Sony CD Walkman D-FJ61 Operating Instructions Manual page 13

To improve broadcast reception
For FM, extend the headphones/earphones cord.
Headphones
or
Earpnones
For AM, reorient the CD player itself.
Note
Keep the headphones/earphones connected to the i/REMOTE jack of the CD player even when listening to
the FM program through the speakers connected to the LINE OUT jack of the CD player. The headphones/
earphones cord works as the FM antenna.
If it is hard to hear the FM broadcast
Set the MONO/STEREO switch to "MONO" using
a pointed material.
The noise will be reduced but the radio will play in
monaural.
When listening to the radio on batteries
If you connect the external power source plug to the DC IN 4.5 V jack of your CD player, the CD
player will turn off. Turn it on by pressing RADIO ON•BAND to continue listening to it.
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