Sony WX-GT77UI Service Manual page 29

IC401 BD3447AFV-E2 (MAIN Board (2/3))
40 39 38 37 36 35
I2C BUS
LOGIC,
VCO
FADER
FADER
INPUT SELECTOR (3 SIGLE-END AND 3 STEREO IS O)
1 2 3 4 5
34 33 32 31 30
FADER FADER
FADER
LPF
180°/0°
HPF
3 BAND P-EQ (TONE CONTROL)
VOLUME/MUTE
INPUT GAIN
GND GND GND
ISO AMP ISO AMP ISO AMP
6 7 8 9 10
WX-GT77UI/GT78UI/GT78UIM
29 28 27 26 25
7 BAND
SPECTRUM ANALYZER
/LEVEL METER
LVL METER
SPEANA
LVL METER
SPEANA
GND GND GND
ISO AMP ISO AMP ISO AMP
11 12 13 14 15 16
24 23 22 21
EFFECT
17 18 19 20
29