JVC MX-J300, Руководство по обслуживанию

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MX-J300
1-29
GND CH4-OUT
A
CH4-OUTB CH4-INA CH4-INB BIAS IN Vcc Vcc CH3-INB CH3-INA CH3-OUTB CH3-OUT
A
OP IN(+) OP IN(-)
CH1-OUT
A
CH1-OUTB
CH1-INA CH1-INB
T
r-B
Vreg
OUT
MUTE
GND
CH2-INB CH2-INA
CH2-OUTB
CH2-OUT
A
GND
OP-OUT
2 8 2 7 2 6 2 5 2 4 2 3 2 2
2 1 2 0 1 9 1 8 1 7 1 6 1 5
1 2 3 4 5 6 7
8 9 1 0 1 1 1 2 1 3 1 4
D . B U F
D.
B
U
F
13.3K
10K
DRIVER MUTE
50K
50K
REGULATOR
10K
10K
10K
T.S.D
13.3K
D.
B
U
F
D.
B
U
F
D.
B
U
F
D.
B
U
F
10K
13.3K
Vcc Vcc
10K
13.3K
D.
B
U
F
D.
B
U
F
T.S.D;Thermal shutdown
D.BUF:Drive buffer
1.Pin layout & Block diagram
2.Pin function
Function
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CH1-OUTA
CH1-OUTB
CH1-INA
CH1-INB
Tr-B
Vreg OUT
MUTE
GND
CH2-INB
CH2-INA
CH2-OUTB
CH2-OUTA
GND
OPOUT
Driver CH1 - output
Driver CH1 + output
Driver CH1 input
Driver CH1 gain adjustment Input terminal
Connect to the base of external Tr
Fixed voltage output
Mute control terminal
GND
Driver CH2 gain adjustment Input terminal
Driver CH2 input
Driver CH2 + output
Driver CH2 - output
Sub-slate GND
Operation amplifier output
Pin
NO.
Pin
NO.
Symbol
Symbol
15
16
17
18
19
20
21
22
23
24
25
26
27
28
OP IN(-)
OP IN(+)
CH3-OUTA
CH3-OUTB
CH3-INA
CH3-INB
Vcc
Vcc
BAIS IN
CH4-INB
CH4-INA
CH4-OUTB
CH4-OUTA
GND
Operation amplifier - input
Operation amp output
Driver CH3 - output
Driver CH3 + output
Driver CH3 input
Driver CH3 gain adjustment Input terminal
Power supply terminal
Power supply terminal
Bias amplifier input terminal
Driver CH4 gain adjustment Input terminal
Driver CH4 input
Driver CH4 + output
Driver CH4 - output
Sub-slate GND
Level shift Level shift
Level shift
Level shift
BA6897FP-W(IC801): 4channel driver
Description of major ICs