Sanyo DVD-SL33KR, Service Manual

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IC BLOCK DIAGRAM & DESCRIPTION
U0404 74HCU04D(INVERTER)
1
1A
2
1Y
3
2A
4
2Y
5
3A
6
3Y
9
4A
8
4Y
11
5A
10
5Y
13
6A
12
6Y
U0405 NC7SZ157P6X(2 INPUT NON-INVERTER)
I
1
GND
I
0
1
2
3
6
5
4
S
Z
Vcc
Pin Name
I
0
, I
1
S
Z
Description
Data Inputs
Control Inputs
Output
Pin Descriptions
(Top View)
1
0
U0801 LA6560(MOTOR DRIVER)
1
2
3
4
5
6
7
8
9
FR FR
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
FR FR
27
26
25
24
23
22
21
20
19 VIN1+B
VIN2
VIN2–
VIN2+
VIN3
VIN3–
VIN3+
REG-IN
REG-OUT
VREF-OUT(CH1)
VIN1(VREF)-SW
VREF-IN
VIN4+
VIN4–
VIN4
MUTE
VCONT
S-GND FWD
REV
VCC2
VL0–
VL0+
V04+
V04–
V03+
V03–
V02+
V02–
V01+
V01–
VCC1
VIN1
VIN1–A
VIN1+A
VIN1–B
SIGNAL SYSTEM GND
(LOAD OUTPUT Voltage Setting)
MUTE
BTL-AMP OUTPUT
ON/OFF
Thermal Shutdown
O
U
T
P
U
T
VIN1/VREF-SW
5VREG(PNP Ext.)
22k
11k
AMP-B
AMP-A
22k
11k
22k
11k
22k
11k
I
N
P
U
T
POWER
SYSTEM
GND
L
E
V
E
L
S
H
I
F
T
L
E
V
E
L
S
H
I
F
T
L
E
V
E
L
S
H
I
F
T
L
E
V
E
L
S
H
I
F
T
C
T
R
L
POWER
SYSTEM
GND
U0802 LM358MX(LOW POWER DUAL OP. AMP)
V
EE
/Gnd
Inputs A
Inputs B
Output B
Output A
V
CC
±
±
+
+
1
2
3
4
8
7
6
5
(Top V iew)