OTRONA ATTACHE Manuals

Manuals and User Guides for OTRONA ATTACHE. We have 2 OTRONA ATTACHE manuals available for free PDF download: Technical Manual, Service Manual

OTRONA ATTACHE Technical Manual

OTRONA ATTACHE Technical Manual (208 pages)

Brand: OTRONA | Category: Laptop | Size: 10 MB

Table of Contents

Table of Contents
5
Attache System
10
Processor Board
13
- Processor
  15
- Memory
  15
- I/O Rtc
  15
- Graphics
  15
- Serial
  15
- Expansion O~Ion
  17
Display
17
- Alphanumeric Display
  17
- Graphic Display
  18
- Standard Format
  18
Keyboard
19
- Multi-Function Keys
  19
Power Supply
20
- Setting the Voltage
  20
System Block Diagram
23
Logic Overview
25
Processor Block Diagram
27
- Central Processing Unit
  28
- Pin Functions
  28
- Pin Functions
  29
- DMA Operation
  30
- I/O Selection
  31
- Expansion Connector
  31
Processor
27
Memory
32
Memory Block Diagram
32
RAS/CAS Schematic
32
- Addressing RAM
  33
- Writing or Reading Data
  35
- Generating RAS/CAS
  36
- Memory Mapping
  37
- Erasable Programmable Read-Only Memory
  38
Serial Block Diagram
39
- Clock
  40
- Reset
  40
- Serial Input/Output Controller
  41
- Pin Functions
  41
- SIO Operation
  42
- The Ports
  42
- Counter Timer Circuit
  47
- Pin Functions
  47
- Interrupts
  48
Serial
39
Daisy Chained Interrupts
49
Display
50
- Cathode Ray Tube
  52
CRT Screen
52
- CRT Controller
  53
- Pin Functions
  53
- Timing
  54
Video Character
54
Display Timing
56
- Reading or Writing to the Screen
  57
- Selecting the Address
  57
Addressing the Display
57
- Writing the Data on the Screen
  59
- Attributes
  60
- Graphics
  61
- Parallel Input/Output Controller
  64
- Pin Functions
  64
- Sound Effects Generator
  65
Power .Supply
65
Floppy Block Diagram
68
Write Precomt:ensation
70
Clock and Data Timing
72
Data Separator
73
Diskette Format
75
Diskette Track Format
76
- Introduction
  79
- AC Power Module
  79
Power Cords
79
- Control Power Regulator
  81
- Pulse Width Modulator
  81
- PWM Dead Time
  82
- Over-Current and Soft Start
  83
- High Voltage Driver Board
  84
- Flyback Transformer
  85
- Output Supply Rectifiers and Filters
  85
- Power Okay Sensor
  86
- Voltage Monitor
  87
- Fan Driver
  87
- Connectors
  87
Keyboard
88
Keyboard Block Diagram
88
- Introduction
  89
Keyboard Grid
89
- Basic Keyboard Logic
  90
- Additional Circuitry Functions
  91
- Keyboard Layout
  91
- ASCII Character Codes
  92
ASCII Chart
92
Display Module
93
- Horizontal
  93
Display Module Block Diagram
93
- Vertical
  95
- Video
  95
- Crt
  96
Diskette Drive
97
Diskette Drive Block Diagram
98
- Head Movement
  99
- Writing
  100
Write Timing
100
- Reading
  102
Read Signals
102
- Turning the Diskette
  103
CP/M Memory Map
107
CP/M Memory Locations
107
Low Memory Map
108
Iobyte
108
- Low Memory Maps
  108
File Control Block
109
- Terminal Emulation
  111
- Monitor Mode - Diagnostics
  114
Monitor Mode Diagnostics
114
- Generate Display Pattern
  114
- Display RAM Test
  114
- Jump
  114
- Input Test
  114
Keyboard Test
114
- Loop Tests
  114
- Output Test
  114
- Format Diskette Test
  114
- Read a Sector from a Disk - V
  120
- Write a Sector to a Disk
  121
- I/O Port Transmit
  121
- I/O Port Receive
  121
- Cboot
  124
- Blocking/Deblocking
  125
- Physical Read/Write
  125
Disk Read Operation
127
Input/Output Driver
128
Additional Functions
128
Programming I/O Devices
129
- Progranuning the SIO Baud Rate
  130
Programming Baud Rates
130
- Accessing the Display Driver
  131
Display Driver
130
I/O Ports
132
- Character Transmission
  135
- Attribute Transmission
  136
- Display Control Parameters Transmission
  136
- Graphic Data Transmission
  137
Writing to the Display
137
- Cursor Control Escape Commands
  139
- Clear and Delete Escape Commands
  139
- Insertion Escape Commands
  140
- Screen Parameter Escape Commands
  140
Attache Control Character Codes
143
- Screen Attribute Codes
  144
Coding Screen Attributes
145
- Attache Character Sets
  146
Character Sets
146
- Character Size Selection
  147
- CMOS Memory Allocation
  148
- Programming Sounds or Alanns
  149
Baud Rates
149
- Attache Clock
  151
- Accessing the Clock
  151
- Interrupt Structure
  152
  - Introduction
    152
  - I/O Device Interrupts
    153
  - 60 Hz Interrupts
    153
- Programming Interrupt Driven I/O
  154
- Generation of Keyboard Character Code
  157
  - Physical Keyboard Layout
    157
  - ASCII Translation
    157
  - Determining the Character Code
    159
  - Character Codes as Stored in BIOS
    161
  - Changing a Keycode in Memory
    162
- Valet
  163
Appendixes
164
- Processor
  165

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OTRONA ATTACHE Service Manual

OTRONA ATTACHE Service Manual (79 pages)

Portable Computer

Brand: OTRONA | Category: Desktop | Size: 3 MB

Table of Contents

Table of Contents
4
Introduction
6
Using this Guide
6
1 Service Overview

8
- General Maintenance Procedures
  9
- Environmental Considerations
  9
2 Diagnostic Programs

10
- Running the Diagnostic Programs
  11
- Individual Tests
  12
  - G Display Pattern Test
    12
  - H - Display RAM Test
    12
  - I - Input Test
    13
  - J - Jump to Address Test
    14
  - K - Keyboard Test
    14
  - L - Continuous Loop Tests
    15
  - Map Test
    15
  - O - Output Test
    16
  - Format Test
    16
  - Q - CMOS RAM Test
    17
  - R Main RAM Test
    18
  - S Select Output Tests
    18
  - T Real-Time Clock Test
    19
  - U United Tests
    20
  - Read Disk Sector Test
    20
  - W - Write Disk Sector Test
    22
  - I/O Port Transmit Test
    23
  - Y - I/O Port Receive Test
    24
  - Z - Automatic Disk Test
    25
  - Status Register ID Tables
    27
3 Module Removal and Installation

30
- Cabinet
  31
- Processor Board
  35
- Power Supply
  37
- CRT Display
  39
- Keyboard
  41
- Disk Drives
  41
- Clock Battery
  45
4 Service Maps

46
- How to Use the Service Maps
  47
- Individual Maps
  48
  - Preliminary Problem Analysis
    48
  - Power up Not Normal
    50
  - Diagnostic Test Failure
    54
  - Unit Does Not Boot
    59
  - CRT Display Not Functioning
    61
  - Keyboard Not Functioning
    64
  - Sound Not Functioning
    66
  - Clock Not Functioning
    68
  - Disk Drives Not Functioning
    70
  - Problem Resolution
    74
- Index
  75

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