Williams Sound MOD 112 Instalační příručka stáhnout pdf (Strana 21)

Williams Sound

Helping People Hear

TROUBLESHOOTING

NEITHER TX8 INDICATOR LIGHT IS ON (FIGURES 1A AND 13).

 Make sure the wall transformer is plugged into the emitter and the power switch or any

remote power switch is on.

 Make sure the electrical outlet is on.

 Make sure the 24 VAC power supplies are working.

ONLY TX8’S P

OWER INDICATOR LED COMES ON (F

IGURES 1A AND

13).

 Make sure the MOD 111 is on.

 Make sure the baseband cable is connected properly.

 Check to see if the carrier light on the MOD 111 is on.

 Make sure an audio signal is being sent to the MOD 111.

NO SOUND THROUGH RECEIVERS.

 If some of the receivers work but others don’t, check for bad batteries or earphones on

the receivers that aren’t working.

 If none of the receivers work, check to see if the power and baseband cable are

connected to the emitter and that the Power and Baseband Indicator lights are ON.

 Check to see if the modulator is connected properly to the sound system. The CXR On

Indicator should be lit and there should be activity on the MOD 111’s Level Indicators.

 Make sure the “eye” is not covered up on the receiver. There must be clear line of sight

between the receiver eye and the emitter panel.

 Make sure the selected modulator frequency matches the selected receiver frequency.

SOUND THROUGH THE RECEIVERS IS WEAK AND NOISY.

 Hold a receiver in front of the Infrared Test LED on the front of the MOD 111 modulator

and listen to the signal. If the signal is weak and noisy here, check the Input Level switch

and Input Level Control settings. Increase the input signal level from the sound system

by turning up a mixer control. If the signal sounds okay, you may need to re-position the

emitter panels or add additional panels.

NOTE: Make sure the powerline voltage does not fall below 94V, or system

performance will be greatly reduced!

BUZZING OR HUMMING NOISE IN SOUND SYSTEM.

 Check for ground loops or noise on the input signal. Call your Authorized Dealer or

Williams Sound for help.

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Williams Sound MOD 112 Instalační příručka Strana 21