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Panasonic Blinking Power light of Death

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Old 08-18-2008, 03:46 PM   #16
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Cool DVI to HDMI Cables

Hi all, now im sure its the dvi to HDMI cable that came with the PVR unit. As i said earlier, the DVI cables do not allow the 5 volt signal from HDMI to be passed through the DVI connection.

This info comes from the service manuals...but dont quote me on that:

10 blinks Sub 5v SOS / Main 3v SOS DG Board
DTV 9v SOS / Tuner Power SOS

After seeing this, i realized that it would not get the 5 Volts from the PVR because of the DVI passtrough issue.

For some strange reason this does not happen on the front HDMI 3 port. After some thinking, i remembered seeing this port labeled as GAME PORT. Most gaming units would not supply the 5 Volts needed, and thus they must have set it up to eat more of the 5 Volt line from the Panasonics power supply.

Basically they are using the 5 Volts supplied by your HDMI capable devices you hook up on the rear ports, which is why they recomend the booster. m going to try a direct cable connection to see if this works. If it does, then problem solved.

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Old 08-18-2008, 04:38 PM   #17
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This from panasonics engineers.

'The HDMI1 & HDMI2 inputs (at the rear) unlike the HDMI3 input do not have the equalizer/buffer circuit between the HDMI input and the HDMI receiver. They are dedicated HDMI ports for Audio/Video components (Blu-ray, Satellite boxes, Cable boxes, PVR). Without the equalizer/buffer circuit, the tv will not display picture and/or sound.

'If the PC cable is sending the 3.3v typical of pc connections, the tv may shut down and go into this 10 blinking pattern. For now, only HDMI 3 is recommended for PC connections, which does have the equalizer/buffer circuit.'

"This is the information I have received. I hope it helps in answering your questions."


equalizer/buffer circuit??????

Buffer usually implies amplifier.

My problem is not using a PC Graphics card, but rather a PVR with a HDMI to DVI to HDMI cable, effectively killing the 5 Volts supply through the HDMI cable to the rear of the TV.

Any thoughts?
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Old 09-08-2008, 04:37 PM   #18
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TARRANT1701-
THANK YOU!!! While I am not pleased with the issue of 10 blinking lights, no power and therefor no picture......I am grateful to watch the football games tonight because of you. Turned off the PC connected to HDMI 2 and TV came back to life. My problem is that I only have 2 back and 1 side HDMI ports. I read where the side port (3) doesn't work with PC source? IF that is the case I already know port 2 doesn't work (10 blinks).
Either way, I will be contacting Panasonic cause my wife was here just now when it happened and the PC is only 2 days old. I think she was just to afraid to say "I told you so" about me spending the money on ANOTHER TV....by the way, it is the 46" 85U. I do love the picture...just real afraid of this issue right now. But, THANKS again to all with this forum for all the great info. Will be sure to let you know what Panasonic says about this.
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Old 09-08-2008, 04:43 PM   #19
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WICKEDT - your info is most helpful. My question is....is Panasonic doing anything about it? Or are they just telling you to use Port 3 and that is the end of it? Thanks again for your info. I have the same 10 blinking lights issues.
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Old 09-10-2008, 08:00 PM   #20
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Quote:
Originally Posted by bballbm View Post
TARRANT1701-
THANK YOU!!! While I am not pleased with the issue of 10 blinking lights, no power and therefor no picture......I am grateful to watch the football games tonight because of you. Turned off the PC connected to HDMI 2 and TV came back to life. My problem is that I only have 2 back and 1 side HDMI ports. I read where the side port (3) doesn't work with PC source? IF that is the case I already know port 2 doesn't work (10 blinks).
Either way, I will be contacting Panasonic cause my wife was here just now when it happened and the PC is only 2 days old. I think she was just to afraid to say "I told you so" about me spending the money on ANOTHER TV....by the way, it is the 46" 85U. I do love the picture...just real afraid of this issue right now. But, THANKS again to all with this forum for all the great info. Will be sure to let you know what Panasonic says about this.
The side port IS the HDMI port that works with PCs. Just use that and you should be fine.
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Old 09-19-2008, 05:11 AM   #21
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Default Panasonic TH-42PZ800U problem

Hi everyone! I decided to buy the Panasonic TH-42PZ800U because I read that it was a great tv. Well, I bought one Sunday at Circuit City, and had it carried up 3 flights of stairs, hooked it up and when I turned the power on, all I got was a red flashing light!

So we pack it up and take it back to the store for another one. We take this one back home and turn it on and it works! I watched tv with no problems for 3 days. I come home from work the next day and go to turn my tv on and the same damn thing, red flashing light and no picture.

I pack it up again and take it back to Circuit City. I told the manager that they must have received a bad shipment of these tv's. He proceeds to tell me no way! You must have broken it when you set it up! I stayed calm and told him, listen, please just refund me my money. He then tells me why don't you just try a 3rd one again. I told him no way, I'll just take a refund. So he gave me my refund, and I went across the street to Best Buy hoping they received a good shipment on this tv. So far so good, I'm praying this one will work for me.

Sorry for the long reply but I just had to vent.
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Old 09-19-2008, 06:34 AM   #22
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Quote:
Originally Posted by KathyK View Post
Hi everyone! I decided to buy the Panasonic TH-42PZ800U because I read that it was a great tv. Well, I bought one Sunday at Circuit City, and had it carried up 3 flights of stairs, hooked it up and when I turned the power on, all I got was a red flashing light!

