Powers up I guess, red led stays solid red, unit doesn't do anything, have to unplug to power down.
Pansasonic P50S30 Solid Red LED - Repost
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Re: Pansasonic P50S30 Solid Red LED - Repost
I would have just kept this all together as it's in progress. Locked solid may very well be shorted Vsus / SC board. Check Sc2 for short cct or disconnect Sc2 / Sc20 and try turn on again and see if it attempts to start up then sos blinks. -
Re: Pansasonic P50S30 Solid Red LED - Repost
This is out of the ST30 guide, but quick summary of SOS changes for the 2011 models
Shutdown but No Blink code - Power LED stays on (Check for Shorted Vsus* / Vda** / P15V
Blink chart:
NO BLINLK SOLID RED,
LSI Error,
Shorted Vsus Shorted Vda Shorted P15V
In order of probability.
SC - SS, P, A, Panel
Red Solid LED (No Blink): LSI error. This condition is triggered when the power supply SOS-detect-signal is triggered during the startup process.Attached FilesComment
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Re: Pansasonic P50S30 Solid Red LED - Repost
More likely SC or SS board has a short on the Vsus line......TELEFIX
How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
http://www.irf.com/technical-info/appnotes/an-1088.pdf
PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!Comment
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Re: Pansasonic P50S30 Solid Red LED - Repost
I disconnect the SC2/P2, SC20/A20, SS11/P11 as instructed and I get 8 flashes. I reconnect everything and disconnect the SC2/P2 and get 7 flashes, if I disconnect the SS11/P11 I get a solid red LED
That's supposed to be telling me something, SC Board ?Comment
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Re: Pansasonic P50S30 Solid Red LED - Repost
Have you checked the Vs line on both the SS and SC boards to deck for a short...?TELEFIX
How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
http://www.irf.com/technical-info/appnotes/an-1088.pdf
PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!Comment
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Re: Pansasonic P50S30 Solid Red LED - Repost
Actually, when disconnecting the 3 cables as described, I get 8 flashes, indicating an A-Board or Vsus - P15 short. When I disconnect the individual cables, I get the 7 Blink on the SC, solid on the SS
Thus indicating an A-Board fault?Comment
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Re: Pansasonic P50S30 Solid Red LED - Repost
8 blinks should be SS, you sure it's A board?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Pansasonic P50S30 Solid Red LED - Repost
Well--IF you're randomly unplugging stuff, and not confirming whether there's any SHORTS anywhere with a Multi-meter.......
All you are gonna do is confuse the matter looking for errors that dont exist--as you're making errors by disconnecting stuff!!TELEFIX
How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
http://www.irf.com/technical-info/appnotes/an-1088.pdf
PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!Comment
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Re: Pansasonic P50S30 Solid Red LED - Repost
I'm off to get my multi meter in my work van . . . .
I was just responding to the service manual Page 61 for Solid Red Failure indicating that after the 3 cables are disconnected, it is blinking 8 times. A-Board, Vsus or P15V correct?Comment
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Re: Pansasonic P50S30 Solid Red LED - Repost
The fact you go from solid led (locked mode) or SOS4 on start-up to 8 or whatever after you disconnect the Sc confirms you have Shorted SC board.
In the 2010 models, a dead short on Vsus produced SOS4 at start-up but with these they've changed that to what you are seeing now
Initially you said it was constantly restarting and I did suggest checking SC for short because that appears to be the most common fault with the 2011 range.
Now that you have revised that with locked solid LED, I think everyone here is on the same page and expected shorted Vsus somewhere.
8 blinks is correct for Sc20 removed, it's all in the guide. Either way when you start probing it's going to be on the panel boards and not A or PSu that's my gut feeling on this.Last edited by tw2005; 10-02-2014, 02:59 PM.Comment
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