42' plasma....tatung

[PlainBill]

Re: 42' plasma....tatung

can any one give me a link to digikey....to find 220uF 16V radial and 1500uf 16V.....at the same place ...i would like to keep my order all together if i can?....i tryed to find these caps but i dont know how?part number or keyword?...dont know keyword for caps?....thx yall....please help me

The keyword for caps is 'capacitor'. Here is a slightly dated procedure for locating an appropriate cap. Note: make sure you are choosing the proper series of cap.

PlainBill

[momaka]

Re: 42' plasma....tatung

For keyword, just type in the uF and voltage ratings of the cap and it will give all caps with those specs (for example, you can type "1500uF 16v").
Then just use the filters to narrow it down. Usually you'll want to select "Through Hole", and everything with "105C" under "Maximum Temperature" (note that you can select multiple values for each filter box). Also make sure to check the "In stock" checkbox.
Play around with the other filters and see what they do.

Here's a link that contains all the caps:
http://search.digikey.com/scripts/DkSearch/dksus.dll
I do, however, encourage you to go to the digikey website and try to find the caps yourself (that way you can get some practice).

[medamotcha]

Re: 42' plasma....tatung

thx yall for helping me ....yes i figerd out how to order....and id did order...but damm..it cost more for the shipping than for the parts that i needed....9.00$ for shipping and 3.50$ for parts....but its cool better than paying for another tv....thx yall for everything

[PlainBill]

Re: 42' plasma....tatung

thx yall for helping me ....yes i figerd out how to order....and id did order...but damm..it cost more for the shipping than for the parts that i needed....9.00$ for shipping and 3.50$ for parts....but its cool better than paying for another tv....thx yall for everything

That's because you choose the wrong shipping option!!! Digikey will ship First Class Mail. It would have cost about $2.00 for shipping.

PlainBill

[medamotcha]

Re: 42' plasma....tatung

i havent got my parts yet, in the mail....should be here on the 5th jan new year.....i havent forgot about posting the finished project...and showing yall....thx for everything....i have a another tv i need to fix...but after this one....one at a time.........i killed two bird with one stone....i orderd for my puter also...need a cap also..but i new witch one was bad already....but yall showed me how to order...so thx a million....to all....and ill be back

[weirdlookinguy]

Re: 42' plasma....tatung

Thanks medamotcha. Too many people ask for help and never get back to us on whether or not they fixed the problem. Happy new years and keep us posted!

[medamotcha]

Re: 42' plasma....tatung

well guys ,not so good the tv dident not fire up...still doing the same thing...what do i need to check out?....one good thing i got my computer to fire up..replace a bad cap on mother board...so guy what do i do next?i replaced 2 caps on the y and the x board...at the bottom of each board...let me know..thx yall

[medamotcha]

Re: 42' plasma....tatung

do yall thing that the 22uf 24V is wrong cap for the tv? and it would have to be 22uf 20V?ill get a pic of the caps that i orderd and post to let you know whitch one i have...thx yall

[medamotcha]

Re: 42' plasma....tatung

can i get some feed back please? need help!

[momaka]

Re: 42' plasma....tatung

do yall thing that the 22uf 24V is wrong cap for the tv? and it would have to be 22uf 20V?

Shouldn't matter. As long as the new cap has a voltage rating that is the same or higher (it this case it is), it should be fine. Manufacturers do it all the time too.

[medamotcha]

Re: 42' plasma....tatung

so what shoud i do?what do i need to test?i need help to trouble shoot?this aint going to be easy...or should i replace everything on the y-main?

[medamotcha]

Re: 42' plasma....tatung

help me guys....please

[PlainBill]

Re: 42' plasma....tatung

help me guys....please

OK, I'm going to try to be gentle here. That probably means that I will offend someone. Big deal, I've got a toothache.

I just finished reading three pages of posts, searching for a description of the problem, a description of what you have done, and even the model number of the TV. I also stared at a number of pictures that look like they were taken with a cell phone.

This is what I have been able to discern.

