Aiwa XR-DV700 Service Manual download pdf (Page 57)

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IC BLOCK DIAGRAM-4/4

IC, CS4228A

IC, SN74LV541APW

IC, LA6556L

INPUT

FWD

REV

VCC2

VLO–

VLO+

VO4+

VO4–

VO3+

VO3–

VO2+

VO2–

VO1+

VO1–

VCC1

VIN1

VIN1–A

VIN1+A

VIN1–B

S-GND

MUTE2

MUTE1

VIN4

VIN4–

VIN4+

VREF-IN

VIN1 (VREF)-SW

VREF-OUT (CH1)

REG-OUT

REG-IN

VIN3+

VIN3–

VIN3

VIN2+

VIN2–

VIN2

VIN1+B

OUTPUT

CONTROL

+

–

+

–

+

–

+

–

+

–

+

–

LEVEL

SHIFT

CH2-4

MUTE

THERMAL SHUT DOWN

CH1

MUTE

VIN1/VREF

SWITCH

5VREG

3

4

5

6

7

8

9

2

1

LEVEL

SHIFT

LEVEL

SHIFT

10

11

14

LEVEL

SHIFT

AMP-A

AMP-B

+

–

15

16

17

18

23

19

34

35

36

+

–

+

–

+

–

+

–

25

24

22

21

20

33

32

31

30

29

28

+

–

27

26

12

13

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