I raised the question of whether PWM on the power board "dim" pin would be a reasonable assumption for controlling the backlight of a Philips TV (55put6101/12): https://www.badcaps.net/forum/troubl...d-tv-backlight. I didn't receive any insights there so I went ahead and tried it.
The setup is basically:
Rpi3 hardware PWM → 220 Ohm → NPN transistor → dim pin
Transistor is switching the 3.5 V supply on the power board....
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Hello, after a storm i notice tv is not working. Only backlight when i turn it on. If i press button on the back fot menu, backlight change. So tv menu and fuctionality is working i guess.
what to check?... -
So i'm trying to replace the LED's in a Philips TV. It's 42" with a 715g7262-p01-000-0010 backlight driver board based around an O2 Micro OZ9902CGN.
My issue is when I replace all the LED's on one board with the new 3V 300ma ones they immediately burn out when the set is powered again. I previously tried the same thing with 6V LED's and the backlight flickered for a bit but wouldn't start.
The original LED's which I removed which are still working start to melt and burn when given more than 3V on DCPS so I know they shouldn't be higher voltage ones.
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Hello,
I'd like to repair a Philips 55PUS6704.
It turns on and you can see the backlight, hear the sound but no picture.
When I disconnect one of the T-con cables, half of the screen turns white.
right cable disconnected= right side white
left cable disconnected= left side white
When I tape like 6 or 7 pins of one cable it looks like the picture attached. I already tried another T-con board without success.
There are no shorts on the the mainbaord and the two lcd panel boards...at leat I couldn't find any.
Also you can notice one single... -
Hello everyone,
First of all, please excuse me as I'm quite new to this field.
I have a Philips 55PUS6804/12 TV. It turns on and off instantly (backlight flash). I personally think it's a backlight issue (faulty LEDs). Could you help me confirm my diagnosis?
I've checked and the T-CON seems to be fine. I disconnected one ribbon cable at a time at the bottom, but the problem persists.
The Ambilight works perfectly and stays on.
No sounds.
Thanks in advance.