Amstrad GX4000 Service Manual
Amstrad GX4000 Service Manual.pdf is a scan of Amstrad plc's combined 464 PLUS / 6128 PLUS / GX4000 / MM 12 / CM 14 Service Manual, not a manual for the GX4000 alone. It has the same cover and contents as the copy at Amstrad 464 Plus / 6128 Plus / GX4000 Service Manual, but is a different scan: 95 PDF pages, with the large schematics and parts lists split across several images each, which makes component values easier to read. There is no text layer.
Contents
The full contents list, with printed page numbers, is on Amstrad 464 Plus / 6128 Plus / GX4000 Service Manual. The GX4000 section is printed pages 23–36:
- Technical specification and electrical adjustment (RF modulator coil) – 23
- Main PCB top view 24 and bottom view 25
- Gate array/output interface schematic 26, CPU/connection interface schematic 27, video conversion/memory schematic 28
- Power regulator schematic 29, RGB convertor schematic 30
- Cabinet exploded view and parts list 31
- Main PCB (France) top view 32 and bottom view 33, power regulator schematic (France) 34, output interface schematic (France) 35
- Electrical parts list 36
The France board has its own regulator and output interface drawings, so check which board is fitted before comparing it with the schematic on page 29 or 35.
What this manual does not contain
- No fault-finding flowcharts. Amstrad's note to engineers on page 2 refers to the RP11 diagnostic ROM cartridge and its manual instead.
- No coverage of the original CPC 464, 664 or 6128.
- No text layer.
Download: Amstrad GX4000 Service Manual.pdf