3M Digital Projector X20 Operators Guide

							
60
Maintenance
Inside of the projector
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Caring for the lens
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Troubleshooting
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Related messages
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NO INPUT IS DETECTED
½½½There is no input signal.
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SYNC IS OUT OF RANGE
½½½
                fH ½½kHz  fV ½½HzThe horizontal or vertical frequency of the input signal 
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CHECK THE AIR FLOW
The internal temperature is rising.
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62
Troubleshooting
Regarding the indicator lamps
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POWER
indicator LAMP 
indicator TEMP 
indicator Description
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,Q
Orange
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offThe projector is in a standby state.
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Blinking
In
Green
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offThe projector is warming up.
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Green
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offThe projector is in an on state.
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Blinking
In
Orange
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offThe projector is cooling down.
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Blinking In
Red
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The projector is cooling down. A certain error 
has been detected.
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Blinking In
Red
or
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Red
7XUQHG off
The lamp does not light, and there is a possibility 
that interior portion has become heated.
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or
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7XUQHG off Blinking
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The cooling fan is not operating.
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© 3M 2006.  All Rights Reserved.  
3M™ Digital Projector X20  
						

							
63
Troubleshooting
Regarding the indicator lamps (continued)
POWER
indicator LAMP 
indicator TEMP 
indicator Description
Blinking In
Red
or
/LJKWLQJ ,Q
Red
7XUQHG off /LJKWLQJ
,Q
Red
There is a possibility that the interior portion 
has become heated.
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blinking in 
Red
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64
Troubleshooting
Phenomena that may be easy to be mistaken for machine defects
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Phenomenon Cases not involving a machine defectReference
page
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The electrical power cord is not plugged in.
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The main power source has been interrupted during 
operation such as by a power outage (blackout), etc.
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Either there is no lamp and/or lamp door, or either of 
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Phenomena that may be easy to be mistaken for machine defects (continue\
d)
Phenomenon Cases not involving a machine defectReferencepage
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The brightness is adjusted to an extremely low level.
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IXQFWLRQRUWKHUHPRWHFRQWURO 
The computer cannot detect the projector as a plug 
and play monitor.
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The BLANK screen is displayed.
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19
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GLVSOD\IUHH]HV The FREEZE function is working.
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Color settings are not correctly adjusted.
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COLOR SPACE setting is not suitable.
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The brightness and/or contrast are adjusted to an 
extremely low level.
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The WHISPER function is working.
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The lamp is approaching the end of its product 
lifetime.
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Either the focus and/or horizontal phase settings are 
not properly adjusted.
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The lens is dirty or misty.
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60
Troubleshooting
NOTE

						

							
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Ditial Projector X20
Operator's Guide   TECHNICAL
Example of computer signal
Resolution (H x V)H. frequency (kHz)V. frequency (Hz)RatingSignal mode
720 x 40037.985.0VESATEXT
640 x 4803 .559.9VESAVGA (60Hz)
640 x 48037.972.8VESAVGA (72Hz)
640 x 48037.575.0VESAVGA (75Hz)
640 x 48043.385.0VESAVGA (85Hz)
800 x 60035.256.3VESASVGA (56Hz)
800 x 60037.960.3VESASVGA (60Hz)
800 x 60048. 72.2VESASVGA (72Hz)
800 x 60046.975.0VESASVGA (75Hz)
800 x 60053.785.VESASVGA (85Hz)
832 x 62449.774.5Mac   6” mode
024 x 76848.460.0VESAXGA (60Hz)
024 x 76856.570. VESAXGA (70Hz)
024 x 76860.075.0VESAXGA (75Hz)
024 x 76868.785.0VESAXGA (85Hz)
 52 x 86467.575.0VESA52 x 864 (75Hz)
280 x 96060.060.0VESA280 x 960 (60Hz)
280 x   02464.060.0VESASXGA (60Hz)
280 x   02480.075.0VESASXGA (75Hz)
280 x   0249 . 85.0VESASXGA (85Hz)
600 x   20075.060.0VESAUXGA (60Hz)
280 x 76847.760.0VESAW-XGA (60Hz)
400 x   05065.260.0VESASXGA+ (60Hz)
NOTE      •  Be  sure  to  check  jack  type,  signal  level,  timing  and  resolution 
before connecting this projector to a computer.
•  Some  computers  may  have  multiple  display  screen  modes.  Use  of  some  of 
these modes will not be possible with this projector.
• Depending on the input signal, full-size display may not be possible in some 
cases. Refer to the number of display pixels above.
•  Although  the  projector  can  display  signals  with  resolution  up  to  UXGA 
( 600x  200),  the  signal  will  be  converted  to  the  projector’s  panel  resolution 
before  being  displayed.  The  best  display  performance  will  be  achieved  if  the 
resolutions of the input signal and projector panel are identical.
• Automatically adjustment may not function correctly with some input sign\
als.
•  The  image  may  not  be  displayed  correctly  when  the  input  sync  signal  is  a 
composite sync or a sync on G.
© 3M 2006.  All Rights Reserved.   
						

