DOWNLOAD Sony XR-C7200 / XR-C7200W Service Manual ↓ Size: 962.67 KB | Pages: 35 in PDF or view online for FREE

– 34 –

37

GAIN12

38

GAIN11

39

IN14

40

IN13

41

IN12

42

IN11

INPUT SW

36

GAIN134

LOUD

VOLUME

8dB STEP

VOLUME

1dB STEP

TONE

FADER

35

LDLC1

34

LDHC1

33

INAO1

32

VRIN1

31

VOUT1

30

TIN1

29

TCLC1

28

TCLC11

27

TCLC12

26

TCO1

25

FDIN1

24 FNTO1

23 REO1

VCTBUFF

VCTBUFF

VCTBUFF

LATCH

CONTROL

LATCH

1

GAIN234

LOUD

VOLUME

8dB STEP

VOLUME

1dB STEP

TONE

FADER

2

LDLC2

3

LDHC2

4

INAO2

5

VRIN2

6

VOUT2

7

TIN2

8

TCLC2

9

TCLC21

10

TCLC22

11

TCO2

12

FDIN2

14 REO2

13 FNTO2

VCTBUFF

VCTBUFF

VCTBUFF

SHIFT

REGISTER

ZCDET

43

IN21

44

IN22

45

IN23

46

IN24

47

GAIN21

48

GAIN22

INPUT SW

18 VCC

17 VCT

16 DATA

15 TIMER

22 CE

21 CLK

20 DGND

19 GND

45k

45k

1

2

3

4
5

6

7

8

9

10

14

13

12

11

BUS ON

SWITCH

RESET

SWITCH

BATTERY

SWITCH

BUS ON

RST

BATT

CLK

VREF

DATA

GND

VCC

RST
BUS ON

CLK IN

BU IN

DATA IN

DATA OUT

1

2

3

4

5

+ 
–

VREF

CD

NC

OUT

VDD

GND

+

–

+

–

+

–

+

–

OVER VOLTAGE

PROTECT

REGULATOR

1

2 3 4

5

6

7

8

9

10

12

11

NC

MODE2

MODE1

STB

VDD

AMP

VCC

ANT

COM

AM

FM

GND

– 35 –

•

µ

1

ILL.IN

I

Dimmer detection signal input    Dimmer is present at input of “L”

2

ST

I/O

3

SD IN

I

Station detector detect input from the FM/AM tuner unit (TU11)
Stop level for SEEK, BTM, etc. is determined    SD is present at input of “H”

4

AVSS

—

Ground terminal (for A/D converter)

5

LCDANG

O

Output signal for the LCD view angle adjustment

6

PLLCE

O

PLL serial chip enable output to the FM/AM PLL (IC91)

7

AVREF1

I

Reference voltage (+5V) input terminal (for D/A converter)

8

PLL SI

I

PLL serial data input from the FM/AM PLL (IC91)

9

PLL SO

O

PLL serial data output to the FM/AM PLL (IC91)

10

PLL CKO

O

PLL serial data transfer clock signal output to the FM/AM PLL (IC91)

11

COLSEL

I

12

LCDSO

O

Serial data output to the liquid crystal display driver (IC701)

13

LCDCKO

O

Serial data transfer clock signal output to the liquid crystal display driver (IC701)

14

LCDCE

O

Chip enable output to the liquid crystal display driver (IC701)

15

LCDINH

O

Blank indicate control signal output to the liquid crystal display driver (IC701)
“L”: no display

16

UNISI

I

Serial data input from the bus interface (IC571) (for SONY bus)

17

UNISO

O

Serial data output to the bus interface (IC571) (for SONY bus)

18

UNICKI

I

Serial data reading clock signal input terminal (for SONY bus)

19

UNICKO

O

Serial data transfer clock signal output to the bus interface (IC571) (for SONY bus)

20

BUSON

O

Bus on/off control signal output to the bus interface (IC571) (for SONY bus)    “L”: bus on

21

SYSRST

O

Reset signal output to the bus interface (IC571) (for SONY bus)    “L”: reset

22

AMPON

O

Standby control signal output to the power amplifier (IC701)    “L”: standby

23

TU ON

O

Tuner system power supply on/off control signal output to the BA3918 (IC601)    “H”: tuner on

24

FM ON

O

FM system power supply on/off control signal output to the BA3918 (IC601)    “H”: FM on

25

PW ON

O

Main system power supply on/off control signal output to the BA3918 (IC601)    “H”: power on

26

ILLON

O

27

COLOR

O

Illumination color selection signal output    “H”: amber, “L”: green    Used for the E model

28

AMSON

O

Tape auto music sensor control signal output to the CXA2510Q (IC231)
“L” is output to lower the gain for audio level at FF/REW

29

REL

I

Reel table rotation detect signal input from the take-up and supply reel sensor

30

MTLIN

I

Auto METAL detect signal input from the METAL detect switch on the mechanism block

31

POS3

I

32

POS2

I

33

GND

—

Ground terminal

34

POS0

I

35

POS1

I

Tape position detect input from the tape operation switch on the mechanism block

Tape position detect input from the tape operation switch on the mechanism block

Input of FM stereo detection signal from FM/AM tuner unit (TU11), and output of forced
monaural control signal to FM/AM tuner unit (TU11)  (Commonly used for stereo display input
and forced monaural output)
FM stereo detection at input of “L”, forced monaural at output of “L”

