View Single Post
  #1  
Old 03-26-2020, 02:20 PM
soliman15's Avatar
soliman15 soliman15 is offline
VideoKarma Member
 
Join Date: Mar 2018
Posts: 21
Do I have bad flyback or Sams Photofact is wrong (Emerson 611 TV)

Dear experts, I’m working on my first TV restoration and it is Emerson 611 with older tuner (has channel 1).
I still have no raster, but I do have high voltage, not sure how much but I have good spark. As I was going over the resistance measurements, I found that resistance of the flyback's high voltage windings is reading more than 10 times of what Sams Photofact is calling for.
In the attached schematics T4 is the flyback, as shown below it, the primary (on the left) should be 340 ohm (1 to 3) and 175 between 1 and 2 leaving 165 ohm between 2 and 3.
I’m measuring ~180 between 1 and 2 (good), and about 3000 ohm between 2 and 3?
My question is my flyback is bad or Sams Photofact is wrong.

I’m doubting Sams due to the following:
-Transformers go either short or open they don’t just go up in resistance value and keep working
-If what sams calls for is correct, the plat of the horizontal output tube (V20) will be at more that 50% if the HV which seems too much to me.

Your help is truly appreciated and stay home.. stay safe
Attached Images
File Type: jpg Flyback.jpg (111.8 KB, 27 views)

Last edited by soliman15; 03-20-2021 at 09:30 AM.
Reply With Quote