Niles Audio SI-250, SI-2100, SI-2150 manual Hum from the speakers, Amp will not turn on

Page 19

2 Channel, Bridgable Power Amplifiers

TroubleShooting Guide

Symptom

Possible Causes and Test Procedure

Hum from the speakers

Check for faulty cables, faulty source material, an ungrounded phono system or a defective component.

Amp will not turn on

AC power cord must be plugged into a working outlet. Master power switch must be on.

Bass sound is weak and the stereo image is “phasey” or “blurry” sounding in one room

The loudspeakers are wired out of phase. Reverse the connections at the back of one speaker.

NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992		19

Image 19

Contents SI- SI- SI Congratulations FCC Required Text Important Safety InstructionsIntroduction Bridgable Power AmplifiersFreedom from Fan Noise Features and BenefitsReal World Power Transparent SoundTurn-On Modes Status Display for TroubleshootingBridged Mode Lifetime ConnectionsPlacement Installation ConsiderationsTurn-On Mode Multiple Speaker Loads Installation ConsiderationsTech TIP Cable and WireTo the amplifier Amplifiers Mm mini-jack for Voltage input Front and Rear Panel DetailsBicolor Status LED illuminates FG00933 InstallationWant to control Output maintaining proper polaritySpeaker Wire Connections Bare WireCascade Audio Outputs Use audio patch cables with RCARCA plugs into the amplifier’s jacks Line Level Audio Input AC Power Plug Plug the male end of the AC powerOperation Another cable that is known to be good No sound onOne channel ContinuityAmp will not turn on Hum from the speakersDesign Principle Average PowerSignal to Noise WeightBUY-HIFI Remedies for Breach of Warranty Limited WarrantyChannel, Bridgable Power Amplifiers 0 0 B U Y H I F I w w w . n i l e s a u d i o . c o m