01-29-2024, 12:37 PM
I have a 52-T1612 Philco TV which was recapped/restored in 2017
Over the weekend I powered on the TV for the first time in over a year, wanting to see if it had survived the transportation during a move late last year (it did).
The TV has a great picture and sound but it loses vertical "synch" when the image on the screen changes. So I was watching a college basketball game on Saturday, and every time the program went to a different camera angle, the TV picture would instantaneously lose vertical synch and in less than a second, regain the synch and have a perfect picture from then on, until it was time to go to a different camera, etc.
Any idea what could cause this ? Is it a bad tube or something possibly more major ?
I will post below the tube schematic from the inside of the set.
This TV has a split chassis.
Let me know if I need to post a picture of the synch issue.
Over the weekend I powered on the TV for the first time in over a year, wanting to see if it had survived the transportation during a move late last year (it did).
The TV has a great picture and sound but it loses vertical "synch" when the image on the screen changes. So I was watching a college basketball game on Saturday, and every time the program went to a different camera angle, the TV picture would instantaneously lose vertical synch and in less than a second, regain the synch and have a perfect picture from then on, until it was time to go to a different camera, etc.
Any idea what could cause this ? Is it a bad tube or something possibly more major ?
I will post below the tube schematic from the inside of the set.
This TV has a split chassis.
Let me know if I need to post a picture of the synch issue.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
