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 |