Mitsubishi Hc6800 Projector User Manual

							EN-41
No image appears on the screen. (continued)
ProblemSolution
The screen for 
entering the password 
appears. PASSWORD FUNCTION in the FEATURE menu has been set to DISPLAY INPUT to 
•	
enable the password lock.Enter the password or contact the person in charge of management of the 
 

projector. (See page 35.)
“NO SIGNAL” is 
displayed. Turn on the power of the connected device, or check whether there is something 
•	
wrong with the connected device.
Check whether the external device output signals. (Check this especially when the 
•	
external device is a notebook computer.)
Check that the cable connected to the external device isn’t defective.
•	
Check that the projector is connected to the external device using the correct 
•	
terminals.
Check that the connected device is correctly selected as the input source.
•	
When an extension cord is being used, replace it with the supplied cable and check 
•	
whether images are projected correctly. If images are projected correctly, use an RGB 
signal amplifier along with the extension cord.
Images are not displayed correctly.
Problem Solution
Projected images are 
shaking.
Projected images are 
displaced.  Check that the cable connected to the external device isn’t intermittent.
•	
Connect the cable’s plug with the external device’s connector firmly.
•	
Press the AUTO POSITION button.
•	
Some computers output out-of-spec signals on rare occasion. Adjust the SIGNAL 
•	
menu. (See page 34.)
Projected images are 
distorted. Adjust the projector and the screen so that they are perpendicular to each other. (See 
•	
page 10.)
Projected images are 
dark.  Adjust BRIGHTNESS and CONTRAST in the IMAGE menu. (See page 31.)
•	
Replace the lamp. (See page 36.)
•	
Projected images are 
blurred. Adjust the focus. (See pages 18 and 23.)
•	
Clean the lens.
•	
Press the 
•	 t or u button on the remote control to eliminate flicker.
Adjust TRACKING and FINE SYNC. in the SIGNAL menu. (See page 34.)
•	
Adjust BRIGHTNESS and CONTRAST in the IMAGE menu. (See page 31.)
•	
Adjust the projector and the screen so that they are perpendicular to each other. (See 
•	
page 10.)
Afterimages persist on 
the screen. This phenomenon is improved by keeping projecting an evenly bright image. (Such 
•	
“image burn-in” phenomenon where afterimages persist on the screen may occur if a 
stationary image is kept displayed on the screen for a long time.)
Red, blue, and 
green dots appear in 
projected images.
Black dots appear in 
projected images. This phenomenon is unique to LCD projector and isn’t a product malfunction.
•	
(A small number of pixels always stay on or off, which are not malfunctions. More than 
99.99% of the pixels are effective.)
Fine streaks are seen 
on projected images. This is due to interference with the screen surface and is not a malfunction. Replace 
•	
the screen or displace the focus a little.
Vertical or horizontal streak noise may appear on the projected image, depending on 
•	
the type of the DVD player or game console you use. In such a case, you \
can reduce 
such streak noise by enabling the LPF. (See page 29.)
Projected images 
become wavy. Connect the plugs of the cables to external devices securely.
•	
Keep the projector away from devices that emit interfering radio waves.
•	
Hue is not appropriate. Check that the cables connected to the external devices are not broken.
•	
Tint in projected 
images is incorrect. Check that COMPUTER INPUT in the SIGNAL menu is correctly set. (See page 29.)
•	
Check that the cable connected to the external device isn’t broken.
•	
Troubleshooting (continued) 
						

							EN-42
Others
ProblemSolution
The exhaust vents 
emit warm air. This air comes out after cooling the inside of the projector. You may feel hot, but this 
•	
is not a malfunction.
The menu can’t be 
used. The microcomputers inside the projector may be wrongly operating because of noise.
•	
 Turn off the main power, wait about 10 minutes, and turn on the main power again.
 

“TEMPERATURE!!” is 
displayed. This indication appears when the ambient temperature rises high. When the ambient 
•	
temperature stays high, the lamp goes out.Eliminate any causes of the rise in the ambient temperature.
 

