MHC-SV7AV, ST-SV7 - Sony Audio Service Manual (repair manual). Page 24

24

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Pin No.

Pin Name

I/O

Description

1

SDOS

I

Audio serial data source selection signal input terminal
“L”: internal ADC output, “H”: DAUX input (fixed at “L” in this set)                                               

2

I2C

I

Serial control mode selection signal input terminal    “L”: 3-wire serial, “H”: I2C bus                      

3

SMUTE

I

Soft muting on/off signal input from the system controller (IC501)    “L”: muting on

4

BICK

I

Bit clock signal (2.8224 MHz) input from the CXD9617R (IC601)

5

LRCK

I

L/R sampling clock (44.1 kHz) signal input from the CXD9617R (IC601)

6 to 8

SDTI1 to SDIT3

I

Audio serial data input from the CXD9617R (IC601)

9

SDTO

O

Audio serial data output to the CXD9617R (IC601)

10

DAUX

I

Audio serial data input terminal    Not used (fixed at “L”)

11

DFS

I

Double speed sampling mode signal input terminal
“L”: normal speed, “H”: double speed (fixed at “L” in this set)

12

DEM1

I

De-emphasis signal input terminal    Fixed at “L” in this set

13

DEM0

I

De-emphasis signal input terminal    Fixed at “H” in this set

14

TVDD

—

Power supply terminal (+5V) (for output buffer )

15

DVDD

—

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

16

DVSS

—

Ground terminal (digital system)

17

PDN

I

Power down and reset signal input from the M61512FP (IC607)    “L”: power down and reset

18 to 20

ICKS2 to ICKS0

I

Input clock signal selection terminal    Fixed at “L” in this set

21, 22

CAD1, CAD0

I

Chip address signal input terminal    Not used (fixed at “L”)

23

LOUT3

O

Analog signal output for center to the M61512FP (IC607)

24

ROUT3

O

Analog signal output for sub woofer to the M61512FP (IC607)

25

LOUT2

O

Analog signal output for surround L-ch to the M61512FP (IC607)

26

ROUT2

O

Analog signal output for surround R-ch to the M61512FP (IC607)

27

LOUT1

O

Analog signal output for front L-ch to the M61512FP (IC607)

28

ROUT1

O

Analog signal output for front R-ch to the M61512FP (IC607)

29

LIN–

I

L-ch analog signal negative input from the M61512FP (IC607)

30

LIN+

I

L-ch analog signal positive input from the M61512FP (IC607)

31

RIN–

I

R-ch analog signal negative input from the M61512FP (IC607)

32

RIN+

I

R-ch analog signal positive input from the M61512FP (IC607)

33

DZF2

O

Zero input detection terminal     Not used (open)

34

VCOM

O

Common voltage output terminal                                                                                                         
Large external capacitor is used to reduce power supply noise

35

VREFH

I

Reference voltage (+5V) input terminal

36

AVDD

—

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

37

AVSS

—

Ground terminal (analog system)

38

DZF1

O

Zero input detection terminal     Not used (open)

39

MCLK

I

Master clock signal input from the CXD9617R (IC601)

40

P/S

I

Parallel/serial selection signal input terminal
“L”: serial control mode, “H”: parallel control mode (fixed at “H” in this set)

41

DIF0

I

Audio data interface format terminal    Fixed at “L” in this set

42

DIF1

I

Audio data interface format terminal    Fixed at “H” in this set

43, 44

LOOP0, LOOP1

I

Loop back mode setting terminal    Fixed at “L” in this set