Aiwa AM-HX70, Service Manual

– 

16

 –

T-10

57

A10

O

Address output for external DRAM (Not used).

(Make sure to leave the pin open when external DRAM is not in use).

R-10

56

A07

O

Address output for external DRAM (Not used).

(Make sure to leave the pin open when external DRAM is not in use).

U-11

61

IXOE

O

Not used.

T-11

60

XRAS

O

RAS output for external DRAM (Not used).

(Make sure to leave the pin open when external DRAM is not in use).

R-11

59

A09

O

Address output for external DRAM (Not used).

(Make sure to leave the pin open when external DRAM is not in use).

U-12

62

IXWE

O

Not used.

T-12

63

XCAS

O

CAS output for external DRAM (Not used).

(Make sure to leave the pin open when external DRAM is not in use).

R-12

64

D1

I/O

Data input/output for external DRAM (Not used).

(Make sure to leave the pin open when external DRAM is not in use).

U-13

65

D2

I/O

Data input/output for external DRAM (Not used).

(Make sure to leave the pin open when external DRAM is not in use).

T-13

66

D0

I/O

Data input/output for external DRAM (Not used).

(Make sure to leave the pin open when external DRAM is not in use).

R-13

68

VDC3

–

VDD for 1.8V internal logic.

U-14

69

VSC3

–

VSS for 1.8V internal logic.

T-14

67

D3

I/O

Data input/output for external DRAM (Not used).

(Make sure to leave the pin open when external DRAM is not in use).

R-14

146

DV

DD

1

–

VDD for internal 16Mbit DRAM (2.4V).

U-17

–

NC

–

Not connected.

U-16

–

NC

–

Not connected.

U-15

71

XOE

O

Output-enabling output for external DRAM (Not used).

(Make sure to leave the pin open when external DRAM is not in use).

T-17

–

NC

–

Not connected.

T-16

–

NC

–

Not connected.

T-15

70

A11

O

Not used.

R-17

145

DV

SS

1

–

GND for built-in 16Mbit DRAM.

R-16

72

XWE

O

Write-enabling output for external DRAM (Not used).

(Make sure to leave the pin open when external DRAM is not in use).

R-15

–

NC

–

Not connected.

P-17

75

ASYI

I

Playback EFM comparator slice level input.

P-16

74

ASYO

O

Playback EFM binary signal output.

P-15

73

MVCI

I

Clock input from external VCO (Not used).

N-17

79

AVS1

–

Analog GND.

N-16

77

BIAS

I

Playback EFM comparator bias current input.

N-15

76

AVD1

–

Analog power supply (2.4V).

M-17

81

FILI

I

Filter input for playback EFM master PLL.

Pin No.

Circuit Pin No.

Pin Name

I/O

Description