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Ballast Repair Kit for Panasonic PT-50LC13 - Page 8

post #211 of 301
Does anyone know the values of D1315 power diode B2ZAZ0000020 ?

(It's located on the Ballast Board)
post #212 of 301
What values do you need for D315? I think I pretty much explained it. The service manual clearly shows that it is not a diode and will not test as one.
post #213 of 301
There was mention that this kit is an "upgrade" kit. Has anyone confirmed the components in this kit are different or better than the original ones?
My first bulb lasted around 2 years and my second bulb just blew so it got around 4 years of life.

I'd hate to risk screwing something up trying to fix something that may not be broken. However, if replacing the ballast components will give me a longer bulb life then it would probably be worth it.

Thoughts?
post #214 of 301
I'm currently trying to replace parts but the desoldering is not working. I know the iron has heat because I can feel it coming up the wick, but the solder does not appear to be melting and wicking. It looks like a little did, but there's much left over.

Can anybody tell me the wattage they have on their soldering iron? Or am I doing something wrong to get the solder to wick?

Help?
post #215 of 301
replaced lamp 5 months ago. came home the other night, turned on tv and the lamp will not light. I have a blank screen. I have the same error code as many people in this forum. i turn on the power, the power button flashes green for a while, then flashes red and the lamp indicator light flashes once every 5 sec. it does this until i unplug my tv. I took out the lamp encloser and inspected the lamp and could not see anything wrong with it. I fear that it is a problem with the ballast. the part #LSEB3163A. Have not been able to find a ballast repair kit for my model of tv. will the LSC0022 work for my ballast also. or does anyone have some suggestions for me. PLEASE HELP ME.
post #216 of 301
Well, I replaced the parts and I still have that rattling noise in the ballast when I turn it on. I had a 25% chance of replacing the right transistor and I lost. I'm definitely not going to Vegas to try my luck...

I guess I need to replace the other 3 transistors. That rattling sound REALLY sounds like it's coming from one of those.

Does anybody know if radio shack would have available transistors with the proper specs? I looked, but I don't know what the specs are on the Panasonic transistor.

Should I order the other 3 transistors (about 4$ each) and replace?

Any help would be appreciated.

Brogers? Tomwil? Anybody?
post #217 of 301
Quote:
Originally Posted by kgharlow View Post

replaced lamp 5 months ago. came home the other night, turned on tv and the lamp will not light. I have a blank screen. I have the same error code as many people in this forum. i turn on the power, the power button flashes green for a while, then flashes red and the lamp indicator light flashes once every 5 sec. it does this until i unplug my tv. I took out the lamp encloser and inspected the lamp and could not see anything wrong with it. I fear that it is a problem with the ballast. the part #LSEB3163A. Have not been able to find a ballast repair kit for my model of tv. will the LSC0022 work for my ballast also. or does anyone have some suggestions for me. PLEASE HELP ME.

I spoke to a certifed panasonic repair man about the problem and he got with panasonic about the ballast, he told me they have now upgraded it twice that its a defective part and the new replacement part # is only available to certified panasonic service centers. I thought this was very enteresting since i talked to panasonic customer service myself and they would not admit that its a faulty ballast also the replacement ballast cost is 67 dollars not 500 like the origonal.
post #218 of 301
Quote:
Originally Posted by ender6656 View Post

Well, I replaced the parts and I still have that rattling noise in the ballast when I turn it on. I had a 25% chance of replacing the right transistor and I lost. I'm definitely not going to Vegas to try my luck...

I guess I need to replace the other 3 transistors. That rattling sound REALLY sounds like it's coming from one of those.

Does anybody know if radio shack would have available transistors with the proper specs? I looked, but I don't know what the specs are on the Panasonic transistor.

Should I order the other 3 transistors (about 4$ each) and replace?

Any help would be appreciated.

Brogers? Tomwil? Anybody?

