Panasonic Plasma TC P50 XI Blinks once

[jjzepplin]

Hey there. I am a newbie here but need your help. My Viera Plasma Won't turn on and Blinks the LED on front just once.
If I disconnect the SC board it blinks 7 times.
Seems to blink the one time with about 3-4 seconds between the next.
It's a 2009 model and I cannot afford a new one.
I have fixed the capacitors in my Samsung.
Bu this one has me stumped. Please help?

[martino]

Re: Panasonic Plasma TC P50 XI Blinks once

Can we get pictures from the back side of the TV? clear pics of the boards etc...
1 blink I believe is mainboard,but there is some tests we can do to troubleshoot..tw2005 is our panasonic expert.
7blinks is correct when unplugging SC board...
We will wait for the pics

[tw2005]

Re: Panasonic Plasma TC P50 XI Blinks once

So i guess the model is TC-P50X1. 1 blink is traditionally A-board, something I found is that the 1 blink is probably the last to trigger in the startup sequence.

So disconnecting a SC board would trigger a different code before it reaches the panel startup.

1 blink can be something as simple as corrupted data on an eeprom or flash IC.

You could try this and confirm it's the A board for sure, disconnect, SC2, SS11, P35 and 3 white ribbons at the A board and turn the TV on. If it still goes SOs then it's definitely A-board.

I expect it to be.

Then you'll have to source a new board or maybe get yours repaired.

You would have to check what revision. 50C1 boards would also work but you'll lose some features depending on your version like VGA out or not sure if it's HDMI or USB port on the side panel.

http://www.moduslinkptstvboards.com/...red=&shipping=

[martino]

Re: Panasonic Plasma TC P50 XI Blinks once

wow,tw2005,you jumped in even faster then I was hoping you would
Was just looking for what to disconnect but stumbled on the XI instead of X1

[jjzepplin]

Re: Panasonic Plasma TC P50 XI Blinks once

I may sound like I know a bit about these but I only know what I have read in this download.
Identifying the boards may be a challenge for me as well as disconnecting them. SC2-SS11-P35-What does it mean? I see SC-SS-P but no #s.
Other forum email me when I get a response on my thread.
Is there a way for Badcaps to do that too as I would have answered faster but had no emails.

[tom66]

Re: Panasonic Plasma TC P50 XI Blinks once

Subscribe to thread: Select "Thread Tools" at top, then "Subscribe"; you can set up an email reminder there.

To add photos, scroll down below the main Reply to Thread page (not Quick Reply) and select Manage Attachments. Photos up to 2MB can be uploaded there.

[tw2005]

Re: Panasonic Plasma TC P50 XI Blinks once

I may sound like I know a bit about these but I only know what I have read in this download.
Identifying the boards may be a challenge for me as well as disconnecting them. SC2-SS11-P35-What does it mean? I see SC-SS-P but no #s.
Other forum email me when I get a response on my thread.
Is there a way for Badcaps to do that too as I would have answered faster but had no emails.

Well, you know the SC board, you have the manual which has the layout.

From the rear,SC/SD/SU 3 boards on the left, center large board is P board, SS is on the right and about half the size of the Sc, A board usually bottom right where all the inputs are.

SC2, SS11, p35 are connectors on the SC,SS and P boards.

You have the PDF, use the find feature in Adobe to find those within the document. there will be several hits but it will show them on the PCB.

Don't reconnect any of the power leads straight away after a power cycle or you can spike boards or worse, the panel (P35). 5 mins should be plenty or use a meter to check volatages present first.

[jjzepplin]

Re: Panasonic Plasma TC P50 XI Blinks once

10-4 will check tonight and get back when I get off work. One more thing, not sure if it matters but I do see a small led on the sc board that goes on for a few seconds then I hear a relay and it slowly goes out.

[jjzepplin]

Re: Panasonic Plasma TC P50 XI Blinks once

Subscribe to thread: Select "Thread Tools" at top, then "Subscribe"; you can set up an email reminder there.

To add photos, scroll down below the main Reply to Thread page (not Quick Reply) and select Manage Attachments. Photos up to 2MB can be uploaded there.

Thank you. Do you have to do that with each thread?

[tw2005]

Re: Panasonic Plasma TC P50 XI Blinks once

10-4 will check tonight and get back when I get off work. One more thing, not sure if it matters but I do see a small led on the sc board that goes on for a few seconds then I hear a relay and it slowly goes out.

When the SC board gets power the LED lights. When the TV is running it's lit all the time.

