View Single Post
  #3  
Old 01-05-2017, 06:45 AM
Tony F Tony F is offline
VideoKarma Member
 
Join Date: Dec 2016
Posts: 156
Thanks Bob, I appreciate your expertise. I have gone through the set and checked every resistor and matched it up with the ones on the schematic. Most match, but not all. There are maybe 6 or 8 that seem to be way off in value. I don't mean the resistor changing value over time, but the color code not even matching the schematic. I take it, these were probably production changes and I should be replacing these with the value that is in there and not with the one shown on the schematic ? There are quite a few that have drifted as well. One thing I did notice is a small crack and what looks like carbon tracking on the damper tube socket (6DA4) between pins 5 and 6. That is looking down at the tube socket (from the top of the board) and counting clockwise from the first pin right of the keyway.
As far as I can tell, everything is original except for R54 (390 ohm) and cap C20 (.022 @400). They have been tacked on above board.
I like your idea of putting the electrolytics on top of the board rather than restuffing the cans.
Tony

Last edited by Tony F; 01-05-2017 at 06:46 AM. Reason: missed a word
Reply With Quote