First, the recording and playback heads are one in the same. Some VCRs may use dedicated heads for special effects but basic playback and recording are done with the same pair of heads.
Secondly if the heads are bad I really wouldn't suggest it as a DIY project. The board needs to be calibrated for the heads and probably require a oscilloscope among other not so common instruments.
It's possible the heads were damaged during your cleaning, any up and down movement over the delicate heads can damage the heads.
Personally I'd just keep an eye on Craigslist or local pawn shops. I regularly see lightly used VCRs going for 5-10 dollars so IMO it's not really worth trying to fix a typical VCR.
Secondly if the heads are bad I really wouldn't suggest it as a DIY project. The board needs to be calibrated for the heads and probably require a oscilloscope among other not so common instruments.
It's possible the heads were damaged during your cleaning, any up and down movement over the delicate heads can damage the heads.
Personally I'd just keep an eye on Craigslist or local pawn shops. I regularly see lightly used VCRs going for 5-10 dollars so IMO it's not really worth trying to fix a typical VCR.