DOWNLOAD Sony XR-1300R / XR-2300R / XR-C2300R Service Manual ↓ Size: 2.51 MB | Pages: 37 in PDF or view online for FREE

25

•

Pin No.

Pin Name

I/O

Description

1

SEEKOUT

O

Seek control signal output to the FM/AM tuner unit (TU100)
AM mode: Used for IF count output/SD output request/AGC cut at SEEK or BTM
FM mode: Used for SD speed up at SEEK, BTM, or AF
“L” is output at tuner off

2

AFSEEK

O

PLL low-pass filter time constant selection signal output at AF SEEK
“H” is output when AF SEEK    Not used (open)

3

NC

O

Not used (open)

4

ST-IND

I/O

FM stereo broadcasting detection signal input from the FM/AM tuner unit (TU100), or forced
monaural control signal output to the FM/AM tuner unit (TU100)
“L” is input in the FM stereo mode, or “L” is output in the forced monaural mode

5

TUMUTE

O

Muting on/off control signal output of the FM and AM tuner signal    “H”: muting on

6

FM-ON

O

FM system power supply on/off control signal output terminal
“L”: AM power on, “H”: FM power on

7

TU-ON

O

Tuner system power supply on/off control signal output terminal    “H”: tuner power on

8

VCC

—

Power supply terminal (+5V)

9

NC

O

Not used (open)

10

BUSON

O

Bus on/off control signal output to the SONY bus interface (IC800)    “L”: bus on
Used for the XR-C2300R only

11

SYSRST

O

Reset signal output to the SONY bus interface (IC800)    “L”: reset
Used for the XR-C2300R only

12

NOSESW

I

Front panel block remove/attach detection signal input terminal
“L”: front panel is attached

13

LCDSO

O

Serial data output to the liquid crystal display driver (IC900)

14

LCD CKO

O

Serial data transfer clock signal output to the liquid crystal display driver (IC900)

15

BEEP

O

Beep sound drive signal output terminal

16

SD-IN

I

Signal detector input from the FM/AM tuner unit (TU100)
Stop level for SEEK, SCAN, etc. is determined    SD is present at input of “H”

17

UNISI

I

Serial data input from the SONY bus interface (IC800)    Used for the XR-C2300R only

18

UNISO

O

Serial data output to the SONY bus interface (IC800)    Used for the XR-C2300R only

19

UNICKO

O

Serial data transfer clock signal output to the SONY bus interface (IC800)
Used for the XR-C2300R only

20

VOL-CE

O

Chip enable signal output to the electrical volume (IC400)

21

VOL-SO

O

Serial data output to the electrical volume (IC400)

22

VOL-CKO

O

Serial data transfer clock signal output to the electrical volume (IC400)

23, 24

NC

O

Not used (open)

25

PLLSI

I

PLL serial data input from the FM/AM PLL (IC130)

26

PLLSO

O

PLL serial data output to the FM/AM PLL (IC130)

27

PLLCKO

O

PLL serial data transfer clock signal output to the FM/AM PLL (IC130)

28

PLLCE

O

PLL chip enable signal output to the FM/AM PLL (IC130)    “H” active

29

ILL-ON

O

Power on/off control signal output of the illumination LED and liquid crystal display driver
(IC900)    “H”: power on

30, 31

NC

O

Not used (open)

32

NOISE-ON

O

Discharge control signal output for the noise detection circuit    “H”: discharge

33

VSS

—

Ground terminal

34

C

—

Connected to coupling capacitor for the power supply

35

AD-ON

O

A/D converter power control signal output terminal
When the KEYACK (pin uh) that controls reference voltage power for key A/D conversion input
is active, “L” is output from this terminal to enable the input

26

Pin No.

Pin Name

I/O

Description

36

RE-IN0

I

37

RE-IN1

I

38

DVCC

—

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

39

DVSS

—

Ground terminal (for D/A converter)

40, 41

NC

O

Not used (open)

42

AVCC

—

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

43

AVRH

I

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

44

AVRL

I

Reference voltage (0V) input terminal (for A/D converter)

45

AVSS

—

Ground terminal (for A/D converter)

46

KEYIN0

I

Key input terminal (A/D input) (S901 to S908)
OFF, 3, 4, 5, 6, D-BASS, AF, TA keys input

47

KEYIN1

I

48

RC-IN0

O

Not used (open)    Rotary remote commander key input terminal (A/D input)

49

DSTSEL

I

Destination setting terminal (fixed at “H”)

50

NOISE-DET

I

Noise level detection signal input at SEEK mode (A/D input)

51

NC

O

Not used (open)

52

MTP

I

Multi-path detection signal input from the RDS decoder (IC200)

53

VSM

I

FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU100)
(A/D input)

54

VCC

—

Power supply terminal (+5V)

55

RAMBU

I

Internal RAM reset detection signal input terminal
Input terminal to check that RAM data are not destroyed due to low voltage
This checking is made within 100 msec after reset    Fixed at “L” in this set

56

POW-SEL

I

Power select input terminal       Fixed at “H” in this set

57

NC

O

Not used (open)

58

TESTIN

I

Setting terminal for the test mode    “L”: test mode, Normally: fixed at “H”

59, 60

NC

O

Not used (open)

61, 62

NC

O

Not used

63

VSS

—

Ground terminal

64

NC

O

Not used (open)

65

MUTE

O

Audio line muting on/off control signal output terminal    “H”: muting on

66, 67

NC

O

Not used (open)

