Originally Posted by Viche
I'm glad you feel justified. Couple of kinks in your logic though:
You're the one flying on "logic". I've been relating long term experience.
1. Dawn is anything but a "mild soap." It is a strong degreaser. It is just about a universally known truth amongst car detailers that it is the best thing to use when you want to strip the wax off your car in a single application... wax that can withstand sand, bug guts, acid rain, ice, salt, and direct sunlight for long periods of time.
You're still not getting it.
What in the world does that have to do with what I've described, which as I recall, was "1 drop of Dawn in 8 oz or so water, sprayed onto a microfiber cloth"?
Where are all the horror stories about using Dawn as I've described it on LCD screens?
In what relevant way is an LCD screen equivalent to car wax?
2. Sony is advising against using pure alcohol. Alcohol in a 50% solution with distilled water is what is used on multi-thousand dollar optical lenses with optical coatings. It is what would be considered a very mild solvent.
And now you're just making stuff up. The web page I quoted clearly said "alcohol".
Also, has it dawned (pun intended) on you yet that an equally "valid" analogy along the lines of your "wax stripping" one can be made for alcohol? I even gave a not-too-subtle hint in my last reply to you. Best just to drop it.
3. Cleaning with a water/mild soap solution would be using tap water by default. Tap water often is hard and contains minerals that can cause micro scratches on smooth surfaces, not to mention leaving a mineral residue that reduces clarity.
It absolutely does not have that effect on my eyeglasses with A/R coatings, and I clean them far more often with far more rubbing than ever touches a TV screen. And nothing shows residue quite like A/R coated eyeglass lenses.
More to the point, I've just looked closely at a 3 year old glossy-screen LCD monitor (NEC 20WMGX2) and my W4100, and the screens show no residue or scratches.
4. Cleaning anything in a circular motion is risky because if you happen to get any grit on your cloth, you will be causing scratches in swirls, which will most likely be more numerous and obvious than if you just went in a top to bottom motion.
Well, duh! The only thing I object to there is that you seem to be responding as if I said something different, when the truth is, I haven't commented on that aspect of technique at all.
I can't recall ever using "circular motions" to clean a TV screen. Jeebus, it sounds like you're still trying to cast everything in terms of your "car wax" strawman. You know, it seems your primary use of "logic" is to construct logical fallacies.
5. You wouldn't have to scrub alcohol in like you would a soap. Using alcohol with a top to bottom motion greatly reduces the amount of contact with the screen. No drying is necessary, as well, thus further reducing contact.
If you have something on your screen that requires anything beyond a dusting and then plain water (sneeze residue, dog noseprint, whatever), you will have to apply some pressure, and alcohol is not some magic wand. I've never had to apply anything but the mildest pressure, far less than I use to clean eyeglasses. Again, that's experience vs. "logic". And I simply don't understand why you think only alcohol can be used with a "top to bottom motion". That happens to be the only way I've ever cleaned TV screens. I also don't have to use a separate "drying" step, as I don't saturate the microfiber cloth with solution.
6. Manufacturer instructions, while geared toward protecting the manufacturer from lawsuits, do not always contain the best advice, especially when perfection is desired. They are meant as a best safe practice for non-experts.
I've yet to find any reason to violate this particular instruction. And while I haven't claimed it is harmful to use alcohol to clean an LCD screen, for all the times the instructions are too conservative, I think it is far more frequent that self-proclaimed "experts" ignore instructions and get themselves into trouble. Again, that's experience talking, not "logic" extrapolating into the unknown.
Do whatever the hell you want though. It's your TV. Enjoy.
I really appreciate that you keep giving me permission to do what works. It means a lot.