Power supply on/off control signal output terminal at the illumination and liquid crystal display
driver (IC701)    “H”: power on
At power select switch (S501) on mode: “H” output at the accessory on
At power select switch (S501) off mode: “H” output at the power on

Input terminal to set whether the illumination color change function is present or not
“L”: illumination color change function is present
US, Canadian models: fixed at “H”, E model: fixed at “L”

– 36 –

36

LM LOD

O

Loading/tape operation motor control signal output to the LB1638M (IC201)
(For the loading direction and forward side operation)    *1

37

LM EJ

O

Loading/tape operation motor control signal output to the LB1638M (IC201)
(For the eject direction and reverse side operation)    *1

38

N/R OUT

O

Forward/reverse direction control signal output to the CXA2510Q (IC231)
“H: forward direction, “L”: reverse direction

39

MTLON

O

METAL on/off control signal output to the CXA2510Q (IC231)    “H”: METAL on

40

CM ON

O

Capstan/reel motor (M901) drive signal output terminal    “H”: motor on

41

TAPON

O

Tape system power supply on/off control signal output terminal    “H”: tape on

42

PW SEL

I

Power select switch (S501) input terminal    “L”: off (halt mode), “H”: on (operation mode)

43

RC IN1

I

Rotary remote commander shift key A/D input terminal

44

TEST

I

Setting terminal for the test mode    “L”: test mode (normally fixed at “H”)

45

EQSEL

I

Equalizer selection input terminal (fixed at “H”)

46

BEEP

O

Beep sound drive signal output terminal

47

MUT

O

Muting control signal output to the line muting circuit and power amplifier (IC701)
“H”: muting on

48

VOLCE

O

Chip enable signal output to the electrical volume (IC301)

49

VOLCKO

O

Serial data transfer clock signal output to the electrical volume (IC301)

50

VOLSO

O

Serial data output to the electrical volume (IC301)

51

TAPMUT

O

Tape muting on/off control signal output to the CXA2510Q (IC231)    “H”: tape muting on

52

RE IN0

I

Rotary encoder (RE701) input terminal

53

RE IN1

I

Rotary encoder (RE701) input terminal

54

DOLON

O

Dolby on/off control signal output to the CXA2510Q (IC231)    “H”: dolby on

55

DOLBC

I/O

56

AMSIN

I

Whether a music is present or not from CXA2510Q (IC231) is detected at auto music sensor
“L”: music is present, “H”: music is not present

57

DIMMER

O

Dimmer control signal output terminal

58

AD ON

O

Power supply on/off control signal output for the A/D converter    “L”: power on

59

RAMBU

I

60

RESET

I

System reset signal input from the reset signal generator (IC551) and reset switch (S551)
“L” is input for several 100 msec after power on, then it changes to “H”

61

SIRCS

I

Sircs signal input from the remote control receiver (IC702)

62

BU IN

I

Battery detect signal input terminal    “H”: battery on

63

DOORSW

I

Door open/close detect input    “L”: door close

64

ACCIN

I

Accessory detect signal input terminal    “L”: accessory on

65

NOSESW

I

Detects the removal of the attaching and removing type front panel block    “L”: attaching

66

TELMUT

I

Telephone muting signal input terminal    At input of “L”, the signal is attenuated by –20 dB

67

KEYACK

I

Input of acknowledge signal for the key entry    Acknowledge signal is input to accept function
and eject keys in the power off status    On at input of “L”

68

VDD

—

Power supply terminal (+5V)

69

X OUT

O

Main system clock output terminal (5 MHz)

70

X IN

I

Main system clock input terminal (5 MHz)

71

GND

—

Ground terminal

Internal RAM reset detection signal input from the RN5VD23AA (IC552)
Input terminal to check that RAM data are not destroyed due to low voltage
This checking is made within 100 msec after reset

Dolby B/C selection control in/out terminal
At initial mode: dolby B only/dolby B and C type selection input (“L” input: dolby B and C)
At normal mode: dolby type selection signal output    “L”: dolby B, “H”: dolby C
Not used this function (fixed at “H”)

– 37 –

72

XT OUT

O

Sub system clock output terminal (32.768 kHz)

73

XT IN

I

Sub system clock input terminal (32.768 kHz)

74

AVDD

—

Power supply terminal (+5V) (for A/D converter)

75

AVREF0

I

Reference voltage input terminal (+5V) (for A/D converter)

76

KEYIN0

I

77

KEYIN1

I

Key input terminal (A/D input)    

6, DSPL, LIST, 10, 9, 8, 7, 6, 5 keys input

(LSW800, LSW711, LSW712 and LSW715 to LSW720)

78

VSM

I

FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU11)

79

DSTSEL

I

80

RC IN0

I

Rotary remote commander shift key A/D input terminal

Key input terminal (A/D input)
OFF, SOURCE,  – 

= 0, MODE *, + + ), SOUND, SHIFT, 1, 2, 3, 4 keys input

(LSW700 to LSW710)

Destination setting terminal    US, Canadian models: fixed at center voltage,
E mode: frequency select switch (S101) input
“H”: MW 9k step or FM 50k step, “L”: MW 10k step or FM 200k step

*1  loading/tape operation motor control

             MODE

 TERMINAL

LM LOD (pin #§)

“L”

“H”

“L”

“H”

LM EJ (pin #¶)

“L”

“L”

“H”

“H”

STOP

LOADING/

FORWARD

EJECT/

REVERSE

BRAKE