9-6
Audio section flowchart
Audio does not sound right
No
Video is output properly
No
To Video section flowchart
Yes
Is the FL display/LED display correct?
No
To Main flowchart
Yes
Is the drive operating properly?
No
To Drive flowchart
Yes
Is each power supply supplied to the AUDIO
Block?
No
To Power Supply (System) flowchart
I C305 pin4: DAC 3.3V
Yes
Only Analog 2ch L/R Audio affected?
No
Only Digital Audio (HDMI, Coax)
affected?
No
Replace the MB board
Yes
Yes
Is there HDMI output?
No
Replace the MB board
Is there Coaxial output?
No
Is there audio system digital signal input to
IC903?
IC903 pin1: AOMCLK
IC903 pin10:AOBCK
No
Replace the MB board
Yes
Are control signals input to IC907?
IC903 pin7: MUTE
No
Replace the MB board
Yes
Is there a problem with mount condition of
C932
No
Replace IC903 or replace MB board
Check output resistor/capasitors
(R922,R903,C918,C946)
BDP-S485
No
Replace the MB board