Input terminals
On the front of the unit there are the following connections:
•One VGA input
•One VGA monitor output. This follows the output of the switcher.
•Two RCA sockets for line audio, shared with a 3.5mm stereo jack
•One RCA socket for composite video input.
The audio and video inputs are accessed together as Input 3. The VGA input is switched separately. If you want to use the audio inputs with the VGA input you have to select them separately as AV input 3.
On the rear of the unit there are the following connections:
•One VGA input on HDDB15 connector
•One VGA projector output on HDDB15 connector
•Three audio inputs on screw terminal connectors. Input 1 is a mono input.
•Three video inputs on screw terminal connectors.
•One pair of stereo audio outputs on screw terminal connectors
•One Composite video output on screw terminal connectors
•Two breakout connections from the Control and Power socket for relay drive. (See notes on the following page for more information.)
Audio input 4 would normally be used in conjunction with the rear PC input.
There is an internal 2 pin jumper that, when linked, converts to output to mono by combining L and R audio signals.
With no control inputs asserted, AV 1 and the rear VGA input is selected.
Block diagram of the
A in 1 | 1 | |
A in 2 L | 3 2 switcher R)& | |
Front R | ||
A in 2 R |
| |
Front L |
| |
PC audio | Audio (L | |
(L&R) | ||
| ||
A in PC L | 4 | |
A in PC R | ||
|
| V1 in | 231 switcher | ||
|
|
| ||
| V2 in |
|
| |
| Video |
|
| |
| V3 Front |
| Video | |
Connections | V4 in | 4 | ||
shown on a |
|
|
| |
light green | Rear |
|
| |
background |
|
| ||
(PC) | 1 |
| ||
are on the rear |
| |||
| 2 | RGBHV switcher | ||
of the unit. | VGA in | |||
|
| |||
Those with a | Front |
|
| |
(laptop) |
|
| ||
grey |
|
| ||
|
|
| ||
background |
|
|
| |
are on the front. |
|
|
| |
Eiki |
|
|
| |
Audio |
| A out L |
Buffer |
| A out R |
|
| Vout |
|
| +24v |
|
| RL2 |
Audio |
| RL1 |
|
| |
Buffer | Control & Power | |
| ||
| 1. | Relay drive 1 |
| 2. | Relay drive 2 |
| 3. |
|
| 4. | RGB front/rear |
Video | 5. | AV swr LS bit |
6. | AV swr MS bit | |
Buffer | 7. | RGBHV present |
| ||
| 8. | Video present |
| 9. | Gnd. |
| 10. +9 to 24v DC | |
Sync |
|
|
detect |
|
|
|
| Rear |
|
| (Projector) |
RGBHV |
| VGA out |
Buffer |
| |
|
| Front |
|
| (Monitor) |
Sync |
| Signal |
detect |
| |
| Present | |
|
| |
|
| LED |
Page 4
