Panasonic tc-p50s30 su,sc,ss repair help

[bman4]

Re: Panasonic tc-p50s30 su,sc,ss repair help

yeah i was reading and got Moving Picture Resolution 900 lines mixed up with 1920x1080.

i also though it was 900p because it's hard to get this to scale properly.

i hope the firmwire update will fix all this

the st an gt both have 1080 Moving Picture Resolution!

not noticablet the the human eye but i'm like 4 feet away so i might actually notcie!

[tw2005]

Re: Panasonic tc-p50s30 su,sc,ss repair help

as easy as legoes.

i just desovered that it's a 900p panel witch is slightly disapointing to my ocd!

im still on the orginal firmwire because i cant find my memory card and they dont suport usb or network update untill a later firmwire.

i notice that scaling sometimes sticks off the left a centimeter unless you flicker scaling a couple times.

i cant wait to see what the update achives, first i gotta ither pay 10 for a 2gb or borrow one.

it also get's stuck when you just alt tab a game but works fine when you close normally.

the brightness fluctuation is another glitch im experienceing!

the up side this panel has no burn in.

i have the setting as low as possible and have been running the 15 min image retention scroll atleast once a day with a constant changing back ground.

someone mentions to do this for the 200 hour break in, it's almost been 72 hours now on and off.

these panels have something like 100000 hour till half life with equals 4 hours a day for 54 years.

these panels are extinct like the dinosaurs so im going to try my best to peserve and educate the future owner on how to do so as well.

my next project is a 54 inch that just randomly shuts off, i hope it's just bad caps.

the owner is not smart enough to get the exact model number but im prety shure it's a full 1080 froma sear of all 54 incher's

i just hope there was no serious neglect to the panel because of how un educated the owner is about tv's so i'm just go take a look and see what condition it's in first.

thank you again,
sincerely,
Bman4

S30 should be 1080p

54" panasonic? random shutdown, could be A board issue, heat affected, you'd have to give us more info in another thread.

[bman4]

Re: Panasonic tc-p50s30 su,sc,ss repair help

good, how easy was that

as easy as legoes.

i just desovered that it's a 900p panel witch is slightly disapointing to my ocd!

im still on the orginal firmwire because i cant find my memory card and they dont suport usb or network update untill a later firmwire.

i notice that scaling sometimes sticks off the left a centimeter unless you flicker scaling a couple times.

i cant wait to see what the update achives, first i gotta ither pay 10 for a 2gb or borrow one.

it also get's stuck when you just alt tab a game but works fine when you close normally.

the brightness fluctuation is another glitch im experienceing!

the up side this panel has no burn in.

i have the setting as low as possible and have been running the 15 min image retention scroll atleast once a day with a constant changing back ground.

someone mentions to do this for the 200 hour break in, it's almost been 72 hours now on and off.

these panels have something like 100000 hour till half life with equals 4 hours a day for 54 years.

these panels are extinct like the dinosaurs so im going to try my best to peserve and educate the future owner on how to do so as well.

my next project is a 54 inch that just randomly shuts off, i hope it's just bad caps.

the owner is not smart enough to get the exact model number but im prety shure it's a full 1080 froma sear of all 54 incher's

i just hope there was no serious neglect to the panel because of how un educated the owner is about tv's so i'm just go take a look and see what condition it's in first.

thank you again,
sincerely,
Bman4

[tw2005]

Re: Panasonic tc-p50s30 su,sc,ss repair help

i fixed all the line's, it's beautiful!

good, how easy was that

[bman4]

Re: Panasonic tc-p50s30 su,sc,ss repair help

i fixed all the line's, it's beautiful!

[bman4]

Re: Panasonic tc-p50s30 su,sc,ss repair help

i just installed the new su and it fired up, i got a couple lines to work out but it fired right up no erros.

im only working on the ribbions witht he tv off so i cant mess up,
ill get back as soon as i fix the lines!


thank you,
sincerely,
bman4

[bman4]

Re: Panasonic tc-p50s30 su,sc,ss repair help

Okay ive just been reading to much.

I read somewhere that they got a panasonic to stay on with solid led with bufers isolated but thats a diffrent model, 50gt50 or something.

When people where mentioning that the 8 blink could be faulty panel i got a little strssed out because i checked every pixel with a flash light for faults or crack's and found none and i thougt it might be a internal gas leak.

Im ordering the new su on aug 7, ill get back as soon as it's installed.

I already read the manual onece a while ago,im just going to read it again and maybe learn something new!

The ammout of help i see you provided on these forms is outstanding &priceless you should be paid for the services you provide to the comunity!

Im not going to bother you again unless it's 100% important because the ammout of people that u serve is unbleavable and your time is invalueable!

I could never thank you enough for the knowledge you provided me,if allowed i will find a way to send a dontation for the money u saved me!


sincerely,
bman4

[tw2005]

Re: Panasonic tc-p50s30 su,sc,ss repair help

I found a orginal su,ill just add some heatsinks myself.
Shouldent it power up without sc50 jumped since the buffers are now isolated?
Also read something that the pcb along the bottom could be a 8 blink culprit.
These are not my first ribbion connectors so i allways tripple check keyed points and make shure they are in as deeply evenly as posible!
Ill will also try cleaning and reseating each ribbion connector's.