1. You don't have a lot of experience with electronics.

2. You know even less than I do about plasma sets.

3. This is a Tatung P43HSMT-U01 TV. It is a 42" with Samsung panel and probably driver, scan boards, and power supply.

4. It turned off while someone was watching Britney Spears.

5. You replaced some caps, but are a little vague about the specs of the originals and replacements.

6. The TV powers up, but the power LED is the wrong color and while there is sound, there is nothing on the screen.

7. You have an exaggerated idea of the fame of Daytona Beach.

Now for some questions.

Are all of the above statements correct (#7 doesn't count)?

Wizard pointed out a chart showing the voltages the panel requires. Does the power supply have labels showing those voltages?

If so, have you measured them - CAREFULLY? The voltages are high enough to give you a lethal shock.

Do you have a decent camera?

Are you willing to learn how to attach pictures using the 'Manage Attachments button?

PlainBill

[medamotcha]

Re: 42' plasma....tatung

its ok,none offended..that y i have the computer guy bashing his head on the computer..as my sig.....thats me.....but i know how to read a meter....and restance.....its the uf thing that new to me.....now i thoght i posted the voltages...but thair differnt when i look at the caps voltage on the board...
so i dont under stand....but if thar any caps that have exploded i can find.i know what to look for.but it looks like i need a ESR meter.dont i?so really that the bottom line......but one thing cant i just replace all caps till she fires up?one board at a time...well it would be y and the x board..but you tell me what to do and ill do it.....i love this shit...learning...help me out please...i can do it

[medamotcha]

Re: 42' plasma....tatung

manage att are easy to post...is that the way you want me to post?

[PlainBill]

Re: 42' plasma....tatung

its ok,none offended..that y i have the computer guy bashing his head on the computer..as my sig.....thats me.....but i know how to read a meter....and restance.....its the uf thing that new to me.....now i thoght i posted the voltages...but thair differnt when i look at the caps voltage on the board...
so i dont under stand....but if thar any caps that have exploded i can find.i know what to look for.but it looks like i need a ESR meter.dont i?so really that the bottom line......but one thing cant i just replace all caps till she fires up?one board at a time...well it would be y and the x board..but you tell me what to do and ill do it.....i love this shit...learning...help me out please...i can do it

Right now I don't know what you need because I don't know what the problem is. The first question: Is the power supply putting out the proper voltages? If it isn't, we try to fix the power supply. That may require an ESR meter. (Or not, look at the posts by Kevin O'Henly. He fixed his by replacing a bad diode!) If the power supply is putting out the right voltages, we start troubleshooting elsewhere.

I've searched for information on this TV, and there is darn little available. Some power supplies have the output voltages listed. If this one does, at least checking the voltages will be easy. If it doesn't, there may be other ways to get the information.

This board accepts pictures up to 2000 pixels X 2000 pixels. You can get a lot of detail in a picture that size, but if you include a picture that big in the message like you did, it makes it difficult to read the message. Posting links like you did results in smaller pictures, but it is hard to see many details.

By attaching the pictures thumbnails will be added to the message. By clicking on them I can open them in a new window and see all the detail.

The first thing I will need is a single picture showing the power supply in as much detail as possible. Then take a second picture showing one or more of the output connectors on the power supply. I'll be looking for the markings on the board next to the connector.

PlainBill

[PlainBill]

Re: 42' plasma....tatung

Lesson 1: Basic capacitance. If you've ever had your own well and pump you are familiar with the storage tank that is part of the system. The pump will run until the tank is nearly full of water, then it turns off. If you draw a little water from the faucet (to get a glass of water, for example) the tank supplies it. If you draw a lot of water (to fill a bathtub) the pump turns on. A capacitor works a little like that. Except it gets 'refilled' 120 times a second, or even more.

A storage tank has two ratings - size and pressure. If it is too small, the pump would turn on when you run the water to wash your hands. If it was big enough that you could wash your car without the pump running it would cost too much. The storage tank is also rated for pressure. Normal house pressure is 40 - 80 PSI. You don't want a tank rated at 20 PSI (or even 80 PSI); it could explode.