This indication appears when the air inlet or outlet grille is blocked. \
When they are 
•	
kept blocked, the lamp goes out.Remove the objects blocking the air inlet or outlet grille. Clean the fi\
lter, if clogged.  
 

(See page 39.)
The 
 mark appears. This mark appears when ineffective operation is carried out. This isn’t a product 
•	
malfunction.
The remote control 
doesn’t function easily 
or at all. Check that the batteries are loaded in the remote control or the batteries are not 
•	
weak. (See page 6.)
Check that the remote control sensor isn’t exposed to direct sunlight or fluorescent 
•	
light. (See page 9.)
Use the remote control within its operation range. (See page 9.)
•	
Use the remote control at least 10 cm away from the projector. 
•	
The buttons on the 
control panel (except 
for the POWER 
button) don’t function. PASSWORD FUNCTION in the FEATURE menu has been set to MENU ACCESS to 
•	
enable the password lock.Cancel the password lock or contact the person in charge of management of the 
 

projector. (See page 35.)
Mechanical operating 
noise (clicking sound) 
is heard. The iris produces sound while operating. This is not a malfunction.
•	
 If the following problem occurs after the lamp is replaced, check the following first.
Problem Solution
The projector does not 
turn on. Fit the lamp cover securely. (See pages 36 and 37.)  
•	
Reset the lamp operating time. (See page 37.)
•	
The STATUS indicator 
blinks. Reset the lamp operating time. (See page 37.)
•	
Troubleshooting (continued)
Images are not displayed correctly. (continued)
Problem Solution
Different color tint. When comparing images projected by two projectors, tints in the displayed images  •	
may be different because of variation between their optical components. This is not a\
 
malfunction.
When comparing the image projected by this projector with those displayed on the 
•	
television or PC monitor, tints in the displayed images may be different because of 
difference in the range of color reproducibility. This is not a malfunction.
Only the motion areas 
in the images supplied 
from the computer 
aren’t displayed. This is caused by the computer being used. Contact the manufacturer of your 
•	
computer.
Projected images are 
obscured. Match the output resolution of your computer with the resolution of the projector. 
•	
For the method to change the output resolution of the computer, contact the 
manufacturer of your computer. (See page 45.)
Image remains 
freezing. When image from VCR is projected, it may remain freezing during speed search. This 
•	
is not a malfunction. 
Noise appears around 
the image. In some images such as DVD, noise may appear around the recorded image. In this 
•	
case, decrease the setting value of OVER SCAN of the SIGNAL menu. (See page 29.)\
 
						

							EN-43
Normal condition
POWERSTATUS CONDITIONNOTE
Steady
red
OffStand-by
BlinkinggreenLamp stand-by for power-off The power cannot be turned on by pressing 
the POWER button.
Steady
green
Blinking greenLamp stand-by for power-on The power cannot be turned off by pressing 
the POWER button.
Steady
greenThe power is on. (Normal condition)
Abnormal condition
POWERSTATUS CONDITION POSSIBLE SOLUTION
Steady 
green or
Steady  red
Blinking orange
Abnormal temperature The ventilation grilles are clogged with dust or dirt.
•	
The room temperature is high.
•	 Clean the ventilation grilles.
•	
Relocate the projector to a cooler place.
•	
Steady 
redBlinking green
The protection circuit is working or the lamp is in an 
abnormal condition. Wait until the STATUS indicator goes out, 
•	
then press the POWER button.
If the above solution is not effective, 
•	
replace the lamp.
Steady 
greenBlinking green/red
Lamp operation time warning. (Total lamp operation 
time reached 3000 hours*1 while the power was on.) Replace the lamp.
Change with a new lamp if this problem 
recurs.
Steady 
redBlinking redLamp operation time warning. (Total lamp operation 
time reached 3000 hours*1 while the power was off.)
Steady redLamp operation time warning. (Total lamp operation 
time reached 4000 hours*1*2 while the power was off.)
Blinking 
green/red
OffThe lamp cover isn’t closed. Close the cover correctly.
Steady 
or 
 
