- Replaced my Sony 55w802A mainboard what next - 2 Updates
- Icepower 50ASX2 - 5 Updates
| modockesner@gmail.com: Jun 09 11:33AM -0700 Hi, I replaced the main board on my sony 55w802A with a 47w802A. The TV comes on and even flashed SONY across the screen once while trying to reset it to factory setting. However, it usually comes up and does one white flash followed by about 1/2 second intervals of green/amber. I think I need to replace its firmware. I have the firmware on a USB device and have put in in the USB port. However, I can't seem to get further then this following instructions on how to update firmware. If tried unplug 1 min and plug back in and hold up arrow and press power on. This does nothing. No text on screen. I have other replacement parts from a 47 inch model and am willing to replace these too. But it really seems like all i need is a s/w update. I assume all the s/w is the firmware. I'm I correct? Any advice welcome? |
| jurb6006@gmail.com: Jun 09 11:10PM -0700 First of asll these things are a pain in the ass. Second of all Sony is a pai in the ass. The different model, hel there could be ONE wire coming from the power supply that wiull make all the aprts incompatible. They all do this, you need the serial number to get parts. Just 1,000 away in serial numbers might make the parts non interchangable. They all do that but Sny is a fucking expert at it. I made a shitload of money fixing TVs in previous decades. I KNOW WTF I am doing. I KNOW whatt hey did and how, and I have proof. My current advice is to never ever try to fix a TV at all now. They are toasters. Get the longest extended warranty you can and save the box becasue under warranty EVEN THEY CANNOT FIX IT. You will be getting a new TV. The way it is now, you try putting the firmware from one model inbto another you got about an 80 % chance of bricking the mainboard. I do not have a TV anymore. Just gt a bigger PC moinitor and watch everything on the net. Fuvk TV. And this from someone who made a hell of a good living on TVs for a LOOOONG time. I did mods, I made shit work when the manufacturer intended fro it not to work, I BEAT T??HEM. I on many battles but in the end, they won the war. Buy the cheapest piece of shit TV you can and throw it in the garbage as soon as the warranty is up. Even if it works. That's if you really must have one of those pieces of suiot around you. Same for stereos. If it is not 30 years old, throw it in the fucking trash. It is either junk or so clogged up with "features" you can't even find the stereo in there. And it takes a fucking month just to learn how to work the goddamn thing. Fuck al this shit. |
| M Philbrook <jamie_ka1lpa@charter.net>: Jun 09 08:35PM -0400 In article <357ea6f8-a3d5-40a5-ba5a-8f7b08966491@googlegroups.com>, jurb6006@gmail.com says... > Anyone know where to get a deal on these ? Looking at this thing is ain't worth thirty bucks but the cheapest I can find is a hundred and that is probably with zero returns and all that. > Not acceptable. Fucking boss got his ass caught in a sling on this. Guess whose problem it is. > I could quit. But it would be nice to get one and be the cool one or whatever. I thought this was a repair place, not a PNP place. Jamie |
| Michael Black <et472@ncf.ca>: Jun 09 09:17PM -0400 |
| jurb6006@gmail.com: Jun 09 08:23PM -0700 I think it actaully already IS a Chinese knockoff. |
| jurb6006@gmail.com: Jun 09 08:24PM -0700 If I asked for a 2N5436 would that be better ? |
| jurb6006@gmail.com: Jun 09 08:33PM -0700 >"I have no idea what the thing is, but ..." Actually it is pretty nifty. It is a module with a dual channel 50 watt audio amp self contained and smaller than a PCI card for your PC. you putin 120 VAC, the inputs and you got the outouts. It is a SMPS p[ower supply with a cass D amplifier all on one board. There are no heat sinks at all except the copper on the board. In this case, the two channels are wired in a BTL or bridged coinfiguration yielding 180 watts. It was in an Eden bass amplifier. Don't get me wrong, I like the efficiency of class D. I think it is a fine and dandy idea, but when you stick power coomponents on a four layer board and they are al surface mount, it is obviously not meant to ever be repaired. It is a unit, and shall be replaced as such. And now, comes across the bench a Peavey, coupl hundred watts, class D, weighs nothing. Again, it is not the class D circuitry that is the problem, it is the fact that it is not built to be serviced. What's more, these things are supposedly for professional use, and as far as I am cincerned, they are not reliable enough. If I put the heftiest transistors available from Digikey in an amp, make sure the fan works and everyrthing, that musician can be fairly certain he won't need to change out amps in the middle of the gig. With SHIT like this ?I have no control over the process and what fried last time is likely to fry next time. This shit takes us all out of the loop. And that is what engineers do. |
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