PIONEER GR-209/SDXCN
Manual de Servicio

GR-209

7. GENERAL INFORMATION
7.1 IC
� The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.

M5229P (MAIN BOARD ASSY : IC2, IC3)
� Graphic Equalizer

�Pin Arrangement
IN 1 1 NF 1 2 IN 2 3 NF 2 4 IN 3 5 NF 3 6 IN 4 7 NF 4 8 IN 5 9 NF 5 10 20 �Vcc 19 GND 18 +Vcc 17 OUTPUT 16 INVERTING INPUT 15 NON-INVERTING INPUT 14 NF 7 13 IN 7 12 NF 6 11 IN 6

�Block Diagram
�Vcc GND +Vcc OUTPUT

NONINVERTING INVERTING INPUT INPUT

NF 7

IN 7

NF 6

IN 6

20

19

18

17

16

15

14
560

13

12
560

11

10k

10k

47k

47k

47k

47k

47k

47k

47k

47k

560

560

560

560

560

1
IN 1

2
NF 1

3
IN 2

4
NF 2

5
IN 3

6
NF 3

7
IN 4

8
NF 4

9
IN 5

10
NF 5

�Pin Function
No. 1 2 3 4 5 6 7 8 9 Pin Name IN 1 NF 1 IN 2 NF 2 IN 3 NF 3 IN 4 NF 4 IN 5 Compose the bandpass filter by connecting a capacitor with IN terminals and NF terminals located next to each other, and the gain can be set up by connecting a variable resistor (slide volume). Function No. 11 12 13 14 15 16 17 18 19 20 Pin Name IN 6 NF 6 IN 7 NF 7
Non-inverting input Inverting input

Function Compose the bandpass filter by connecting a capacitor with IN terminals and NF terminals located next to each other, and the gain can be set up by connecting a variable resistor (slide volume). Non-inverting input pin for output OP amp. Inverting input pin for output OP amp. Output pin for output OP amp. Positive power supply pin Ground pin Negative power supply pin

OUTPUT +Vcc GND � Vcc

10 NF 5

11