Official Samsung PNxxF8500 Series Discussion Thread [No Street Price Talk] - Page 427 - AVS Forum
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post #12781 of 12803 Old 11-24-2014, 05:29 AM
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The Oled does look better, but not without it's own issues.
Screen uniformity, some image retention and motion issues, is curved, and is 55".
The 65" is $9,000.

Also, it's o it's own loop. Ask them to put something other than that loop on when you look at it.

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Displays are like 100% cotton t-shirts. Always buy a size larger than you think you'll need, as they tend to shrink over time.
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post #12782 of 12803 Old 11-24-2014, 06:34 AM
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Personally I couldn't justify a OLED right now due to what dsskid points out. The F8500 is a great set until OLED matures a bit.
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post #12783 of 12803 Old 11-24-2014, 09:48 AM
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@Halimali From your picture and posted information, your 64" TV is in a cabinet that does not provide Samsung's minimum ventilation requirements.

The most common cause of capacitor failure is environmental heat. The plague of bad capacitors have not be used in electronics for several years before your set was built. The components in electronic equipment need a flow of cool air while operating. In your TV, air enters the vents along the bottom of the back of the set, the air picks up heat from the electronics, then exits the vents at the back top. If there is not adequate air flow in and out of the cabinet then the temperature of the air entering the set will increase to above the maximum recommended operation temperature of 104 degrees F.

I can not advise you what must be done to bring the cabinet's ventilation up to the minimum ventilation level. There are ways that air flow can be increased in a cabinet such as:

o adding fans to push cool air in and other fans to blow hot air out (providing flow both in and out is important), and/or
o cutting vent holes in the sides and/or shelves above and/or below the set, while maintaining structural integrity.

Others on this forum are invited post their views to help Halimali.
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post #12784 of 12803 Old 11-24-2014, 04:48 PM
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After several attempts to get good 4K tv i just gave up on it and decided to wait for technology to correct LED / Edge lid problems.
Any of you can tell me on black levels and picture quality differences between Samsung PN60F8500 and Samsung PN60F5300 B version panel.
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post #12785 of 12803 Old 11-24-2014, 10:22 PM
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Quote:
Originally Posted by Salacak View Post
Any of you can tell me on black levels and picture quality differences between Samsung PN60F8500 and Samsung PN60F5300 B version panel.
Black levels are pretty much the same in a dark room. F5300 may measure a little lower if you have a newer F8500 with updated firmware.
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post #12786 of 12803 Old 11-24-2014, 10:35 PM
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Can anyone tell me where the Eco Sensor is on the 60" F8500? I don't want to block it inadvertently. I like having it on (you can set the minimum cell light that it will go to), so you can have one setting that works for day and night.
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post #12787 of 12803 Old 11-25-2014, 05:48 AM
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The sensor is in the same small area where the IR receiver and LED on/off light is in the lower left.
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post #12788 of 12803 Old 11-25-2014, 11:49 AM
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Quote:
Originally Posted by JRWalker View Post
@Halimali From your picture and posted information, your 64" TV is in a cabinet that does not provide Samsung's minimum ventilation requirements.

The most common cause of capacitor failure is environmental heat. The plague of bad capacitors have not be used in electronics for several years before your set was built. The components in electronic equipment need a flow of cool air while operating. In your TV, air enters the vents along the bottom of the back of the set, the air picks up heat from the electronics, then exits the vents at the back top. If there is not adequate air flow in and out of the cabinet then the temperature of the air entering the set will increase to above the maximum recommended operation temperature of 104 degrees F.

I can not advise you what must be done to bring the cabinet's ventilation up to the minimum ventilation level. There are ways that air flow can be increased in a cabinet such as:

o adding fans to push cool air in and other fans to blow hot air out (providing flow both in and out is important), and/or
o cutting vent holes in the sides and/or shelves above and/or below the set, while maintaining structural integrity.

Others on this forum are invited post their views to help Halimali.
Today I got the TV back after the repair.

I want to thank you for your input and advise.
I'm going to do what you advised me.

I'm ditching the whole cabinet and will replace it with a TV stand so that the whole TV will be exposed to air from all the sides.

I would also be interested to know how to add fans to the set. Would really appreciate your help in guiding me how that can be done.

I love this TV and don't want it to fail on me again.

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post #12789 of 12803 Old 11-25-2014, 01:10 PM
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Quote:
Originally Posted by Halimali View Post
Today I got the TV back after the repair.

