User manual LOWRANCE X-16 OPERATION MANUAL

[. . . ] ________________ -- . '·· NOTICE Periodically wash the Transducer Face with soap and water to remove any oil film that may collect. Oil and dirt on the face will reduce sensitivity or may even preventsounding. GOT A PROBLEM?LET US HELP! Please detail the problem you are experiencing. Our ServiceDepartment may be able to save you the inconvenience of returning your unit. If it is determined that your unit must be returned, full shipping instructions will be provided. INSTALLATION ANID OPERATION MANUAL X-16 OWNER'S MANUAL SCHEMATIC DIAGRAM AND PARTS LIST Should you desire a Schematic sonar unit, please give us a it in Diagram and Parts list for ypur chance to help before sending Lowrance TRUELINE RECORDfor repair. [. . . ] Also, less than maximum power is transmitted when the pulse length is less than 100 micro-seconds. To set the initial transmitter pulse length, simply press on the PDF compression, OCR, web-optimization with CVISION's PdfCompressor 6 23 · SUPPRESSOR LEVEL 0 1 INITIAL TRANSMIT PULSE INCREASE (micro-seconds) AUTOMATIC 0 2 3 4 5 6 7 100 200 330 450 600 800 IF INITIAL TRANSMIT PULSE LENGTH IS LESS THAN 500 MICROSECONDS: DISCRIMINATION LEVEL SUPPRESSOR 1 1 LEVEL 0 2 3 4 2 3 4 IF INITIAL TRANSMIT PULSE LENGTH IS GREATERTHAN 500 MICRO- SECONDS: DISCRIMINATION LEVEL SUPPRESSOR LEVEL 0 1 1 2 3 4 is automatically increased when the Discrimination level is increased. This is done for better noise rejection. The following chart shows the relationship between Suppression and Discrimination. Remember, Suppressor value 1 adds nothing to the initial transmit pulse length. In otherwords, if the lower limit selected was 525 feet and a Discrimination level of 2 was 2 3 4 5 selected, the transmit pulse length would be: 525 + 200 = 725 micro-seconds. We added the initial transmit pulse of 525 microseconds which is listed in the initial transmit pulse chart, to 200 micro-seconds, which is Suppressor level 3, according to the Discrimination - Suppressor chart. So the total initial transmitpulse length is 725 micro-seconds. Now, if we want, we can increase the the digital shows up on the X-16 PAPER SPEED CONTROL This key adjuststhe speed of (random short lines running verthe chart paper. tically across the paper), then increase the Discrimination level When the X-16 is first turned on, until they are gone. To use the Discrimination funcThis setting is good for detailed tion, simply press the level of graphs, in shallow to medium noise rejection desired, from 0 to depths when trolling. It will show proper fish arches at 4, then the Disc (Discrimination) low speeds and keeps high speed key. There should be an immediate change in the amount of noise information from being compresent on the paper. The paper speed should ination setting is printed at the be turned down when using the bottom of the paper each time the unit in deep water. This will prelevel is entered and at intervals vent gapsfrom appearing in the thereafter. In fact, the microcomputer will automatically slow the maxshipped from the factory, the Discrimination level is set to 1. imum speed of the chart paper The Discrimination function can when operating in deep water. be disabledat any time by pressTo change the speed of the ingO-DISC. chart paper, simply press the new level desired, from 0 to 7, then Example: Enter a Discrimination level of 4. The paper speed should change FIGURE 7 immediately. ----0. 0---- Remember, if gaps in the record appear, turn the paper speed down until a solid record is achieved. The paper speed may also be slowed when not looking for fish or to simply conserve paper. [. . . ] Move the front of the belt DOWN to position the stylus at the center N2. o 12. 0 f , [ . ai'o. m I 41 FIGURE 24 3. Move the stylus bolt DOWN, to position the marking stylus on the back side of the platen. NEVER move the belt up -- it could damage the stylus. Hold the stylus belt stationary with one finger, and remove the old stylus by starting at its left edge and moving it out from under the tabs on the stylus holder. FIGURE 36 7. [. . . ]