Tektronix 1740A/1750A REMOTE, REFERENCE, or B3, channel as the, through this menu, ence can be set to, REFERENCE (Dual Standard Only)

Using the Menus

REMOTE

HThe currently operating software version is dis- played in the lower right corner of the screen.

HThree menu choices are available. REM INPUT configures rear-panel REMOTE connector pin 3 to accept External Horizontal or Staircase input. STAIRCASE configures the staircase input for 3-step (RGB) or 4-step (YRGB) signal. BAUD configures the data transmission rate for the rear-panel RS232 connector for 1200, 4800, or 9600 baud.

HThe remote input is enabled by a TTL low or switch to ground. See page B-1.REFERENCE (Dual Standard Only)HNTSC external reference and PAL external refer-

ence can be set to EXT, A, A1, A2, A3, B, B1, B2,

or B3.

HWhen The front-panel REF EXT is selected (LED lights) the instrument uses the rear-panel EXT REF input. Dual-standard monitors can be configured for two external references; one for NTSC and one for PAL. Any of the input channels can be designated as a second external reference by selecting that input

channel as the NTSC EXT REF or PAL EXT REF

through this menu.

HIf NTSC and PAL external references are configured the same, the monitor automatically operates in the same television standard as the EXT REF input. When NTSC and PAL external references are configured differently, the monitor’s operating standard is determined by the standard of the dis- played video instead of the EXT REF input. Once the operating standard is determined, the monitor immediately switches to the appropriate input for reference timing.

1740A/1750A Series Waveform/Vector Monitor User Manual 3-23