JVC RX-8010RBK, Руководство по обслуживанию

Страница: 27 / 141

RX-8010RBK/ RX-8012RSL
1-27
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
VSS
L-OUT
NC
L-IN
L-LD1
L-LD2
L-A-GND
NC
CS1
NC
GND
CK
L-ch
VDD
R-OUT
NC
R-IN
R-LD1
R-LD2
R-A-GND
NC
CS2
NC
STB
DATA
R-ch
TC9459F (IC381, IC382, IC383) : Electronic volume control
1.Terminal layout
1 24
2
3
4
5
6
7
8
9
10
11
12
16
15
14
13
CS2
NC
STB
DATA
CS1
NC
GND
CK
L-OUT
NC
L-1N
L-LD1
L-LD2
L-A-GND
NC
23
22
21
20
19
18
17
R-OUT
NC
R-IN
R-LD1
R-LD2
R-A-GND
NC
Same as L-ch
Circuit
R-ch 7 to 91
decoder
R-ch data
latch circuit L-ch 7 to 91
decoder
L-ch data
latch circuit
Shift register (24BIT)
Level shift circuit
50k /
915TEP
VR
VSS VDD
2. Block diagram
3.Pin function
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
Symbol
VSS
L-OUT
NC
NC
L-LD1
L-LD2
L-A-GND
NC
CS1
NC
GND
CK
Function
Negative power supply pin
Volume output pin
No connection
No connection
Loudness tap output pin
Loudness tap output pin
Analog GND pin
No connection
Chip select input pin
No connection
Digital GND pin
Clock input pin
Pin No.
13
14
15
16
17
18
19
20
21
22
23
24
Symbol
DATA
STB
NC
CS2
NC
R-A-GND
R-LD2
R-LD1
R-IN
NC
R-OUT
VDD
Function
Data input pin
Strobe input pin
No connection
Chip select input pin
No connection
Analog GND pin
Loudness tap output pin
Loudness tap output pin
Volume input pin
No connection
Volume output pin
Positive power supply pin