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Gamma Correction Bypass function on RTC2200?

 
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Malakay



Joined: 16 Mar 2006
Posts: 49
Location: Germany


PostLink    Posted: Mon Jul 13, 2009 10:57 am    Post subject: Gamma Correction Bypass function on RTC2200? Reply with quote


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Hi,

i want to show a few friends what the gamma correction does to the picture. In the past i always had to pull out the Fury from the RTC2200 and directly connect it to the crt cable. But i dont like this much, it costs time and the comparision between gamma correction on/off is hard.

Is there a way to simply solder an "bypass" switch to the pcb so i can do a fast switch between on/off?

Thanks for any info i can get. Smile

regards
Chris

PS: btw, the RTC2200 works perfect for me =)
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kal
Forum Administrator


Joined: 06 Mar 2006
Posts: 15277
Location: Ottawa, Canada

TV/Projector: JVC DLA-RS56


PostLink    Posted: Mon Jul 13, 2009 1:17 pm    Post subject: Reply with quote

You can turn the gamma pot all the way down, but then you'll need to know where you were before to put it back (not always obvious to get exactly right again).

Kal

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Malakay



Joined: 16 Mar 2006
Posts: 49
Location: Germany


PostLink    Posted: Mon Jul 13, 2009 2:46 pm    Post subject: Reply with quote

Thx Kal, but this is not what i want to do Wink As you mentioned, i will never find the good position again Wink

I hope that there is a pin or something that can be pulled up/down and let me bypass the gamma correction.

Pls help! Smile

regards
Chris
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beun



Joined: 28 Jun 2006
Posts: 676



PostLink    Posted: Mon Jul 13, 2009 4:11 pm    Post subject: Reply with quote

Chris,

When you are a bit adventurous you can open the case and short the positive side of C59 (the side with the band) to ground. The location of this capacitor varies a bit depending on the version of the board but can be found on figure 2 of the manual. You can use tweezers to do the actual shorting. Try not to short the other side too long, that is the negative supply. When you blow something up I will fix it for free Very Happy


Kim

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ESL-0.5 Full Range Electrostatic Loudspeakers | RTC2200 Component to VGA Converter with Gamma Boost
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