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wrzl replied to Panasonic TC-P60ST30 - 7 blinks, then 8

in Troubleshooting TVs and Video Sources

05-07-2018, 10:00 PM
Re: Panasonic TC-P60ST30 - 7 blinks, then 8

Alright... to continue this saga, I never found a FET or IC that tested bad but the diagnostic flow charts seemed to indicate my SC and SD board were bad. I got an SC and SD board off of eBay that were pulls from a supposedly working Plasma of my same model. I put these boards in and I now have a picture! No more 7 blinks... BUT - check out the attached pictures I've got a thin horizontal line of black on the bottom and a thick vertical line of black with some weird color in it. What's going on here?

Thanks for all...

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Last edited by wrzl; 05-07-2018, 10:28 PM.
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wrzl replied to Panasonic TC-P60ST30 - 7 blinks, then 8

in Troubleshooting TVs and Video Sources

04-25-2018, 09:43 PM
Re: Panasonic TC-P60ST30 - 7 blinks, then 8

Yes, still 7 blinks

The screws were replaced under warranty shortly after I purchased the TV as I was getting a buzzing from that side.

I tested all the DG301s (marked Q4XX) and all the 30F131s (marked Q6XX) and they were not shorted. I also found 3 RJP30K3s on the heatsinks and those test fine too. However, the 2 RF1501s that I found did read short on the outer legs - but those are diodes (D401 and D402), right? You said those should be tested differently?...

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wrzl replied to Panasonic TC-P60ST30 - 7 blinks, then 8

in Troubleshooting TVs and Video Sources

04-24-2018, 07:36 PM
Re: Panasonic TC-P60ST30 - 7 blinks, then 8

OK, I've attached the images. I couldn't get the whole TV in the frame, so I took pictures of each area.

Thanks!...

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Last edited by wrzl; 04-24-2018, 07:45 PM.
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wrzl replied to Panasonic TC-P60ST30 - 7 blinks, then 8

in Troubleshooting TVs and Video Sources

04-24-2018, 08:56 AM
Re: Panasonic TC-P60ST30 - 7 blinks, then 8

The 4 VFG floating ground screws on the SU/SD boards. Looks like there is contact at those points with the SC board. So, those 4 screws removed and note cards slid between the boards at those points to insulate....

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wrzl replied to Panasonic TC-P60ST30 - 7 blinks, then 8

in Troubleshooting TVs and Video Sources

04-23-2018, 10:08 PM
Re: Panasonic TC-P60ST30 - 7 blinks, then 8

I didn't find anything labeled Q401, etc. But I did see and test DG301 and they were fine.

I did the test where SC50 is shorted and the ground screws are removed and the boards were separated with some note cards and I got 7 blinks again.

I then followed the SU/SD/SC Short Circuit/Low Resistance Test flowchart and saw low resistance (about 150 Ohms) when testing IC724 with SC41/SU41 disconnected. With both SC41/SU41 and SC42/SD42 disconnected I saw no short and infinite resistance. I then connected...

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Last edited by wrzl; 04-23-2018, 10:10 PM.
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wrzl replied to Panasonic TC-P60ST30 - 7 blinks, then 8

in Troubleshooting TVs and Video Sources

04-20-2018, 09:33 AM
Re: Panasonic TC-P60ST30 - 7 blinks, then 8

Thanks to everyone for your responses. I went through the 7 Blinks flowchart in the PDF and, if I'm reading this correctly, it is now saying that my A board is faulty.

Following the flowchart on slide 70, here is what I did: I disconnected SC20 and C20 and powered on the TV. The flow chart asks, "Does the TV stay on with a black screen?". Mine did not - it started up, turned off and went back to 7 blinks, so I followed the "No" side. The flowchart then has me unplug the TV, reconnect SC20 and C20 and...

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wrzl replied to Panasonic TC-P60ST30 - 7 blinks, then 8

in Troubleshooting TVs and Video Sources

04-19-2018, 05:16 PM
Re: Panasonic TC-P60ST30 - 7 blinks, then 8

Very helpful - thank you!...

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wrzl replied to Panasonic TC-P60ST30 - 7 blinks, then 8

in Troubleshooting TVs and Video Sources

04-18-2018, 11:58 AM
Re: Panasonic TC-P60ST30 - 7 blinks, then 8

Yes, I checked both - no shorts. Does that point to the SU/SD boards?...

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wrzl replied to Panasonic TC-P60ST30 - 7 blinks, then 8

in Troubleshooting TVs and Video Sources

04-17-2018, 10:12 PM
Re: Panasonic TC-P60ST30 - 7 blinks, then 8

Finally got to spend some quality time with the TV and the multimeter - I could find no shorts in the FETs.

Now what?...

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wrzl replied to Panasonic TC-P60ST30 - 7 blinks, then 8

in Troubleshooting TVs and Video Sources

04-01-2018, 08:26 AM
Re: Panasonic TC-P60ST30 - 7 blinks, then 8

OK, [URL="https://ww2-secure.justanswer.com/uploads/TV/TVTech1/2013-10-30_100246_untitled_-_1.jpg"]this[/URL] tells me that I disconnected SC2 and SC20. With those unplugged my 7 blinks went to 8.

So I should be looking at the SS board now, too? Ugh...Re: Panasonic TC-P60ST30 - 7 blinks, then 8

OK, [URL="https://ww2-secure.justanswer.com/uploads/TV/TVTech1/2013-10-30_100246_untitled_-_1.jpg"]this[/URL] tells me that I disconnected SC2 and SC20. With those...

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wrzl replied to Panasonic TC-P60ST30 - 7 blinks, then 8

in Troubleshooting TVs and Video Sources

03-31-2018, 10:20 PM
Re: Panasonic TC-P60ST30 - 7 blinks, then 8

Thanks for the reply!

It is certainly possible I've mixed something up - where can I find a schematic?...

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wrzl started a topic Panasonic TC-P60ST30 - 7 blinks, then 8

in Troubleshooting TVs and Video Sources

03-29-2018, 09:35 PM
Panasonic TC-P60ST30 - 7 blinks, then 8

Hey all:

I have a Panny Plasma P60ST30 that died with the 7 blinks-o-death. I opened it up and removed the power and ribbon cables from the SC board (Part #5399AB). When I powered it up again I got 8 blinks. What is this telling me? I've seen posts and videos about 7 blinks going to 6 when the SC board is disconnected, but what does 8 mean?

Thanks for any assistance!

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wrzl replied to New Members - please post your introductions here

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03-29-2018, 08:49 PM
Re: New Members - please post your introductions here

Greetings! Found this forum while trying to diagnose issues with my Panny Plasma TV - looks like a great community!

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Panasonic TC-P60ST30 - 7 blinks, then 8

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