Sound Quality is Bad Only when Disc is Played (Volume is Too Low) [08/2019 - ]: Procedure

1. Replace the disc with a new or known good one and check that the malfunction disappears.

   OK

   Malfunction disappears.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [08/2019 - ]