Schematic Diagram - Key Section - Sony STR-DA3200ES Service Manual

6-56. SCHEMATIC DIAGRAM – KEY Section –
1
A
VOL 2
VOL 1
B
GND
L
STB +3.3V
RESET
DISPLAY
BOARD
MD2
CN705
(Page 85)
MAIN/DSP SW
C
F
D
DISPLAY
BOARD
CN709
(Page 85)
STR-DA3200ES/DG1000
2 3
M-VOL BOARD
S722
MASTER
VOLUME
CN716
9P
1
CN717
2
3
4
5
6
SO 7
SI 8
9
MIC BOARD
CN718
3P
C755
L 1
0.1
GND
2
R
3
4
9P
1 GND
2
STB +3.3V
3
RESET
4
NC
DISPLAY
5
SO (FOR SERVICE)
BOARD
CN705
6 SI
(Page 85)
7
NC
8 MD2
9
MAIN/DSP SW
W701
(CHASSIS)
J701
AUTO
CAL
MIC
87 87
5 6
KEY 1 BOARD
CN715
R760
3P
2.2k
K AD1 1
GND 2
AD1 3
KEY 2 BOARD
R784
2.2k
S725
SPEAKERS
(OFF/A/B/A+B)
STR-DA3200ES/DG1000
7
R761
2.2k
S721
S720
MULTI CH IN HDMI
CN727
3P
G
3 AD3
ADGND DISPLAY
2
BOARD
AD3
1 CN707
(Page 85)