Sony RM-AV2000T, Service Manual

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 IC2 (µPD65012)

Pin No.

1 to 8

9 to11

12

13 to 20

21 to 28

29

30 to 32

33

34

35 to 38

39

40 to 42

43 to 50

51 to 52

53

54 to 59

60 to 63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

I/O

I/O

I

—

I

I

I

—

—

I

I

O

I/O

O

—

O

O

O

O

O

O

O

O

O

—

—

O

O

O

I

I

I

O

I

Pin Function

Data transfer between µPD65012 and microprocessor.

Control input from microprocessor.

GND terminal.

Key scan input.

Key scan input.

Not used.

GND terminal.

Positive power supply terminal.

Not used.

Remote control signal received input.

External memory control output.

Data transfer between µPD65012 and external memory.

Terminals to which external memory is connected. Lower address (ADO to AD1)

GND terminal.

Terminals to which external memory is connected. Lower address (AD2 to AD7)

Terminals to which external memory is connected. Upper address (AD8 to AD11)

Not used.

Remote control signal output.

Remote control signal receiver block ON/OFF output.

SRAM IC3 (W24257S) ADD and IC8 (LH5359PA) ADD.

SRAM IC3 (W24257S) ADE and IC8 (LH5359PA) ADE.

Selector SRAM IC3 (W242575S) or ROM IC8 (LH5359PA)

EL control output. (Dark)

GND terminal.

Positive power supply terminal.

Terminals to which external memory is connected. Upper address. (AD12)

EL control output. (Bright).

Buzzer

GA reset input.

GA clock input.

Not used.

Microprocessor interrupt output.

Address latch enable input.

Pin Name

ID7 to ID0

IENN/IWIN

IRDN.

GND

IP30 to IP37

IP40 to IP47

KINT

IP50 to IP52

GND

V

DD

KINT

IP53 to IP56

REC

RDO.WTO

OCE

OD0 to OD7

AD0 to AD1

GND

AD2 to AD7

AD8 to AD11

OUTP

RMO

OP60

OP61

OP62

OP63

OP64

GND

V

DD

OP65

OP66

OP67

CLR

ICLK

RES

INT

IALE