Pinout for DB-25 connector on the side of the PVM-1390

^Pin^Name^Description^
|1|IBM Select|High: IBM mode (RGBI) Low: 3-bit TTL (RGB)|
|2|Audio Select|High: Audio input from pin 13 Low: Audio input from LINE A/B/VTR jacks|
|3|HSync/CSync|Horizontal or Composite Sync, Negative polarity|
|4|Blue Input|Positive polarity|
|5|Green Input|Positive polarity (Sync on green optional in analog mode)|
|6|Red Input|Positive polarity|
|7|NC|Not connected|
|8|NC|Not connected|
|9|Analog/Digital|High: Analog Low: Digital|
|10|RGB/Normal|High: High: RGB input selected Low: LINE A/B/VTR input selected|
|11|VSync|Vertical Sync, Negative polarity|
|12|Blanking|High: High: Video input from RGB input only Low: LINE A/B/VTR signal is superimposed over signal from RGB input|
|13|Audio Input|-5 dB / 100% modulation|
|14|NC|Not connected|
|15-24|GND|Ground|
|25|Intensity|Positive polarity|