Changes
Total consumption 1200 2400 mA
==SOFTWARE SPECIFICATION==
The computers are shipped with a cartridge fitted in the cartridge slot. Disk based software is supplied with the 6128 Plus by Amstrad. There will be no welcome tape or disk.
===6128===
1M ROM cartridge (i.e. 128k x 8) Combined firmware, BASIC and Disk ROM, incorporating free game.
*Page 0: Firmware
*Page 1: BASIC
*Page 2: Game
*Page 3: Disk
*Pages 4-6: Game
*Page 7: BASIC
One 3" disk with CP/M Plus and utilities only.
===464===
1M ROM cartridge as for 6128
==MECHANICAL SPECIFICATION==
Both models in the new Arnold V range will share a common plastic cabinet. This will be a two-piece design, i.e. upper and lower cabinet halves. The name Amstrad will be moulded in to the top cabinet.
The different variants will be handled by breakout sections or tool inserts as necessary. The 464 version will have the model name "464 Plus" moulded into the cassette door, and the "6128" version will have the model name "6128 Plus" moulded into the upper casework above the disk drive, in the areas of plastic which does not exist for the 464 version.
The monitors will have international symbols for brightness, contrast, volume and vertical hold. Apart from these items, there will be no moulded lettering, and moving cores must be kept to a minimum. The casework will provide both aesthetic and structural functions. Other moulded parts will be needed for the ROM cartridge, cartridge slot, cassette door, and power switch. These should be in the same material and the same colour as the main casework mouldings.
The power switch will be connected to a "bolt" which engages in the side of the ROM cartridge when the power is on, so that the cartridge cannot be inserted or withdrawn while power is applied to the machine.
The main PCB, disk drive (6128) and cassette mechanism (464) will be mounted to the lower cabinet.
Ideally, the keyboard should be similarly mounted on the lower cabinet, to improve serviceability, as should as many minor components as possible. A slimmer cassette mechanism must be used, to keep the height of the computer low. The cassette mechanism electronics will be mounted below the cassette deck, as with the old version.
==DISPLAY DEVICES==
With the CPC range, the display device, i.e. Monitor, Modulator/power supply, or peritel adaptor also supplies power to the computer. In view of the fact that RFI prevention will be important in Europe after 1992, all display devices should be to Class 1 construction, i.e. earthed, so that it is easier to prevent the computer radiating, and should themselves be designed to meet the RFI standard EN55022 (CISPR22).
The monitors should operate off both 220V and 240V supplies without modification.
The relevant safety standard for this product is BS415 (IEC65).
===MONITORS===
The new Arnold V range will always be sold with a monitor.
The existing GTM65 and CTM640 monitors have been restyled in the same colour as the main cabinet.
The monitor rear cabinet material must be to BS415 Clause 20.2
The MM12 monochrome incorporates a 12" paper white tube, similar to that used on the PCW9512.
The input will be the same as the earlier GTM65 versions, i.e. impedance 470 ohms to 0V, analogue voltage input which is linear between 0.8V (Black) and 1.75V (Peak white).
The CM14 colour monitor needs to handle a sixteen level input on each of RGB. The new monitor must present an input impedance of 100 ohms to 0V, and accept an analogue input current of 0-10mA for each gun. The levels shall be defined such that 0mA is black and 10mA is full on. The response must be linear between these limits.
The monitors also incorporate stereo speakers, amplifiers, and a volume control. There is no 12V D.C. output.
===Modulator/Power Supply units===
The existing MP2 can be used with the new Arnold V range. However, it would be better to produce a new version following the RFI guidelines at the start of this section, and preferably including a sound modulator.
The input circuit of the Peritel adaptor will probably need to be redesigned to handle the new analogue video signals. It should also have the sound channels added.
==NATIONAL VARIANTS==
The existing national variants of the ROM (i.e. UK, France, Spain) will continue to be supported, but no others will be added. Steps should be taken to limit the amount of national variation to that which really is necessary. There should be no need to make any changes for approvals reasons, except to power supply input voltages and mains connectors.
There will be different versions of the keyboard, instruction book, and disk, as well as the ROM cartridge. It is thus possible to change between, variants without dismantling the computer.
==PACKING LIST==
The following items should be included in the computer carton:
*Polystyrene foam packing pieces
*The Amstrad 464 Plus or 6128 Plus unit, with ROM cartridge installed.
*A PD-1 Games paddle
*The instruction book
The following should be included in the monitor carton:
*Polystyrene foam packing pieces
*The MM12 or CM14 monitor