Blinking
Abnormal. Contact your dealer.
*1:  Duration when LAMP MODE of the INSTALLATION menu is set to LOW. When it is set to STANDARD, this duration will be  shorted.
*2:  When LAMP MODE is set to STANDARD, this duration will be shorted up to 2000 hours.
Indicators
POWER indicator
This projector has two indicators, each of which shows the operation condition \
of the projector.
The following offer solutions to possible problems. If these problem persist, turn the projector off and consult your 
dealer. 
STATUS indicator 
						

							EN-44
The specifications and outside appearance of the projector are subject to change without prior notice.
TypeLCD projector
Model HC6800
Display technology 0.74-inch LCD panel: 3 pieces (for R, G, B) (aspect ratio 16:9)
Pixel: 1920 x 1080 = 2073600 pixels
Total 6220800 pixels
Projection lens F 1.8 - 2.3  f= 23.5 - 37.6 mm
Light-source lamp 170 W
Image size (projection distance) 50” min. to 300” max. (projection distance 1.5 to 9.5 m (max. Zoom))
Maximum 
resolution Computer signal Maximum resolution: 1600 x 1200 dots
Panel resolution: 1920 x 1080 dots
Video signal NTSC/PAL/SECAM/4.43NTSC/PAL-M/PAL-N/PAL-60 
Component signal 480i, 480p, 576i, 576p, 720p, 1080i, 1080p Panel resolution: 1920 x 1080 dots
Computer input [Signal type] [Terminal type]  [Line]
Analog RGB  Mini D-SUB 15-pin  1
Video input [Signal type] [Terminal type]  [Line]
HDMI  HDMI  2
Video input  RCA  1
S-video input  S  1
Component video input  RCA x3 (YC
BCR/YPBPR)  1
Control terminal/
others SERIAL
RS-232C (D-SUB 9-pin)
TRIGGER DC 12 V, max. 200 mA (stereo mini jack) 
Operating temperatures +41°F (+5°C) to +95°F (+35°C)
Rated voltage AC100 - 240 V, 50/60 Hz
Power consumption 2.5 A
Dimensions 427 mm (W) x 159 mm (H) x 440 mm (D)  * Not including protrusion.
Weight 7.5 kg
Others S-video input Luminance signal: Vp-p=1.0 V 75 Ω (negative sync)
Chrominance signals: Vp-p=0.286 V 75 Ω (burst signal)
Video input Vp-p=1.0 V  75 Ω (negative sync)
Component video 
input YC
BCR: Vp-p=1.0 V 75Ω (Y) (negative sync)
Vp-p=0.7 V 75 Ω (C
B, CR)
Analog input RGB: Vp-p=0.7 V 75 Ω (negative sync) YC
BCR: Vp-p=1.0 V (Y) (negative sync)  Vp-p=0.7 V (CB, CR)
HD/CS: TTL-level (negative or positive polarity)
VD: TTL-level (negative or positive polarity)
Digital input (HDMI) HDMI interface (TMDS single link)
Specifications
427 84.5
159
1658.7
440
Dimension drawings (unit: mm) 
						

