50
Amplifier Problems
Fault
Symptom
Possible Cause
Amplifier "Dead"
NOTE: Be Sure a selection is playing.
Screen should say,
“Now Playing”
All Amplifier LEDs Dark
Amplifier power cord unplugged
Amplifier circuit breaker tripped
Defective Amplifier
Green POWER LEDs ON
Yellow COM LEDs Dark
Red OTT LEDs Dark
Input cables not connected
Cables to audio interface not connected
Defective audio interface
Green POWER LEDs ON
Yellow COM LEDs blinking or on
Red OVERLOAD LEDs Dark
Audio output cable not connected
Be sure speakers are connected.
Jukebox speaker switch at “0”
Defective amplifier
Green POWER LEDs ON
Yellow COM LEDs ON
Red OVERLOAD LEDs Lit
Amplifier overload. Turn off main
switch and try again after 15 minutes.
Reduce volume or number of speakers
Replace amplifier if still in overload.
Weak Sound
Not enough volume
Power amplifier gain controls too low
Summary of Contents for QB8-PV
Page 1: ...Nostalgic Music Center Version 2 1 QB PV Models Service Parts Manual...
Page 48: ...48 Block Diagrams...
Page 58: ...58 Harnesses...
Page 59: ...59 Accessories Part No Description 02467 Wireless Bridge Kit 02466 Dial Up Modem Kit...
Page 60: ...60 61743 Nostalgic Music Center Version 2 1 QB PV Models Service Parts Manual...