Christie DHD675-E, Service Manual

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4-2 E Series 675/775 Service Manual
020-000546-04 Rev. 1 (04-2017)
Section 4: Troubleshooting
4.2 Low Light Output
If the projector light output is low, follow the steps below to maximize brightness.
1. Make sure the lens is in the center position and the shutter is open correctly. Check that the lamp power
settings are in the Full Mode in the OSD.
• Navigate to: Main menu > Lamp > Lamp power settings
(It should be 330W for DHD675-E/DWU675-E and 350W for DHD775-E/DWU775-E)
2. Check the status of the lamps in OSD.
• Navigate to: Main menu > Lamp > Current Lamp
(It should be set to both )
3. Enter Factory Mode
(A
UTO
, L
EFT
, L
EFT
, L
EFT
) and select Factory Reset .
NOTE:
After doing Factory
Reset, all the items will go back to default value.
a. After Factory Reset , measure the brightness in the bright mode .
b. Navigate to: Main menu > Image Settings > Picture Settings > Bright and set to bright mode.
4. Enter Factory Mode and set Prism Calibration .
a. Select Prism Calibration in Factory Mode .
b. Press the
H
ELP
key to begin prism calibration. It will take 1-2 minutes.
5. Enter Factory Mode to check the value of DA home .
a. Put the Chroma Meter in the center of the image.
b. Then press <--or--> to find the brightest value. It should be 10 ±3.
c. Measure the brightness of the unit.
Projector is in flash update state Flashing Green/
Yellow
Fan failure Red (short blink)
Over-temperature Red (solid)
Projector communications (Read/Write EEPROM) Green (very short
blink)
All other states Green (solid)
Table 4.4 Shutter LED
PROJECTOR STATUS LED STATUS
Shutter is Open Green (solid)
Shutter is Closed Yellow (solid)
Table 4.3 Status LED
PROJECTOR STATUS LED STATUS