Hello!
Here is a manual to a similar SONY Wega Projection TV.
Please check the "Troubleshooting" part, hope it will help!
https://manualsbrain.com/en/manuals/1802139/?page=34
SOURCE: 50"sony wega
Dont plug it on your tv the FLYBACK of your tv was defective. Need to replace your flyback or else more parts inside was damage. Bring your tv to a Electronic tech.
SOURCE: Toshiba 44NHM84 has no picture just red flashing standby light
during transportation your TV was suddenly shock. then causes your TV lose connection on main circuit board. trust me!
SOURCE: I own a Samsung HL-R5067W 50
Check your color wheel. There is a DIY guide for replacing the color wheel. Mine did the same thing yours is and my color wheel was all busted up. Unfortunately after replacing the color wheel my set continues to do the same thing, but this could mean I need to replace the ballast as well.
If your Sony Wega will not turn on, the front green light blinks, you hear a faint whirring sound and the green light turns red and flashes, it probably means the lamp inside the set is no longer working. If you noticed the screen beginning to dim in the preceding days or weeks, this most likely is the cause.
If the green light flashes and the picture comes on momentarily but then goes off, and the green button flashes until the set restarts, then the seal around the lamp mount is loose and needs to be refitted.
If the picture on your Grand Wega cuts in and out and the green standby light flashes, both of the set's STKs need to be replaced. STKs are small chips on your television's circuit boards and are identifiable by their labels. The specific STKs used in your Grand Wega TV will be identifiable by the numbered labels on top of the STKs.
When you plug in your Sony Wega and hear a loud popping sound, it's probably caused by a defect in the high-voltage circuit. Let the professionals take care of this one.
If, after turning on your Sony Wega, you can hear your set but the screen is black, you most likely need to replace your projection lamp.
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