I want to thank you for your input and advise.
I'm going to do what you advised me.

I'm ditching the whole cabinet and will replace it with a TV stand so that the whole TV will be exposed to air from all the sides.

I would also be interested to know how to add fans to the set. Would really appreciate your help in guiding me how that can be done.

I love this TV and don't want it to fail on me again.
Model Mobile Fan 12 (P/N: AF0007) - plug into lowest USB Port and adjust to about 50% speed. Will lower the temp about 10 or more degrees.
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post #12790 of 12803 Old Yesterday, 04:17 AM
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Originally Posted by p5browne View Post
Model Mobile Fan 12 (P/N: AF0007) - plug into lowest USB Port and adjust to about 50% speed. Will lower the temp about 10 or more degrees.
Thank you very much.
Would one fan be enough? I see from the picture that you have placed it in the middle. How about fixing it on the left spot where the TV gets hotter?

Does the fan make any noise?

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post #12791 of 12803 Old Yesterday, 08:18 AM
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Quote:
Originally Posted by Halimali View Post
Thank you very much.
Would one fan be enough? I see from the picture that you have placed it in the middle. How about fixing it on the left spot where the TV gets hotter?

Does the fan make any noise?

The fan is actually on the back left, over the hot spot. Found fan at 50% more than adequate, and can't be heard. At 100%, fan can be heard, but whether from your seating position I don't know. I adjust right at the fan by turning up to I just hear it. Being plugged into the lowest USB Port, it turns On and Off with the set.
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post #12792 of 12803 Old Yesterday, 10:57 AM
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Quote:
Originally Posted by Halimali View Post
Thank you very much.
Would one fan be enough? I see from the picture that you have placed it in the middle. How about fixing it on the left spot where the TV gets hotter?

Does the fan make any noise?
Halimali here are some more pics to give u some ideas for mounting the fan(s).

I used small tiewraps to mount thru the existing vent holes, the tiewraps fit just through the holes.
As u see in my pics I used 4 fans 2 x 120mm and 2 x 80mm the small ones are mounted in the middle and the bigger ones on the outside as seen from the back, the way my pics were taken.
As far as noise is concerned all 3 fans not above the hotspot are turned all the way down (slowest fan speed) only the one above the main board with all the hdmi and USB plugs is set to medium speed, you will hear some fan noise when the sound of the TV is muted but when you are watching a program or video with sound there is no additional noise detectable in my case.
Anyway these fans both the big ones and the smaller ones are avavailable from amazon and are very inexpensive for the money thy save u in repairs.
Hope this info helps you a bit.

Rob
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post #12793 of 12803 Old Yesterday, 12:07 PM
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Anyway these fans both the big ones and the smaller ones are avavailable from amazon and are very inexpensive for the money thy save u in repairs.
Hope this info helps you a bit.
Repairs? Was it confirmed by Samsung or any trained professional that the F8500's overheat to a point of defect and recommending people to install fans? The F8500 should be able to dissipate heat on it's own quite well. It's only fault from what I've seen is heating up the room, but I know nothing of fans needing to be installed to protect it from becoming defective from overheating. Please clarify this.
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post #12794 of 12803 Old Yesterday, 01:13 PM
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Repairs? Was it confirmed by Samsung or any trained professional that the F8500's overheat to a point of defect and recommending people to install fans? The F8500 should be able to dissipate heat on it's own quite well. It's only fault from what I've seen is heating up the room, but I know nothing of fans needing to be installed to protect it from becoming defective from overheating. Please clarify this.
Are you at sea level, or up in the Mountains? The higher, the harder on Plasmas. The ventilation does make a difference - just make sure the fan is blowing out, not in.
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post #12795 of 12803 Old Yesterday, 01:18 PM
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Are you at sea level, or up in the Mountains? The higher, the harder on Plasmas. The ventilation does make a difference - just make sure the fan is blowing out, not in.
I'm at sea level. I wasn't aware it would get that much hotter in the mountains. I do know Samsung said that's why the buzz gets louder, due to the elevation levels.
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post #12796 of 12803 Old Yesterday, 02:50 PM
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I'm at sea level. I wasn't aware it would get that much hotter in the mountains. I do know Samsung said that's why the buzz gets louder, due to the elevation levels.
I'm going to assume that the atmospheric pressure somehow affects the plasma cell walls?
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post #12797 of 12803 Old Yesterday, 02:56 PM
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Are you at sea level, or up in the Mountains? The higher, the harder on Plasmas. The ventilation does make a difference - just make sure the fan is blowing out, not in.
P5browne, i think what you mean(just to clarify for the other readers) that the fan should be sucking the air out, NOT blowing into the tv.
The reason for it having to suck the air through is so that it pulls cold air from the bottom part of the TV.
Then its doing the same as the convection cooling as designed by Samsung, only then moves more air and therefore is more efficient at cooling.

