Please the problem I'm having is the projector when pressing the power sony ex 221,the standby light turns green then red lights flashing 11 times you can help me is what on the mainboard faulty?

SOURCE: Power Indicator Flashed Red

bulb power supply

SOURCE: Sony KV34XBR800 Red Flashing Standby Light No Power

The red light should be blinking a code. For example it will blink 4 times pause then 4 times pause or 5times pause 5 times pause, whatever the error might be. Let me know what it is and then we can help more.

Tim
[email protected]

SOURCE: standby light flashes 3 times

A 3 flash pattern indicates that either the lamp is not seated correctly or that the lamp door is not latched properly. It can also be a fault with the switches that sense whether the lamp is seated or the door is latched. Try reseating the lamp and relatching the lamp door

SOURCE: red standby light light blinking

there is in-line fuse that blowes,caused by the fan vents being restricted (smoking can be a big facter) the vents should vacumed a couple times a month. you will need to have it seviced (parts and labor cost me 270$

SOURCE: SONY GRAND WEGA KF-50WE610 can't turn on TV screen.

Ths 5 blinks usually indicate an AKB problem. There is a break in the video path. I'll look up your specific model and post the results here. Please update this if you wish to attempt the repair yourself.

Thanks,
Dan