CD-C471H (serv.man13). IC function tables - Sharp Audio Service Manual (repair manual). Page 9

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1-3*

RF1C1-RF1C3

Terminal to connect capacitor of filter configuration for equalizer F1 band
Connect the capacitor between LF1C1(RF1C1) and LF1C2(RF1C2) between LF1C2 (RF1C2) and LF1C3(RF1C3).

4-6

RF2C1-RF2C3

Terminal to connect capacitor of filter configuration for equalizer F2 band
Connect the capacitor between LF2C1(RF2C1) and LF2C2(RF2C2) between LF2C2 (RF2C2) and LF2C3(RF2C3).

7-9

RF3C1-RF3C3

Terminal to connect capacitor of filter configuration for equalizer F3 band
Connect the capacitor between LF3C1(RF3C1) and LF3C2(RF3C2) between LF3C2 (RF3C2) and LF3C3(RF3C3).

10-12

RF4C1-RF4C3

Terminal to connect capacitor of filter configuration for equalizer F4 band
Connect the capacitor between LF4C1(RF4C1) and LF4C2(RF4C2) between LF4C2 (RF4C2) and LF4C3(RF4C3).

13

RF5

Terminal to connect capacitor of filter configuration for equalizer F5 band
Terminal to connect the externally provided capacitor

14

RTOUT

Equalizer output terminal

15

RFIN

Input terminal of Rch front side 4dB step control

16

RFCOM

Common terminal of Rch front side 1dB step control

17

RFOUT

Output terminal of Rch front side control

18

RRIN

Input terminal of Rch rear side 4dB step control

19

RRCOM

Common terminal of Rch rear side 1dB step control

20

RROUT

Output terminal of Rch rear side control

21

RVREF

Internal analog ground terminal

22

VREF

Connect the capacitor of about several 10 uF between Vref and AVSS (VSS) so as to prevent power supply
ripple in the VDD/2 voltage generating section.

23

CL

Terminal to input serial data and clock for control

24

DI

Terminal to input serial data and clock for control

25

CE

Chip enable terminal. Data is written in the internal latch with a timing of changing H to L, and the specific
analog switch is actuated. Data transfer is enabled on the H level.

26

VSS

GND

27

LVREF

Internal analog ground terminal

28

COUT

Output terminal of Lch rear side control

29

LRCOM

Common terminal of Lch rear side 1dB step control

30

CIN

Input terminal of Lch rear side 4dB step control

31

LFOUT

Output terminal of Lch front side control

32

LFCOM

Common terminal of Lch front side 1dB step control

33

LFIN

Input terminal of Lch front side 4dB step control

34

LTOUT

Equalizer output terminal

35

LF5

Terminal to connect capacitor of filter configuration for equalizer F5 band
Terminal to connect the externally provided capacitor

36-38

LF4C3-LF4C1

Terminal to connect capacitor of filter configuration for equalizer F4 band
Connect the capacitor between LF4C1(RF4C1) and LF4C2(RF4C2) between LF4C2 (RF4C2) and LF4C3(RF4C3).

39-41

LF3C3-LF3C1

Terminal to connect capacitor of filter configuration for equalizer F3 band
Connect the capacitor between LF3C1(RF3C1) and LF3C2(RF3C2) between LF3C2 (RF3C2) and LF3C3(RF3C3).

42-44

LF2C3-LF2C1

Terminal to connect capacitor of filter configuration for equalizer F2 band
Connect the capacitor between LF2C1(RF2C1) and LF2C2(RF2C2) between LF2C2 (RF2C2) and LF2C3(RF2C3).

45-47*

LF1C3-LF1C1

Terminal to connect capacitor of filter configuration for equalizer F1 band
Connect the capacitor between LF1C1(RF1C1) and LF1C2(RF1C2) between LF1C2 (RF1C2) and LF1C3(RF1C3).

48

LTIN

Equalizer input terminal

49

LSELO

Input selector output terminal

50

LINVIN1

Operational amplifier reverse input terminal for input gain setting

51-55

L5-L1

Input signal terminal

56

VDD

Power terminal

57-61

R1-R5

Input signal terminal

62

RINVIN1

Operational amplifier reverse input terminal for input gain setting

63

RSELO

Input selector output terminal

64

RTIN

Equalizer input terminal