Read Sony WX-GT77UI / WX-GT78UI / WX-GT78UIM Service Manual online
WX-GT77UI/GT78UI/GT78UIM
29
IC401 BD3447AFV-E2 (MAIN Board (2/3))
21
22
29
30
23
24
40
FIL
GND
I2C_SIO
I2C_SCK
OUT_FLCH
OUT_FRCH
OUT-RLCH
OUT-RRCH
OUT_SLCH
OUT_SRCH
SA_OUT
SA_DA
NCO
NCO
EBIAS
DS2_R
DS1_R
DS3_R
SA_CLK
39
38
37
VCC(8.5V)
36
27
28
25
26
31
32
33
34
35
20
19
12
11
18
17
1
BUS_LCH
BUS_RCH
TU_LCH
TU_RCH
CD_RCH
AUX_LCH
AUX_GND
AUX_RCH
NCO
NCO
NCO
ZAP_BEEP
NCO
ZAP_BEEP
EBIAS
DS2_L
DS1_L
DS3_L
NCO
2
3
4
CD_LCH
5
14
13
16
15
10
9
8
7
6
I2C BUS
LOGIC,
VCO
FADER
FADER
FADER
HPF
LPF
GND
ISO AMP
GND
ISO AMP
180
°/0°
3 BAND P-EQ (TONE CONTROL)
7 BAND
SPECTRUM ANALYZER
/LEVEL METER
EFFECT
VOLUME/MUTE
INPUT GAIN
INPUT SELECTOR (3 SIGLE-END AND 3 STEREO IS O)
FADER
FADER
SPEANA
LVL METER
LVL METER
SPEANA
GND
ISO AMP
GND
ISO AMP
GND
ISO AMP
GND
ISO AMP
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