Summary of Contents for Sony HR Trinitron PVM-20M7MDE
Page 1
3-810-592-11 (1) Trinitron Color Video Monitor Interface Manual for Programmers Before operating the unit, please read this manual thoroughly and retain it for future reference. PVM-20M7MDE 1995 by Sony Corporation...
Table of Contents Introduction ....................3 Controlling the Color Video Monitor..........3 RS-232C Main Control Functions............ 3 Communication via the RS-232C Interface ........... 3 Connector Pin Assignment ............... 3 Communication Parameters ............. 3 Command Block Format ..............4 Communication Protocol..............4 Starting Up the Monitor ..............
Communication via the Introduction RS-232C Interface Controlling the Color Video Monitor Connector Pin Assignment The color video monitor can be controlled in two The RS-232C connector is on the back of the monitor. ways: The signal assignment for the monitor are shown in the •...
Communication via the RS-232C Interface computer, it sends back the following responses Command Block Format corresponding to the commands sent from the computer within 9 milliseconds of receiving the Data is sent between the computer and the monitor in commands. the following format.
Control Commands Command Table The following tables show the commands, sent from the computer, which control the color video monitor, and the monitor’s responses corresponding to the commands from the computer. Response from the monitor Commands from the comupter Data bytes Specific Command name Specific...
Command Description Sync signal Input Config (21H) EXT SYNC = 0 SYNC ON G/Y = 1 This command controls the current video signal being displayed on the monitor. Underscan mode You can select the input connector, sync signal, Normal scan = 00 underscan mode, preset white balance and VTR Underscan = 01 connected to RGB/COMPONENT A or B connector...
Off Switch Function (2AH) Select RGB Mode (2FH) This commands toggles a monitor function to the off This command defines the RGB mode selection for the state. monitor. The function to be toggled off is determined by the The bit assignment is as follows. byte data sent after 2AH.
Command Description Bits which are not specified here are undefined b its White Balance Data (40H) and their values are always ignored. This command adjusts the white balance in the monitor’s volatile RAM. NV RAM Save (45H) To save data, see the next “NV RAM Save (45H)” command.
Sub Control Data (4CH) Landing Data (4DH) This command adjusts the monitor sub control data. To This command adjusts landing data . save adjusted data, see the command “NV RAM Save Data is specified in one byte, up to a maximum value (45H)”.
Command Description 3rd byte Sub Control Sense (6BH) This byte specifies which sub control data items, specified in the first byte, are to be reset. This command requests sub control data from the monitor. The bit assignment is as follows. CHROMA BRIGHTNESS APERTURE...
First byte Input Config Reply (70H) 1 is set in the item to be responded in the first byte. The bit assignment is as follows. The monitor returns the current status of the currently selected input signal using two bytes with the same bit assignment as the Input Config (21H) command.
0 for this item. LOCAL mode, the monitor returns 0 corresponding to When the monitor does not understand the received the bit of undefined message of the NAK Replay message = 1 (05H). Sony Corporation Printed in Japan...