset the lamp timer after replacing the lamp.

• Press the lamp unit firmly into the lamp

unit compartment. Fasten the securing
screws.

• Align the tab on the lamp unit cover

(1)and place it while pressing the tab
(2) to close it. Then tighten the user ser-
vice screw to secure the lamp unit cover.

• Plug the power cord into the AC socket

of the projector.

• While simultaneously holding down

UMENU/HELP, TENTER and R on the
projector, press SSTANDBY/ON on the
projector.

• “LAMP 0000H” is displayed, indicating

that the lamp timer is reset.

• Make sure to reset the lamp timer only when

replacing the lamp. If you reset the lamp timer
and continue to use the same lamp, this may
cause the lamp to become damaged or ex-
plode.

AC socket

Securing screws

Handle

ENTER button

MENU/HELP
button

R button

• If the lamp unit and lamp unit cover are

not correctly installed, the power will not
turn on, even if the power cord is con-
nected to the projector.

STANDBY/ON
button

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• When this projector receives 640K350 VESA format VGA signals, “640K400” appears on the screen.
• Optimum image quality will be achieved by matching your computer’s output resolution to the

projector’s native resolution (1024 x 768).

• Multiple signal support

Horizontal Frequency: 15-70 kHz,
Vertical Frequency: 45-85 Hz,
Pixel Clock: 12-108 MHz
Sync signal:Compatible with TTL level

• Compatible with sync on green signal
The following is a list of modes that conform to VESA. However, this projector supports other
signals that are not VESA standards.

27.0
31.5
37.5
27.0
31.5
37.9
27.0
31.5
27.0
31.5
37.9
26.2
31.5
34.7
37.9
37.5
43.3
31.4
35.1
37.9
46.6
48.1
46.9
53.7
40.3
48.4
56.5
60.0
68.7
55.0
66.2
67.5
64.0
64.0
34.9
37.8
49.7
60.2
68.7

60
70
85
60
70
85
60
70
60
70
85
50
60
70
72
75
85
50
56
60
70
72
75
85
50
60
70
75
85
60
70
75
60
60
67
60
75
75
75

640 

× 350

640 

× 400

720 

× 350

720 

× 400

640 

× 480

800 

× 600

1,024 

× 768

1,152 

× 864

1,280 

× 1,024

1,400 

× 1,050

640 

× 480

800 

× 600

832 

× 624

1,024 

× 768

1,152 

× 870

MAC 13"

MAC 16"

PC

VGA

SVGA

XGA

SXGA

SXGA+

VGA

XGA

SXGA

✔

✔

✔

✔

✔

✔

✔

✔

✔

✔

✔

✔

✔

✔

✔

✔

✔

✔

PC/MAC

MAC 19"
MAC 21"

SVGA

Signal

480I

480P

540P

576I

576P

720P

1035I

1035I

1080I

1080I

Horizontal Frequency (kHz)

15.7

31.5

33.8

15.6

31.3

45.0

28.1

33.8

28.1

33.8

Vertical Frequency (Hz)

60

60

60

50

50

60

50

60

50

60

• Compatible with the signals below in

intelligent compression: SXGA, SXGA+

• Intelligent Compression and Expansion

System resizing technology

Resolution

Horizontal Frequency

(kHz)

Vertical Frequency

(Hz)

VESA Standard

Display

Upscale

True

Intelligent Compression

Upscale

Intelligent Compression

True

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58

No picture and no sound

or projector does not

start.

Sound is heard but no

picture appears (or picture

is dark).

Color is faded or poor.

Picture is blurred;

noise appears.

Picture appears but no

sound is heard.

An unusual sound is

occasionally heard from

the cabinet.

Maintenance indicator on

the projector illuminates

or blinks in red.

Problem

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.

• Cables incorrectly connected to the projector.

• Remote control battery has 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 projector.

• “Bright” is set to minimum position.

• Depending on the computer you are using, an image may not be

projected unless the signal output setting of the computer is
switched to the external output. Refer to the computer’s operation
manual for how to switch its signal output settings.

• Image adjustments are incorrectly set.
• Make adjustments of “Color” and “Tint” in “Picture Mode” and lower

the “Bright Boost” value.

(Video Input only)

• Video input system 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 the projector.

• Volume is set to minimum.
• When the projector is connected to an external device and the

volume is set to minimum, the sound is not output even if you turn up
the volume of the external device.

• “Speaker" is set to “Off”.

• 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”.

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The projector cannot be
turned on or put into the

standby mode using the
STANDBY/ON button on

the projector.

• The keylock is set.

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

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Problem

Picture is green on

INPUT 1 (COMPONENT)/
INPUT 2 (COMPONENT).

Picture is pink (no green)

on INPUT 1 (RGB)/INPUT

2 (RGB).

Picture is too bright and

whitish.

The cooling fan becomes

noisy.

The lamp does not light

up even after the

projector turns on.

The lamp suddenly turns

off during projection.

The image sometimes

flickers.

The lamp needs much

time to turn on.

Picture is dark.

Check

• Change the input signal type setting.
• When you cannot select an input signal type, select “Color is faded

or poor” in the “Help” menu, after selecting an item other than
“sRGB” in “Picture Mode”, and then select an input signal type.

• Image adjustments are incorrectly set.

• When temperature inside the projector increases, the cooling fan

runs faster.

• The lamp indicator is illuminating in red.

Replace the lamp.

• Cables incorrectly connected to the projector or the connected

equipment works improperly.

• Select “Vertical stripes or flickering image appear” in the “Help”

menu and make the necessary adjustments.

• If this happens frequently, replace the lamp.

• The lamp will eventually need to be changed.

While the remaining lamp life draws to a close, replace the lamp.

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42, 51

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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.

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