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Motorola R-2002A Manual page 159

Communications system analyzer

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Service manual (220 pages)

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3-6

7-10. 13

12

22

PI

I

I

I

I

I

I

I

I

J

I

I

I

I

I

I

I

I

I

I

KYBD COL 0-3

KYBD ROW 0-4

IEEE OPT DET

CHAR GEN RST

4 MHz

osc

U27

Ul-5

:.~QRESS

BUS

J1

PROC

DATA BUS

AND

8FR

CONTROL BUS

E

l

CLK

I

I

SYNC

I

U28

ROM

15K X 8

U6-8. 10.

36

/

"

TPB

CHAR

GEN/PROC

SH

CHAR

ADRS

U16

17

ADRS

BFR

CHAR

CLK

GEN

U25. 29. 30

U22. 23

CHAR LATCH

?-BIT

LCH

U24

CHAR

ROW ADRS

ROM

IK X

P

U2·0

DOT CLOCK

SER

SHF

REG

U9

PIA

/

"

y

'

ADF~

J

DATA

U1<1 15. 21

BFR

'\

RAM

u

18. 19

1K

X

8

AF BUS EN 1

+

NUM

U11-1

3

AO-A

IS

00-07

HALT

NMI

RESET

IRQ

VMA

E

RtW

TP7

TPS

L_

'{__

CHAR GEN Z-AXIS

VERT CHAR SYNC

HORIZ CHAR SYNC

LINE 1

EXTAL

Pl

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852

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1-1

18

71-.86

91-98

65

58

69

70

87

88

90

21

19

20

44

67

Figure 15-1.

Microprocessor Module A9

Block Diagram

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