51swx20b Red Push Problem !! - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 17 Old 10-29-2002, 05:51 PM - Thread Starter
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I calibrated my s-video and composite last night with avia dvd - I used the news and music modes on my 51swx20b .

The red push was +25 on the scale. I adjusted it by lower the color.

With tint if you go to the left with the scale is that adding red or subtracting
red?

Is there any other way to correct the red push without going into service mode?

My HD and DVD reds look great in movie mode and Medium color Temp.


Thanks Coop
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post #2 of 17 Old 10-29-2002, 07:00 PM
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Greetings

Red push attenuators ...

However ... the parameters are all in the service menu to take care of this ...

5 minutes is about all it takes. Depends on competency though.

Regards

Michael Chen @ The Laser Video Experience
ISF/THX/TLV Video Instructor
The Video Calibration Education Hub - www.TLVEXP.com

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post #3 of 17 Old 10-29-2002, 07:36 PM
 
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It's one of the reason's you hire an ISF technician...

http://www.soundandvisionmag.com/hot...?ArticleID=124
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post #4 of 17 Old 10-29-2002, 07:39 PM
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This may be somewhere already...

But how can you adjust the red push down in the service menu? Which options specifically on the Hitachi? (swx20b)
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post #5 of 17 Old 10-29-2002, 07:42 PM
 
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I'll quote MichealTLV cause it is easier than typing it...(gotta love copy and paste)

Originally written by MichealTLV
Quote:
If you do not have access to the colour decoder, then all you can do is eyeball the colour saturation and the tint. The blue filter cannot be trusted on TV's that do not have properly set decoders. The filters are designed to be used on broadcast monitors that work as expected. The filters give correct results on these sets. Since this is rarely the case in consumer products, one has to know when to put down the filter and do it by eye.

If you have access to the colour decoder parameters in the service menu, then you don't really need the AVIA pattern with the flickering boxes. A standard smpte colour bar pattern is enough.

Best done by covering the other two crts ... colour tint ... cover the green and red

Red parameters ... cover green and blue

Green parameters ... cover red and blue

Decoder values in TV's look like R-Y ... B-Y ... R-pha ...etc.

Regards
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post #6 of 17 Old 07-28-2003, 10:10 AM
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None of these readings are making sense.
Can someon post instruction for dummies? :)
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post #7 of 17 Old 07-28-2003, 03:27 PM
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Quote:
Originally posted by Michael TLV
Greetings

Red push attenuators ...

However ... the parameters are all in the service menu to take care of this ...

5 minutes is about all it takes. Depends on competency though.

Regards
Red push attenuators can only correct the push on component inputs.

There is an easy way to compensate for red push. It involves just one simple service menu adjustment.

COLORG0 = change from 0 to 1

My testing indicates that this parameter simply pulls in the red signal (and its purpose likely is to specifically adjust red push). It will definitely help your electric reds. I will be posting more on my findings on this parameter soon (I am now running this at 3 and I will be explaining why...run at 1 if you have not corrected red push in the ISF menu). If you elect to do this, please post your color decoder scale readings after completion. This will help confirm my observations/analysis.

Stay tuned


------------------------------------------------------pasted
To get to the ISF menu: Go into the service menu (Press input, then power (both on the console), let go of input when you see red light), press the joystick up one. You will now be highlighting the ISF menu. Press right on the joystick and you are in the ISF menu.

Once in the ISF menu, scroll down through the list until you find COLORG0. Once you have highlighted it, press the right arrow to change value from 0 to 1. Press select to confirm. Then simply keep pressing exit until you are completely out of the SM. Enjoy your better picture.
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post #8 of 17 Old 07-28-2003, 03:46 PM
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Marc,

Running the COLORG0 parameter at 03 alters your split 50 or middle IREs for red color decoding. You can get by with it set at 01 and things look fine. But, I don't recommend setting it to 03.

The best pattern to view the adjustment on is split 100. You will see the COLORG0 set to 01 provides the best saturation and hue balance. COLORG0 set at 00, 02, or 03 provides a higher red saturation than 01. Taking COLORG0 out to 03 almost defeats the purpose of adjusting it at all.

Bill
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post #9 of 17 Old 07-28-2003, 06:17 PM
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Quote:
Originally posted by gambrelw
Marc,

Running the COLORG0 parameter at 03 alter your split 50 or middle IREs for red color decoding. You can get by with it set at 01 and things look fine. But, I don't recommend setting it to 03. The best pattern to view the adjustment on is split 100. You will see the COLORG0 set to 01 provides the best saturation and hue balance. COLORG0 set at 00, 02, or 03 provides a higher red saturation than 01. Taking COLORG0 out to 03 almost defeats the purpose of adjusting it at all.

Bill
I will check that pattern tonight and make additional observations. I believe 00 is the proper setting for an accurate color decoder (and should be the setting used when calibrating the color decoder). However, at least on my set, the color of red seems very different than that on my Mits. The various levels of COLORG0 seem to be various levels of red pull being applied. I will observe more tonight, and start a new topic on all my observations.
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post #10 of 17 Old 07-28-2003, 06:46 PM
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After you adjust COLORG0, you will need to recalibrate the rest of the color decoder. When you get done with calibrating color, go back an test COLORG0. In all cases, COLORG0 performed better at 01 when using the split 100. It didn't matter if the color decoder was calibrated with COLORG0 set at 00 or 01.

Bill
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post #11 of 17 Old 08-03-2003, 06:27 PM
 
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What ever happened to that huge red push thread?
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post #12 of 17 Old 08-19-2003, 01:19 PM
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What happened to the thread. I bookmarked this and come back and can't figure out what needs to be done to tweak Hitachi 51uwx20b.
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post #13 of 17 Old 08-19-2003, 02:32 PM
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try the search bud

"51F500 tweaks" will get even more than "hitachi red push"
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post #14 of 17 Old 08-19-2003, 02:41 PM
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You recommend often about doing the search.
I have taken your advise before and tried it here again.

Have you done the search on Hitatchi Red Push?
It takes you to this very thread.
Any other suggestion?
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post #15 of 17 Old 08-19-2003, 05:22 PM
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OMG....!!

The red push thread will and cannot die!!

lol

P.S.-I loved that thread......

XBOX Gamertag:deezusmusic
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post #16 of 17 Old 08-19-2003, 06:41 PM
 
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There is another larger red push thread to look for.

Someone will post a link
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post #17 of 17 Old 08-20-2003, 01:09 PM
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Quote:
Originally posted by jimnycricket
You recommend often about doing the search.
I have taken your advise before and tried it here again.

Have you done the search on Hitatchi Red Push?
It takes you to this very thread.
Any other suggestion?
Don't search this thread, search this forum.

I just tried and got exactly what I was looking for. I'm trying to help you learn how to help your self.

https://www.avsforum.com/avs-vb/search.php
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