Hitachi 55HDT52/DW1-U Service Manual page 78

AUDIO CIRCUIT BLOCK DIAGRAM
+24V
+3.3V
IA01
TAS3103
Volume Mute
I2S
Balance
(Butler)
Bass/Treble
SRS BBE
Loudness
AGC TruBass
SCL/SDA
MUTE
PoWERoFF
I401
TAS5508
I2S I2S
(FC6)
PWM
Mute
MUTE
77
PWM
I402
TAS5122
Digital
Power Amp.
I403
BA4558
Amp.
DW1U
Speaker L
Woofer L
Speaker R
Woofer R
SubWoofer
OUT