Casio WK-1200 Manual do Utilizador descarregar pdf (Página 12)

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POWER AMPLIFIER (IC301: LA4620)

The power amplifier is a two-channel amplifier with standby switch.

6

16 2 10 11 13

12

Pre-drive

Amp.

Input

Amp.

Power

Amp.

+

–

Pre-drive

Amp.

Input

Amp.

Power

Amp.

+

–

9

7

3

5

+

–

Input

Amp.

Pre-drive

Amp.

Power

Amp.

+

–

Input

Amp.

Pre-drive

Amp.

Power

Amp.

4

19

20

21

22

23

1

18

17

15

14

8

RL Short

Protector

RL Short

Protector

Terminal

Protection

Circuit

Pop Noise

Prevention

Circuit

Ripple

Filter

IN11+

IN11–

IN12–

IN21+

IN21–

IN22–

NC DC MUTE ADJ

Boot11

OUT11

PoGND1

OUT12

Boot12

VCC1

Boot21

OUT21

PoGND2

OUT22

Boot22

VCC2

PriGND

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 24 25

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