The sharing of an original 46e65sg has no case of image and voice failure maintenance, and the absence of an image should be a high-sounding problem. How can we repair such failure? Reference may be made to this case。
Switching to 46e65sg lyd tv failed to turn on the panel green light. Stand by for 5v. Main voltage 24v 12v and led power panel 24v are sent out. At least indicate working state. Back light is not bright. No sound.
Asking customers, "sometimes it's possible to start. We can see weilogo. But i'm black-screening it. But i've opened it many times at the customer's house. I can't turn it off.
The board, given the inconvenientness of home maintenance, the power panel, the main panel and the keyboard, the remote control, the back panel went home. Led's backboard was not taken because there was nothing at home to try. Given that there was no room for screen maintenance, remember, it was like there was room for every normal start, and there was a piece of music. Blind voices? Let's assume that the customers don't remember or say anything. It's possible that some brands show only logo or that there's no logo. How do we judge? If you can shut down the remote, you can fix it
If the power panel is broken, it's easy to check the 5v stand-by short-link line to measure 24v12v to determine the power. The abnormal access panel goes home and fixes it without the screen and the main panel. New issues in the new form. This is a problem that bothers me today. Thanks
Id1117 has two kinds of... 7805 similar to fixed voltage... And an external resistance to different voltages... Which is not normally visible... Can only be measured outside... First to see if the first step is to replace 1117 to see if the voltage 1. 2 is normal... If it's still 1. 1v... To cut the power lines... To see if it's normal... But break the pcb! And the heat gun took off the main chip. It's a big project. It's a big chip with more than 290 feet.
The lesson is, if you don't know if there's any dispersed heat under the chip, then there's a temperature of 390 degrees... Change the wind mouth... And the wind starts on the chip with welding oil... Blow the central part of the chip for 20 seconds, blow your feet around, move evenly, don't be sure to blow one. The whole process of welding chips is not more than seven minutes, because the chip is big enough to take a heater gun down there for a long time... It could take about two to three minutes to remove it, if it's a regular dvd chip, because it's small. It's not more than three minutes.
If the chip's 1. 2v is normal. Smugglers need 25 bucks for the chip, and change the main chip. It doesn't look like it has anything to do with software at this point in time. It's good to have a few chips on the board。
The drawings on the internet are not and are not right ... At night, they are not clear, and they are done the next day。
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Genevieve 46e65sg has no image, genevieve 46e65sg has no sound, genevieve 46e65sg maintenance
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