Sears am fm TV Sanyo

[Doug]

TV seams to work am fm doesn't.
I have work the selector am fm tv back and fourth no change.
Antenna rod is Broke so I attached long wire with alligator clip.
Under Sam's they just list copy of manufacture.
564 model so it's a sanyo.
Tried various searches using sanyo am fm TV portable..not finding anything like it.
Sanyo may not had one like it.
On the model 564.50380700 the 5038 is underlined. Any meaning?
Serial 22238588 part of that date code?
Maybe 222. 1972 22 week?
Anyone with any info
I have the power cord which is a plus which uses the 2 pins left side..3 pins on right
Side DC both bottom and top are negative opens when switched by the cord