I've got a Philips 50PUS6162/12 UHD smart led tv and it's brightness has become very low this week. I mean I can see the menu, broadcast etc. but only in a dark room. The brightness is set to maximum in the settings and I reset it to factory settings as suggested but nothing changed. Sometimes the lower third of the screen is works fine for 1-2 minutes and than goes dark. I've measured the voltages on power board and they seems to be correct (as googled for some standard voltages). I've read that it may be T-Con that is causing the problem if led strips works, power seems right and every other thing seems good.[br]
-
The warranty has just expired so please help :)[br]
-
Thanks
=== Update (01/10/2020) ===
+
Thanks for your advices. In this case dark means I can see the picture when (at least) there is twilight in the room or I cover the screen from reflection.
[image|1985346]
It’s brighter on the picture than it really is. (My camera overcorrect brightness).I checked all the connectors, and reseated the wires. I also checked the boards for cold solder soints, bloated capacitors etc, but everything is good. I measured the voltages on power supply and the strip voltages are 37.5-38 V on every pin. The other connector (the upper) voltages must be 12 V and 3.5 V according to the inscription but there is nothing on 3.5 V pin. That is the only fault.
[image|1985354]
So I still don’t really know what’s wrong with it.[br]
+
=== Update (03/01/2020) ===
-
=== Update (03/01/2020) ===
Thank you @oldturkey03 [br]
-
I took some pictures as you requested. [br]
-
I took two pictures of the display, one at daylight and the other in a darkened room, to see the difference.[br]
-
[image|2023693]
[image|2023694]
I checked the connectors and reseated all of them but nothing has changed.[br]
-
All of the LED connector voltages on the power board are 37.8 V.[br]
-
[image|2023679]
I also made some pictures of the boards:[br]
-
[image|2023682]
[image|2023680]
[image|2023681]
[image|2023686]
If the backlight is faulty, may all the LED strips go wrong at once?
[br]
+
=== Update (04/24/2020) ===
-
=== Update (04/24/2020) ===
So after T-con, I replaced the power board too, but it’s still the same. Dark... Voltages are similar to my original power board so I guess it isn’t faulty.
What’s next? Should I disassemble it completely to the led strips, and power them manually? [br]
I've got a Philips 50PUS6162/12 UHD smart led tv and it's brightness has become very low this week. I mean I can see the menu, broadcast etc. but only in a dark room. The brightness is set to maximum in the settings and I reset it to factory settings as suggested but nothing changed. Sometimes the lower third of the screen is works fine for 1-2 minutes and than goes dark. I've measured the voltages on power board and they seems to be correct (as googled for some standard voltages). I've read that it may be T-Con that is causing the problem if led strips works, power seems right and every other thing seems good.[br]
The warranty has just expired so please help :)[br]
Thanks
=== Update (01/10/2020) ===
Thanks for your advices. In this case dark means I can see the picture when (at least) there is twilight in the room or I cover the screen from reflection.
[image|1985346]
It’s brighter on the picture than it really is. (My camera overcorrect brightness).I checked all the connectors, and reseated the wires. I also checked the boards for cold solder soints, bloated capacitors etc, but everything is good. I measured the voltages on power supply and the strip voltages are 37.5-38 V on every pin. The other connector (the upper) voltages must be 12 V and 3.5 V according to the inscription but there is nothing on 3.5 V pin. That is the only fault.
[image|1985354]
So I still don’t really know what’s wrong with it.[br]
=== Update (03/01/2020) ===
Thank you @oldturkey03 [br]
I took some pictures as you requested. [br]
I took two pictures of the display, one at daylight and the other in a darkened room, to see the difference.[br]
[image|2023693]
[image|2023694]
-
-
I checked the connectors and reseated all of them but nothing has changed.[br]
All of the LED connector voltages on the power board are 37.8 V.[br]
[image|2023679]
-
-
I also made some pictures of the boards:[br]
[image|2023682]
[image|2023680]
[image|2023681]
[image|2023686]
If the backlight is faulty, may all the LED strips go wrong at once?
[br]
+
+
+
=== Update (04/24/2020) ===
+
So after T-con, I replaced the power board too, but it’s still the same. Dark... Voltages are similar to my original power board so I guess it isn’t faulty.
+
+
What’s next? Should I disassemble it completely to the led strips, and power them manually? [br]
I've got a Philips 50PUS6162/12 UHD smart led tv and it's brightness has become very low this week. I mean I can see the menu, broadcast etc. but only in a dark room. The brightness is set to maximum in the settings and I reset it to factory settings as suggested but nothing changed. Sometimes the lower third of the screen is works fine for 1-2 minutes and than goes dark. I've measured the voltages on power board and they seems to be correct (as googled for some standard voltages). I've read that it may be T-Con that is causing the problem if led strips works, power seems right and every other thing seems good.[br]
+
The warranty has just expired so please help :)[br]
+
Thanks
=== Update (01/10/2020) ===
-
Thanks for your advices. In this case dark means I can see the picture when (at least) there is twilight in the room or I cover the screen from reflection.
[image|1985346]
It’s brighter on the picture than it really is. (My camera overcorrect brightness).I checked all the connectors, and reseated the wires. I also checked the boards for cold solder soints, bloated capacitors etc, but everything is good. I measured the voltages on power supply and the strip voltages are 37.5-38 V on every pin. The other connector (the upper) voltages must be 12 V and 3.5 V according to the inscription but there is nothing on 3.5 V pin. That is the only fault.
[image|1985354]
-
So I still don’t really know what’s wrong with it.
