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The Daily Insight

Why is my Panasonic btt755 not working?

Author

Andrew Ramirez

Published Mar 31, 2026

Why is my Panasonic btt755 not working?

The top of the biggest capacitor on the power supply board was crowned indicating it had failed (electrolytic capacitors are built with flat tops, curved or burst indicates no good). All other caps appeared fine and there were no exploded or burned components, so a simple replacement looked like all that was required.

How old is my Panasonic sa-btt755 plasma TV?

My Panasonic SA-BTT755 is doing the same thing and my Panasonic Plasma went at the same time they are in ARC mode. Both about 4 years old. Not sure if got a power spike or not or manufacturer fault.

How big is negative lead on Panasonic btt755?

So I extended the negative lead of one capacitor to 6cm, covered it with some insulation stripped off from some power cable and soldered it to the negative terminal of the other capacitor close to its body.

Why is my Panasonic home theater not working?

When the power button was pressed a ‘Please Wait’ message showed for ~5s then F76 appeared for 0.5s and the unit powered off. Google told me that F76 was a power problem on lots of Panasonic Home Theater models, so I unplugged the unit and took off the cover.

The top of the biggest capacitor on the power supply board was crowned indicating it had failed (electrolytic capacitors are built with flat tops, curved or burst indicates no good). All other caps appeared fine and there were no exploded or burned components, so a simple replacement looked like all that was required.

So I extended the negative lead of one capacitor to 6cm, covered it with some insulation stripped off from some power cable and soldered it to the negative terminal of the other capacitor close to its body.

When the power button was pressed a ‘Please Wait’ message showed for ~5s then F76 appeared for 0.5s and the unit powered off. Google told me that F76 was a power problem on lots of Panasonic Home Theater models, so I unplugged the unit and took off the cover.

How do you remove logic board from Panasonic?

So unplug logic and amp, unscrew power in socket and unscrew the board to remove it. Except it won’t come out – there is a one-time press fit clip that holds the board and its insulation shield to the chassis. A chisel and hammer cut the flat head off that (on the outside of the chassis) and the board was free.