Boss Audio BE1200.4D User Manual - Page 3

Troubleshooting If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tips which may help eliminate the problems. SYMPTOM Amplifier will not power up. POSSIBLE REMEDY Check to make sure you have a good ground connection. Check that the Remote Input (Tum-On) has at least 9VDC. Check that there is battery power on the (+) terminal. Check that there is at least 12v. Check all fuses, replace ifnecessary. Make sure that the Protection LED is not illuminated. Ifit is lit, shut off the amplifier briefly, and then repower it. Protection LED comes on when amplifier is powered up. Check for short circuits on speaker leads. Tum down the volume control on the head unit to prevent overdriving. Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty and needs servicing. No output. Check that all fuses are OK. Check that amplifier is properly grounded. Check that the Remote Input (Turn-On) has at least 9VDC. Check that the RCA audio cables are plugged into the proper inputs. Check all speaker wiring. Low output. Reset the Level Control. Check the Filter Control settings. Audio present in Check the RCA interconnect cables. only one channel. Check all speaker wiring. High hiss in the speakers. Disconnect allRCA inputs to the amplifiers. If the hiss disappears, then plug in the component driving the amplifier and unplug its inputs. If the hiss disappears at this point, go on until the faulty/noisy component is found. It is best to set the amplifier's input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this manner. Try to set the head unit as high as possible (without distortion) and the amp input level as low as possible. Squealing noise from speakers. Check for improperly grounded RCA interconnects. Distorted sound. Check that the Input Level Control is set to match the signal level of the head unit. Always try to set the Input Level as low as possible. Check that all crossover frequencies are properly set. Check for short circuits on the speaker leads. Amplifier gets very hot. Check that the minimum speakerimpedance for the amp modelis correct. Check that there is good air circulation around the amp. In some applications, it may be necessary to add extemal cooling fan(s). Engine noise (static type) Engine noise (alternator whine) This is usually caused by poor quality RCA cables,which can pick up radiated noise. Use only the best quality cables, and route them away from power cables. Check that speaker leads are not shorted to the vehicle chassis. Check that the RCA grounds are not shorted to the vehicle chassis. Check that the head unit is properly grounded. ELITE MOSFETAmplifier User's Manual-page 17 Introduction ppm With the ELITE amplifier series, we are introducing four new amplifiers, all designed in the USA. This new series includes one monoblock/full range, one 2-channel, one 4-channel amplifier, one 5 -channel amplifier. All BOSS models feature variable low pass and high pass (except monoblock amp) crossovers and variable input gain controls. For further flexibility in the use of a subwoofer, 0 -+12dB Bass Boost control has been included on all amplifiers. You can control the subwoofer level with the remote level control module. What is included? When first unpacking your new amplifier, please check first that the package contains all of the items below. If something is missing, contact the store where you purchased the amplifier. • ELUTE amplifier • Remote subwoofer control (BE1200.1D/BE2200.5D) • Input /output wire harness • Four (4) mounting screws • Power terminal adapter • User's manual §9NS understands that amplifiers are placed in many different kinds of installations, so we incorporated a very flexible system of controls in these amplifiers in order to help you integrate the amp into your system regardless of the nature of your input source. ELFTEMOSFET Amplifier User's Manual-page 2