JVC XV-S40BK Service Manual page 22

XV-S40BK/XV-S42SL/XV-S45GD/XV-S30BK
BA5983FM-X (IC271) : 4CH DRIVER
1.Block Diagram
27
28
Vcc
1
2
2.Pin Function
Symbol
I/O
Pin No.
1
I
BIAS IN
2
I
OPIN1(+)
3
OPIN1(-) I
4
O
OPOUT1
5
OPIN2(+) I
6
OPIN2(-) I
7
O
OPOUT2
8
GND -
9
I
STBY1
10
-
PowVcc1
11
VO2(-) O
12
O
VO2(+)
13
O
VO1(-)
14
VO1(+) O
BR93LC66F-X(IC403):EEPROM
1.Terminal layout
NC 1 8
VCC 2 7
CS 3 6
SK 4 5
1-22
26 25 23
24
10k
10k
20k
10k
10k
10k
3 4 5 6
Function
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
2.Pin Functions
Symbol
NC
VCC
GND
GND
DO CS
SK
DI
DI
DO
22 21
20
STAND BY
CH4
20k
10k
STAND BY
CH1/2/3
8 9
7
Symbol
Pin No.
VO4(+)
15
VO4(-)
16
VO3(+)
17
VO3(-)
18
PowVcc2
19
STBY2
20
GND
21
OPOUT3
22
OPIN3(-)
23
OPIN3(+)
24
OPOUT4
25
OPIN4(-)
26
OPIN4(+)
27
PreVcc
28
I/O
-
Power supply
-
Connect to GND
I
Chip select input
I
Serial clock input
I
Start bit,OP-code,address,serial data input
O
Serial data output,
Internal state display output of READY/BUSY
19 18 17 16
Vcc
10k 10k
10k
10k
10k
10k
Level Shift
Level Shift
Level Shift
Level Shift
10k
10k
10k
Vcc
10k
10k 10k
12
11 13
10
Function
I/O
O Non inverted output of CH4
O Inverted output of CH4
O Non inverted output of CH3
O Inverted output of CH3
- Vcc for CH3/4 power block
I Input for Ch4 stand by control
- Substrate ground
O Output for CH3 OP-AMP
I Inverting input for CH3 OP-AMP
I Non inverting input for CH3 OP-AMP
O Output for CH4 OP-AMP
I Inverting input for CH4 OP-AMP
I Non inverting input for CH4 OP-AMP
- Vcc for pre block
Function
15
10k
10k
10k
10k
14