Xiamen BenQ projector maintenance services

Xiamen BenQ projector maintenance services. Projector various fault temperature alarm system failure 1, fan failure and fan failure caused by power supply circuit 2, caused by a variety of thermistor malfunction of the projector failure 3, 4 motherboard temperature control system failure, the lamp aging, resulting the amount of infrared and ultraviolet high failure 5, CAUSE fault lamp bulb fault alarm system power supply 1, the reasons for failures caused by the lamp itself, 2, bulb power supply failure caused 3 cause of the malfunction signal lighting board issued 4, the reasons for the leakage of high-voltage power failure bulb failure a lack of color display, the reason (AD9883, AD9884, AD9888, SAA7118, PW1231 replacement method) Failure caused by data line line 2, the interface circuit failure caused by 3, the drive circuit The cause of the malfunction caused 4, the cause of the image processing circuit (PW164, PW166, PW168, PW364, PW365, etc.) 5, EEPROM method for determining the cause of failure and repair techniques (software reflashing) 6, the LCD screen or color Cause wheel failure caused by failure 7, polarizers burns