CM-4 (250-1021) Specifications Faxback Doc. # 4836 CRT SIZE: 13" diagonal SCAN FREQUENCY CRT DOT PITCH: 0.64 mm HORIZONTAL: 15.70 kHz +/- 500 Hz CRT SCREEN: VERTICAL: 60 Hz, +/- 1.0 Hz INPUT SIGNAL: RGB RESOLUTION: INPUT LEVEL: TTL-positive CONNECTOR: 9-pin, Sub-D w/cable SPEAKER: N/A (dtc-07/27/93)