i am trying to find out if this is worth fixing. it's an rca vcr model vr-639hf. when hooked up through coax, using the tuner, i have no sound and playing prerecorded tape has sound but video is in black and white. when hooked up to line out, i have sound coming from tuner, playback is still in black and white. i'm sure i could get a good vcr off e-bay for pretty cheap, but the satisfaction of fixing mine is better. i've been in the business professionally for many years, but don't have enough experience with vcrs to do much, especially without a schematic. any help woulp be great.
thanx, eric.