Sony CDX-CA720X Service Manual page 32

CDX-CA720X
IC601 AN80T51
REFERENCE
VOLTAGE
THERMAL
PROTECTION
PRE
DRIVE
1 2 3
10V TUN-ON 10V-ON
SW SW
IC581 BA8270F-E2
BUS ON
BUS ON
1
SWITCH
RESET
RST 2
SWITCH
BATTERY
BATT
3
SWITCH
4
CLK
VREF 5
DATA 6
I/O
GND
7
32
ASO & PEAK
CURRENT PROTECTION
PRE ANP
DRIVE OUT
4 5 6
STB BU+B AMP+B
(5.8V)
14 VCC
13 RST
12 BUS ON
11 CLK IN
B/U-C
10
9 DATA IN
DATA OUT
8
PRE
DRIVE
ANT
OUT
7 8 9
VCC ANT+B COM TU+B
8.7V (5.1V)
IC407 LA2902V
1
LF IN 2
3 VREF
4
LR IN 5
VREF
DC L 6 VREF
VREF
DC R 7
VREF
RF IN 8
9
10
VREF
RR IN 11
12
PRE
DRIVE
PRE
DRIVE
10 11 12
TU+B GND
(8.4V)
SIGNAL AMP
–
+
–
VCC
+
SIGNAL AMP
–
+
–
VCC
+
LIFT AMP
+
–
–
+
+
–
–
+
LIFT AMP
+
VCC
–
+
–
SIGNAL AMP
+
VCC
–
+
–
SIGNAL AMP
24 LF OUT
23 LR OUT
22 GND
21
20
19 VCC
18 VCC
17
16
15 GND
14 RF OUT
13 RR OUT