JVC XV-S40BK Service Manual page 26

XV-S40BK/XV-S42SL/XV-S45GD
XV-S30BK/XV-E100SL
BA5983FM-X (IC201) : 4CH Driver
1.Block diagram
27
28
Vcc
1
2
2.Pin function
Pin No. Symbol I/O
1
BIAS IN I
2
I
OPIN1(+)
3
I
OPIN1(-)
4
O
OPOUT1
5
OPIN2(+) I
6
OPIN2(-) I
7
OPOUT2 O
8
-
GND
9
I
STBY1
10
-
PowVcc1
11
VO2(-) O
12
VO2(+) O
13
O
VO1(-)
14
O
VO1(+)
74VHC00MTC-X (IC455,IC503) : 2-input nand gate
1.Pin layout
1A 1
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
(TOP VIEW)
1-26
26 25 24 23 22
10k
10k
20k
10k
10k
10k
5
3 4 6 7
Description
Input for Bias-amplifier
Non inverting input for CH1 OP-AMP
Inverting input for CH1 OP-AMP
Output for CH1 OP-AMP
Non inverting input for CH2 OP-AMP
Inverting input for CH2 OP-AMP
Output for CH2 OP-AMP
Substrate ground
Input for CH1/2/3 stand by control
Vcc for CH1/2 power block
Inverted output of CH2
Non inverted output of CH2
Inverted output of CH1
Non inverted output of CH1
14 VCC
13 4A
12 4B
11 4Y
10 3A
9 3B
8 3Y
21 20 19
Vcc
10k
STAND BY
CH4
10k
20k
10k
10k
STAND BY
CH1/2/3
Vcc
8 9 10
Pin No. Symbol I/O
VO4(+) O
15
VO4(-) O
16
VO3(+) O
17
VO3(-) O
18
PowVcc2 -
19
STBY2 I
20
GND -
21
OPOUT3 O
22
OPIN3(-) I
23
OPIN3(+) I
24
OPOUT4 O
25
OPIN4(-) I
26
OPIN4(+) I
27
PreVcc -
28
2.Truth table
A B
L L
L H
H L
H H
L : High impedance
18 17 16 15
10k 10k
10k
10k
10k
10k
Level Shift
Level Shift
Level Shift
Level Shift
10k
10k
10k
10k
10k 10k
10k
12
11 13
14
Description
Non inverted output of CH4
Inverted output of CH4
Non inverted output of CH3
Inverted output of CH3
Vcc for CH3/4 power block
Input for Ch4 stand by control
Substrate ground
Output for CH3 OP-AMP
Inverting input for CH3 OP-AMP
Non inverting input for CH3 OP-AMP
Output for CH4 OP-AMP
Inverting input for CH4 OP-AMP
Non inverting input for CH4 OP-AMP
Vcc for pre block
Y
H
H
H
L