View Single Post
  #5  
Old 08-01-2014, 08:59 PM
rca2000's Avatar
rca2000 rca2000 is offline
VideoKarma Member
 
Join Date: Mar 2003
Location: cincinnati,ohio
Posts: 2,090
Quote:
Originally Posted by radiotvnut View Post
Looks like a "PC" chassis set. There's a 100 uf cap in the vertical circuit (near the vertical output transistor heatsink) that is a very common failure on these sets. When replacing, use a 100V high temperature (105 degree) capacitor. The originals were either 50V or 63V, 85 degree, and they failed often. Another high failure capacitor is the 100uf, 200V capacitor by the flyback. When it fails, it often burns up the horizontal centering control. I can't remember the value; but, there is another capacitor in the B+ line to the video output stage and if this capacitor opens, it will cause a smeary picture with one side of the screen being darker than the other. It will be a HV cap of at least 250V, probably in the 4.7uf to 22uf range.
Pretty sure the cap you are thinking of is a 100/250. And the 200Vline cap is either 4.7 or 10UF, 250V.

AND_-if this is a monitor-type set--it MAY be a "PM' chassis, similar to the PC, but with an SMPS supply on the side of the chassis and an AVIO package.
Reply With Quote
Audiokarma