TV Panasonic TH-50PZ85U 2 blinks

[Mishannya]

Re: TV Panasonic TH-50PZ85U 2 blinks

OK. Thanks.

[Mishannya]

Re: TV Panasonic TH-50PZ85U 2 blinks

Possible service manual at

http://elektrotanya.com/

PS. How is the 28 inch Hanns-G running? It has turned into a megathread now.

The 28 inch Hanns-G running good, as far as I know. Thanks.

[wane80]

Re: TV Panasonic TH-50PZ85U 2 blinks

I have this same problem and was wondering if the OP had an update as to whether this fixed his problem.

[DavidOH]

Re: TV Panasonic TH-50PZ85U 2 blinks

You can replace the caps on the MC201 ane MC301 with a surface mount cap.

Can't post a link yet. But if you go to AVSforum/Plasma Flat Panel Display. Then the (Master thread for Panasonic plasma not turning on). Start at the end of the thread and work backward. I made the 10 blink fix on a 50pz80u.

[DavidOH]

Re: TV Panasonic TH-50PZ85U 2 blinks

I figured it out.

http://www.avsforum.com/avs-vb/showt...001318&page=46

[insectintellect]

Re: TV Panasonic TH-50PZ85U 2 blinks

Hey folks. I'm new here and pretty new to electronic tinkering. Please excuse my rookie status and forthcoming ignorant questions.
That said, I picked up a Panasonic TH 46PZ85U with the 2 red blink as described. I've removed the back, tested voltage first at P7 1 to determine a faulty P board, then tested resistance on mc 201 and 301. 301 seems faulty so I plan to order and replace both 201 and 301 just to make sure my bases are covered.
Here's the problem: I've never done this before and I want to make sure I do it right. Where can I find a step by step tutorial for desoldering the bad caps and rsoldering on the new ones?
Thanks for some guidance.
JB

[retiredcaps]

Re: TV Panasonic TH-50PZ85U 2 blinks

Where can I find a step by step tutorial for desoldering the bad caps and rsoldering on the new ones?

In the FAQ.

https://www.badcaps.net/forum/showthread.php?t=485

[tm_two]

Re: TV Panasonic TH-50PZ85U 2 blinks

More pictures of MC201 and MC301 added.

Hi, can anybody tell me the value of the resistor between pin 13 and 14 of TEA1611??

Need this very quick. Thanks alot.

[dietzcj]

Re: TV Panasonic TH-50PZ85U 2 blinks

I did this fix when I had the 10 blink issue, and it did work, but I am still not getting any video and the power light is solid.
I can see the backlights turning on and it appears the TV IS on. But yet still no video display. I have also replaced the D-Board and I get the same thing.

Any other thoughts ?

[Elisra]

Re: TV Panasonic TH-50PZ85U 2 blinks

Finally, what capacity are the caps mc201 and mc301?

[Elisra]

Re: TV Panasonic TH-50PZ85U 2 blinks

hi, can you help me with that issue? 0.01uf or 1.0uf?...Thanks

[tom66]

Re: TV Panasonic TH-50PZ85U 2 blinks

They are 10uF but it is unlikely to be very critical.

[Sevenqi]

Re: TV Panasonic TH-50PZ85U 2 blinks

Please see this post:
https://www.badcaps.net/forum/showth...nic+th-50pz85u

[Tony50230]

Re: TV Panasonic TH-50PZ85U 2 blinks

Hello everyone,

In a tough spot I have a TH-42Px75u panasonic display. I have the 2 blink issue. Where tv is in stand by, I turn it on and the led turn green as if it powers on and stays blank. Blank meaning no black light or power. Then a few seconds later it turns off and blinks twice.

What I have done. I've replaced the power supply to no avail still does the same thing. Now after reading a lot of post I read that the d board could be the issue.

On a side note. I tried testing out the d board to see if it could be the issue. Here's what happened. I disconnect the connection leading out of the d board and leave the power supply hooked up. When I go to start the tv it power on an stays on but picture or back light of any sorts. If I disconnect the power from the d board and try to power tv on it won't power on at all not even a stand by red led.

Any help? Not to knowledgeable but can replace a part or solder in a part. Help!!! Thanks hope to get a reply.

[kinkose]

Re: TV Panasonic TH-50PZ85U 2 blinks

Okay, so I'm apparently a klutz... Can someone give me a solution to my problem. I accidentally desoldered and lost the highlighted capacitor in the picture. What can I do if there is no hope for finding it? Can I buy a new one? or a new MC301 board?

I would be forever grateful for a response...

[tom66]

Re: TV Panasonic TH-50PZ85U 2 blinks

Not a capacitor. It's a resistor. Your only hope is someone with an MC201/301 board that someone can use to check the value of that resistor.

Otherwise, you will have to replace entire power supply board.

[kinkose]

Re: TV Panasonic TH-50PZ85U 2 blinks

I also found this website if this is any help. http://industrial.panasonic.com/ww/i...r_e/index.html

[kinkose]

Re: TV Panasonic TH-50PZ85U 2 blinks

Oh. Well, lovely. Crap...

Thanks anyways, tom66.

[kinkose]

Re: TV Panasonic TH-50PZ85U 2 blinks

I did find this! But, it's probably not any help without knowing what I need replaced... http://industrial.panasonic.com/www-...OA0000_WW.html

[withalligators]

Re: TV Panasonic TH-50PZ85U 2 blinks

I have Vizio VP504 with this PSU. It doesn't throw a blink code. When you plug it in, the amber VIZIO led lights up (it may dim somewhat after lighting up) and that's it. No reaction to button presses or anything. I've read on AVS that this vizio was fixed by swapping the cap (do I really need to swap the IC too?) on the MC301 and MC201 board.
I'm going to order up the stuff and do it to see.

Kinkose, did you ever find out what you needed to about that resistor? Is that something I can do for you with a regular DMM? Let me know. Thanks