							
68
Initial set signals
Initial set signals
The  following  signals  are  used  for  the  initial  settings.  The  signal  timing  of  some 
computer  models  may  be  different.  In  such  case,  adjust  the  items  V  POSITION 
and H POSITION in the IMAGE menu. 
 
Computer/Signal
Horizontal signal timing (μs)Computer/Signal
Vertical signal timing (lines)
(A)(B)(C)(D)(a)(b)(c)(d)
TEXT2.03.020.3.0TEXT342400
VGA (60Hz)3.8.925.40.6VGA (60Hz)2334800
VGA (72Hz).34. 20.30.8VGA (72Hz)3284809
VGA (75Hz)2.03.820.30.5VGA (75Hz)36480
VGA (85Hz).62.27.8.6VGA (85Hz)325480
SVGA (56Hz)2.03.622.20.7SVGA (56Hz)222600
SVGA (60Hz)3.22.220.0.0SVGA (60Hz)423600
SVGA (72Hz)2.4.36.0. SVGA (72Hz)62360037
SVGA (75Hz).63.26.20.3SVGA (75Hz)32600
SVGA (85Hz). 2.74.20.6SVGA (85Hz)327600
Mac   6" mode. 3.94.50.6Mac   6" mode339624
XGA (60Hz)2.2.55.80.4XGA (60Hz)6297683
XGA (70Hz).8.93.70.3XGA (70Hz)6297683
XGA (75Hz).22.23.00.2XGA (75Hz)328768
XGA (85Hz).02.20.80.5XGA (85Hz)336768
 52 x 864 (75Hz).22.40.70.6 52 x 864 (75Hz)332864
280 x 960 (60Hz).02.9 .90.9280 x 960 (60Hz)336960
SXGA (60Hz).02.3 .90.4SXGA(60Hz)338024
SXGA (75Hz). .89.50. SXGA (75Hz)338024
SXGA (85Hz).0.48. 0.4SXGA (85Hz)344024
UXGA (60Hz).2.99.90.4UXGA (60Hz)346200
W-XGA (60Hz).72.56.00.8W-XGA (60Hz)323768
SXGA+ (60Hz).22.0 .40.7SXGA+ (60Hz)333050
 Back porch (B) Front porch (D) Back porch (b) Front porch (d)
 Display interval (C) 
Data Data
H. Sync. V. Sync.
Sync (A)  Sync (a)
Display interval (c) 
3M™  Digital  Projector  X 20  
© 3M 200 6.  All Rights Reserved.   
						

							
69
Connection to the ports
ACOMPUTER IN1, BCOMPUTER IN2
 D-sub  5pin mini shrink jack
(1) for Computer signal
•  Video signal: RGB separate, Analog, 0.7Vp-p, 75Ω 
terminated (positive)
• H/V. sync. Signal: TTL level (positive/negative)
• Composite sync. Signal: TTL level
PinSignalPinSignal
Video Red0Ground
2Video Green(No connection)
3Video Blue2A: SDA (DDC data)
B: (No connection)4(No connection)
5Ground3H. sync / Composite sync.
6Ground Red4V. sync.
7Ground Green5A: SCL (DDC clock)
B: (No connection)8Ground Blue
9(No connection)--
K
COMPUTER IN1COMPUTER IN2USBUSB STORAGEDC 5V 0.5AAUDIO OUT
AUDIO INS-VIDEOVIDEO
Connection to the ports
098765432
5432
AB
(2) for Component signal
•  Y : Component video Y, 1.0±0.1 Vp-p, 75 Ω terminator with composite
• CR/PR : Component video CR/PR, 0.7±0.1 Vp-p, 75 Ω terminator
• CB/PB : Component video CR/PR, 0.7±0.1 Vp-p, 75 Ω terminator
PinSignalPinSignal
CR/PR 0Ground
2Y(No connection)
3CB/PB2(No connection)
4(No connection)3(No connection)
5Ground4(No connection)
6Ground CR/PR5(No connection)
7Ground Y--
8Ground CB/PB--
9(No connection)--
3M™  Digital  Projector  X 20  
© 3M 200 6.  All Rights Reserved.