Harman JBL DX-1, Руководство пользователя, Страница: 10 / 14

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Troubleshooting
The DX-1 crossover is designed to provide years of trouble-free service with no required maintenance. Below is a list of some problems which may
be experienced with any electrical components, and some suggestions for identifying the source. Most often they occur in another system compo-
nent.
WARNING: Turn off all audio system components before attempting any of the following procedures.
• No power (LED does not light).
Check for a loose power cable connection on the DX-1. If the crossover is powered from a remote source (preamplifier or power strip), check
the connection at that point. Confirm all power connections in the system.
• No sound, but LED is lit.
Check for loose or incorrect signal connections. Check operational status and output levels of all additional system electronics. Check for
shorted loudspeaker wires.
• Distorted sound at all volumes.
Check for loose or incorrect signal connections. Check operational status and output levels of all additional system electronics. Check loud-
speaker connections for correct polarity, loose components or possible damage.
• Poor bass response.
Check for loose or incorrect low frequency connections. Check for proper low frequency amplifier operation. Check loudspeaker connections
for correct polarity. Inspect loudspeakers for woofer cone damage.
• Poor high frequency response.
Check loudspeaker connections for correct polarity. Inspect loudspeakers for tweeter damage.
If, after attempting the above troubleshooting measures, your DX-1 crossover appears to require service, contact the JBL dealer, agent, or autho-
rized representative from whom the unit was purchased. Do not attempt to make any repairs on your own or allow anyone but an authorized
repair person to make the repairs. Remember to retain your original sales slip or invoice.