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Output Impedance: Compatible with 4 or 8 ohm speakers. Tuning Range: (AM)530-1710KHz (FM)88-108MHz Sensitivity: (AM) less than 25uV (FM) less than 5uV FM Stereo Separation: More than 23 dB Frequency Response: 50-10000Hz Wow & Flutter: Less than 0.3% CARE & MAINTENANCE Cassette Always check that the tape is tightly wound inside the take-up spool on the cassette. If the tape is loose,wind it with a six - sided pencil.Never use C-120 (120 minute) cassettes in this player. Never use cassette player when vehicle temperature is near or below freezing. Cleaning of Tape Head & Capstan Since tapes contain oxides, you will find a black residue builds up on the tape head and drive capstan ( inside cassette door ). These residues should be cleaned after 50-100 hours of accumulated tape operation .You can use a cassette cleaning cartridge available where ever stereos are sold. De-Magnetizing The movement of the magnetic tape head and metal parts cause a magnetic field to develop. We recommend you have the tape player demagnetized at least twice annually. You can purchase an inexpensive tape head demagnetizing tool to do this yourself. 3 This note will discuss DC Power sources and how they relate to 12 volt products. General Specifications Our general specification for the voltage range of operation is 10 to 16 volts DC . Voltage The voltage of a fully charged battery ( engine not running ) is approximately 12.5 VDC. Once a load (items being powered represent the "load" ) is applied , the voltage will drop. How much the voltage is reduced will depend on the following: 1. Current draw (amount of amperage) The higher the draw the greater the voltage will drop. 2. The size and length of the conductor (wire) supplying power. Converters Many boats incorporate convertors as a source for 12VDC when connected to shore power (110-120 VAC).Some converters put out a very clean DC supply where others may have a considerable amount of AC ripple noise under maximum load. This AC ripple noise is filtered by the boat battery when connected into the circuit , but when the battery is disconnected the amount of AC ripple noise can create major problems for audio products. Noise may result and the line fuse may fail Ignition systems Unwanted noise generated from ignition systems used to be a big problem. However, with more sophisticated filtering circuits designed into audio/video products, these problems are not as wide spread Changes in wire harnessing also has contributed to the decline of application problems. Use the same ground point for all related products. This will greatly reduce the potential for unwanted noise. APPLICATION NOTES 6 "We have a complete line of audio and video products specifically designed for the Marine and RV market. Please contact ASA at for a view of our on-line catalog." TROUBLESHOOTING CHART AM/FM RADIOS Symptom Cause Possible Solution No Power No 12VDC Check circuit fuse at source Check in-line fuse on power lead Power lead disconnected Ground connection disconnected Power indicated; no audio output or very distorted sound No 12VDC to memory lead(electronically tuned units only) Circuit fuse at source In-line memory lead fuse Speaker Output shorted Check continuity of speaker leads to ground Speaker out cross channeled Check for proper speaker wiring Note: Radios have a sticker on them explaining wiring color code. Only one channel (right or left side) Radio Balance Check radio function Speaker Disconnected Check speaker connection at radio and/or speaker Speaker lead shorted or grounded Check speaker wiring continuity to ground w/tester or meter Popping in one or both channels Speaker wiring shorted or positive lead grounded Speaker terminals grounded or shorted Leads from speaker cone to terminal touching metal basket or speaker No AM Reception Antenna disconnected Connect Antenna Antenna mast grounded or shorted Check antenna or substitute with antenna known to be good Antenna center lead broken Check antenna or substitute with antenna known to be good NOTE:Antenna leads can be tested with continuity or multi-tester. Some may have electronic component (capacitor) built in which not allow it to be tested. APPLICATION NOTES AM/FM RECEPTION Some boats have more than one AM/FM radio.The best way to insure good reception is to supply a separate antenna for each radio. Other options available to supply adequate AM/FM reception to these radios are listed below, along with some general information in regards to radio reception. "Y"ADAPTORS The "Y" adaptors used to connect one antenna to two radios will compromise both AM and FM reception. AMPLIFIED AM/FM ANTENNA A popular second antenna that can be used is our AB-100 amplified AM/FM antenna . It is small and has a retractable mast that can be mounted vertically or horizontally. This antenna provides good FM reception , but the AM reception will be compromised to some degree because of the length of the mast. MAST LENGTH AM/FM antennas comp...