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S TEREO A MPLIFIER/ AUTOMATED S WITCHER
TROUBLESHOOTING
TVA50 will not power up
Is TVA50 plugged in to an unswitched
outlet?
Is the POWER/ACTIVE LED Red?
120VAC measured from outlet with
voltmeter?
Try another unswitched outlet.
TVA50 will not activate (Current
Sense Mode)
Is the TV plugged in to the sensed out-
let on the TVA50?
Is the TV turned ON?
TVA50 will not activate (12V Trigger
Mode)
Is the voltage on the TRIGGER IN ter-
minal 3-30 VAC/DC?
Is polarity of 3.5mm miniplug correct?
(tip=+12VDC; sleeve=ground. DC
only. Polarity non-critical for AC
voltage trigger.)
No audio output A pair/B pair
(whole-house/nonswitched mode)
Is the POWER/ACTIVE LED Red?
Are the speakers connected to the
TVA50?
Are the 4 pin speaker connector plugs
(IN/OUT; A/B) properly seated?
Is the speaker wire properly stripped?
Are the lock tabs snapped down?
Is the whole-house audio source ON
and playing?
Is the volume up on the whole-house
system?
If using an in-wall volume control, is it
turned up?
No audio output A pair/B pair
(local/switched mode)
Is the POWER/ACTIVE LED on the
TVA50 Green?
Is the TV/source line out connected to
the LINE IN on the TVA50?
Is the volume up on the TV?
Is the volume control on the TVA50
properly adjusted?
Audio level in local/switched mode
too high/low
See "Volume Control" section, page 15.
DS00395ACA-TVA50.qxp 6/1/04 9:51 AM Page 23