I understand this might be a strange issue, but after giving my new system 2 months to 'settle', I'm still hearing quite loud creaks/pops (usually) after shut-down. I'm fairly certain the cause is expansion/contraction of the TV's (JVC HD-61FN97) cabinet, but since they occur a good while after powering it off no one is nearby to accurately 'localize' the source. The one time it happened while I was watching, the sound seemed to come from the end of the set where the fan and light-engine are situated. After ruling out the (TechCraft) stand, the noise is either being caused by the TV itself, or its 'interaction' with the (wooden) surface of the stand as it cools.

Assuming JVC hasn't announced some 'known assembly-problem' explaining this, I figure a reasonable (and cheap!) solution-attempt would be to place some 'feet' at the points where the TV contacts the stand (or perhaps one large 'sheet'): any advice or recommendations as to material/thickness/size/placement?

You'll still have friction which will cause stress to build due to the differing coefficients of thermal expansion with "sticky" feet.

I'd suggest something like a thin sheet/piece of felt between the set and the stand. Will reduce friction such to a point that the TV will be free to do its thing as it gets hot... if that is indeed the problem.

You'll still have friction which will cause stress to build due to the differing coefficients of thermal expansion with "sticky" feet.

I'd suggest something like a thin sheet/piece of felt between the set and the stand. Will reduce friction such to a point that the TV will be free to do its thing as it gets hot... if that is indeed the problem.

Would billiard-table felt work? There's a large 'factory warehouse' nearby that sells pool tables and accessories, and I'd prolly be able to select from various materials/qualities.

Any materials I should avoid, for instance ones that might produce dust/lint?

Why is it a problem?

Why is it a problem?

The set is in a large, central room with a tile floor and vaulted ceiling (think 'echo') ..."quite loud" is loud enough to regularly awaken family members. From that time it occurred while I was sitting in the room, I'd say the sound was about the same as someone rapping the cabinet with their open palm. I'd also estimate that it happens about the half the time (~every other time the set is powered off).

Last week while my in-laws were visiting, I heard it about 20 minutes after the set was off and everyone went to bed, then noticed that the lights came back on. When I got there I found my father-in-law scanning the room; he looked at me and said "something fell".

HL S5687W versus HL T5687S does anyone know the difference between the S and the T series apart from the T is a newer version? I can't find anything on Samsungs site and can't work out if there is any value in paying the extra $$'s

When I got there I found my father-in-law scanning the room; he looked at me and said "something fell".Now that's a problem! :eek:

I've never imagined either expansion of contraction making that much noise.

I don't recall anyone solving the problem by separating the stand from the TV case, but it might work.

There are reports in some owner's threads that people have backed off screws in the case to allow easier expansion and contraction. You might try something like an 1/8" turn at a time. The idea is that the case was over tightened, and like an over due earth quake, it suddenly gives way instead of slowly moving to it's original shape.

Now that's a problem! :eek:

I've never imagined either expansion of contraction making that much noise.

I don't recall anyone solving the problem by separating the stand from the TV case, but it might work.

There are reports in some owner's threads that people have backed off screws in the case to allow easier expansion and contraction. You might try something like an 1/8" turn at a time. The idea is that the case was over tightened, and like an over due earth quake, it suddenly gives way instead of slowly moving to it's original shape.

Thanks; I need to do some other work behind the system, and I'll check those out while I'm back there. Like I said up front, I've never seen anything posted about this issue in the areas/forums I usually check out and understand it may be very rare, or even specific to just my set. Your earthquake/fault-line analogy is a good one, and describes how I 'picture' the problem (and also the 'fix'): help the set to gradually 'slide' vs. abruptly 'jumping'. Heck, the solution might be as simple as waxing the surface!

I did see another post that described utilizing a sheet of some material under my model set to reduce fan-noise (helped by cutting resonance and sound reflected off of stand's surface). I recall the material was found at art-supply stores, and was a little pricey.

JimNSB,

Your room seems to be full of highly reflective surfaces which must also cause you some audio problems.

HL S5687W versus HL T5687S does anyone know the difference between the S and the T series apart from the T is a newer version? I can't find anything on Samsungs site and can't work out if there is any value in paying the extra $$'s

The HLT is LED. Worh it to me. So much so that I'm selling my HLS.

JimNSB,

Your room seems to be full of highly reflective surfaces which must also cause you some audio problems.

If ISF had an HT audio 'final exam' to weed out the also-ran's from the pro's, it would be this room!

If I get a chance I'll take and post some pics: once you see them I'm willing to bet your first suggestion will be "move" ;)

If ISF had an HT audio 'final exam' to weed out the also-ran's from the pro's, it would be this room!

If I get a chance I'll take and post some pics: once you see them I'm willing to bet your first suggestion will be "move" ;)Or consult UMR!!!

If you want to read about UMR's audio work check the owner's list at the bottom of my post. He does much better work than a real estate agent and he's cheaper. ;)