There is a third factor in a storage tank - the size of the inlet and outlet fittings. It would take a long time to fill the tank if the inlet and outlet pipes were 3/8" pipe. Showers wouldn't be much fun, either.

The voltage rating of a capacitor corresponds to the pressure rating of a storage tank. The actual voltage will always be less than the rated voltage. The capacitance value corresponds to the size of the storage tank. And the ESR rating is like the pipe size of the inlet and outlet.

PlainBill

[momaka]

Re: 42' plasma....tatung

The voltage rating of a capacitor corresponds to the pressure rating of a storage tank. The actual voltage will always be less than the rated voltage. The capacitance value corresponds to the size of the storage tank. And the ESR rating is like the pipe size of the inlet and outlet.

Excellent analogy PlainBill. Couldn't have put it any better.

medamotcha: follow PlainBil''s advice - start with analyzing the PSU and see if the proper voltages are present. If you determine PSU is not the problem, start looking elsewhere. Your problem might not have anything to do with the capacitors at all, so replacing them at random might not help as much as you'd like.
I've read through the last 3 pages as well, and I too couldn't tell clearly what was happening, other than the TV not turning on. With that said, perhaps post some high quality pictures (if possible). Look up all of the caps on the PSU (and maybe other boards too), then post their brand/series/other ratings here. Look for anything that looks discolored. Check all joints near transformers and hot-running areas. Check all of the bigger resistors and diodes in the PSU.
If you're new to electronics and don't really understand some of the stuff we mentioned here, maybe this TV is just one of those projects that you put away in the closet for a while until you gain more knowledge and experience. TVs like this can be quite complex, especially for a first project. They're not easy to troubleshoot as well (hence why you might not see that many people replying).

[mockingbird]

Re: 42' plasma....tatung

I think I have a variant of this screen.

Model: AKAI PDP4273M

At first glance through the vent holes the capacitors look OK.

Symptoms:
When I first took this from the trash, it was a cold wet night. Luckily it was inside the Viega box from the new set that the owner had probably replaced this one with. Brought it home, turned on, picture is there but it's really grainy and odd. Next morning when it had come to room temperature, it would not turn on at all which leads me to believe it is cap failure.

In any case, I'll deal with it when I have the will. The thing must have a thousand screws and weighs a ton.

Oh yea and it was missing the stand. I wonder if I could build my own Plasma mount instead of paying $80 for a wall mount which I anyways don't want. And the generic stands cost $130.

[PlainBill]

Re: 42' plasma....tatung

I think I have a variant of this screen.

Model: AKAI PDP4273M

At first glance through the vent holes the capacitors look OK.

Symptoms:
When I first took this from the trash, it was a cold wet night. Luckily it was inside the Viega box from the new set that the owner had probably replaced this one with. Brought it home, turned on, picture is there but it's really grainy and odd. Next morning when it had come to room temperature, it would not turn on at all which leads me to believe it is cap failure.

In any case, I'll deal with it when I have the will. The thing must have a thousand screws and weighs a ton.

Oh yea and it was missing the stand. I wonder if I could build my own Plasma mount instead of paying $80 for a wall mount which I anyways don't want. And the generic stands cost $130.

Do you want a stand / mount that looks good, or just something that works? I'm maybe facing a similar problem, the VERY CRUDE attached sketch is what I came up with. It's a braced inverted T.

These sets have mounting holes on the back. It's a metric thread, so keep that in mind when shopping. I'd figure on using a pair of 2 x 4's. The verticals would come up at least 2" past the upper mounting holes. The horizontal pieces should extend at least 6" in front of the screen. Use 4" drywall screws to hold the wood together, and at least 8cm long metric bolts of the appropriate diameter to mount the TV to the frame. Predrill all holes so you don't split the wood. If you countersink the screws holding the base to the upright you can get by with putting a towel on whatever surface you're setting it on.