Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

52-T1612 Synch Issues
#1

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.


Attached Files Image(s)
   


Messages In This Thread
52-T1612 Synch Issues - by winkydink - 01-29-2024, 12:37 PM
RE: 52-T1612 Synch Issues - by winkydink - 01-30-2024, 11:31 AM
RE: 52-T1612 Synch Issues - by MrFixr55 - 01-30-2024, 08:07 PM
RE: 52-T1612 Synch Issues - by winkydink - 01-31-2024, 04:11 PM
RE: 52-T1612 Synch Issues - by MrFixr55 - 08-11-2024, 09:19 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 610B oscillator wiring
Thanks for the replies. It's not the really the hum that I am after. Just trying to understand why only the shortwave ba...Tubester — 04:01 PM
Restoring Philco 96
70 and 90 are Superhets, but at least the 2x45 model of 90 uses the Plate detector (and so does 70). Also the Atwaters,...morzh — 03:28 PM
Restoring Philco 96
Morzh, Prayers for your mom. I am sure that there was enough pain living through the Holocaust as a child. I pray dail...MrFixr55 — 02:19 PM
Philco 610B oscillator wiring
Hi Dan, Divide and conquer. First off trry to differentiate between 60Hz and 120 Hz hum. 120 Hz hum has a higher pit...MrFixr55 — 01:49 PM
Restoring Philco 96
Yes, other than takin a toll on your back, they are undeed way more repair friendly than many other Philcos. To me, som...morzh — 01:04 PM
Philco 610B oscillator wiring
If the wires look like they were this way from the factory (very neat and very dull soldering joints), I'd leave them be...morzh — 12:58 PM
My Philco 37-116 Restore
I managed to open up the Expander Unit and replace the grid cap wires. Tested the connections found they looked good and...dconant — 12:19 PM
610B Oscillator Questions
I've included a picture of the 'actual' schematic I created. I double checked several times and it appears to be accur...Tubester — 09:26 AM
First Radio restoration
Hi, welcome. I did a 40-130 a few years ago. I was very surprised at how well it performed. Just take care with that sp...Stan the Man — 07:20 AM
Restoring Philco 96
Situations of the like are not pleasant. Life is inevitable. Best of luck to you. I have two 76 chassis, in different ...Stan the Man — 07:12 AM

[-]
Who's Online
There are currently no members online.

>