Is it Sony Discman or Walkman : r/vintageaudio

Hey guys, My brother got this walkman recently but it wont play any sound the cd spins and display is working i hear static through the jack but no music? Any advice?

Sony Cd Player - Israel

Sony D-F200 Portable Compact Disc CD Walkman Player Grey with AM FM Ra

CD Walkman D-NE1 : r/walkman

Sony D-NF420 Psyc CD Player Walkman Atrac3plus With Radio, Weather, Blue

Sony D 121 Discman Personal Portable CD Player Mega Bass 10 Playback Modes Great Sony Sound Music Retro Audio Vintage Electronics - UK

Sony Discman D-11 : r/vintageaudio

Sony D-F200 Portable Compact Disc CD Walkman Player Grey with AM FM Ra

Vintage Sony 5 Disc CD Player CDP-C601ES w/ Remote & Manual For Repair Or Parts

Sony Discman - One of the classic Discman is the D-9.

I use this for my cd but i've noticed it only plays max 11 tracks of any type of cd's. Is this normal? : r/walkman

Sony Discman D-11 : r/vintageaudio

Is it Sony Discman or Walkman : r/vintageaudio