Ic Block Diagram -2 - Aiwa CDC-R927M Service Manual

IC BLOCK DIAGRAM -2/3

IC, SAA6579T
MUX
SCOUT
SIN
VDD
VREF
IC, LA6557H
VSS
AGND
CH3,4,5
1
VCC2
POWER
2
VO5—
CH5
VO5+
3
4
VO4+
CH4
VO4— 5
6
VO3+
CH3
7
VO3—
GND 29
VO2+
8
CH2
9
VO2—
10
VO1+
CH1
VO1— 11
CH1,2
POWER
VCC1 12
11k
13
VIN1
VINIG 14
XIN
MODE
Thermal shutdown
MUTE is as follows :
High : Output ON
Low : Output OFF
22k
Signal System Power
5VREG
(External PNPTr)
22k
22k
22k
-35-
XOUT DVDD
VSS
TEST DGND
28
REV
Input
27
FWD
S-GND
26
25
MUTE MUTE
11k
24 VIN4
23
VING4
22
VCC-S
30 GND
VREF-IN
21
20
REG-OUT
19
REG-IN
18 VIN3G
11k
17 VIN3
16
VIN2G
11k
15 VIN2
QUAL
DATA
CL
T57