View Single Post
  #6  
Old 07-16-2013, 07:03 PM
TinCanAlley's Avatar
TinCanAlley TinCanAlley is offline
VideoKarma Member
 
Join Date: Sep 2008
Location: So Cal, CA
Posts: 1,007
Quote:
Originally Posted by andy View Post
The first issue is some geometric distortion. If the set has a pincushion phase adjustment, it should help, but many sets don't have an adjustment.

The second issue is caused by high frequency luma information getting decoded as color. It's unavoidable on a TV without a comb filter to separate the chroma and luma from each other. You can reduce it by rolling off the video bandwidth, but you will lose fine detail.

The real question is how does it look when viewing normal video? These older sets almost always look shockingly bad when viewing certain test patterns. It's just a fact of the limited technology available at the time. Old TVs are fun to restore, but don't expect to get the same picture quality as a modern set with a digital comb filter.
Forgot...the set does have a pin cushion adjustment. It's on the bottom of the chassis, so is it okay to adjust it while the set is on its side?
__________________
Pioneer SX-1080, Pioneer PL-115D, Pioneer CT-F9191, Pioneer RG-1, Wollensak 8050A, Akai 4000DS MkII, Pioneer CS-05 & Polk 1.2TL

Denon 5803A, Pioneer DVL-700, Pioneer CT-W603RS, Toshiba HD-A3, D-Link DSM-520, Dish VIP-722, Polk 1.2TL, CSi5, LS/fx, RT-800 and PSW-650
Reply With Quote