68

AMPMUTE

O

Muting on/off control signal output to the power amplifier (IC500)    “L”: muting on

69

FLASH-W

I

Internal flash memory data write mode detection signal input terminal    “L”: data write mode
Not used (fixed at “H” in this set)

70

I2C-SIO

I/O

Two-way data bus with the RDS decoder (IC200)

71

I2C-CKO

O

Bus clock signal output to the RDS decoder (IC200)

72

RC-IN1

O

Not used (open)    Rotary remote commander shift key input terminal

73

X1A

O

Sub system clock output terminal (32.768 kHz)

74

X0A

I

Sub system clock input terminal (32.768 kHz)

75

DAVN

I

Data transmit completed detect signal input from the RDS decoder (IC200)    “H” active

76

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 “H”

Dial pulse input of the rotary encoder (RE900)
 (for VOLUME/BASS/TREBLE/BALANCE/FADER control)

Key input terminal (A/D input) (S909 to S920)
2 (XR-1300R), 2 SHUF (XR-C2300R), 1 (XR-1300R), 1 REP (XR-C2300R), ENTER, MODE,
DSPL PTY, SEEK +/– (XR-1300R), SEEK/AMS  + > M  – . m  (XR-C2300R),
PRST +/– (XR-1300R), PRST DISC +/– (XR-C2300R), TUNER (XR-1300R),
SOURCE (XR-C2300R), SOUND, MENU keys input

27

Pin No.

Pin Name

I/O

Description

77

BU-IN

I

Battery detect signal input from the SONY bus interface (IC800) and battery detect circuit
“L” is input at low voltage    IC800: Used for the XR-C2300R only

78

ILL IN

O

Not used

79

TELATT

I

Telephone muting signal input terminal    At input of “H”, the signal is attenuated by –20 dB
Not used

80

LCDCE

I

Chip enable signal output to the liquid crystal display driver (IC900)    “H” active

81

ACC IN

I

Accessory detect signal input terminal    “L”: accessory on

82 to 85

NC

O

Not used (open)

86

HSTX

I

Hardware standby input terminal    “L”: hardware standby mode    Reset signal input in this set

87

MD2

I

Setting terminal for the CPU operational mode (fixed at “L” in this set)

88, 89

MD1, MD0

I

Setting terminal for the CPU operational mode (fixed at “H” in this set)

90

RSTX

I

System reset signal input from the reset signal generator (IC2) and reset switch (S2)
“L”: reset    “L” is input for several 100 msec after power on, then it changes to “H”

91

VSS

—

Ground terminal

92

X0

I

Main system clock input terminal (3.68 MHz)

93

X1

O

Main system clock output terminal (3.68 MHz)

94

VCC

—

Power supply terminal (+5V)

95 to 104

NC

O

Not used (open)

105

TAPE IN

I

Tape in detection switch (S903) input terminal    “L”: tape in

106

FF-REW IN

I

FF/REW detection switch (S902) input terminal    “L”: FF/REW mode

107

N/R

I

Tape direction switch (S903) input terminal    “L”: reverse direction    “H”: forward direction

108 to 110

NC

O

Not used (open)

111

CM ON

O

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

112 to 116

NC

O

Not used (open)

117

TAPMUTE

O

Tape muting on/off control signal output terminal    “H”: muting on
Active at ATA, FF/REW mode    Not used (open)

118

AMPON

O

Standby on/off control signal output to the power amplifier (IC500)
“L”: standby mode, “H”: amp on

119

VSS

—

Ground terminal

120

PWON

O

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

28

• Items marked “*” are not stocked since they

are seldom required for routine service. Some
delay should be anticipated when ordering
these items.

• The mechanical parts with no reference num-

ber in the exploded views are not supplied.

• Hardware (# mark) list and accessories and

packing materials are given in the last of the
electrical parts list.

NOTE:

• -XX and -X mean standardized parts, so they

may have some difference from the original
one.

• Color Indication of Appearance Parts

Example:
KNOB, BALANCE (WHITE) . . . (RED)

↑

↑

Parts Color Cabinet's Color

Ref. No.

Part No.

Description

Remark

Ref. No.

Part No.

Description

Remark

1

3-041-580-01 PANEL, SUB

2

X-3367-636-1 LOCK ASSY

3

3-041-581-01 DOOR, CASSETTE

4

3-044-125-01 SPRING, TORSION

5

3-376-464-11 SCREW (+PTT 2.6X6), GROUND POINT

6

3-029-047-01 PLATE (C), GROUND

* 7

X-3378-167-1 COVER ASSY

* 8

3-041-577-01 HEAT SINK (1300R)

* 8

3-041-577-11 HEAT SINK (C2300R)

9

1-776-527-31 CORD (WITH CONNECTOR) (ISO) (POWER)

* 10

3-041-578-01 BRACKET (IC)

* 11

3-046-339-01 CUSHION (U)

* 12

A-3326-108-A MAIN BOARD, COMPLETE (C2300R)

* 12

A-3326-391-A MAIN BOARD, COMPLETE (1300R)

* 13

3-041-575-01 CHASSIS

14

3-041-576-01 SHEET, INSULATING

15

3-041-599-01 COLLAR

F601

1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) (10A)

TU100

1-693-440-12 TUNER UNIT (FM/AM)

#2

#3

#3

#3

(C2300R)

(C2300R)

F601

#2

#2

TU100

#1

Front panel section

MG-36SZ10-32