Acoustic Research AR4200 Operating Instructions Manual page 47

Specification
Display Format Supported by This Unit
For VGA: 640X480 @ 60Hz,72
1024X768 @ 60Hz,75Hz,85Hz;
For YPbPr: 480P @ 50Hz, 59Hz, 60Hz;
720P @ 50Hz, 59Hz, 60Hz;
1080i @ 50Hz, 59Hz, 60Hz.
44
(continued)
Hz ,75 Hz ,85 Hz; 800X600 @ 60Hz,72Hz,75Hz,85Hz;