Fixing Overscan - Canadian TV, Computing and Home Theatre Forums

chachie222 · 2008-02-25, 01:21 PM

Hi everyone,

I have a RCA D52W20 tv (didn't buy it, came free with furniture) and I notice quite abit of overscan when watching HD. For reference, the right edge of the small circle in the CBS logo touches the right side of my screen.

I've tried fixing it by entering the tech setup and playing with the different positions. Problem I'm having is the center of the picture "bows" once I get the picture centered.

I guess I'm just getting impatient and I'm wondering if it's really worth it. My thinking is if the picture is zoomed in abit (~2" all around) would this not cause some resolution problems?

Thanks for any input

rsambuca · 2008-02-25, 01:49 PM

This doesn't sound quite right. Can you post a picture so we can see what you are talking about?

57 · 2008-02-25, 02:19 PM

CRT-RPTVs typically have 4-6% overscan. The amount you have sounds "normal". You can check the % overscan with a setup DVD:

http://www.digitalhome.ca/forum/showthread.php?t=76161

If there is no "H-size" or "V-size" or similar in the service menu, there may be nothing to do.

I found some potentiometers on my chassis (Hitachi) that allowed me to reduce the overscan some, but required many hours in the DCAM convergence to straighten things out afterwards due to the "bowing" you mentioned. This route is not recommended since it can apparently damage your TV by taking things "out of range".

Also, see the following post on the service menu and heed the warnings:

http://www.digitalhome.ca/forum/showthread.php?t=43201

jayoldschool · 2008-02-25, 02:40 PM

I have an RCA Scenium 61, and the menu will be the same as yours. You can fix the overscan with the service menu. You will be able to adjust the "bowing" with one of the adjustments. Once you are in the service menu, write down all the numbers, then start adjusting, slowly, so you can figure out what each thing does. I can't remember the name of the adjustment you need, but it is there.

2008-02-25, 01:21 PM	#1
chachie222 Rookie Join Date: Feb 2008 Posts: 10	Fixing Overscan Hi everyone, I have a RCA D52W20 tv (didn't buy it, came free with furniture) and I notice quite abit of overscan when watching HD. For reference, the right edge of the small circle in the CBS logo touches the right side of my screen. I've tried fixing it by entering the tech setup and playing with the different positions. Problem I'm having is the center of the picture "bows" once I get the picture centered. I guess I'm just getting impatient and I'm wondering if it's really worth it. My thinking is if the picture is zoomed in abit (~2" all around) would this not cause some resolution problems? Thanks for any input

2008-02-25, 02:19 PM	#3
57 Moderator Join Date: May 2002 Location: Toronto, Rogers, 8300HD, eHDD, Panasonic TCP65S1, Denon AVR4310Ci; 8300HD, eHDD & Sony KDL40W3000 Posts: 50,293	CRT-RPTVs typically have 4-6% overscan. The amount you have sounds "normal". You can check the % overscan with a setup DVD: http://www.digitalhome.ca/forum/showthread.php?t=76161 If there is no "H-size" or "V-size" or similar in the service menu, there may be nothing to do. I found some potentiometers on my chassis (Hitachi) that allowed me to reduce the overscan some, but required many hours in the DCAM convergence to straighten things out afterwards due to the "bowing" you mentioned. This route is not recommended since it can apparently damage your TV by taking things "out of range". Also, see the following post on the service menu and heed the warnings: http://www.digitalhome.ca/forum/showthread.php?t=43201 __________________ 57's Home Theatre (Latest equipment & photos) 57's Optimization Services (Home Theatre Optimization)

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2008-02-25, 01:49 PM	#2
rsambuca Veteran Join Date: May 2006 Location: Calgary Posts: 1,632	This doesn't sound quite right. Can you post a picture so we can see what you are talking about?

2008-02-25, 02:40 PM	#4
jayoldschool Veteran Join Date: Feb 2007 Posts: 1,746	I have an RCA Scenium 61, and the menu will be the same as yours. You can fix the overscan with the service menu. You will be able to adjust the "bowing" with one of the adjustments. Once you are in the service menu, write down all the numbers, then start adjusting, slowly, so you can figure out what each thing does. I can't remember the name of the adjustment you need, but it is there.