Capacitor replacement

Typing 472M into google gives you 26,700 replies or thereabouts.

http://www.csgnetwork.com/capcodeinfo.html

Your out by a long way ...

Why are you thinking that is the problem.?

I'd be looking more at the component behind it, as it looks like either a scorch mark, or heat from a resistor.

Mark

Ok, thank you very much! I though that was the problem because it is the only component that has any marks of damage, but it was right in front of a resistor so as you said it could probably be the heat from the resistor that made that mark. Do you suggest replacing both the resistor and the capacitor at this point?

Do you suggest replacing both the resistor and the capacitor at this point?

Why?

If the value of the capacitor (now you have it out) and the resistor are what they should be, then there is really no point.

Looking at the dust and dirt I'm picking its a 5-10 year old device.

Often the marks are often just discolouration from the dust getting hot and marking the item.

Sometimes its poor design, where parts are okay under normal working, but as capacitors age, then they have to work much harder, and hence more heat is imparted onto adjacent parts.

What is wrong with ???.

Have you used google to search for a schematic.???

Many of the power supply boards are common to several brands, so try to find some identifying marks on the board, and search using that.

I doubt this is the cause of your problem.

Mark

This is the main board from a 1970's/1980's tv...the power supply should be ok as it is a separate unit and I got it fixed a few months ago. The problem is that a few days ago the tv made a noise (like a little explosion), the power went out and it never turned on again... I opened it up and this was the only thing I found that had any marks of damage on it. Well, this and another component that I have no idea what it is and that I was going to search on google for if this capacitor did not solve the problem. The reason for not suspecting the other component is that all I can see is that the bottom of the board is darker under that component but the component itself doesn't seem to be damaged.

Now I am going through all the parts in the tv, one by one, cleaning the dust and double checking each component for visual damage.

The following is a picture of the area where the capacitor was:

The two red arrows indicate the main components to which the capacitor was connected.

You can also see the resistor that was right in front of the capacitor, it's the vertical one right above the bottom arrow. Any suggestions on how to procede are welcome

I like the picture of older things that were made to last.

I like the picture of older things that were made to last.