View Single Post
  #15  
Old 10-22-2011, 05:25 PM
UberVacTuber's Avatar
UberVacTuber UberVacTuber is offline
Hey, I can fix that!
 
Join Date: Nov 2008
Location: Royal Oak, MI
Posts: 58
All the capacitors in the set are new.

It seems that #1 is OK, and is to be expected. That's fine, as if it is normal I'm OK with it. I just wanted to make sure I didn't mis-connect something.

I was given a DTV converter and today I picked up an amplified antenna as well as an RF interference trap. I wanted to compare "broadcast" TV vs DVD and VCR signals. My setup is as follows: I have the antenna hooked up to the DTV converter via coaxial cable, which is then connected to the "IN" on the VCR. The DVD is connected to the VCR so the VCR acts as the RF modulator. The VCR is connected via coax to the RF interference trap, and then to a 75 ohm coaxial to 300 ohm dipole converter. I also temporarily reconnected the removed circuitry to see how it effected the retrace lines.

The retrace lines still show up no matter the video source, but the added circuit seemed to diminish them. I can live with them for now, knowing they are normal for an Admiral set, and I am able to tune them out most of the way.

The big issue I need to address now is the excessive width of the raster. The height I can adjust with no problems, and I have the picture somewhat better centered on the screen. It extends approximately a half-inch beyond the widest point of the CRT. The tube mask is only about 8" wide, so when the chassis is installed in the cabinet a lot of the picture is chopped off. I have a feeling if I can get the width down to the correct level, the linearity control will have a better effect.

Last edited by UberVacTuber; 10-22-2011 at 05:40 PM.
Reply With Quote
Audiokarma