Setup guide

MAGENTA MULTIVIEW™ SERIES
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4. Troubleshooting
4.1. Common Problems
In most cases, nearly every issue with the MultiView™ CAT5 Video System can be resolved by
checking the CAT5 termination and making sure that it’s pinned to the TIA/EIA 568B wiring
specification. However, there may be other problems that cause the system to not perform as it’s
designed. Below are solutions to the most common installation errors.
Problem: No video signal at the transmitter local port or at the receiver.
Solution: • Check that both units are powered.
• Ensure EQ adjustment switches are is set correctly
• Make sure the CAT5 cable is terminated correctly per the TIA/EIA 568B
wiring specification.
• Is the display device powered on and functioning?
• Check to ensure display settings (resolution, refresh rate, etc) are
compatible with input signal.
Problem: Poor video quality:
Solution: • Have all receiver adjustments been finished (see section 3.3).
• Ensure EQ adjustment switches are is set correctly
• Check all cable connections.
•The video signal’s refresh rate may be set too high. Reset to a
lower refresh rate in your monitor-configuration menu.
Problem: Poor audio quality (MV 500A only):
Solution: • Powered speakers are required. Make sure speaker power is ON.
• Check input source levels from the source device. Make sure
the audio source is not overdriven or underdriven.
• Audio is summed left and right for “A” versions. If using a single
channel, both audio inputs must be connected at the transmitter
end for full audio gain. Audio is line level.
• Low Level Audio may require the 100 Ώ termination disabled. Turn
SW1 off to disable termination.
Problem: Serial communication doesn’t work correctly (MV500S only):
Solution: • Are the serial devices connected properly? Are the serial
parameters correct for source/destination devices?
• Are the serial cables terminated correctly? If a null-modem
cable is used, it must be placed at the receiver end.
• When using RS-232 transmitters or receivers in daisy chains,
Cat5 switches, Cat5 distribution amps, or Multi-output
transmitters, the serial signal is a unidirectionally broadcast
mode only. In this mode, all other MultiView™ CAT5 Video
System devices must be the simplex serial type.
• MV500S use 3 wire (TX,RX,GND) signals only via the 1/8”
connector (see Appendix A for pinout).
Problem: “Green shift” or “green washout” on multimedia signals.
Solution: The standard video model is designed to function with DC coupled
signals in which the black level is referenced to 0 volts. For five-
component (RGB/H&V) AC coupled video, the MultiView™ Series
UTx or XRTx Universal transmitter has been designed with full DC
restoration capability. Please refer to the transmitter user manual.