Sanyo FISHER DVD-1500 Service Manual page 59

IC BLOCK DIAGRAM & DESCRIPTION
IC601 BA5931FP(POWER DROVER)
28 27 36 25 24 23
x2 x2
VCC
D D
-
+
LEVEL
SHIFT
LEVEL
SHIFT
+
-
D D
x2 x2
1 2 3 4 5 6
PIN NO. NAME DESCRIPTION
1 OUT-1 DRIVER CH1 (-)
2 OUT-2 DRIVER CH1 (+)
3 IN 1-1 DRIVER CH1
4 IN 1-2 DRIVER CH1 GAIN
5 NC NOT USED
6 NC NOT USED
7 NC NOT USED
8 GND GND
9 NC NOT USED
10 NC NOT USED
11 NC NOT USED
12 OUT2-1 DRIVER CH2 LOARDING (+)
13 OUT2-2 DRIVER CH2 LOARDING (-)
14 GND SUB STRAIGHT GND
IC503, 606 BU4066BCF(QUAD ANALOG SWITCH)
V C1 C4 I/O4
DD
14 13 12
1 2 3
I/O1 O/I1 O/I2 I/O2
IC891 LE28F4001EN-90(4M BIT FLASH MEMORY)
4
A
7 5
A
6
6
A
5 7
A
8
4
A
3 9
A
10
2
A
11
1
A
12
0
DQ
13
0
14 15 16 17 18 19 20
PIN NAME
A ~A
0 1X
DQ ~DQ
0 7
CE
OE
WE
V
SS
V
CC
22 21 20 19 18
x2 x2
VCC
D
+ -
-
+
LEVEL
SHIFT
x2
7 8 9 10 11
PIN NO. NAME DESCRIPTION
15 REV LOARDING REV
16 FWD LOARDING FWD
17 OUT3-1 DRIVER CH3 (-)
18 OUT3-2 DRIVER CH3 (+)
19 LD IN LOARDING
20 IN 3 DRIVER CH3
21 VCC VCC
22 VCC VCC
23 Vref IN BIAS
24 IN 4-2 DRIVER CH4 GAIN
25 IN 4-1 DRIVE CH4
26 OUT4-2 DRIVER CH4 (+)
27 OUT4-1 DRIVER CH4 (-)
28 GND SUB STRAIGHT GND
O/I4 O/I3 I/O3
11 10 9 8
4 5 6 7
C2 C3 V
SS
3 2 1 32 31 30
A
29 14
A
28
13
A
27 8
A
26
9
A
25 11
OE
24
A
23
10
CE
22
DQ
21
7
DESCRIPTION
ADDRESS INPUT
DATA INPUT/OUTPUT
CHIP ENABLE
OUTPUT ENABLE
WRITE ENABLE
GND
POWER SOURCE
IC602 BA6849FP(TREE-PHASE MOTOR DRIVER)
17 16 14
D
FWD REV
LOGIC
VOLTAGE
CTRL
D D
x2
12 13 14
IC635 BH3540AFS(HAEDPHONE AMP)
16
1
IC803 KM48C512DT-L6(512K x 8BIT DRAM)
- 74 -
DRIVER
TSD
A3
2
GAIN
A2
4 CONTROL
+ -
A1 TL
7
GND
8
HALL AMP
+
H1+
9
-
+
H1- 10
-
+
H2+ D R Q
11
-
CK Q
+
H2-
12
SHORT BRAKE
-
H3+
13 +
-
H3-
14
15 14 13 12 11 10
MUTE1
+
AMP BUFF EVR POW
-
EVR
BIAS TSD
CONT
+
AMP BUFF EVR POW
-
MUTE2
2 3 4 5 6 7
(TSOP-II)
Pin Name Pin Function
A0~A9 Address Inputs
DQ0~DQ7 Data In/Out
V Ground
SS
RAS Row Address Strobe
CAS Column Address Strobe
W Read/Write Input
OE Data Output Enable
Power(+5V)
V
CC
Power(+3.3V)
N.C No Connection
RNF
28
VM1
27
CURRENT
SENSE AMP
VM2
26
V
CC
25 VCC
24 FG
PS 23 PS
TORQUE
SENSE AMP
EC
22
+
-
ECR
21
V
CC
FR
20
SB
18
17 CNF
Hall bias 15 VH
9
8