Extron Electronics TP T Series Transmitters User Guide - Manual (Page 25)

2-15 TP T Series Transmitters • Installation and Operation
PRELIMINAR
Y
a
Power/signal LED —
Amber: Indicates that power is applied, but that the transmitter is not
connected to a receiver.
Green: Indicates that the transmitter is properly connected to a receiver.
b
ID bit switches (TP T 15HD A and TP T 15HD AV) — If a local monitor
is installed, set both of these DIP switches to Off. If a local monitor is not
installed, set both switches to On.
c
H. Shift (TP T 15HD A) and PC H. Shift (TP T 15HD AV) controls — These
front panel controls are 12-turn potentiometers with a soft mechanical stop
at the high or low end. When you have reached the high or low end of the
adjustment, the potentiometer makes a clicking sound as you turn it, and the
display indicates no further changes.
d
DSPP switch — This rear panel DIP switch turns on Digital Display Sync
Processing, disabling sync processing for LCD projectors and other displays
that cannot handle processed sync.
N DDSP disables the horizontal shift control.
Troubleshooting
If the image does not appear
1 . Check the transmitter’s and receiver’s front panel Power LEDs to ensure that
all devices are receiving power.
2 . Ensure that the transmitter is receiving a video input.
3 . Ensure that the TP cable(s) are properly terminated in accordance with
TIA/EIA T 568A standards and that the RJ-45 connections are securely made.
The Power LEDs on both devices light green when a transmitter is properly
connected to a receiver.
4 . For computer/RGB video, ensure that the receiver’s SOG and C Sync switches
are in the correct positions for the video output.
5 . For computer video, ensure that the transmitter’s ID bit switches are set to
On.
6 . For computer video on an LCD projector, ensure that the transmitter’s DDSP
switch is set to On.
7 . For component video, ensure that the input signal is bi-level sync and not
tri-level.
8 . The transmission distance may be too far for remote power. Try connecting
the local 15 VDC power supply to the transmitter.
9 . The transmission distance may be too short. Ensure that the UTP cable is at
least 25 feet (7.6 m) long.
10 . If the Manual/Auto switch is in the manual position, ensure that the
receiver’s level controls are not set too high. Too much level and peaking can
cause display problems.
11 . For computer video from a laptop or for ungrounded AC distribution
systems, the transmitter may need to be grounded. See “ Grounding the
transmitter ,” earlier in this chapter.