JVC CX 710 VHF/UHF tuner repair.

[zeno]

Tuners were pretty good. Most symptoms are snowy, dead, loss
of a band. Yours shows classic IF overload. Washing out, buzz,
tearing etc. RF AGC fail gives snow & or jittery pix usually.
You can test that at the AGC pin for signal/no signal changes OR
if you have a little bias box unhook the AGC & set the voltage.
If it were the olden days I would give an estimate for the IC
& lots of labor. While the IC is out I would check the resisters in
the area ( dont have to lift them usually).

73 Zeno
LFOD !