Panasonic TC-50PU54 8 blinks picture flashes then dead

[tvtimmy]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Post a picture of your board. I dont know where those numbers come from. The two that go bad are on tbe end by the 2 big redish/ brown poly caps. They are the only things on the heatsink.

[2myCharlie]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

I have tested the continuity of this D16041, R16051, and Q16051 without issues, do I need to replace them? Second, is there a way to resolve the arching marks on the SS board holes? If so, what's the best way to do so?

[tvtimmy]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

They come with the resistor because it is a .005 cent part. Maybe sometimes it burns up but I never experienced it. Changing both IBGTs with subs is just what I do. Its like having a low profile tire on the drivers side, and a snow tire on the other. There might be a speed difference between the 2 that could cause a shutdown. Trial and error will a new thread.

[fluxflux]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

OK, thank you for the info.
But why do all the Repair Kits contain the resistor...?

Another question. When I sub with one of the mentioned parts....

Why to sub both? Because of the different values?

[tvtimmy]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

I have never found the resistors to go bad on this model. Just replace one DG302 or sub it with a gt30j124(if you sub, you should do both). Another substitute is FGPF4536. With the DG302 pulled from the board, check the diode next to it. Remember to touch up the solder top and bottom, of the screw holes.

[fluxflux]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Hi All,

I will receive a TX-P50UT50E with the 8 Blink on Saturday.

Just to be prepared in ordering the replacement parts:

What is the size of the 5R6 resistor. (R16051: D0GF5R6JA047)
http://www.resistorguide.com/resisto...-and-packages/

Could I also use a 1Watt Rresistor instead of the 1/3Watt ?

Kr

FluxFlux

[ajshoe]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

just repaired TC-P50U50 set with bad Q051. make sure you tighten all the board screws in this set - I found 4 of them that were loose. Might be worth replacing all of them with lockwashers.

[TvSmartParts]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

This 8 blink issue where the tv turns on for a split second and then turns off IS the SS board with out a doubt.

[tw2005]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

OK I've pulled the SS board off and found that the top screw had scorch marks on it. Is it safe to assume that this board had grounding issues and is fried? I'm going to see the board off for repair, what screws should I get to prevent this from happening again?

looks just like all the others we often read about. Pretty much any panasonic Plasma 2011-2012 had issues with these bolts working loose on both sustain boards,

The seller gives suggestions on what you need to do after you get the repaired board back to complete the job properly,

Two options is to reuse those blts and put some loctite or threadlock on the threads or use the correct bolts which were in every Tv before 2011.

http://www.shopjimmy.com/panasonic-x...-screw-kit.htm



I would go with the new ones simply because if the solder lands compress at least the spring washer will expand but clean up all the scorch marks and check out the SC board too.

[yankmccobb76]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Took a couple pictures.

[yankmccobb76]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

OK I've pulled the SS board off and found that the top screw had scorch marks on it. Is it safe to assume that this board had grounding issues and is fried? I'm going to see the board off for repair, what screws should I get to prevent this from happening again?

[yankmccobb76]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

If you want to just take a gamble then i'd go with the SS board as it's a known issue. Chances of it being A-board would be slim.

It's doubtful you'll find a board now or cheap but why not try this seller.

Sold over 270 repair jobs with 100% feedback and board is tested in a TV after repair. $44 for parts and labour + wty is giveaway prices. he does a lot of other boards too.

Maybe explain the situation and they could check out the board prior to repair in case it's ok and let you know but i think it will be blown and you should replace those bolts with something better or make sure they are tight on both the SC & SS boards.

http://www.ebay.com.au/itm/TNPA5623A...-/301295453582

I may give this a try, I think it's worth the gamble for that amount of money instead of having to buy a new tv. Can you tell me from that picture I attached which board is the SS board? I really appreciate the help.

[tw2005]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Troubleshooting guide says SS or A board is the likeliest culprits. Any chance I could buy those online affordably and just replace both?

If you want to just take a gamble then i'd go with the SS board as it's a known issue. Chances of it being A-board would be slim.

It's doubtful you'll find a board now or cheap but why not try this seller.

Sold over 270 repair jobs with 100% feedback and board is tested in a TV after repair. $44 for parts and labour + wty is giveaway prices. he does a lot of other boards too.

Maybe explain the situation and they could check out the board prior to repair in case it's ok and let you know but i think it will be blown and you should replace those bolts with something better or make sure they are tight on both the SC & SS boards.

http://www.ebay.com.au/itm/TNPA5623A...-/301295453582

[yankmccobb76]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Troubleshooting guide says SS or A board is the likeliest culprits. Any chance I could buy those online affordably and just replace both?

[Alastair E]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

I've got a TC-P50UT50 about 3 years old that crapped out on me a few days ago. I know nothing about tv repair, never soldered anything in my life, don't own a volt meter. I would like to replace the correct board but not sure really how to go about doing it without being able to test anything. I could use some help please. I've attached a couple pictures. I unplugged the power wire on the left side of the picture and the blinks switched from 8 to 7…..does that mean that the left board is bad? If so, where can I get that board online? Is it as simple as unscrewing a fews screws to replace this board?

I really appreciate any help given, always loved the picture of this but can't afford to put hundreds of dollars in to fixing it.

Hmm....

Well, you are gonna have to buy/borrow at the very least a digital test-meter, that will read ohms, volts etc!
--without some checks, its going to be difficult/impossible to say what has failed....

[yankmccobb76]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

I've got a TC-P50UT50 about 3 years old that crapped out on me a few days ago. I know nothing about tv repair, never soldered anything in my life, don't own a volt meter. I would like to replace the correct board but not sure really how to go about doing it without being able to test anything. I could use some help please. I've attached a couple pictures. I unplugged the power wire on the left side of the picture and the blinks switched from 8 to 7…..does that mean that the left board is bad? If so, where can I get that board online? Is it as simple as unscrewing a fews screws to replace this board?

I really appreciate any help given, always loved the picture of this but can't afford to put hundreds of dollars in to fixing it.

[scotha]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Yes, I replaced the driver, transistor, diode and resistor that comes as a kit but did not notice that the optocoupler was broken off. Thanks again.

[tw2005]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Thankyou! the pads are still intact but you can see where the legs were soldered to the pads.

clean break, that's handy then. does look like someone has been soldering in there. Did you replace the Driver IC? Someone found after their new parts were installed it shorted agian needing the driver IC replaced to finish the job.

https://www.badcaps.net/forum/showthread.php?t=49048

[scotha]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Thankyou! the pads are still intact but you can see where the legs were soldered to the pads.

[tw2005]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Sorry to intrude on an existing thread I'm not able to open a new thread for some reason. I have the tc-50pu50 with 8 blinks also and replaced the parts on the ss board to correct this and noticed that component PC251 broke off the board and is nowhere to be found, does anyone know what this component is? It is on the TNPA5623 ss board.

optocoupler, PS2701A-1-F3-A. Pretty common on the panasonic boards if you happen to have any old SS or SC boards that are scrap.

Broken off implies the pads are torn off too. could make it had to fix