I just ordered an additional three from Audio Lab of GA

Can't post the URL yet because it's my first post, but the part number is 2SK2842 made by Toshiba. Google the part number and you'll get a link of it to audiolabga.com.

Never ordered from them before, but they are in Georgia. Cost was $3 each plus shipping. I received the kit but haven't done the repair yet. Figured I would just order an additional three transistors and replace them all for the extra $15 of parts and shipping.
post #219 of 301
I replaced one transistor with the four together and I still got clicking. I'm going to order one transistor and replace the one that is all by itself. That is where, after further inspection, I think the clicking is coming from. I'll let everybody know if it works when I'm done!!

KGHARLOW - I called a couple certified dealers and they said they needed to see the TV. Did you get around that or were they just nice enough to research for you that price on the ballast? That would be a big deal if this last transistor doesn't work...
post #220 of 301
From posts several years ago, this part LSUC0022 was refered to as a "Ballast Repair Kit, or "Ballast Service Kit". Today I went to Partstore.com to order the part by the number (as recommended on the earlier posts) but it is called an Inverter Kit, and the picture seems to be one item. Does anyone know if that is the right part?
post #221 of 301
I have the following problem. My set is about 5-6 years old and never had a problem before.
The lamp is original, never changed it.
What happens now is it turns on fast, the green power led flashes only for few times, then the lams is on and all is fine.
But after about five minutes the lamp goes off, power led starts blinking red once every second and LAMP led starts blinking red every five seconds. If I don't do anything to the set it stays in this mode indefinitely.
If I press power button it turns on again stays on for about 5 minutes and shut off with the same symptoms again.

I pulled out the lamp and upon inspection it seem fine to me. Mey be some internal problems but as far as I can see nothing wrong from the outside.
I ordered the repair kit and managed to replace all the parts except for power transistor, just for the fact that there is only one in the kit and four on the board and I just don't know which one to replace.

Turned the set back on, nothing changed, the same story again. Goes on, stays on for about 5 min and then off with two leds blinking red.

Should I go for it and order the new lamp or there is something else I can do while I have unit open?

Of just forget it and get new LCD for the few more bucks?

Thanks
post #222 of 301
Quote:
Originally Posted by salexander View Post

From posts several years ago, this part LSUC0022 was refered to as a "Ballast Repair Kit, or "Ballast Service Kit". Today I went to Partstore.com to order the part by the number (as recommended on the earlier posts) but it is called an Inverter Kit, and the picture seems to be one item. Does anyone know if that is the right part?

If you click on the link, you will get a page saying "This Panasonic LSUC0022 Inverter Board Repair Kit works with many Panasonic projection televisions." I think the picture they show is wrong.

To be fully sure you are getting the right part, you may want to order from Panasonic directly.
post #223 of 301
Quote:
Originally Posted by NYHAMMER View Post

What happens now is it turns on fast, the green power led flashes only for few times, then the lams is on and all is fine.
But after about five minutes the lamp goes off, power led starts blinking red once every second and LAMP led starts blinking red every five seconds.

This really sounds like an overheating problem. Any possibility the TEMP LED might be flashing also?
post #224 of 301
Quote:
Originally Posted by tomwil View Post

This really sounds like an overheating problem. Any possibility the TEMP LED might be flashing also?

Nope. No TEMP led is flashing. All 3 fans are running fine.
I will tell you even more, I would say that with some bright picture it takes shorter period of time to turn off.
If the screen is dark, like when there is only screen saver from DVD player is running it may take even 20 minutes for the set to turn off.
post #225 of 301
Thanks. I went to the Panasonic site and that part number is called "Service Kit" with nothing else to further describe it or picture. I hope it is the right part. I really appreciate your response.
post #226 of 301
Quote:
Originally Posted by NYHAMMER View Post

Nope. No TEMP led is flashing.