[tom66]

Re: Panasonic Plasma TC P50 XI Blinks once

Thank you. Do you have to do that with each thread?

There may be an option for turning it on automatically. Any post in this thread will email you. I would not turn it on automatically because then your email inbox would flood with posts from threads that you may have only briefly posted in and you do not have any interest in anymore.

[jjzepplin]

Re: Panasonic Plasma TC P50 XI Blinks once

Well, you know the SC board, you have the manual which has the layout.

From the rear,SC/SD/SU 3 boards on the left, center large board is P board, SS is on the right and about half the size of the Sc, A board usually bottom right where all the inputs are.

SC2, SS11, p35 are connectors on the SC,SS and P boards.

You have the PDF, use the find feature in Adobe to find those within the document. there will be several hits but it will show them on the PCB.

Don't reconnect any of the power leads straight away after a power cycle or you can spike boards or worse, the panel (P35). 5 mins should be plenty or use a meter to check volatages present first.

Ok, I disconnected the 3 ribbons-the connector to the SC board from the P board -and connections to the SS board. I also removed the 3 connectors with lots of brown wires going to them from the A board. The only connector left is the power in to the P board. Is this correct?

[jjzepplin]

Re: Panasonic Plasma TC P50 XI Blinks once

Also I tried to subscribe to this thread but I still don't emails when someone posts on it....

[tw2005]

Re: Panasonic Plasma TC P50 XI Blinks once

Ok, I disconnected the 3 ribbons-the connector to the SC board from the P board -and connections to the SS board. I also removed the 3 connectors with lots of brown wires going to them from the A board. The only connector left is the power in to the P board. Is this correct?

No,

disconnect the cable from the PSU to SC2

At the A board there are 3 white ribbons, one goes to the SC board, the others go to the C1 and C2 boards, disconnect those at the A board.

At the SS board, disconnect the SS11 cable from the PSU

At the PSU, disconnect P35.

Turn the TV on, if it's a genuine 1 blink then it will still go 1 blink as only the PSU and A board are running.

probably a waste of time as 1 blink rerely ends up being something else but that's how I do it.

let it sit after this test, do not reconnect straight away.

[jjzepplin]

Re: Panasonic Plasma TC P50 XI Blinks once

Ok. Did that and left the three little brown wired cables connected. One blink continues. So must be the A board? Darn things are expensive. Best I could find was a repair service for $130 with a 1 year warranty. Any better deals out there? Could this be fixed and the problem still exist?

[tw2005]

Re: Panasonic Plasma TC P50 XI Blinks once

Ok. Did that and left the three little brown wired cables connected. One blink continues. So must be the A board? Darn things are expensive. Best I could find was a repair service for $130 with a 1 year warranty. Any better deals out there? Could this be fixed and the problem still exist?

As far as I know Modus will test the board, since you've proven the board is 1 blinking then it would be hard to expect they'd send it back still 1 blink.

Only way to get cheaper would be to hang out for one to surface on Ebay. You may be waiting forever though.


A 50C1 board will run the TV but it will have some features missing.

One on Ebay for $75 but check with any seller the revision of it as each rev can be for a different size.

If you want it how it was you'll have to accept the cost or hope for some luck in finding the correct board.

Post a picture of your board or jump on to shopjimmy and search MC127H27U12 as that is the panel used in both the C1 and X1.

[jjzepplin]

Re: Panasonic Plasma TC P50 XI Blinks once

What features would be missing? I see one on shopjimmy TNPH0800AD for $99-would that one work?

[tw2005]

Re: Panasonic Plasma TC P50 XI Blinks once

What features would be missing? I see one on shopjimmy TNPH0800AD for $99-would that one work?

need either a picture of yours or the exact revision of it, they list 2 for the X1. Already mentioned possibly differences in earlier post.

Possibly cheaper one on ebay, also posted, for the $30 extra you get the right one, (yours repaired)

[jjzepplin]

Re: Panasonic Plasma TC P50 XI Blinks once

Just thinking - If this is not the issue I could return the board to shopjimmy and pay the restocking fee and only be out a few bucks. If I have my board repaired then I own it working tv or not...

[tw2005]

Re: Panasonic Plasma TC P50 XI Blinks once

Just thinking - If this is not the issue I could return the board to shopjimmy and pay the restocking fee and only be out a few bucks. If I have my board repaired then I own it working tv or not...

I thought their restock was 20%, $20 + return shipping

"you will be charged a 20% restocking fee for any new/unused product (up to $25)"

Just saw if you spend $100 or more, 15% off in August, sucks how this just misses out, maybe worth negotiating.