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ASA Electronics AquaTronics MS-407 Owner's Manual

Am/fm stereo radio with auto reverse cassette player
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R
Owner's Manual
AM/FM STEREO RADIO
WITH AUTO REVERSE CASSETTE PLAYER
Designed Specifically for
the Marine and RV Environment
MS-407

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Summary of Contents for ASA Electronics AquaTronics MS-407

  • Page 1 Owner’s Manual AM/FM STEREO RADIO WITH AUTO REVERSE CASSETTE PLAYER Designed Specifically for the Marine and RV Environment MS-407...
  • Page 2 FACEPLATE CONTROLS DIAGRAM (Figure 1)
  • Page 3 Control Description- See Figure 1 POWER ON/OFF VOLUME Rotate the VOL/PWR knob to turn the power and increase the sound level. FADER CONTROL Rotate the Fader Control clockwise to shift the sound output towards the rear and counter- clockwise to shift the sound output towards the front speakers. The center indent position is for balancing the front and rear speaker output.
  • Page 4 This indicator shows which direction the tape is being played, or direction of tape movement (Fast Forward or Rewind). LOCAL/DISTANT SELECTOR This switch allows maximum reception in both weak and strong AM/FM signal areas. Press this button to the “In” position for distant (or weak) signals reception. Press switch to the “Out” position for local (or strong) signal reception.
  • Page 5 Wiring Diagram Figure 2 MS-407 MS-407 MS-407...
  • Page 6 AM ANTENNA TRIMMER ADJUSTMENT The antenna trimmer can be reached through the small hole inside the cassette door (See diagram below) Tune radio to a weak station between 1200 and 1400 KHz AM. (If you cannot find a weak station in this range, tune to any strong station, and adjust tuning slightly off station). Adjust antenna trimmer for maximum output.

  • Page 7: Care And Maintenance

    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 the vehicle temperature is near or below freezing.
  • Page 8 Symptom No Power Power indicated; No audio output TROUBLESHOOTING AM/FM RADIOS Cause No 12VDC No 12VDC to memory lead (electronically tuned units only) Speaker Output shorted Speaker out cross channeled Possible Solution Check circuit fuse at source Check in-line fuse on power lead (wall mount units are located in rear cabinet) Power lead disconnected...
  • Page 9 Only one channel (right or left side) Popping in one or both channels Radio Balance Speaker Disconnected Speaker lead shorted or grounded Speaker wiring shorted or positive lead grounded Speaker terminals grounded or shorted Check radio function Check speaker connection at radio and/or speaker Check speaker wiring continuity to ground w/tester or meter...

  • Page 10: Application Notes

    AM/FM RECEPTION Many vans and RV’s 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.

  • Page 11: Antenna Cable

    Special circuitry in electronic tuned radios or AM trimmers in mechanically tuned radios, make up for some of this difference in optimum mast length for AM reception. ANTENNA CABLE Increasing the antenna lead cable (adding extensions) will reduce sensitivity of AM with electronic tuned radios.
  • Page 12 This note will discuss DC Power sources and how they relate to 12 volt DC audio/video products. DC (Direct Current) Power A large number of our products are designed for 12 volt DC applications. The power is supplied by a variety of sources i.e., the battery, converters, ignition systems and solar power.
  • Page 13 In conclusion, operating these audio/video products without the engine running will drain the battery to the point where these products will perform unacceptably in a short period of time. Converters Many RV OEM’s incorporate converters as a source of 12VDC when connected to shore power (110-120 VAC).

  • Page 14: Accessory List

    AVT-988 9” Color Television with Remote (12V) AVT-597 5” Color Television with Remote (12V) AVT-1498 13” Color Television with Remote (12V) AVP-7000 Video Cassette Player (12V) AVP-7285 Video Cassette Player (12V) Wireless Headphone Kit: Includes 2 sets Wireless Headphones and Transmitter BPA-501-12 4 Amp Adapter for use with AVT-988 9”...

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