Read Sharp SD-PX15H (serv.man18) Service Manual online
SD-PX15H
7 – 5
• Audio is not output normally.
Put a disc on the DISC tray.
Yes
Is audio signal output to each pin of main unit connector CN4002
?
?
CN4002 1 pin LOUT
CN4002 3 pin ROUT
CN4002 3 pin ROUT
No
Check main unit. (Circuits around IC4101.)
Yes
Is audio signal output to each pin of IC413?
IC413 11 pin LIN1
IC413 12 pin RIN1
IC413 12 pin RIN1
No
Check line from CNP401 to each pin of IC413.
Yes
Is audio signal output to each terminal of IC413?
IC413 54 pin L-OUT
IC413 47 pin R-OUT
IC413 47 pin R-OUT
No
Check circuits around IC413 or replace IC413.