Well, in the service manual, there is no sequence of blinks mentioned that you are having. The closest sequence mentioned is with the TEMP LED blinking once every 5 seconds (maybe your TEMP LED is burned out?).

With that, this is what is mentioned in the manual:

"POWER LED flashes orange 5 times every 5 seconds.
TEMP LED flashes once every 5 seconds.
LAMP LED flashes once every 5 seconds ...

Abnormal Voltage on 33 V line of Main C.B.A.

Replace the Power C.B.A. Still No Good, replace the Main C.B.A. Still No Good, replace the Tuner C.B.A."

The service manual depends on board replacement, not component-level repair. So, it is difficult to determine what might be causing your error codes.

I had mentioned on another thread that it could be your lamp that is causing the problem. Possibly your TV circuitry is detecting abnormal voltages with your bulb; it could be drawing too much current to keep it lit because of its age. If it was temperature related, the temp light usually flashes instead.

Lamp replacement is iffy. Off-brand lamps, although less expensive, can be unreliable. And, the official Panasonic lamps still seem to be pricey but the most reliable. But since the price of similar sized LCDs and Plasmas have come down so much in price, it may be worthwhile to consider an upgrade instead.
post #227 of 301
Actually my case more or less matching error 5 in the service manual.

The power LED doesn't flash orange at all. I flashes red every second.
And LAMP LED flashes red once every 5 seconds.

Error 5 has many causes, I "fixed" the ballast with above mentioned kit.
So there is lamp itself left.
With original panasonic lamp cost in the area of $300 I can't justify spending that much on outdated set.
So if I will go lamp replacement route it would be some cheap $100 replacement lamp.

Now the question is should I risk it or just forget this thing altogether and go for the new set.


P.S. Actually the best match for my LEDs flashing sequence is "Forced cooling" which is listed last in the manual. I never waited for the whole 10 minutes.

Manual doesn't say anything about how to fix this condition.


ANy thoughts on that?


Thanks !!
post #228 of 301
After reading the service manual I now think the problem is with Thermal Fuse Unit.
The manual indicates that in case of error 5 the first thing should be check it the thermal fuse.

Error Number - 5
Symptom - Lamp turns off ...
Problem - Lamp is not cooled off. Thermal fuse unit is defective(open). ...
Possible solution - .... Confirm that the Thermal Fuse Unit on the lamp house is not open.
post #229 of 301
Quote:
Originally Posted by NYHAMMER View Post

After reading the service manual I now think the problem is with Thermal Fuse Unit.
The manual indicates that in case of error 5 the first thing should be check it the thermal fuse.

Error Number - 5
Symptom - Lamp turns off ...
Problem - Lamp is not cooled off. Thermal fuse unit is defective(open). ...
Possible solution - .... Confirm that the Thermal Fuse Unit on the lamp house is not open.

You may be right. I always associated #5 with a non-operative lamp, but it apparently also includes the lamp turning off. The power LED sequence flashes green for 140 seconds then flashes red is indicative of #5.

Checking the Thermal Fuse is easy by shorting out the terminals temporarily to bypass the fuse, and then seeing if the lamp stays on.

Please let us know if that solves your problem.
post #230 of 301
No luck with thermal fuse unit.

First I just took it off lamp housing so it would not be heated at all.
The same results. 5 minutes and lamp goes off.
Than I shortened that fuse just to make sure.
The same results.
So now the only hope is the lap replacement.
May be something wrong with the lap itself and it drows too much voltage or something ...
post #231 of 301
Got this TV from my in-laws. It is a PT-52lcx15. Went out, they called a
"authorized" panasonic repairman who charged them 200 bucks to tell them it needed a new ballast and for 600 more would fix it. They just went and bought a plasma for 799 and were done but told me that I could have it if I could fix it. I am a technician but on commercial 2 way radios and don't have much experiance on TV's. Anyway I was wondering if I find this is really what I need if the Kit would also work for this model. Can't find the service manual anywhere but the parts list fro panasonics parts ordering page does list all the parts in the kit. (the newer one) This thread has already provided a great deal of info.

