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Brings together some questions about the failure of the Swiss Vision T18 Smart Projection and self-repair methods
The projector has now become one of the essential household appliances in our lives. There are more and more people who use it, so of course it is inevitable that the projector will fail. In many cases, failures can be solved by themselves. This also saves a small amount of money for themselves.
1. The reason why the projector is not powered on: The main power or the motherboard is bad, or the power cable is bad, the panel indicator is broken (this fault is rare, and does not affect the use)
Solution: Repair and replace the main power, repair the motherboard, replace the power cord
2. What is the reason why the projector is not turned on? The light bulb is broken, resulting in no light; the power of the light is broken, or it may not be lighted; a bad motherboard may cause it to fail.
Solution: First, replace the lamp. 2. Replace the lamp power supply or repair.
3. What is the reason for no signal output when the projector is used: The external parts are damaged, and the main board or the signal interface board is faulty
Solution: a change in the signal line or view the computer's resolution is too high, the second to see whether the projector signal switch, three main board failure
4. What are the reasons for the vertical bars on the screen? If the LCD has a vertical bar, the LCD board accounted for 80% of the damage, the driver board damage accounted for 20%; if it is a three-color vertical bar is generally the motherboard causes 70%, followed by the LCD panel and driver board.
Solution: Replace the LCD board or repair the motherboard
5. What is the reason why the projector is equipped with a lamp with insufficient brightness? One is the aging of the light bulb, and the other is because the optical system has fumes and dust that reduce its light transmittance, or the light path, reflectors, and lenses are aging. The light cannot penetrate the light; problems with the power supply of the motherboard light also affect its brightness.
Solution: If you change the bulb to see if the brightness is improved, if not, most of the LCDs are burned by the PBS board, most of the DLPs are aging of the light and reflectors, and the third is whether the machine is dirty.
6. DLP projector boot screen half brighter and the other half darker what is the reason? Optical path aging or optical fault
Solution: replace the light path projector power, press the boot, you can start, but the light bulb does not light, it can be a damaged bulb, the lamp power supply is damaged, the motherboard is damaged, the fan is damaged
Solution: First determine if the lamp is good and then check the lamp power supply or motherboard.
7. After power on, does the projector have no power indication?
Solution: First look at the power switch is not marked (many switches in the light bulb cover there) if they are all checked and then check the main power supply or motherboard.
8. Projection image ghosting, LCD is mostly bad LCD panel, or LCD drive is bad, DLP most of the cases due to poor performance of the connection cable, transmission distance is too long, replace the signal line, pay attention to the device interface with the match Problem; signal interface circuit failure
Solution: Replace the LCD panel or signal cable
9. The lights will automatically turn off during the process, but the lights can be turned on again after a while. First, overheating is caused by poor heat dissipation during the use of the machine, and thermal protection circuits are automatically activated to cause power failure. The second is a serious lamp aging or lamp power overheating protection.
Solution: First, replace the bulb or look at those vents are not blocked, the second maintenance board.
10. After the boot, there is light, but only white light, no picture, there may be damage to the motherboard
11. Picture color cast: If there is red, green and blue lens is estimated to be bad, if it is lack of one or more colors, may be bad LCD, LCD driver bad, bad signal, bad color wheel, abnormal sound or lens All without the screen is white)