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USB 1389 - 1390 - 1391 - 1392
Class-AB Power amplifiers
OPLOSSING VAN PROBLEMEN
Controlelampje voor het in werking zijn gaat niet aan
• controleer alle zekeringen in de versterker
• controleer de hoofdzekering bij de accu
• controleer plus en min aansluitingen van de accukabels
• controleer de spanning
Controlelampje voor het in werking zijn is aan, maar er is geen geluid
• controleer de volume-instelling van de radio
• controleer de GAIN bediening v
an de versterker
• controleer RCA kabels en aansluitingen
• controleer de kabels en aansluitingen van de luidsprekers
Basweergave van het signaal is laag
• één van de luidsprekerkabels is wellicht niet aangesloten
• de basregeling van de radio is op een te lage waarde ingesteld
• actieve cross-over unit is onjuist ingesteld
• controleer de schakelaars van de versterker
• een slechte aardverbinding van de versterker met het chassis
De versterk
er gaat aan en uit
• de aansluitingen van kabels en/of accu zijn geoxideerd
• lage spanning van de accu
• onjuiste aansluiting van de afstandskabel
Één kanaal functioneert niet
• controleer de RCA aansluiting v
an dit kanaal
• controleer de aansluitingen van de luidsprekers van dit kanaal
• regulator voor de geluidsbalans is niet in de middenpositie gezet
controleer de luidsprek
ers voor dit kanaal
© US Blaster Europe BV
15


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