Replacing tv capacitors

SOURCE: Capacitor Voltage

If the 35 volts fit in the space provided for the 16 volts, is OK to use them but they must be 1000uF.

SOURCE: capacitor size

Sure- that's the maximum rating. In fact, if Polaroid had used 35v rated caps in the first place, we probably wouldn't all be replacing them.

BTW another replacement that worked perfectly here.

SOURCE: i want to replace four capicitors in my Samsung LCD TV

yes that is ok to upgrade to the 35v 1000uf cap

SOURCE: Failed Repair Job. A friend of mine called a

replacing the 10V caps with 25V caps is perfectly fine. In fact, if it was manufactured like that, those caps may not have blown.
Replacing a 680uF with a 1000uF could be problematic depending on it's function.
680uF is pretty specific when 500uF and 1000uF are much more common and therefore cheaper - one would think that the engineers would have tried using those in the design rather than a 680uF - makes me think the value of the cap is important to the frequency of the circuit it's in.
Other concerns might be whether he got any of them in backwards or not.
That's a rookie mistake, but still an easy enough one to make (for a rookie).
Also, with that many swollen caps, I wonder if there were any that leaked out the bottom before swelling at the top (IE - if some caps were missed in the replacement procedure)
Also, with that large a number of caps gone, other components may have been compromised or blown.
I'd be testing the transistors around those caps (most likely punched through rather than open), looking for fusible links (surface mount fuses, 0 OHM resistors) that may have opened up etc.
The initial attack on the problem was basically correct, and in many cases probably would have fixed it (if say the 680uF cap was functioning as a ripple filter).
But when that didn't fix it, a deeper analysis should have been done to complete the repair (including locating a 680uF cap).

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