Magnavox VCR VR9035AT01 with power-supply Assy. No. VEPS0198

Could you have a look at:

http://members.shaw.ca/haruspex/Magnavox.htm

Any idea what that component labeled "PR1" is?

There's +5.2V on one side of it, open on the other.

This all started as my VCR started to die.

First, some tuner problems, then the lights on dim when things should have
been bright, then nothing at all, no signs of life. Enough problems to
have me look at the power supply first, but I can't fugure out what this
component is.

Any insight would be appreciated.

- Ralph