Electrolytic Capacitor Replacement?

[Ruru]

Hi Jhalphen, Thank you for the reply!~ I'll try to answer to the best of my ability.

I believe the loss of Vscan has to do with the Type FP Electrolytic capacitor that was replaced last night. It was suggested that a 40UF 350v cap was replaced with a 47uf 400v cap. As it was described to me as being the 'Modern day Equivalent'.. I believe this to be most likely the cause of the failure. however i am not certain.

Using the diagram on the back of the television which lists the tubes aswell as the output. I can say it's my opinion that the Vertical output block i'm fairly certain is what sparked up like a rocket. However on inspection i didn't see anything that would elude to damage last night. I'll be reviewing it again now that i have some free time.

I've contacted RonL and he mentioned taking a look for me! Incredibly nice of him to do so. I've been waiting to hear back but as it's the holidays I'm certain that everyone is just busy.

The Chassis Model is CT1905A 01. The model of the television is 19TC318B .
It seems that the schematic can be found in a book called RCC Television service manual. 1964 Supplement NO. 49

I do have an oscilloscope however i don't know how to use it unfortunately. I had borrowed it from someone else but hadn't actually had needed to use it. The television i believe does have a power transformer in it. or what I'd describe as one. but being unable to use the scope confidently I'm unsure if that'd be the greatest route to go.

I'll certainly try to change the thread name however i can't quite seem to figure out how to!

[jhalphen]

Hi to all,
Hi Ruru, Thanks! for the reply.

Precise model # and chassis # is precious data.

About the electrolytic cap you replaced, it's spot on. 7 microfarads higher has no importance. Electrolytics, historically, always had very wide % variations, often - (minus) 5/10% and + 20% tolerance.
I think you wired it in correctly as +/- polarity inversion usually results in a show display.
However, with the evolution of markings & brands, some have the + clearly identified, on others, a black line indicates minus (and no + marking). When replacing many or if tired, we all make mistakes sometimes, even the best of us.

V output tube "flash & bang" (once): could be a partially shorted/intermittent tube. Have a known good or new one to substitute?
Tubes are tough animals, but the TV is from the 60s and may have been watched thousands of hours.

Thread name change: you created the thread; go back to your first post and you should be able to edit the title.

Best Regards
jhalphen
Paris/France