Professional advice to guide to find out the main fault projector – projectors, home theater, home projectors – home appliance industry is touched
opportunities to do things that are most afraid of, that for the maintenance industry is more important and real, such a machine is broken but finding out the reason for which is what a depressing thing ……
<BR>
<BR> Projector
As a precision optical instrument, ordinary people generally are not familiar with, and general maintenance staff, there will not know where. The following are professionals for a variety of common failures may occur, from the ideas put forward solutions, we can refer to!
<BR> <BR> Temperature
Alarm
System failure
<BR> <BR> 1, fan failure and fan failure caused by power supply circuit
<BR> 2, a variety of thermal
Resistance
Failure caused by failure of the projector
<BR> 3,
Motherboard
Temperature control system failure
<BR> 4,
Bulb
After aging, the resulting
Infrared
Line and the high amount of UV Fault
<BR> 5, light bulbs for
Electrical
The cause of the malfunction
<BR> <BR> Bulb failure warning system
<BR> <BR> 1, lamp failure due to the reasons for their
<BR> 2, light bulb power supply failure due to reasons
<BR> 3, issued by the lighting board and fault signals
<BR> 4, lamp power supply
High pressure
Line of the causes of leakage
<BR> <BR> Show lack of color fault
<BR> <BR> 1, the data line fault lines caused by reasons
<BR> 2, interface circuit fault caused by the reasons (AD9883, AD9884, AD9888, SAA7118, PW1231 replacement method)
<BR> 3, drive circuit failure caused by reasons
<BR> 4, image processing circuit into the causes of (PW164, PW166, PW168, PW364, PW365, etc.)
<BR> 5, EEPROM cause of failure diagnosis method and maintenance skills (software re-flashing)
<BR> 6, LCD screen or color wheel failure caused the failure
<BR> 7, polarizers burn
<BR> 1, the projector power supply part of the fault
<BR> <BR> No display
<BR> <BR> 1, projector motherboard failure caused by failure
<BR> 2,
Light
System due to reasons
<BR> 3, display driver part of the reason for the failure cause
<BR> 4, LCD screen, or D
MD
Chip Fault
<BR> 5,
Notebook
To the projector display mode does not correct
<BR> <BR> Image distortion
<BR> <BR> 1, restore the factory pre-mode
<BR> 2, the projector of the causes of the board
<BR> 3, panels due to the reasons for the failure
<BR> <BR> Fuzzy image
<BR> <BR> 1,
Shot
Adjustment position does not adjust to the optimum position.
<BR> 2, together with light and incorrect positioning of optical components, optical components are dust, all convex damage.
<BR> 3, lamp aging
No images are raster <BR> <BR>
<BR> <BR> 1, drive circuit fault caused the failure.
<BR> 2, motherboard failure, there are motherboards
CPU
Circuit is working properly.
<BR> <BR> Low brightness
<BR> <BR> 1, optical path itself Fault
<BR> 2, lamp aging cause of the malfunction
<BR> 3, lighting board failures, causing the light bulb with low power supply voltage and current changes. Er Shi lamp brightness changes with low
<BR> <BR> Uniform grating
<BR> <BR> 1, polarizer, integral mirror, absorbed light, light bulb aging, and so should take the fault
<BR> <BR>
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