Sinclair ZX Spectrum 128 Manuals

Manuals and User Guides for Sinclair ZX Spectrum 128. We have 3 Sinclair ZX Spectrum 128 manuals available for free PDF download: Service Manual, Manual, User Manual

Sinclair ZX Spectrum 128 Service Manual (39 pages)

8-bit personal home computer

Brand: Sinclair | Category: Desktop | Size: 2.63 MB

Table of Contents
2
1 System Description

4
- Introduction
  4
- Architecture
  5
- Z80A Cpu
  5
- Memory Organisation
  7
  - Read/Write Operations and Bus Arbitration
    8
- Input/Output
  11
  - TV Picture Generation and Sound Output
    11
  - Keyboard Scanning
    12
- Tape Interface
  15
  - ULA Sound Output
    15
- Programmable Sound Generator
  16
- Rs232/MIDI Interface
  17
- Keypad Scanning
  17
  - Reset Protocol
    18
  - Bit Transfer Protocol
    19
- Power Supplies
  20
2 Disassembly/Assembly

22
- Disassembly
  22
- Assembly
  22
3 Setting up and System Test

24
- Setting up Instructions
  24
- System Test
  24
4 Fault Finding and Repair

25
- Introduction
  25
  - Test Equipment
    25
- Fault Diagnosis
  27
  - Techniques
    27
  - Power Supply Unit
    27
  - Initialisation
    27
  - Symptomatic Faults
    29
- Repair
  29
5 Parts List

33
- Introduction
  33
- Notes to Table 5.4
  33
- Case Assembly Components
  34
- Main PCB Components
  35
- Keypad PCB Components
  39

Sinclair ZX Spectrum 128 Manual (19 pages)

Brand: Sinclair | Category: Desktop | Size: 2.86 MB

Sinclair ZX Spectrum 128 User Manual (6 pages)

Brand: Sinclair | Category: Desktop | Size: 0.06 MB

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Sinclair ZX Spectrum 128 Manuals

Sinclair ZX Spectrum 128 Service Manual (39 pages)

Table of Contents

1 System Description

2 Disassembly/Assembly

3 Setting up and System Test

4 Fault Finding and Repair

5 Parts List

Sinclair ZX Spectrum 128 Manual (19 pages)

Table of Contents

Sinclair ZX Spectrum 128 User Manual (6 pages)

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