Thanks.
post #232 of 301
Quote:
Originally Posted by clancejr View Post

Anyway I was wondering if I find this is really what I need if the Kit would also work for this model (PT-52lcx15). Can't find the service manual anywhere but the parts list fro panasonics parts ordering page does list all the parts in the kit.

If you matched up the part numbers in the kit with the part numbers applicable to your set on the Panasonic site, the ballast kit should apply to your set. At least it is worth a try; the most you will be out is about $25 and some of your time, and it could have your set working again.
post #233 of 301
The new lamp solved the problem.
I don't know if I can post links in here but I got it for $104 with housing delivered from ELECTRIFIED DISCOUNTERS.

I hope this info will help somebody.
post #234 of 301
Replaced the lone transistor. No dice. I still the fast rattle, 2 sec break, fast rattle again, then a 10 second break, repeat rattles again in this sequence twice more, then nothing. Red light blinks every second. Fan stays on. I can press the power button and the TV will try to turn on again with the rattles.

I could replace the last 3 transistors, but I don't think it's them. The rattle is coming from someplace I can't pinpoint.

Time to cut my losses.

Cheers, everybody.
post #235 of 301
Quote:
Originally Posted by slwog View Post

I just ordered an additional three from Audio Lab of GA

Did you replace them all and what was the outcome?
post #236 of 301
I purchased a pt50lc13 on craigslist yesterday. The owner indicated that the repiar shop said the problem was with the power inverter board. I have been following this thread as part of my search to discover what is wrong with this TV.

My error does not exactly match that of error code 5 in the service manual, nor does the error match anything else in the service manual, however i belive poster towmil has the closest match to my issue. Upon power-up the screen flashes and after about 1 min the power light flashes red continously and the temp light flashes 1 red flash and then after about 5 sec is followed by 3 red flashes and repeats. Based on this my issus is either error 5 ,9 or 11. My gut tells me that the problem is as reported here the ballast board.

There is a place about 25 miles north of the Cincinnati, OH area that had the ballast repair kit in stock for $19.00. I drove up this afternoon and picked up the kit. I will replace the compnents this afternoon and will post if all worked well or not.
post #237 of 301
Nice that NYHAMMER brought some reality to the board. I applaud so many people interested in organic capability by doing their own repairs. A ballast kit isn't a guaranteed repair and more often it is the lamp. D315 is a trigger diode that most of you can't test. It only works to start the lamp. If lamp lights for 30 seconds and then turns off then D315 and C1330 are probably good. C1330 is a pretty crummy type of capacitor. I checked it on my meter and it started out at an ESR of 2 ohms and increased to 6 ohms after a couple of minutes. Typical of polyester. If you change, get a polypropylene that is typically less than a half ohm. As the lamp looses gas, the run voltage goes up. This is sensed by the ballast and it shuts down. This won't be visually obvious with the lamp. If I had a real use for it I would convert mine to a high power LED. $100 is out for this behemouth. I'm in Cincinnati if you need any parts.
post #238 of 301
Well i replaced the ballast and i still have the problem here are the codes: power flashes green with temp light 1 red followed by 3 red repeat. I suspect that i either did something wrong on the ballast or i need a temperture sensor (R2821). or projection unit. i am most certainly looking for spare parts.
post #239 of 301
Well, I'm getting the flashing LEDs and shutoff conditions on my lovely POS indicative of a ballast that's failing.

Does anyone have instructions for replacing part number LSEB3087A?

I believe it is a full ballast assembly for PT-50LC13. There's no way I can desolder/solder the components piecemeal.
post #240 of 301
Quote:
Originally Posted by AcuraCL View Post

Does anyone have instructions for replacing part number LSEB3087A?

http://www.avsforum.com/avs-vb/showp...3&postcount=71
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