So we pack it up and take it back to the store for another one. We take this one back home and turn it on and it works! I watched tv with no problems for 3 days. I come home from work the next day and go to turn my tv on and the same damn thing, red flashing light and no picture.

I pack it up again and take it back to Circuit City. I told the manager that they must have received a bad shipment of these tv's. He proceeds to tell me no way! You must have broken it when you set it up! I stayed calm and told him, listen, please just refund me my money. He then tells me why don't you just try a 3rd one again. I told him no way, I'll just take a refund. So he gave me my refund, and I went across the street to Best Buy hoping they received a good shipment on this tv. So far so good, I'm praying this one will work for me.

Sorry for the long reply but I just had to vent.
Glad to hear that you finally got a working unit. Enjoy.
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Old 09-19-2008, 11:32 AM   #23
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Quote:
Originally Posted by KathyK View Post
Hi everyone! I decided to buy the Panasonic TH-42PZ800U because I read that it was a great tv. Well, I bought one Sunday at Circuit City, and had it carried up 3 flights of stairs, hooked it up and when I turned the power on, all I got was a red flashing light!

So we pack it up and take it back to the store for another one. We take this one back home and turn it on and it works! I watched tv with no problems for 3 days. I come home from work the next day and go to turn my tv on and the same damn thing, red flashing light and no picture.

I pack it up again and take it back to Circuit City. I told the manager that they must have received a bad shipment of these tv's. He proceeds to tell me no way! You must have broken it when you set it up! I stayed calm and told him, listen, please just refund me my money. He then tells me why don't you just try a 3rd one again. I told him no way, I'll just take a refund. So he gave me my refund, and I went across the street to Best Buy hoping they received a good shipment on this tv. So far so good, I'm praying this one will work for me.

Sorry for the long reply but I just had to vent.
Glad you got one that works properly. Every mfg gets the occasional bad batch of products, and Panasonic is no exception. It just seems to happen much less with them from years of reading about them. You just got unlucky enough bought at a store with that bad batch. Go figure.

So enjoy your display now and if you need help or have questions just post them in the forum and I am sure someone will be able to help.
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Old 09-19-2008, 02:10 PM   #24
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Thank you both I'm still very nervous that this one will break too after a few days, so I am keeping my fingers crossed. I will keep you updated and thank you again
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Old 09-19-2008, 02:24 PM   #25
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Please do keep us informed.

Do you have the TV plugged into a surge protector by any chance? This is important with HT gear now as they become more sensitive to surges when the CE companies use cheaper components to lower costs.

If you do not have it connected to a surge protect I highly recommend that you get one.
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Old 09-19-2008, 04:17 PM   #26
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Yes I have it plugged into a good surge protector. It's day 2 and it still works, LOL The only thing that bothers me is the picture settings, I have it set to Cinema and the contrast I set to 50 but it looks so dull to me. I can't wait for the break in period to be over so I can crank it up a bit. Thanks!
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Old 10-09-2008, 03:54 PM   #27
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Originally Posted by Tarrant1701 View Post
It's been very stable. Have had no problems powering on, once I switched to HDMI port 3 on the rear. If you get a Panasonic that only has two HDMI ports in the rear, then you will have to use the port on the front to solve this problem.

It seems to be only a problem with certain PC video cards connected to the HDMI port. Others have had the same problem and found the same solution. For more discussion on this issue check out:

avsforum. com / avs-vb/showthread.php?p=13649180#post13649180

Thank you very much for this information. Same situation. I purchased the TH-50PZ800U last night and it worked fine. Today I turned on the HTPC (DVI-HDMI in Port 1) first and then tried to power up the TV with 10x Blinks of the power light. Called Panasonic and they wanted to send a tech out. I thought I would need to replace the darn thing, luckily I found this weird but working solution. I currently have my Comcast HiDef Cable box plugged into HDMI 1 and it powers up fine. Also running the HTPC in HDMI 2 works fine as well just HDMI 1 does not like my HTPC being plugged in.

Video Card : EVGA 7800GT DVI - HDMI Monster Cable

TV : Panasonic TH-50PZ800U blinking light issue


THANK YOU!
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Old 10-26-2008, 08:45 AM   #28
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Would using an S-Video cable from your PC result in the same issues? I'm having the 10 flashes on my 50PZ80U, while plugging my HDMI-DVI cable from the PC. I'm currently running and eVGA 8600GT video card.....
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Old 10-26-2008, 02:57 PM   #29
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Would using an S-Video cable from your PC result in the same issues? I'm having the 10 flashes on my 50PZ80U, while plugging my HDMI-DVI cable from the PC. I'm currently running and eVGA 8600GT video card.....
Welcome to the forum!

Try running the S-Video into the front input and check it out. If the problem is resolved, then you have your answer.

You should know that using a S-Video connection will only allow 480i output/input, so you are only getting 720x480 for a resolution. You should possibly consider upgrading your video card to a HDMI card to be able to get HD resolutions.
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SA 3250HD
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Harmony 680 + (2) 670s (amazing remote/support)
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Old 10-26-2008, 06:42 PM   #30
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Will a 7 pin S-Video to component still only allow the 480i w/ 720X480 res.? It's the adapter that comes w/ the video card.....

PS: The HDMI-DVI connection works on HDMI input 3, but I'm trying to find something that looks cleaner then having the cable run out the front of my tv....


Thanks
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