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post #91 of 995 Old 06-20-2013, 03:55 PM
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Sorry - i switched from low to high, not high to low.
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post #92 of 995 Old 06-20-2013, 04:25 PM
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Quote:
Originally Posted by tom669 View Post

It's in the service menu. VSUS HIGH or LOW.
How do I get into this service menu ?
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post #93 of 995 Old 06-20-2013, 04:30 PM
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Quote:
Originally Posted by chadwick537 View Post

Sorry - i switched from low to high, not high to low.

Ok, that makes sense now. Wondering how this affects my calibration, if at all.

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post #94 of 995 Old 06-20-2013, 05:18 PM
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So I've been playing with this in the service menu (very carefully) and it has a very obvious effect on the blobs to the left and right of the panel. I'm not sure yet if I've correctly confirmed the change from Low to High as there may be one more step. Would the term "Write" be the same as Save? Each time I go back into the service menu without doing anything other than toggling to High, it appears to be back to Low.

There is potential here, but I'm not yet sure I've made a permanent change. And of course I'd need Chad B to come back and double-check my calibration to see if this has thrown anything off. There certainly isn't anything obvious.

Update: I did have to put it in "Write" mode, then OK to make change permanent. Going to watch for blobs for a while and see what I see. If this works, may be time for another calibration!

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post #95 of 995 Old 06-23-2013, 11:21 AM
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What must i do in the service menu to change this option ?
Wich keys ?
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post #96 of 995 Old 06-23-2013, 03:18 PM
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Every time I change VSUS from low to high, the picture mode is changing from custom to vivid. How do I change VSUS specifically for custom picture mode ?
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post #97 of 995 Old 06-23-2013, 03:22 PM
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Anyone else try this,
If this "solution" forces me into vivid mode,
Then I may just have to live with this discoloration for the few times that I watch hockey
Vivid is by far the worst looking of all the possible modes out there
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post #98 of 995 Old 06-23-2013, 03:24 PM
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The service mode temporarily puts the panel into Vivid mode, but that should revert and VSUS bit will stay high once service mode is exited.
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post #99 of 995 Old 06-23-2013, 03:34 PM
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Thank you
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post #100 of 995 Old 06-23-2013, 03:41 PM
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Quote:
Originally Posted by tom669 View Post

The service mode temporarily puts the panel into Vivid mode, but that should revert and VSUS bit will stay high once service mode is exited.

By using the number 9 key, you will toggle through modes until you get to Custom. When you first get to VSUS it's on Vivid...you need to get to Custom.

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post #101 of 995 Old 06-23-2013, 03:59 PM
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Quote:
Originally Posted by tom669 View Post

The service mode temporarily puts the panel into Vivid mode, but that should revert and VSUS bit will stay high once service mode is exited.
What exactly is being changed ? Voltage? Is it safe ?

I have no existing issues just curious what the change actually does

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post #102 of 995 Old 06-23-2013, 04:00 PM
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Does this void any extended warranty?
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post #103 of 995 Old 06-23-2013, 04:10 PM
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Quote:
Originally Posted by billmich View Post

Does this void any extended warranty?

It's an available service menu adjustment and can be changed back to low. Will not void a warranty.

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post #104 of 995 Old 06-23-2013, 05:11 PM
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Quote:
Originally Posted by scirica View Post

It's an available service menu adjustment and can be changed back to low. Will not void a warranty.

Just curious, how do you know for sure that playing in the service menu "Will not void a warranty". Or are you assuming that everybody will know exactly what they changed in the service menu and be able to reset any and all changed settings back to what they were if something goes wrong.

Also, what if any are the long term effects of just changing "VSUS from low to high".

Remember there is no reset button in the service menu. And as far as I know the reset to factor setting button in the user menu will not make any changes to the service menu.

ss
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post #105 of 995 Old 06-23-2013, 06:46 PM
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Which begs the question what exactly does this VSUS DO in the first place? what are the long-term effects of switching it to high?
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post #106 of 995 Old 06-23-2013, 11:27 PM
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VSUS is the Sustain voltage.

Increasing it puts a little more energy into the panel, reducing efficiency slightly, but improving the chance of a successful gas discharge.

It only voids the warranty if they find out, which they won't, as the service menu doesn't record access.
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post #107 of 995 Old 06-24-2013, 02:59 AM
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A
Quote:
Originally Posted by tom669 View Post

VSUS is the Sustain voltage.

Increasing it puts a little more energy into the panel, reducing efficiency slightly, but improving the chance of a successful gas discharge.

It only voids the warranty if they find out, which they won't, as the service menu doesn't record access.
And the blobs are a side effect of gas not discharging ? What are some of the other effects ?

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post #108 of 995 Old 06-24-2013, 03:03 AM
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Quote:
Originally Posted by chunon View Post

A
And the blobs are a side effect of gas not discharging ? What are some of the other effects ?

Flickering or stuck dead pixels, pink/purple diffuse tint (esp. on bright images), cyan maldischarge in middle of display (esp. on full white/bright images), yellow blobs, or dim red tinted display. From most common to least common.
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post #109 of 995 Old 06-24-2013, 06:36 AM
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Quote:
Originally Posted by tom669 View Post

Flickering or stuck dead pixels, pink/purple diffuse tint (esp. on bright images), cyan maldischarge in middle of display (esp. on full white/bright images), yellow blobs, or dim red tinted display. From most common to least common.

