Operation And Troubleshooting; If The Image Does Not Appear Or There Is No Sound; If The Image Is Not Displayed Correctly - Extron electronics RGB 190F User Manual

Installation and Operation, cont'd
5 — No monitor (ID bit termination) — This switch controls
the input assigned to the local monitor output and ID bit
termination.
On — ID bits 4 and 11 are tied to ground.
Off — ID bits 4 and 11 are unterminated.
6 — Mono audio output (RGB 192 only, spare on RGB 190F)
On — Monaural audio is output on the left channel only.
When mono is selected, the right and left inputs
are combined and placed on the left output
connectors.
Off — Normal stereo output.
Power connector — Plug the external 12V power supply into
7
this 2-pole captive screw connector. The power supply is
included with the unit. Figure 2-6 shows how to wire the
connector.
Do not tin the stripped power supply leads before installing the
captive screw connector. Tinned wires are not as secure in the
captive screw connectors and could pull out.
End view of
power supply
output cord.
Figure 2-6 — Power connector wiring
The two power cord wires must be kept separate while the power
supply is plugged in. Remove power before continuing.
To verify the polarity before connection, check the no-load
power supply output with a voltmeter.
Alternatively, an Extron P/S 100 Universal 12VDC Power
Supply can power up to six RGB 190F or RGB 192
interfaces using only one AC power connector.
Power indicator —
8
Amber — Indicates power is applied.
Green — Indicates that power is applied and a sync signal is
present on the input.
H(orizontal) Shift — While viewing the displayed image, rotate
9
this control to move the image to the right or left on the screen.
2-8 RGB 190F, RGB 192 • Installation and Operation
Captive Screw
Connector
+12V
Return
DDSP disables the interface's Horizontal Shift control.
To use the display's centering controls rather than the
interface's controls, set the DDSP DIP switch to On.

Operation and Troubleshooting

Connect the power cords and turn on the displays (projectors or
monitors), audio output devices (sound system) (RGB 192
only), the interface, and the input device (computer). The
image should appear on screen, and sound should be audible
(RGB 192 only). If not, ensure that all devices are plugged in
and receiving power. Check the cabling and switch settings,
and make adjustments as needed.

If the image does not appear or there is no sound

1. Ensure that all devices are plugged in.
2. Make sure that each device is receiving power. The
interface's front panel LED lights green if the interface is
receiving power and an active sync signal.
3. Check the cabling and the audio connector wiring and
grounding, and make adjustments as needed.
4. For digital display devices (including LCD, DLP and
plasma devices), try turning the DDSP DIP switch (switch
4) On (up) or Off (down) on the front panel.
5. To test the system setup and output, substitute a video test
generator for the computer input. Unplug the input and
output devices' and the interface's power cords, replace
the video source with a VTG, then reconnect power cords
to restore AC power.
6. Call the Extron S 3 Sales & Technical Support Hotline if
needed.

If the image is not displayed correctly

1. If the output image looks too green, the sync on green
(SOG) DIP switch (switch 2) may be set to On (up), and the
display device may not be configured to handle SOG
signals. Set the switch to Off (down).
2. If the picture bends or flags at the top of the screen, set the
serration pulse DIP switch (switch 3) to Off (down).
3. For a display device that experiences intermittent glitches,
try turning DDSP On (up) or Off (down) using DIP switch
1 on the front panel.
4. If the picture hangs off the edge of the screen, adjust the
Horizontal Shift control.
RGB 190F, RGB 192 • Installation and Operation 2-9