							EN-45
*1: When ASPECT in the FEATURE menu is set to AUTO.
*2: Available for the signal from the HDMI IN terminal.
Important:Some computers aren’t compatible with the projector.
•	
The projector’s maximum resolution is 1920 x 1080 
•	
pixels. It may not display images of higher resolutions 
than 1920 x 1080 correctly.
If the resolution and frequency of your computer 
•	
aren’t shown on the table, find the compatible 
resolution and frequency by changing the resolution 
of your computer.
Specifications (continued)
Specification of RGB signals in each computer mode of the projector
Signal mode Resolution
(H x V) Horizontal frequency 
(kHz) Vertical frequency 
(Hz) Normal mode
(H x V)*1
TV60, 480i (525i) –15.73 59.941920 x 1080 *2
TV50, 576i (625i) –15.63 50.001920 x 1080 *2  
1080i 60 (1125i 60) –33.75 60.001920 x 1080 *2
1080i 50 (1125i 50) –28.13 50.001920 x 1080 *2
480p (525p) –31.47 59.941920 x 1080 *2
576p (625p) –31.25 50.001920 x 1080 *2
720p 60 (750p 60) –45.00 60.001920 x 1080 *2
720p 50 (750p 50) –37.50 50.001920 x 1080 *2
1080p 60 (1125p 60) –67.50 60.001920 x 1080 *2
1080p 50 (1125p 50) –56.25 50.001920 x 1080 *2
1080p 24 (1125p 24) –27.00 24.001920 x 1080 *2
PC98 640 x 40024.8256.421728 x 1080
CGA70 640 x 40031.4770.091728 x 1080
VGA60 640 x 48031.4759.941440 x 1080 *2
VGA72 640 x 48037.8672.811440 x 1080
VGA75 640 x 48037.5075.001440 x 1080
VGA85 640 x 48043.2785.011440 x 1080
SVGA56 800 x 60035.1656.251440 x 1080
SVGA60 800 x 60037.8860.321440 x 1080 *2
SVGA72 800 x 60048.0872.191440 x 1080
SVGA75 800 x 60046.8875.001440 x 1080
SVGA85 800 x 60053.6785.061440 x 1080
XGA60 1024 x 76848.3660.001440 x 1080 *2
XGA70 1024 x 76856.4870.071440 x 1080
XGA75 1024 x 76860.0275.031440 x 1080
XGA85 1024 x 76868.6885.001440 x 1080
MAC13 640 x 48035.0066.671440 x 1080
MAC16 832 x 62449.7274.551440 x 1080
MAC19 1024 x 76860.2475.021440 x 1080
HP75 1024 x 76862.9474.921440 x 1080
SXGA60 1280 x 102463.9860.021350 x 1080 *2
UXGA60 1600 x 120075.0060.001440 x 1080 *2
•	 This	projector	 doesn’t	support	 480p	signals	 from	video	
devices having 4 lines (R, G, B, CS*) or having 5 lines (R, G, 
B, H, V). 
  * :  Composite Sync 
						

							EN-46
Specifications (continued)
Connectors
SERIAL (D-SUB 9-pin)1 5 
6 
9 
Pin No. Name
I/O
1 ––
2 TXD IN
3 RXD OUT
4 ––
5 GND –
6 ––
7 ––
8 ––
9 ––
COMPUTER IN/COMPONENT VIDEO IN
(Mini D-SUB 15-pin)
Pin No. Spec.
1 R(RED)/PR/CR2 G(GREEN)/Y
3 B(BLUE)/PB/CB4 GND
5 GND
6 GND
7 GND
8 GND
9 DDC 5V
10 GND
11 GND
12 DDC Data
13 HD/CS
14 VD
15 DDC Clock
HDMI IN
(HDMI 19-pin)191
218
PIN No. Spec. PIN No. Spec.
1 TMDS Data2+ 11 TMDS Clock Shield
2 TMDS Data2 Shield 12 TMDS Clock-
3 TMDS Data2- 13 CEC
4 TMDS Data1+ 14 –
5 TMDS Data1 Shield 15 SCL
6 TMDS Data1- 16 SDA
7 TMDS Data0+ 17 DDC Ground
8
TMDS Data0 Shield18 +5 V Power
9 TMDS Data0- 19 Hot Plug Detect
10 TMDS Clock+
Replacement part (option/not included in the box)
Spare lamp  VLT-HC6800LP
15
116
10
15 
						

							1 Zusho Baba, Nagaokakyo-City, Kyoto Japan
MITSUBISHI ELECTRIC CORPORATION
A