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Version actuelle par : Patrik Bajusz ,

Titre:

Why is my Philips TV screen is so dark?

Texte:

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.[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
I checked the connectors and reseated all of them but nothing has changed.[br]


I
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]
 
 
[br]
 
 
[br]

Appareil:

Philips Television

Statut:

open

Modifié par : Patrik Bajusz ,

Titre:

Why is my Philips TV screen is so dark?

Texte:

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.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]
So I still don’t really know what’s wrong with it.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]

Appareil:

Philips Television

Statut:

open

Modifié par : Patrik Bajusz ,

Titre:

Why is my Philips TV screen is so dark?

Texte:

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.

Appareil:

Philips Television

Statut:

open

Réponse acceptée:

611140

Modifié par : mayer (détails du vote) ,

Titre:

Why is my Philips TV screen is so dark?

Texte:

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]
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[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|1985354fault.

[image|1985354
]
It’s[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|1985354fault.

[image|1985354
]
 
So I still don’t really know what’s wrong with it.

Appareil:

Philips Television

Statut:

open

Réponse acceptée:

611140

Modifié par : Patrik Bajusz ,

Titre:

Why is my Philips TV screen is so dark?

Texte:

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.

Appareil:

Philips Television

Statut:

open

Contribution d'origine par : Patrik Bajusz ,

Titre:

Why is my Philips TV screen is so dark?

Texte:

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

Appareil:

Philips Television

Statut:

open