AMSTRAD CTM-640 / CTM-644

A series of RGB CRT Monitors bundled with the Amstrad CPC computers.

The only difference between the CTM-640 and CTM-644 is the lack of 12V DC socket on earlier CTM-640 models.

The 6pin DIN carries video signal. The 5V DC lead powers the computer, while the 12V DC socket is required with CPC-664 and CPC6128 to power the floppy disk drive.

It's possible to use either a custom adapter or an Amstrad MP-3 Tuner to plug any 15KHz RGB source. Sync might be limited to composite sync.

These monitors can also be found under the Schneider brand.

Manual
Service Manual for CPC-664, GT-65 and CTM644: Mega