+
So I still don’t really know what’s wrong with it.[br]
+
+
+
=== Update (03/01/2020) ===
+
Thank you @oldturkey03 [br]
+
+
+
I took some pictures as you requested. [br]
+
+
+
I took two pictures of the display, one at daylight and the other in a darkened room, to see the difference.[br]
+
+
+
[image|2023693]
+
+
[image|2023694]
+
+
+
+
I checked the connectors and reseated all of them but nothing has changed.[br]
+
+
+
All of the LED connector voltages on the power board are 37.8 V.[br]
+
+
+
[image|2023679]
+
+
+
+
I also made some pictures of the boards:[br]
+
+
+
[image|2023682]
+
+
[image|2023680]
+
+
[image|2023681]
+
+
[image|2023686]
+
+
If the backlight is faulty, may all the LED strips go wrong at once?
Hi,[br]
I've got a Philips 50PUS6162/12 UHD smart led tv and it's brightness has become very low this week. I mean I can see the menu, broadcast etc. but only in a dark room. The brightness is set to maximum in the settings and I reset it to factory settings as suggested but nothing changed. Sometimes the lower third of the screen is works fine for 1-2 minutes and than goes dark. I've measured the voltages on power board and they seems to be correct (as googled for some standard voltages). I've read that it may be T-Con that is causing the problem if led strips works, power seems right and every other thing seems good.[br]
The warranty has just expired so please help :)[br]
Thanks
=== Update (01/10/2020) ===
Thanks for your advices. In this case dark means I can see the picture when (at least) there is twilight in the room or I cover the screen from reflection.
[image|1985346]
It’s brighter on the picture than it really is. (My camera overcorrect brightness).I checked all the connectors, and reseated the wires. I also checked the boards for cold solder soints, bloated capacitors etc, but everything is good. I measured the voltages on power supply and the strip voltages are 37.5-38 V on every pin. The other connector (the upper) voltages must be 12 V and 3.5 V according to the inscription but there is nothing on 3.5 V pin. That is the only fault.
[image|1985354]
So I still don’t really know what’s wrong with it.
I've got a Philips 50PUS6162/12 UHD smart led tv and it's brightness has become very low this week. I mean I can see the menu, broadcast etc. but only in a dark room. The brightness is set to maximum in the settings and I reset it to factory settings as suggested but nothing changed. Sometimes the lower third of the screen is works fine for 1-2 minutes and than goes dark. I've measured the voltages on power board and they seems to be correct (as googled for some standard voltages). I've read that it may be T-Con that is causing the problem if led strips works, power seems right and every other thing seems good.[br]
The warranty has just expired so please help :)[br]
Thanks
=== Update (01/10/2020) ===
-
Thanks for your advices. In this case dark means I can see the picture when (at least) there is twilight in the room or I cover the screen from reflection. [image|1985346]
+
Thanks for your advices. In this case dark means I can see the picture when (at least) there is twilight in the room or I cover the screen from reflection.
-
It’s brighter on the picture than it really is. (My camera overcorrect brightness).I checked all the connectors, and reseated the wires. I also checked the boards for cold solder soints, bloated capacitors etc, but everything is good. I measured the voltages on power supply and the strip voltages are 37.5-38 V on every pin. The other connector (the upper) voltages must be 12 V and 3.5 V according to the inscription but there is nothing on 3.5 V pin. That is the only fault.[image|1985354]
+
[image|1985346]
+
+
It’s brighter on the picture than it really is. (My camera overcorrect brightness).I checked all the connectors, and reseated the wires. I also checked the boards for cold solder soints, bloated capacitors etc, but everything is good. I measured the voltages on power supply and the strip voltages are 37.5-38 V on every pin. The other connector (the upper) voltages must be 12 V and 3.5 V according to the inscription but there is nothing on 3.5 V pin. That is the only fault.
+
+
[image|1985354]
So I still don’t really know what’s wrong with it.
I've got a Philips 50PUS6162/12 UHD smart led tv and it's brightness has become very low this week. I mean I can see the menu, broadcast etc. but only in a dark room. The brightness is set to maximum in the settings and I reset it to factory settings as suggested but nothing changed. Sometimes the lower third of the screen is works fine for 1-2 minutes and than goes dark. I've measured the voltages on power board and they seems to be correct (as googled for some standard voltages). I've read that it may be T-Con that is causing the problem if led strips works, power seems right and every other thing seems good.[br]
The warranty has just expired so please help :)[br]
Thanks
+
+
=== Update (01/10/2020) ===
+
+
Thanks for your advices. In this case dark means I can see the picture when (at least) there is twilight in the room or I cover the screen from reflection. [image|1985346]
+
+
It’s brighter on the picture than it really is. (My camera overcorrect brightness).I checked all the connectors, and reseated the wires. I also checked the boards for cold solder soints, bloated capacitors etc, but everything is good. I measured the voltages on power supply and the strip voltages are 37.5-38 V on every pin. The other connector (the upper) voltages must be 12 V and 3.5 V according to the inscription but there is nothing on 3.5 V pin. That is the only fault.[image|1985354]
+
+
So I still don’t really know what’s wrong with it.
Hi,[br]
I've got a Philips 50PUS6162/12 UHD smart led tv and it's brightness has become very low this week. I mean I can see the menu, broadcast etc. but only in a dark room. The brightness is set to maximum in the settings and I reset it to factory settings as suggested but nothing changed. Sometimes the lower third of the screen is works fine for 1-2 minutes and than goes dark. I've measured the voltages on power board and they seems to be correct (as googled for some standard voltages). I've read that it may be T-Con that is causing the problem if led strips works, power seems right and every other thing seems good.[br]
The warranty has just expired so please help :)[br]
Thanks