Never put an FBT in one. The FBT probably was a $30+ part & the whole board a little over $50 Xchange. Swapping the board takes 5 mn,
changing the FBT adds time & wait for part. In the house only
changed board or resoldered. If it had a shorted HOT we changed the board. Other things like PC cons, filter cans, the 32 V regulator
we would fix only on carry ins.
We tried a few HOT's but like a Sony they often ran perfect for weeks
then on a turn on BANG. If you gotta make a living you dont
want that over your head. Fix it fast & keep the customer happy.
Gotta remember this is one of the 3 most complex sets built as
far as PS/Hoz sweep goes. RCA SCR & ITR sets ( and clones) & Sonys with 2 SG613's were the others.
73 Zeno
Quote:
Originally Posted by radiotvnut
I've repaired a lot of them and have even replaced arcing flyback transformers on them; but, I always installed a used flyback (usually, in something I was fixing for resell) because the local parts house didn't have them. I was told that Zenith didn't offer the flyback by itself and when it failed, they wanted you to replace the whole board.
|