Eiki Multimedia Port A-6 - Manual (Page 4)

Eiki A-6 manual Page 4
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.
4 3 2 1
Au
di
o swi
tch
er
(L &
R
)
4 3 2 1
Vi
deo swi
tch
er
Audio
Buffer
Audio
Buffer
2 1
RG
B
H
V
swi
tch
er
Video
Buffer
RGBHV
Buffer
Sync
detect
Sync
detect
Control & Power
1. Relay drive 1
2. Relay drive 2
3.
4. RGB front/rear
5. AV swr LS bit
6. AV swr MS bit
7. RGBHV present
8. Video present
9. Gnd.
10. +9 to 24v DC
A in 1
A in 2 L
A in 2 R
Front L
Front R
PC audio
(L&R)
A in PC L
A in PC R
Rear
(PC)
VGA in
Front
(laptop)
Rear
(Projector)
VGA out
Front
(Monitor)
Signal
Present
LED
A out L
A out R
Vout
+24v
RL2
RL1
V1 in
V2 in
Video
V3 Front
V4 in
Connections
shown on a
light green
background
are on the rear
of the unit.
Those with a
grey
background
are on the front.
Block diagram of the A-6 Multi Media port showing programming interface.