Ques/Help Philips 32phs4012 / 12 no backlight

Droidmaster

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Oct 12, 2020
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Philips TV 32phs4012 / 12 is available. 1 year after the purchase, the screen stopped showing, as it turned out, the backlight stopped working. Dismantled, checked the LED driver, the driver with the OB3353CP number was installed there. At the output to the backlight, there were inadequate voltage values, jumped, and was replaced by a similar led driver with the OB3350CP number. But the backlight did not start, and a new one was also ordered and replaced. After replacing the led driver and backlight, there is still no light.
The new backlight has been tested with an LBP and is lit at 32v. The old backlight doesn't work at all. But on the TV, the output to the backlight when turned on gives out only 22v. The new backlight was purchased in full accordance with the original backlight model. Can someone tell me what is wrong? Where to dig?
Board model tp.ms3463s.pb755
 

GuDron

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Jan 28, 2020
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Story from the series (the miser pays twice).
And in fact
1. are the backlight strips connected with the correct polarity?
2. Is the driver itself working?
3. Does the driver enable signals to come from the lane?
4. If you put the native driver and the new trims start working?