Amstrad PCW 9512+ Service Manual

The PCW9512+ Personal Computer Word Processor Service Manual is Amstrad plc's own service manual for the PCW 9512+. 30 pages. No text layer, so values must be read from the page images.

Contents

Amstrad's own contents list, with printed page numbers:

• Technical specification — 2; safety tests — 2
• Alignment instructions — 3
• Monitor exploded view and parts list — 4 & 5
• Printer exploded view and parts list — 6
• Keyboard PCB, exploded view and parts list — 7
• Paper feed exploded view and parts list — 8; tractor — 9; paper end sensor — 10; carrier frame — 11
• Print head and hammer drive exploded view and parts list — 12
• Ribbon drive exploded view and parts list — 13; wheel set release — 14; ribbon cassette base — 14
• Chassis and carrier drive exploded view and parts list — 15
• Monitor/CRT PCB — 18 & 19
• Printer / cover / open PCB, top and bottom views — 20
• Printer schematic diagram — 21
• Keyboard schematic diagram — 22 & 23
• Printer motor driver schematic diagram — 24
• CPU schematic diagram — 25; CPU-A — 26; CPU-B — 27; CPU-C — 28 & 29
• Monitor 1 schematic diagram — 30 & 31; Monitor 2 — 32 & 33
• Electrical parts list — 34 & 35

What it settles

Technical specification:

• 512K RAM; one 3.5-inch 720K drive with the facility to add a second
• Paper-white 12-inch monochrome screen showing 90 columns × 32 lines
• Full-size PC-style keyboard, 82 keys, with adjustable legs
• Software: LocoScript 2, Locomail, Locospell, CP/M Plus, Mallard BASIC, GSX and Dr Logo
• External connector: parallel printer port
• Daisywheel printer: bi-directional printing at 20 cps; automatic paper loading by bail bar action; daisywheels in 10, 12 and 15 cpi; a 30-sheet automatic sheet feeder and a removable tractor feed supplied as standard

The manual also specifies the Canon BJ-10e bubble jet printer as an option: 83 cps at 10 cpi, 100 cps at 12 cpi and 142 cps at 17 cpi in draft; 360 × 360 dpi high quality and 180 × 360 dpi draft; paper 52–90 gsm through the auto sheet feeder or 52–105 gsm manually; Courier and Prestige Elite typefaces; a 64-nozzle head; IBM Proprinter X24E emulation; Centronics interface; 310 × 216 × 48 mm and about 1.8 kg, with an AC adaptor of about 0.6 kg supplying AC 240 V 50 Hz, 25 W, and an optional NiCd battery pack.

The daisywheel mechanism is documented part by part — paper feed, tractor, paper end sensor, carrier frame, print head and hammer drive, ribbon drive, wheel set release, ribbon cassette base, and chassis and carrier drive each have their own exploded view and parts list. This is the most thoroughly documented printer mechanism in the Amstrad material hosted here.

The CPU board is split across four schematics — CPU, CPU-A, CPU-B and CPU-C — and the monitor across two. Trace a fault to the right sheet before chasing signals.

Safety test figures: flash test at 4 kV between the mains live and neutral joined together and all accessible exterior metal; insulation resistance showing at least 4 MΩ.

What this manual does not contain

• No floppy drive alignment or service data.
• No fault-symptom table and no diagnostic flowchart.
• No memory map or port list. For those see Amstrad PCW Hardware Reference (John Elliott).
• No coverage of the PCW 9512 (without the plus) or of the 8000-series machines.
• No text layer, so nothing can be searched.

Download here: Amstrad PCW 9512 Plus Service Manual.pdf

Related pages

• Amstrad PCW 9256 Service Manual · Amstrad PCW 8256 / PCW 8512 Service Manual · Amstrad PCW Hardware Reference (John Elliott)