Sanyo DVD-SL25 Service Manual page 22

IC BLOCK DIAGRAM & DESCRIPTION
IC131 M11L416256SA-35T(Memory)
OE 27
WE 13
LCAS CAS
29
CLOCK CONTROL
CAS
GENERATOR LOGICS
UCAS
28
RAS
14 RAS
CLOCK
GENERATOR
REFRESH
COUNTER
ADDRESS
BUFFERS
16~19
A0-A8
22~26
IC160 LA6560-A(Motor Driver)
I
1
FWD
N
P
U
2
REV
T
3
VCC2
4
VL0–
5
VL0+
6
V04+
7
V04–
8
V03+
9
V03–
POWER
SYSTEM
GND
FR FR
10
V02+
11
V02–
12
V01+
13
V01–
14
VCC1
15
VIN1
16
VIN1–A
AMP-A
17
VIN1+A
AMP-B
18
VIN1–B
WE OE
CONTROL
WE
LOGICS
DATA I/O BUS
COLUMN DECODERS
SENSE AMPLIFIERS
2~5,7~10
31~34,36~39
MEMORY ARRAY
262,144 x 16
Thermal Shutdown
(LOAD OUTPUT Voltage Setting)
BTL-AMP OUTPUT
O
U
C
T
T
P
R
U
L
T
L
S
E
H
V
I
E
F
L
T
L
S
E
H
V
I
E
F
L
T
5VREG(PNP Ext.)
L
S
E
H
V
I
E
F
L
T
L
S
E
H
V
I
E
F
L
T
22k
11k
IC161 NJM12904M / BA10358F (OP Amp)
A OUTPUT 1
2
A INPUT
I/O0-I/O15
A +INPUT 3
GND 4
SIGNAL SYSTEM GND
36
S-GND
35
VCONT
34
MUTE
MUTE
ON/OFF
33
VIN4
22k
32
VIN4–
11k
31
VIN4+
30
VREF-IN
29
VIN1/VREF-SW
VIN1(VREF)-SW
28
VREF-OUT(CH1)
POWER
SYSTEM
GND
FR
FR
27
REG-OUT
26
REG-IN
22k
25
VIN3+
11k
24
VIN3–
23
VIN3
22k
22
VIN2+
11k
21
VIN2–
20
VIN2
19 VIN1+B
- 21 -
+
8
V
A
B OUTPUT
7
B
6 B INPUT
B +INPUT
5