MITSUBISHI HS-U70 video input not working

[Ed in Tx]

They are not always visible. This is where an ESR meter comes in handy. With one, you can easily go through a whole board of capacitors and tell which ones are likely bad. When I was working on one with these types of problems, I would test each electrolytic capacitor with my ESR meter, and those that tested with high ESR I would mark with a felt tipped marker as I went through the board, then replace, which usually restored normal operation.

[waltchan]

Originally Posted by Ed in Tx

With one, you can easily go through a whole board of capacitors and tell which ones are likely bad.

Yep, Mitsubishi was really known for that problem. There's also yellow factory-applied glue that could turn brown and become conductive.

I replaced all of my Mitsubishi to Toshiba, and they worked much better.

[jmm83]

ok what caps should i check first i dont have a esr meter but i have one the checks uf rating

[Ed in Tx]

Originally Posted by jmm83

ok what caps should i check first i dont have a esr meter but i have one the checks uf rating

If you plan on owning older electronics this might be time to buy an ESR meter. It will save you countless wasted time.