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AMSTRAD CPC6128 User Manual

AMSTRAD CPC6128
31 pages
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AMSTRAD CPC6128 Specifications

General IconGeneral
ManufacturerAmstrad
TypeHome computer
Release year1985
ProcessorZilog Z80A
Processor Speed4 MHz
RAM128 KB
ROM48 KB
SoundGeneral Instrument AY-3-8912
InputKeyboard
Graphics Modes160×200, 320×200, 640×200
Storage3-inch floppy disk drive
DisplayOptional external monitor
PortsJoystick
Power SupplyInternal
Dimensions420 mm (W) x 150 mm (H) x 370 mm (D)
GraphicsMotorola 6845 CRTC
Operating SystemAMSDOS, CP/M

Summary

Safety Test

Flash Test

Test at 3kV between live/neutral and exterior metal points for safety.

Insulation Resistance Test

Test for >= 4 Mohm between live/neutral and exterior metal points.

CPC6128 Basic Hardware Analysis

Function Diagrams

Software Error Troubleshooting

Soft Error Detection and Correction

Procedures to resolve soft errors caused by noise or timing issues.

Write Error Handling

Steps to correct write errors and identify the source.

Seek Error Resolution

Troubleshooting steps for step motor or carriage torque issues.

Diagnostic Flow Chart

Disk Drive Alignment Checks

Disk Drive Alignment Procedures

Check Positioning

Procedure to verify and adjust the disk drive's head positioning.

GT65 Monitor - Alignment Instructions

CTM644 Monitor - Alignment Instructions

CTM644 Monitor - Voltage Specifications

Disc Drive Mechanism and Replacements

Technical Specifications

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