Random Light Bulb inside Sylvania Superset?

[YamahaFreak]

UPDATE: I had him put the requisite 3 amp slo-blo fuse in the holder and plug it in...the set clicks once when power button is pressed, but nothing else. He says he might have felt static on the front of the tube. No weird sounds or smells, fuse intact. He wants to give up on it (not very electronics savvy) but is there a chance this is something simple or stupid? Multiple power button presses results in the same single click. Perhaps weak cap in power supply?

[vol.2]

Zeno mentioned that this particular set tends to have a shorted flyback, and that get real soft when fixed, so it might be a lost cause.

However, if it was me, I'd probably check the all the voltages first, and I'd certainly measure any big filter cans.

You will probably need a schematic to get anywhere with it unless you stumble upon it.

[YamahaFreak]

Originally Posted by vol.2

Zeno mentioned that this particular set tends to have a shorted flyback, and that get real soft when fixed, so it might be a lost cause.

However, if it was me, I'd probably check the all the voltages first, and I'd certainly measure any big filter cans.

You will probably need a schematic to get anywhere with it unless you stumble upon it.

I did make note of that, though I wasn't sure what was meant by 'getting soft'. The set at least has circuit diagrams inside the cabinet.

[vol.2]

Originally Posted by YamahaFreak

I did make note of that, though I wasn't sure what was meant by 'getting soft'. The set at least has circuit diagrams inside the cabinet.

Yeah, that's like meaning the opposite of "sharp" when referring to the raster. Also can be more technically referred to in specific ways, depending on exactly how the raster looks "soft" such as "bloom" or "smearing." Not to be confused with screen "artifacts" like "ghosting" or some kind of pattern.

I would highly recommend just for starters to read the whole repairfaq of TV information. It's not going to cover everything, but it's a good start on really understanding different modes of failure and such

https://www.repairfaq.org/samnew/tvfaq.htm

[zeno]

A few easy things to try.
1) remove the modules & clean the contact. Check for cold joints also.
2) Look on the tuning ASSY for the standby transformer & on/off relay.
They got cold joints.
3) Post the layout chart & pics of chassis and tuner assy's

Soft tube is a low emission / weak CRT that still give a pix, but a poor one.
its usually a slow prosses that over time gets worse & worse.........

Zeno