User manual LOWRANCE LRG-1510C

[. . . ] INSTALLATION AND OPERATION MANUAL MODEL LRG-1510C GRAYLINE® RECORDER · LOWRANCE Printed in U. S. A. 74128 ELECTRONICS, INC. PDF compression, OCR, web-optimization with CVISION's PdfCompressor NOTICE Periodically wash the Transducer Face with soap and water to removeanyoil film thatmay collect Oiland dirton the facewill reduce sensitivity or may even prevent sounding. GOT A PROBLEM?LET US HELP! It youhavea problem with your sonar unit, please give us a chance to help before sending it in for repair. Write or call one ofour Authorized Service Centers or the Lowrance Electronics, Inc. , Customer Service Department in Tulsa, OK. [. . . ] Its controls are simple enoughfor the occasional fisherman, and flexible enough to satisfy the most demanding of pro. Weencourage youto studythe remainder this booklet to getthe most from your investment and to boost your boating and fishing pleasure. Fig. After installing, if the stylus won't print all the way down the paper, (See Figure 37) bend the right leg down so that more pressure is exerted against the stainless steel plate. If it still does not print all the way, bend the left leg down more (but not so far that it digs intothe paper). Latch both catches on the top of the case. STYLUS BELT REPLACEMENT -- CAUTION -- High voltage is present in the electronicsection when the unit is turnedon. 1. Pull out and down onthe top of the casefront to expose the stylus belt. The stylus belt rides over two wheels located at the right edge of the platen assembly. Pull out and down on thetop of the case front to expose the stylus belt. The stylus belt rides over two wheels located at the right edge of the platen assembly. Move the front of the beltDOWN to positionthe stylus at the center of the platen. Fig. Hold the stylus beltstationary with one finger, and remove the oldstylus by starting at its leftedge and moving it out from underthe tabson the stylus holder. The positive conducterin the power cable is the centerconductor. The unit is protected from accidental polarity reversals and no damagewill resultif battery connections are wrong. Before installing the new stylus, be sure it is bent properly by comparing it to Figure 35. Refer to Figure 36 to be sure thenew stylus is positioned correctly under the tabsonthe holder. Ifnot, bend the stylus away fromthe edge it is rubbing on until it does move freely. 19 PDF compression, OCR, web-optimization with CVISION's PdfCompressor 10. (See Figure 32. ) C--- OPERATION SCALE KNOB -- used to select recording depth. There are four positions: 30 feet 60 feet 120 feet 360 feet Fig. Watch the paper long enoughto be sure it is moving smoothly and evenly across the platen. If the paper flutters or begins to run up-hill', repeat Step 8. ON/OFF AND SENSITIVITY KNOB -- Rotate the On/Off knobclockwise toturntheuniton. TheSensivity knobworks much likethevolumecontrol on a radio, that is, weaker signals will be detected with highersettingsof the knob. When cruising, or at other times when just simple bottom-contour information is desired, the Sensitivity setting can be low. In deep wateror over soft, muddy bottoms, (which produce weak echoes), the setting will have to be higher. WhenhighSensitivity settings are used, a second bottom echowill appear Thisis normal and is caused bythe returning signal reflecting off thesurface of the water, making a second trip to the bottom and back. Whendetailed information about brush piles, individual fish or the thermodineis desired, the Sensitivity knob should be setat about 3/4 point. [. . . ] When the fish has moved to the center of the cone, the distanceto it will be shorter, (line "B"), and as it moves out of the cone, the distance will increase again as shown in line "C". If a partial arch occurs most of the time on your unit (the mark curves up but does not curve back down), it is because the transducer is not 5. To remove the full take-uproll, push in and rotate the left paper retainer knob until it snaps out. (See Figure 26. ) The roll can now be easily removed from the paper spool end caps. [. . . ]