JVC MXDVA5 - 3 DVD/CD Home Theater Mini System, Руководство по обслуживанию

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MX-DVA5
1-27
BIAS
OPIN1(-)
)
OPOUT8(-)
OPIN2(+)
OPIN2(-)
OPOUT2(-)
GND
STBY1
PowVcc1
VO2(-)
VO2(+)
VO1(-)
VO1(+)
BA5983FM (DIC1) : CD-ROM 4ch BTL Driver
1.Pin layout
2.Block diagram
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
PreVcc
OPIN4(+)
OPIN4(-)
OPOUT4
OPIN3(+)
OPIN3(-)
OPOUT3
GND
STBY2
PowVcc
VO3(-)
VO3(+)
VO4(-)
VO4(+)
MA5983FM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
BIAS IN
OPIN
OPIN
OPOUT
OPIN2
OPIN2
OPOUT2
GND
STBY1
PowVcc1
VO2
VO2
VO1
VO1
Input for Bias-amplifier
Non inverting input for ch1
Inverting input for ch1
Output for ch1 op-amp
Non inverting input for ch2
Inverting input for ch2
Output for fh2 op-amp
Substrate ground
Input for ch1/2/3
Vcc for ch1/2 power block
Inverted output of ch2
Non inverted output of ch2
Inverted output of ch1
Non inverted output of ch1
I
I
I
O
I
I
O
-
I
-
O
O
O
O
Pin No. Symbol I/O
Function
3.Pin function
16
15
14 13
12 11 10
9 1
2 3 4 5 6
7
8
–
+
17 18 19
20
21 22 23 24 25 26 27 28
– +
+
Level
shift
Level
shift
–
+ – +
+
–
+
–
+
Level
shift
Level
shift
Vcc
STAND BY
CH 4
–
+
–
+
–
+
–
+
–
–
+
–
+
–
+
–
+
Vcc
STAND BY
CH 1/2/3
Vcc
–
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Pin No.
VO4
VO4
VO3
VO3
PowVcc2
STBY2
GND
OPOUT3
OPIN3
OPIN3
OPOUT4
OPIN4
OPIN4
PreVcc
O
O
O
O
-
I
-
O
I
I
O
I
I
-
Symbol
I/O Function
Non Inverted output of ch4
Inverted output of ch4
Non inverted output 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
Output for ch4 op-amp
Inverting input for ch4 op-amp
Non inverting input for ch4
Vcc for pre block