Rob
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post #12798 of 12803 Old Yesterday, 03:08 PM
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I'm going to assume that the atmospheric pressure somehow affects the plasma cell walls?
I'm going to say I agree? Because it sounds good enough.
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post #12799 of 12803 Old Today, 09:13 AM
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The fan is actually on the back left, over the hot spot. Found fan at 50% more than adequate, and can't be heard. At 100%, fan can be heard, but whether from your seating position I don't know. I adjust right at the fan by turning up to I just hear it. Being plugged into the lowest USB Port, it turns On and Off with the set.
I apprecitae your help. Thank you

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post #12800 of 12803 Old Today, 09:17 AM
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Originally Posted by cooknl View Post
Halimali here are some more pics to give u some ideas for mounting the fan(s).

I used small tiewraps to mount thru the existing vent holes, the tiewraps fit just through the holes.
As u see in my pics I used 4 fans 2 x 120mm and 2 x 80mm the small ones are mounted in the middle and the bigger ones on the outside as seen from the back, the way my pics were taken.
As far as noise is concerned all 3 fans not above the hotspot are turned all the way down (slowest fan speed) only the one above the main board with all the hdmi and USB plugs is set to medium speed, you will hear some fan noise when the sound of the TV is muted but when you are watching a program or video with sound there is no additional noise detectable in my case.
Anyway these fans both the big ones and the smaller ones are avavailable from amazon and are very inexpensive for the money thy save u in repairs.
Hope this info helps you a bit.

Rob
Hey Rob
Thanks a lot for sharing the pics and info.
Are you using a USB Hub? How do you power it up? Using the TV or a separate power supply?
I know I can power two fans using the TV's two USBs. How can I add more?
Another question: Do all the fans need to blow air out of the set?

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post #12801 of 12803 Old Today, 10:16 AM
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Originally Posted by Halimali View Post
Are you using a USB Hub? How do you power it up? Using the TV or a separate power supply?
I know I can power two fans using the TV's two USBs. How can I add more?
Hali,

You need just one fan because you've moved the set to a stand from the cabinet.

Use p5browne's setup.

I'm the guy with 8 fans (see my signature) and I can definitely tell you that one is enough!
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Another question: Do all the fans need to blow air out of the set?
Yes, all out. Look at the intakes at the bottom under the main board to see why one fan in the hot spot is critical for restrited airflow environments.
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post #12802 of 12803 Old Today, 10:47 AM
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Originally Posted by Halimali View Post
Hey Rob
Thanks a lot for sharing the pics and info.
Are you using a USB Hub? How do you power it up? Using the TV or a separate power supply?
I know I can power two fans using the TV's two USBs. How can I add more?
Another question: Do all the fans need to blow air out of the set?
Hi Halimali, yep sorry I forgot to mention it but YES i am using a 4 plug USB hub. the USB plug from the hub goes to the bottom USB port on the TV the one that states 1 amp (HDD 1.0A). And all 4 of these fans are plugged in to the HUB.
An IMO by using 4 fans you ave aprox. the similar temparature across the width of the panel less hot spot and I think that is better for the overall performance of the circuit boards involved.
Also I read somewhere once (dont remmember where, was in the beginning of this thread i believe) that statistcs show that dropping electronics circuits temperature by 10degree C will double the life of the afected components.

Anyway hope this helps .

Rob

EDIT: I forgot to mention that ALL fans should SUCK air OUT OF THE SET through the top air vents, as pictured in my previous post.

Last edited by cooknl; Today at 10:57 AM. Reason: added info.
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post #12803 of 12803 Old Today, 01:14 PM
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My 51F8500 is up and running for a couple of days now and I still haven't fully explored all it's options. Right now I'm mostly concerned with basic viewing of Satellite and Blu-Ray material so here's my question. Do I need to run a firmware update? And have any of the updates affected PQ in a positive of negative way? Obviously it would always seem to be a good idea to go with the newest firmware but I just want to be sure. My current version is 1202.
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