Panasonic TH-50PHD6 - 6 blink error - AVS Forum
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post #1 of 12 Old 04-03-2013, 08:01 AM - Thread Starter
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Hello All-

Getting a shut down and 6 red blink error on my Panasonic TH-50PHD6. I can power off, then back on then get solid green light but no picture. I searched here and on Google, but not finding much help, except that it might be fan related. Trying to determine if there's anything I can do. Any suggestions or related links will be appreciated. Thanks!

Rob

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post #2 of 12 Old 04-03-2013, 02:03 PM - Thread Starter
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Powered it off last night and let it rest. Working fine today when we last powered it up. From the little bit I was able to learn about the 6 blink error for this display, it's fan related. I'm guessing it may be a dirty fan sensor, or something like that.

Can't seem to find a service manual for free. Anyone have one? This display is nearly 9 years old, but still renders really good picture quality.

Any suggestions will be appreciated!

Rob

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post #3 of 12 Old 04-08-2013, 08:19 AM - Thread Starter
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Oh, my....not much interest in issues with these older displays! smile.gif

UPDATE & POSSIBLE RESOLUTION:

The next day after the above post, we again had a shut down and the 6 blink error. So, the next day I vacuumed all the accessible vents on the back with a pretty powerful vacuum. I also covered a heat vent that was directing warm air up behind the display. Haven't had any problems since!

Rob
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post #4 of 12 Old 04-08-2013, 04:25 PM
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6 blink has nothing to do with the fans and everything to do with the SC, SD or SU boards, possibly P board if VSUS is dropping out. Dust build up on boards could be an issue, but it would be one of the last places I would look.
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post #5 of 12 Old 04-09-2013, 08:07 PM - Thread Starter
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Thanks tom669-

Unfortunately the problem is back as of tonight. Anyone know a good repair shop in Raleigh, NC?

Rob
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post #6 of 12 Old 04-10-2013, 02:36 AM
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If you have no luck finding a shop, or can't afford to, there is a good chance you can fix this yourself for under $100.
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post #7 of 12 Old 04-10-2013, 08:43 AM - Thread Starter
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Quote:
Originally Posted by tom669 View Post

If you have no luck finding a shop, or can't afford to, there is a good chance you can fix this yourself for under $100.
Really- I wouldn't have any idea where to start!

Rob
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post #8 of 12 Old 04-10-2013, 11:38 AM
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I do, I've repaired a few Panasonics, though no where near as many as Samsung. First step is to take the back cover off and take pictures. You will need a digital multimeter, which can be purchased for less than $10.
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post #9 of 12 Old 04-13-2013, 08:00 AM - Thread Starter
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Quote:
Originally Posted by tom669 View Post

6 blink has nothing to do with the fans and everything to do with the SC, SD or SU boards, possibly P board if VSUS is dropping out. Dust build up on boards could be an issue, but it would be one of the last places I would look.
Well, it appears that you are wrong. I had a technician look at it on Thursday. He determined that all the boards were OK. He noted that the 2 fans, which were running, appeared somewhat stiff. He removed and cleaned both fans. We put her back together and ran her for 6 straight hours with no shut down (previously it would power off after 60 - 90 minutes), and haven't had any problem since then.

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post #10 of 12 Old 04-14-2013, 03:33 AM
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I'm quite surprised. There is a chance the thermal sensor on the P board was tripping, though. Normally Panasonic has 13 blink for fan error.
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post #11 of 12 Old 04-15-2013, 12:38 PM
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Quote:
Originally Posted by tom669 View Post

6 blink has nothing to do with the fans and everything to do with the SC, SD or SU boards, possibly P board if VSUS is dropping out. Dust build up on boards could be an issue, but it would be one of the last places I would look.

Although I could not find an exact technical guide to the OP's 6th generation set, there exists a 5th generation guide and a 7th generation guide that use 6-blinks as a FAN SOS.

From page 40 in the 5th generation guide:
Quote:
Power LED Flashing timing chart

Six - Fan circuit / Fan stop
Check pin 3 of P10 to P13 connectors.

From page 86 and 93 in the 7th generation guide:
Quote:
Power LED blinking timing chart

6 Fan SOS -

Fan SOS Detect
The two ventilation fans are monitored to be sure that they are operating properly. If one of the fans opens or increases resistance, the resulting current change is applied to pin 89 of the Microprocessor IC9003.


That which may be known of God is evident within man, for God has shown it to them, so that they are without excuse. (Romans 1:19-20)
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post #12 of 12 Old 04-16-2013, 02:51 PM
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Thank you for pointing this out. Panasonic clearly changed the error codes. I had always assumed 6 was SC/SU/SD. But then again the earliest I have done is 11th gen, so quite a bit newer.
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