Amp Board - Sony HCD-S550 Service Manual

IC814 TC7WH157FK (TE85R)
11 7
11 6
EN G
A 1 A Y
2 B
B Y
Y 3
GND 4
8 VCC
ST
SELECT
5
Y
– AMP Board –
IC301, 304, 306, 307, 309, 311 CXD9702L
VBBA VBBA
1
VBOOTA 2
VDRVA VDRVA
3
VDDA 4
GNDA 5
INA 6
ENA
7
DIAGA 8
CROSS OVER
DELAY
LOW SIDE
LEVEL SHIFT
PRE
DRIVER
OUTA
9
SA
10
VBBB VBBB
11
VBOOTB
12
VDRVB VDRVB
13
VDDB 14
GNDB
15
INB
16
ENB
17
DIAGB 18
CROSS OVER
DELAY
LOW SIDE
LEVEL SHIFT
PRE
DRIVER
OUTB
19
SB 20
HCD-S550/S880
UNDER
THERMAL
VOLTAGE
SHUT DOWN
LOCK–OUT
PROTECTOR
CIRCUIT
FILTER
HIGH SIDE
LEVEL SHIFT
PRE
DRIVER
VBBA
VDRVA
VBBA
UNDER
THERMAL
VOLTAGE
SHUT DOWN
LOCK–OUT
PROTECTOR
CIRCUIT
FILTER
HIGH SIDE
LEVEL SHIFT
PRE
DRIVER
VBBB
VDRVB
VBBB
79