Sony STR-DE845 service manual Sclk

Models: STR-DE845

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• DIGITAL BOARD IC1201 MB90573PFV-G-296-BND (SYSTEM CONTROLLER)

Pin No.

Pin Name

I/O

Description

 

 

 

 

1

SCLK

O

Serial clock signal output to the dolby digital audio decoder (IC1301)

 

 

 

 

2

SI

I

Serial data input from the dolby digital audio decoder (IC1301)

 

 

 

 

3

SO

O

Serial data output to the dolby digital audio decoder (IC1301)

4

CS

O

Chip select signal output to the dolby digital audio decoder (IC1301)

5

IC

O

Reset signal output to the dolby digital audio decoder (IC1301)

 

 

 

 

6

DSIG

I

Data detect signal input from the digital audio interface receiver (IC1101)

 

 

 

 

7

NC

O

Not used (fixed at “L”)

 

 

 

 

8

VCC

Power supply terminal (+5V)

 

 

 

 

9

SIN0

I

UART signal input from the display controller (IC102)

10

SOT0

O

UART signal output to the display controller (IC102)

11, 12

NC

O

Not used (fixed at “L”)

 

 

 

 

13

XHDWR

O

Data write output to the audio DSP (IC1401)

 

 

 

 

14

XHDRD

O

Data read output terminal Not used (fixed at “L”)

 

 

 

 

15

SOD

I

Serial data input from the audio DSP (IC1401)

 

 

 

 

16

XHDCS

O

Chip select signal output to the audio DSP (IC1401)

17 to 24

HD7 to HD0

O

Two-way data bus with the audio DSP (IC1401)

25

HA0

O

Address data output to the audio DSP (IC1401)

26

XRST

O

Reset signal output to the audio DSP (IC1401)

 

 

 

 

27

HRDY

O

Ready signal output to the audio DSP (IC1401)

 

 

 

 

28

CS

O

Chip select signal output to the A/D, D/A converter (IC1503)

 

 

 

 

29

CCLK

O

Clock signal output to the A/D, D/A converter (IC1503)

 

 

 

 

30

CDTI

I

Data input from the A/D, D/A converter (IC1503)

31

SMUTE

O

Soft mute signal output to the A/D, D/A converter (IC1503)

32

PD

O

Reset signal output to the A/D, D/A converter (IC1503)

 

 

 

 

33

VSS

Ground terminal

 

 

 

 

34

C

External power regulator capacitor is connected terminal

 

 

 

 

35

96kHz

O

Dfs signal output to the A/D, D/A converter (IC1503)

 

 

 

 

36, 37

NC

I

Not used (fixed at “L”)

38

DVCC

Power supply terminal (+5V) (digital system)

39

DVSS

Ground terminal (digital system)

 

 

 

 

40, 41

NC

O

Not used (fixed at “L”)

 

 

 

 

42

AVCC

Power supply terminal (+5V) (analog system)

 

 

 

 

43

AVR+

Power supply terminal (+5V)

 

 

 

 

44

AVR–

Ground terminal

45

AVSS

Ground terminal (analog system)

46

EVSTB

O

Serial strobe output to the select switch circuit

 

 

 

 

47

EVDATA

O

Serial data output to the select switch circuit

 

 

 

 

48

EVCLK

O

Serial clock output to the select switch circuit

 

 

 

 

49

DISPMR

I

Display master request signal input from the display controller (IC102)

 

 

 

 

50

DISPDATA

I

Display master data input from the display controller (IC102)

51

SLVDTA/REQ

O

Slave data/request output to the display controller (IC102)

52

DISPCLK

I

Display master clock input from the display controller (IC102)

53

NC

I

Not used (fixed at “L”)

 

 

 

 

54

VCC

Power supply terminal (+5V)

 

 

 

 

55

SLAT

O

Tuner latch signal output to the FM/AM tuner unit (TM301)

 

 

 

 

48

Page 48
Image 48
Sony STR-DE845 service manual Sclk