User manual

41
Personal PA
®
DSP FM Wideband Transmitter
Troubleshooting
The T45 “RF” (On Air) Indicator is not on
• Ensure the transformer (TFP 048) is plugged into the transmitter and any remote power switch is on.
• Ensure the electrical outlet is on.
• Ensure the power button on the front of the T45 is pressed to the “on” position.
• Ensure the 24 VDC power supply is working.
• Ensure the RF output is not set to “OFF.”
• Ensure there is audio present. The RF will time-out and shut off if audio is not present for a period of time (if the RF Time-out was
set to 30 min or 4 hr in the menu).
No Audio heard in Phones jack
• Check to see if there is a signal coming from your audio source. Check and correct your audio source if necessary.
• Check to see if the Headphone Volume Level has been turned all the way down. If so, increase it.
• Check to see if there is an incorrect or defective connection from your audio source. See Figure 6 for detailed connection
instructions.
Noise or Distortion in the Audio
• Check to see if there is noise in the audio source. To nd out, disconnect the audio cable. If the noise disappears your noise
problem is in the source. Correct or repair your audio source.
• Ensure the Audio Source conguration is set to match the audio source input device. See “Audio Input Settings” to properly
congure the Audio Source.
• Check to see if the Audio Input level is set too high. If the “input overload” message is shown on the display, then the audio level
needs to be adjusted. See Figure 7 - Audio Input Level hot buttons.
• Check for ground loops or noise on the input signal. See Figure 4 for more information. If you are still having trouble, call your
Authorized Williams Sound dealer or representative.
Noise in audio “grows” when program is silent
• The Audio Level Control may be set too high. You’re probably also seeing the +6 level indicator lighting all the time. To correct,
adjust the Audio Level control on the front of the T45. See Figure 7 - Audio Input Level hot buttons.
• Check the T45 Compressio Ratio, which may be inappropriate for the type of program being transmitted. Try setting the
Compression Ratio to 1:1 (compression off). See “Audio Settings - Audio Presets - To set up a custom audio preset”.
Reception difculties
NOTE: Be sure to listen to the audio transmission on the T45 phone jack prior to checking the receiver reception.
No Reception
• Ensure the antenna on the T45 has been connected correctly.
• Check the RF Output Power setting. It should be “FULL”, “MEDIUM” or “LOW” power. See “RF Settings - RF Output Power”.
• Ensure the FM receiver is ON. Ensure the batteries are properly installed (observing proper polarity). If the batteries are
rechargeable, it may be necessary to charge the batteries overnight.
• Ensure the FM receivers are operating on the same frequency as the T45.
Insufcient range, good reception near transmitter, poor at a distance
• Ensure the transmitting antenna was installed as specied in this manual. If not, correct or replace the antenna. If a remote
antenna was installed, check the cables and connections. The signal should be clearly audible up to at least a 100-foot distance
with the ANT 005 or ANT 025.