Sony HCD-C770 - Amp Board

83
HCD-C770/C990
– AMP Board –
IC301, 304, 306, 307, 309, 311 CXD9702L
IC814 TC7WH157FK (TE85R)
SELECT
116
ST
117
A
1
2
3
A
B
Y
5
Y
B
GND
4
VCC
8
Y
EN G
Y
CROSS OVER
DELAY
FILTER
THERMAL
SHUT DOWN
UNDER
VOLTAGE
LOCK–OUT
HIGH SIDE
LEVEL SHIFT
PROTECTOR
CIRCUIT
PRE
DRIVER
LOW SIDE
LEVEL SHIFT
PRE
DRIVER
−
16
INB
15
GNDB
14
VDDB
20
SB
19
OUTB
13
VDRVB
12
VBOOTB
11
VBBB
VDRVB
VBBB
17
ENB
18
DIAGB
CROSS OVER
DELAY
THERMAL
SHUT DOWN
UNDER
VOLTAGE
LOCK–OUT
HIGH SIDE
LEVEL SHIFT
PROTECTOR
CIRCUIT
PRE
DRIVER
LOW SIDE
LEVEL SHIFT
PRE
DRIVER
6
INA
5
GNDA
4
VDDA
10
SA
9
OUTA
3
VDRVA
2
VBOOTA
1
VBBA
VDRVA
VBBA
7
ENA
8
DIAGA
VDRVA
VDRVB
VBBA
VBBB
VBBB
+
FILTER
+
− −
VBBA
+
+
−