ICF-CD2000, ICF-CD2000S - Sony Audio Service Manual (repair manual). Page 22

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Pin No.

Pin Name

I/O

Description

61

CE2

I

Setting terminal for the model    Not used

62

CE3

I

Setting terminal for the model     “L”: ICF-CD2000, “H”: ICF-CD2000S

63

J

I

Setting terminal for the model      “H”: E, Singapore, Tourist model

64 to 67

COM0 to COM3

O

Common drive signal output to the liquid crystal display (LCD401)

68

VSS2

—

Ground terminal

69

VDD2

—

Power supply terminal (+2.8V)

70

CD ON

O

Power on/off control signal output for the CD mechanism section    “L”: power on

71

TU ON

O

Power on/off control signal output for the tuner section    “L”: power on

72

A MUT

O

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

73

LED ON

O

LED drive signal output of the liquid crystal display (LCD401) back light (D405 to D408) 
indicator

74

SL –

O

Sled servo drive signal output to the LA9251M (IC501)

75

SL +

O

Sled servo drive signal output to the LA9251M (IC501)

76

RCK

O

Serial data latch pulse signal output to the CD control signal counter (IC404)

77

RWC

O

At tuner mode : PLL serial data latch pulse signal output to the FM/AM PLL (IC3)
At CD mode : Reading/writing control signal output to the LC78626KE (IC502)
                       (shumitt output)

78

COIN

I

At tuner mode : PLL serial data input from the FM/AM PLL (IC3)
At CD mode : Command serial data input from the LC78626KE (IC502)

79

SQOUT

O

At tuner mode : PLL serial data output to the FM/AM PLL (IC3)
At CD mode : Subcode Q data output to the LC78626KE (IC502)

80

CQCK

O

At tuner mode : PLL serial data transfer clock signal output to the FM/AM PLL (IC3)
At CD mode : Subcode Q data reading clock signal output to the LC78626KE (IC502)