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Sony STR-K670P Service Manual page 31

Fm stereo fm-am receiver

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Service manual (64 pages)

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Operating instructions manual (44 pages)

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Limited warranty (1 page)

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• IC Pin Function Description

DIGITAL BOARD IC1101 MB90488BPF-G-137E1 (SYSTEM CONTROL)

Pin No.

Pin Name

1

DATAO

2

GP9

3

BST

4

HCS

5

HACN

6

XRST

7

PM

8

GP12

9

PCM1800RST

10

PCM1608RST

11

VSS

12

PCM1608ML

13

PCM1608MC

14

PCM1608MDI

15

PCM1608MDO

16

T_CLK

17

T_DI

18

HDOUT

19

HDIN

20

HCLK

21

DLY_B PASS

22

DIR/AD

23

VCC5

24

SYS_MUTE

25

ANA/DIG

26

UPCON_RST

27

FLASH2/VOL_CL

28

FLASH1/VOL_DA

29

SDA

30

SCL

31

ENC_A

32

ENC_B

33

UPCON

34

UPCON_CLK

35

AVCC

36

AVRH

37

AVSS

38

A/D0

39

A/D1

40

A/D2

41

VERSION

42

VSS

43

RDS SIG

44

MODEL

45

VOL ENCODER (A)

46

VOL ENCODER (B)

47

BLUE LED

I/O

I

Audio data signal input from DIR

I

GP9 signal input from DSP

O

BST signal output to DSP

O

HCS signal output to DSP

I

HACN signal input from DSP

O

Reset signal output to DSP

O

PM signal output to DSP

O

GP12 signal output to DSP

O

IC reset signal output to ADC

O

IC reset signal output to DAC

—

Ground terminal

O

Latch signal output to DAC

O

Clock signal output to DAC

O

IC data output to DAC

I

IC data input to DAC

O

Tuner clock signal output terminal

O

Tuner data signal output terminal

I

HDOUT signal input from DSP

O

HDIN signal output to DSP

O

Clock signal output to DSP

—

Connected to ground terminal

—

Connected to ground terminal

—

Power supply

O

Muting and error signal output

O

Analog signal or digital signal output terminal

—

Not used

O

Volume IC clock signal output terminal

O

Volume IC data and latch signal output terminal

I

EEPROM data signal input terminal

O

EEPROM clock signal output terminal

—

Short to ground terminal

—

Short to ground terminal

—

Not used

—

Not used

—

Analog power supply

I

Analog reference voltage input

—

Analog ground terminal

I

Function key push signal input

I

Function key push signal input

I

Function key push signal input

I

Version setting input terminal (DESTINATION)

—

Ground terminal

I

RDS signal detect input

I

Version setting input (MODEL)

I

Volume signal input from rotary encoder

I

Volume signal input from rotary encoder

—

Not used

Description

STR-K670P

31

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