BDP-BX39/S390
9-4
Audio section flowchart
Audio does not sound right
No
Video is output properly
No
To Video section flowchart
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
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?
Is there audio system digital signal input to
IC901?
IC901 pin1: A
LO_R
IC901 pin10:ARO_R
No
Replace the MB board
Yes
Are control signals input to IC901?
IC901pin7: MUTE
No
Repl
ace the M
B board
Yes
Is there a problem with mount condition of
IC901
No
Replace IC901 or replace MB board
Check output resistor/capasitors
(R943,R945,C928,C931,C932)
No
IC 302 Pin 7: SW3.3V
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