Samsung BD-P1400 Service Manual page 26

Trouble Shooting
There's no Digital Audio Out
Check
Current Digital Audio
Setting is PCM.
Yes
Check the
Audio Data at AIC
(Pin )
Yes
Check
Digital Audio Data
at AIC  (Pin ,4,6)
Yes
Digital Audio cable error
4-4
No
the A/V Receiver can
No
Replace the Main PCB
Refer to a pattern
image of Table 4-2
No Check AIC soldering or
replace AIC
Refer to a pattern
image of Table 4-2
Check
No
Decode Current
Bit-Steam
Yes
Set to Bitstream
Samsung Electronics