View Single Post
  #29  
Old 10-12-2012, 07:08 PM
Eric H's Avatar
Eric H Eric H is offline
Administrator
 
Join Date: Jun 2002
Location: So. Calif
Posts: 11,565
Quote:
Originally Posted by Magnavox300 View Post
Yes there is , here is a photo of the ion trap....
I don't remember exactly how it went on, and the schematic doesn't specify.
Does this look right to anyone?
That is the general location where it goes, however it has to be adjusted precisely to get a Raster.

Assuming you have high voltage the procedure is to turn the brightness and contrast up about 3/4 of the way, then you both rotate the trap side to side and slide it forward and backwards, it is adjusted correctly when the picture reaches the brightest point with no neck shadows and good focus, if there is a separate Focus control you may have to go back and forth a little to get it perfect.

There is a front and back to the Trap also, if it's flipped front to back it may still work but it will be in a spot 180 degrees from where it was originally.

Based on what my set had the magnet on the trap should be pointing towards the left side viewed from the rear (it's correct in your picture) if you can only get a raster with it pointing to the right side then flip it front to back and try again.

It's important not to run the set with a misadjusted trap, particularly if the brightness is up high, supposedly it can damage the gun in the CRT if the Beam is hitting something it's not supposed to be.
Reply With Quote