Hitachi Cp-X3020 Projector Users Manual

62
Troubleshooting
Regarding the indicator lamps
When operation of the LAMP, TEMP and POWER indicators differs from usual, 
check and cope with it according to the following table.
POWER
indicatorLAMP 
indicatorTEMP 
indicatorDescription
Lighting
In 
Orange
Turned
offTurned
offThe projector is in a standby state.Please refer to the section “Power on/off”.
Blinking
In
Green
Turned
offTurned
offThe projector is warming up.Please wait.
Lighting
In 
Green
Turned
offTurned
offThe projector is in an on...

63
Troubleshooting
Regarding the indicator lamps (continued)
• When the interior portion has become overheated, for safety 
purposes, the projector is automatically shut down, and the indicator lamps 
may also be turned off. In such a case, disconnect the power cord, and wait at 
least 45 minutes. After the projector has sufciently cooled down, please make 
conrmation of the attachment state of the lamp and lamp cover, and then turn 
the power on again. NOTE
POWER
indicatorLAMP 
indicatorTEMP...

64
Troubleshooting
Phenomena that may be easy to be mistaken for machine defects
About the phenomenon confused with a machine defect, check and cope with it 
according to the following table.
Phenomenon Cases not involving a machine defectReference
page
Power does not 
come on.
The electrical power cord is not plugged in.
Correctly connect the power cord.11
The main power source has been interrupted during 
operation such as by a power outage (blackout), etc.
Please disconnect the power plug from the...

65
Troubleshooting
Phenomena that may be easy to be mistaken for machine defects (continued)
Phenomenon Cases not involving a machine defectReference
page
Sound does not 
come out.
The signal cables are not correctly connected.
Correctly connect the audio cables.9
The MUTE function is working.
Restore the sound pressing the MUTE or VOLUME +/- 
button on the remote control.16
The volume is adjusted to an extremely low level.
Adjust the volume to a higher level using the menu function 
or the remote...

66
Phenomenon Cases not involving a machine defectReference
page
Pictures appear 
dark.
The brightness and/or contrast are adjusted to an 
extremely low level.
Adjust the BRIGHTNESS and/or CONTRAST settings to a 
higher level using the menu function.28
The ECO MODE function is working.
Select the NORMAL for the ECO MODE item in the SETUP 
menu.37
The lamp is approaching the end of its product 
lifetime.
Replace the lamp.56, 57
Pictures appear
blurry.
Either the focus and/or horizontal phase settings are...

67
6SHFL

68
306
221
7783
Specifications
Specications (continued)
[unit: mm] 

1
Projector
CP-X2520/CP-X3020
User's Manual (detailed)
Operating Guide – Technical
Resolution (H x V) H. frequency (kHz) V. frequency (Hz) Rating Signal mode
720 x 40037.9 85.0 VESA TEXT
640 x 480 31.5 59.9 VESA VGA (60Hz)
640 x 480 37.9 72.8 VESA VGA (72Hz)
640 x 480 37.5 75.0 VESA VGA (75Hz)
640 x 480 43.3 85.0 VESA VGA (85Hz)
800 x 600 35.2 56.3 VESA SVGA (56Hz)
800 x 600 37.9 60.3 VESA SVGA (60Hz)
800 x 600 48.1 72.2 VESA SVGA (72Hz)
800 x 600 46.9 75.0 VESA SVGA (75Hz)
800 x 600 53.7 85.1 VESA...

2
Initial set signals
Initial set signals
The following signals are used for the initial settings. The signal timing of some 
PC models may be different. In such case, adjust the items V POSITION and H 
POSITION in the IMAGE menu. 
Resolution
(H x V)Horizontal signal timing (μs)Vertical signal timing (lines)
Signal mode
(A)(B) (C) (D)(a) (b) (c) (d)
720 x 4002.0 3.0 20.3 1.0 3 42 400 1 TEXT
640 x 480 3.8 1.9 25.4 0.6 2 33 480 10 VGA (60Hz)
640 x 480 1.3 4.1 20.3 0.8 3 28 480 9 VGA (72Hz)
640 x 480 2.0...

3
ACOMPUTER IN1, BCOMPUTER IN2, CMONITOR OUT
D-sub 15pin mini shrink jack

•  Video signal: RGB separate, Analog, 0.7Vp-p, 75Ω terminated (positive)
• H/V. sync. signal: TTL level (positive/negative)
• Composite sync. signal: TTL level

•  Video signal: 
-Y, Analog, 1.0±0.1Vp-p with composite sync, 75Ω terminated
-Cb/Pb, Analog, 0.7±0.1Vp-p, 75Ω terminated
-C
r/Pr, Analog, 0.7±0.1Vp-p 75Ω terminated
System: 480i@60, 480p@60, 576i@50, 576p@50, 720p@50/60, 1080i@50/60, 1080p@50/60 
PinSignalPinSignal
1...