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PDF TRS-80 Data sheet ( Hoja de datos )
| Número de pieza | TRS-80 | |
| Descripción | Disk / Video Interface Manual | |
| Fabricantes | Radio Shack | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TRS-80 (archivo pdf) en la parte inferior de esta página. Total 70 Páginas | ||
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TRS-BO®
DISK/VIDEO INTERFACE
[AND EXPANSION FLOPPY DISK DRIVE UNIT)
Catalog Numbers: 26-3806/3807
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CUSTOM MANUFACTURED FOR RADIO SHACK. A DIVISION OF TANDY CORPORATION
Free Datasheet http://www.datasheetlist.com/
1 page  
FIGURE
NUMBER
C-lO
C-1l
C-12
C-13
C-14
C-15
C-16
c-n
C-18
C- 19
C-20
C-2l
C-22
C·23
C-24
C-25
C-26
C-27
C-28
C-29
C-30
C-31
C-32
C·33
C-34
C-35
C-36
C-37
C·38
C-39
CAD
C-41
C-42
C-43
C-44
CA5
CA6
C-47
DESCRIPTION
PAGE
NUMBER
Mounting the Pulse Motor K . 0
0 ••••••••••• 0 •••• 0
Tensioning the Belt. _
0 ••••••• 0
••
0 •• 0 ••
0 •••••
Confirmation of the Belt Gaps ... 0 0 ••••••••••• 0 •••••••••••••
c· 9
C· 9
C·10
Fixing the Track 00 Stopper .. 0
0• • • • • • •
0 •••••• 0
0 ••••••••• 0 •• 0 ••••
C-l0
Waveform of Index Pulse .. _ 0 ••••••••• 0
Waveform of Head Output . . .
. ... 0 0 • •
0 •••• 0
0 •••• 0
0 0 •••••
C-"
C-ll
Motor Speed Adjustment. 0
••• 0 ••••• 0
0 •• 0 ••
C- 12
Track 00 Adjustment . 0 ••••••• 0
0 ••••••••••••
C- 13
Interrupter Timing Chart
..... 0 0 •• 0 ••
C-14
Block Diagram 0.....
0 ••••• 0 •• 0 •••• 0 •••••••••• 0
c·n
Electrical Diagram ... 0 0 • • • • •
0 • • • • • • • • • • • • • • • • 0 •• 0
C-18
Pin Configuration of Control LSI.
0 •••• 0
0 ••••••• 0
C-19
Block Diagram of Control LSI.
0 •••••
C-20
Pin Configuration of Read LSI
0 0•
• •••• 0
0 •••• 0
•••••••
C-22
Block Diagram of Read LSI
0 0 •• 0 • •
0 •••• 0 ••••••••• 0
C-22
Block Diagram of Drive"Select Circuit. . . .
0 •• 0 • • • • •
C-230 • • • • •
Side Select Circuit ... 0 0 •••••••••••• 0 ••• 0 • • • • • • • • • • • • • • • •
C-230 • • 0 • • •
Head Positioning Circuit
C-240
0 ••••••• 0 •• 0 •
0 ••
••
•
0 •••••••
Timing Chart for the Direction and Step Signal ... 0
0 ••
0 ••• 0
0 •••••
C-25
Write Circuit and Erase Circuit ..... 0
Timing Chart for Write Circuit
0 ••••••• 0
0• • • • • •
• ••••• 0
C-26
C-26
Timing Chart for Erase Circuit
0_ •
0•
0 ••
C-27
Data Recording Procedure 0 •••••
C-27
Motor ON Circuit 0 ••• 0 ••
Index Circuit
Waveform of TP2-4 Pin . 0
Track 00 Detection Circuit
Waveform of TP2-2Pin .
0
C-28
C-29
C-29
C-29
C-30
Write Protect Circuit .... 0
C-3l
Read Amplifier Circuit .. 0 ••••••• 0
••••••• 0 0 •
0 •••• 0
C·31
Timing Chart for Read Amplifier Circuit _
.
C-32
Circuit Diagram 0..... • •
0 •••• 0 ••••••• 0
C-33
Test System Hook-up
. 0 ••••• 0 •••• 0 •••••
C-36
Exploded View of Main Unit
...
0 •••• 0
• 0 ••• 0
CA7
Exploded View of Clamp Base BK and Carrier A ..
0•
0 ••••• 0 0 •••••••
C-48
Exploded View of Pulse Motor BK. .
0• • • • •
0 • • • • ••
o. 0 ••••••
C·49
PoCo Board. . . . .
0•
0 •• 0
0_ •
0 ••• 0
0 •••• 0
C-50
Special Meintenance Tool. 0
C-57
Free Datasheet http://www.datasheetlist.com/
5 Page 
2/Disassembly Instructions
Top Case
1. 0 isconnect the cables from the unit.
2. Remove the four screws (A) on the left and right of the unit.
3. Remove the top case by sliding it toward the rear of the unit.
Figure 2-1. Top Case Removal
Main P.C. Board
1. Disconnect the two connectors marked eN1 and CN4 on the main P.C. Board.
2. Remove the four screws (B).
3. Take out the main P,C. Board. Be careful not to damage the connectors and switch inside on the rear panel.
4. Disconnect the connector marked CN2 and ground lead.
Power Supply P.C. Board
1. Disconnect all the connectors from the power supply P.C. Board.
2. Remove the two screws {C) and take out the power supply P.C. Board.
2-1
Figure 2-2. Removal of P.C. Boards
Free Datasheet http://www.datasheetlist.com/
11 Page | ||
| Páginas | Total 70 Páginas | |
| PDF Descargar | [ Datasheet TRS-80.PDF ] | |
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