Question about Televison & Video
Seems dead took apart cleaned vacuumed still no power to start have power going into PS board at 120v Checking from Gnd across fuse only shows 60v? Normal? or does it sound like something is open in power supply? I like this tv and enjoy the challenge to repair it I can replace power supply pretty cheap if needed or can replace caps or burnt parts if i find any but would sure like professional input as i am not a tech Planning on pulling PS soon not sure if its marked with voltages on board to check? I believe i should be getting at least a standby light but chassis seems dead Thanks for any tips,help or input Dan
Definitely a PS issue. Checkout the diodes and caps there.
Posted on Dec 23, 2016
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Posted on Jan 02, 2017
Tips for a great answer:
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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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