Radio Shack ET-3601 Handbücher

Bedienungsanleitungen und Benutzerhandbücher für Motherboards Radio Shack ET-3601.
Wir stellen 1 PDF-Handbücher Radio Shack ET-3601 zum kostenlosen herunterladen nach Dokumenttypen zur Verfügung Technical Information

Radio shack ET-3601 Technical Information (116 Seiten)

Marke: Radio-shack | Kategorie: Motherboards | Größe: 8.89 MB |

Englisch

Inhaltsverzeichnis

Catalog No 26-2103

1

One Tandy Center

2

Fort Worth, Texas 76102

2

Division

3

Corporation

3

Contents

6

Introduction

8

Block Diagram

10

---{>

11

Video Divider Chain

12

FIGURE 2. Level I Memory Map

14

System Clock

15

WAIT, INT*

16

Address Lines

17

Z53, pin

18

CPU Control Group

19

------~I

21

Programming

22

ROM Decoding

22

Video Display RAM Select

23

4000 address cause

24

3 went high. Since pin 2

25

Waveform

26

Refreshing

27

Input Conditioning

29

= 887.041 kHz. What did

30

"lEA

30

---'

31

'

32

Video RAM Addressing

33

L). Each

34

Video RAMs

35

Video Processing

35

LEFT I RIGHT

38

Register

39

Generator

40

0 R gate. The

41

'"

42

5.0 VOLTS

43

T TOP OF SCREEN

44

Keyboard

45

Output Port

45

Cassette

46

Motor Control

46

FIGURE 10. Idealized CASSOUT

48

Cassette Audio Input

49

Processing (Idealized)

50

244. 244, pin 12

51

-"O

52

-"0"---1

52

ACAdapter

53

54

Volt Supply

55

Level II

56

Troubleshooting

58

Disassembly

59

.1'

60

And Adjustments

61

FIGURE 15. Logic

62

Section Isolation

63

Signal Condition

65

FIGURE 17. CPU Flowchart

66

Video Divider

69

Video RAM

71

Address Decoder

73

Problems

74

Audio Processing

74

Z59. Since

75

Z59, pin 14 could

75

12.00 volts and

76

5.00 volts

76

Horizontal

77

Vertical

77

Adjustment

77

It Doesn't Work

77

Hints, Ideas, Suggestions

78

And"""

78

WhatNow?

78

A solder

80

'93

81

Outside World

85

Memory Mapped

87

External Device

87

AsD

88

A9D

88

K1 will be

89

OUT*D

90

Expansion

91

Explanation of

91

: : : : : : : : ============

92

5 volts

93

LEVEL I Logic

95

4KRAMKit

98

23 shows

101

"0"

102

National

103

MM2316 ROMs

103

Z34, and vice versa

103

'-A7~---~-V-,-'

106

'H~--'-j8

106

(for CPU Boards, Level II

108

- Alternate Version)

108

0'11~0~

112

------.....

115

Radio Shack Geräte