Thank you
bman4

I'll simplify this for you. You don't have an 8 blink or any blink issue other than the original fault which has been proven to be the buffers. the whole point of me asking you you hook it all up minus the buffers with sc50 jumpered and then have it stay on with no error blink dictates this.

I think you need to do some reading on how these pansonics work. Any disconnection of buffers from the SC will cause a shutdown as it open ccts the CHA line. SC50 jumpered completes that cct therefor when testing or trying to isolate a 7 blinker if it goes away the only thing it can then be are the buffers and if it remains the SC is bad plus the buffers also can be bad.

Disconnection of the SC20 ribbon will trigger 8 blink it's all in the training guides.

[bman4]

Re: Panasonic tc-p50s30 su,sc,ss repair help

I found a orginal su,ill just add some heatsinks myself.
Shouldent it power up without sc50 jumped since the buffers are now isolated?
Also read something that the pcb along the bottom could be a 8 blink culprit.
These are not my first ribbion connectors so i allways tripple check keyed points and make shure they are in as deeply evenly as posible!
Ill will also try cleaning and reseating each ribbion connector's.

Thank you
bman4

[tw2005]

Re: Panasonic tc-p50s30 su,sc,ss repair help

check these. the ST30 looks the same as the gt30 minus heatsinks. Yours has the cap, the others do not so swap that cap and I believe that will make it the same plus you'll have heatsinks

[tw2005]

Re: Panasonic tc-p50s30 su,sc,ss repair help

Can i mix a 50gt30 upper buffer with a 50s30 lower buffer?

Is there a list of substitutes buffers anywhere?

https://www.badcaps.net/forum/showth...ight=tc-p50s30

I'm pretty sure I've looked at pictures of these before but the SU from memory gt should have heatsinks and between the 2 the other difference I spooted was one had an additional ceramic cap in cct which is most likely to do with matching the board to the panel as the GT would have a different panel version

so depending which has what for example if yours has it and the gt does not then take the cap off yours and solder it in the same location on the gt and if th gt has it and yours does not then just remove it or just leave it and probably won't tell the difference.

[bman4]

Re: Panasonic tc-p50s30 su,sc,ss repair help

Can i mix a 50gt30 upper buffer with a 50s30 lower buffer?

Is there a list of substitutes buffers anywhere?

[bman4]

Re: Panasonic tc-p50s30 su,sc,ss repair help

The green light is on the ss tho i guess ill have to wait to see what happens.

[bman4]

Re: Panasonic tc-p50s30 su,sc,ss repair help

Im pretty dam shure,im really good a ribbon cables.

This error occured after i only did the unplug sc ribbion and ribbion rigth below.

The set did fire with sold light then the next time it wouldent and i discovered 8 blink code witch led me to ss.

Then i just tried unplugign the ss ribbion cable and got solid light again.

[tom66]

Re: Panasonic tc-p50s30 su,sc,ss repair help

8 blinks is unusual, usually refers to SS board more than anything. Did you make sure to secure the link between SN/SC and SS boards?

[bman4]

Re: Panasonic tc-p50s30 su,sc,ss repair help

Understood!

Just got home,i fired it up and it did quiet down for a second,weird.

Im just going to order the screw's and the buffer ic.

I did read the whole buffer ic replacment thread and someone mentioned a silicone disolvent,ill look for one that's safe and effictive.

I look around for some more guides on how to remove the ic properly.

Now im getting a 8 blink error code without sc50 jumped when i orginally had 7 can't 100% confrim.

Dose this error refer to bad buffer, when i looked it up i came to a conclusion that it is failed ss, possibly because the ss goes to the panel just like the buffers.

[tw2005]

Re: Panasonic tc-p50s30 su,sc,ss repair help

Do u think i should just replace all upper smd diodes and fets just for the hell of it.
Im thinking that the upper buffer failure caused this because it's only in the upper portion and maybee the component is on it way out.

I have a stethoscope and could try to narrow it down!

no not really. get the TV running first it may quieten down once it's all back and running

[bman4]

Re: Panasonic tc-p50s30 su,sc,ss repair help

Do u think i should just replace all upper smd diodes and fets just for the hell of it.
Im thinking that the upper buffer failure caused this because it's only in the upper portion and maybee the component is on it way out.

I have a stethoscope and could try to narrow it down!

[bman4]

Re: Panasonic tc-p50s30 su,sc,ss repair help

Thank you for your help tw2005.
Have a wonderful day!

sincerely,
bman4

[tw2005]

Re: Panasonic tc-p50s30 su,sc,ss repair help

Okay the tv came on with a green light but the sc made a weird buzzing noise,i did torque the screw pretty good, no smoke so that a plus!.

yeah they can, could be loose or maybe because no load , either way the rest of the tV should be fine, just work out if just SU is bad or both sd/su but very recently there was a 50s30 bad Su , sc good.

I'd only check these with a meter, don't try running with just one board just in case something gets damaged, not worth the risk, hard enough to get parts these days with panasonic getting out of plasma Tv

I have to go, have a read , I find those trainers really interesting