Thank for that info Tom

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post #110 of 995 Old 06-24-2013, 06:57 AM
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Quote:
Originally Posted by sillysally View Post

Just curious, how do you know for sure that playing in the service menu "Will not void a warranty". Or are you assuming that everybody will know exactly what they changed in the service menu and be able to reset any and all changed settings back to what they were if something goes wrong.

Also, what if any are the long term effects of just changing "VSUS from low to high".

Remember there is no reset button in the service menu. And as far as I know the reset to factor setting button in the user menu will not make any changes to the service menu.

ss

SS: You are correct, I don't know for certain that this will not void the warranty, but I was assuming that one a) Did not mistakenly reset anything else in the service menu and b) that there is no tracking of consumer activity in the service menu. I shouldn't have been so bold as to make that absolute statement, and I thank Tom669 for the additional information on Sustain Voltage.

Sounds to me that the lower voltage may be a compromise between panel effectiveness and energy efficiency. Given the efforts to maintain "green" or "eco" standards this lower sustain voltage may be part of that compromise. Based on Tom's information, it sounds like a calibration re-check would be in order when changing to VSUS High.

I wonder if this will have a negative effect on panel life as well.

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post #111 of 995 Old 06-24-2013, 07:00 AM
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I've run a 195V (VSUS) Panasonic plasma on 210V. The picture quality improved considerably, because I could lower the VAD (from -140V to -120V), and subsequently lower the black level by a large amount. No lifetime problems noticed so far; the panel does run a bit brighter though.
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post #112 of 995 Old 06-24-2013, 07:24 AM
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What is VAD?
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post #113 of 995 Old 06-24-2013, 07:42 AM
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Quote:
Originally Posted by billmich View Post

What is VAD?

Not applicable to newer panels (mine was 2008) but it is the voltage used to both select the rows of the panel in the addressing portion, and also for the negative portion of the initialisation ramp, which is the main source of panel black glow. Dropping VAD decreases the probability of a successful gas discharge, so you have to increase VSUS to provide more energy to the panel and get the panel to the point where you have minimal black level and maximum discharge performance. I ended up with a few dead pixels, because I could tolerate them on a 42" screen from a 6ft distance (increasing VAD got rid of dead pixels but black level rose.)
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post #114 of 995 Old 06-24-2013, 09:42 AM
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Quote:
Originally Posted by scirica 
By using the number 9 key, you will toggle through modes until you get to Custom. When you first get to VSUS it's on Vivid...you need to get to Custom.

When I reach into VSUS sub-menu(by key 1or 2), key 9 is not available (only 1,2 and 5) and based on background image - panel is clearly switching to VIVID mode.
Is this VSUS value shared between all picture modes(custom, vivid, standard) ?
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post #115 of 995 Old 06-24-2013, 10:01 AM
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Quote:
Originally Posted by avsDD View Post

When I reach into VSUS sub-menu(by key 1or 2), key 9 is not available (only 1,2 and 5) and based on background image - panel is clearly switching to VIVID mode.
Is this VSUS value shared between all picture modes(custom, vivid, standard) ?

After activating Service Mode (Vol Down on set + Info 3x) you will then hit "2". This will come up in "Vivid" mode and then you will see 9 available to toggle through the modes. Toggle to Custom, and THEN Use "2" to get you to VSUS. I think you are out of sequence.

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post #116 of 995 Old 06-24-2013, 10:09 AM
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Just wanted to leave an update -- I had switched my VSUS about a week ago now -- I haven't noticed any negative side effects from the switch -- the yellow blobs are completely gone. My panel isn't under warranty, so I guess I'm alright with the risk. Panasonic basically said that if they send out a tech and the panel needs to be replaced, they aren't going to be doing a whole lot for me anyways. At this point, I guess I'll enjoy my set and hope there aren't any long term side effects!
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post #117 of 995 Old 06-24-2013, 10:12 AM
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Quote:
Originally Posted by scirica 
After activating Service Mode (Vol Down on set + Info 3x) you will then hit "2". This will come up in "Vivid" mode and then you will see 9 available to toggle through the modes. Toggle to Custom, and THEN Use "2" to get you to VSUS. I think you are out of sequence.

Again, I can switch mode to Custom outside of VSUS submenu (key "9"). But as soon as I reach VSUS submenu (by "2" or "1") - panel is going back to VIVID.
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post #118 of 995 Old 06-24-2013, 10:18 AM
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Quote:
Originally Posted by avsDD View Post

Again, I can switch mode to Custom outside of VSUS submenu (key "9"). But as soon as I reach VSUS submenu (by "2" or "1") - panel is going back to VIVID.

Ok, for some reason you are getting different results than me as I walk through the menus. Once I toggle to Custom with the 9 key, I hit 2 until VSUS comes up and I can Test and make my change.

Sorry I couldn't help.

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post #119 of 995 Old 06-24-2013, 10:40 AM
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And question remains - is VSUS setting value shared by all picture modes or could it be set _differently_ for vivid/custom/standard ?
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post #120 of 995 Old 06-24-2013, 11:16 AM
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Quote:
Originally Posted by avsDD View Post

And question remains - is VSUS setting value shared by all picture modes or could it be set _differently_ for vivid/custom/standard ?

I'd be interested to know this as well. I'm seeing positive results (no more blobs) in my ISF Day and ISF Night modes even though all I could touch with VSUS was Custom. Perhaps they share VSUS settings, perhaps it's universal. Very important detail!
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