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INSTALLING THE POWER CABLE 
 
The PC-3 power cable is supplied with your Chart. It has a red lead and black lead. Connect your 
unit to a 12 volt DC power source. Red cable to a ( + ), black to negative (-). A THREE AMP SLO-
BLO AMP FUSE SHOULD BE INSTALLED BETWEEN THE RED CABLE AND POSITIVE POLE 
ON YOUR 12 VOLT BATTERY. 
 
Some boats are equipped with a fuse panel, generally located beneath the console. The power 
source can be wired into the fuse panel, HOWEVER IT IS RECOMMENDED THAT THE POWER 
CABLE BE WIRED DIRECTLY TO THE BATTERY. 
 
Important: Although your power connector is made to plug in only one way, it can be forced on 
incorrectly. N this is done, it may cause damage to your unit. So observe the offset of the power 
plug pins and connect it to the control head accordingly. 
 
Note: It is recommended that all cables for your chart (transducer and power) be positioned as far 
away from all other wires and controls as possible. It is especially important that these cables be 
located away from the ignition system to reduce the risk of interference in the unit. 

Summary of Contents for CH Thirty II

Page 1: ......

Page 2: ...the back side when removing or inserting the cartridge The stylus picks up the signal from the brass bar with which the right hand element makes contact This signal is transmitted through the stylus...

Page 3: ...If this is the case we recommend you contact a dealer regarding availability Determine a suitable location where a smooth flow of water will pass across the transducer face Figure 4 The bolts connect...

Page 4: ...cer be mounted by someone familiar with the use of Fiberglass resin For this reason Techsonic Industries Inc will not be responsible for any damage due to the mounting of your transducer in this manne...

Page 5: ...l a smooth finish is obtained The divider of the two part Humminbird epoxy kit is then removed and the two parts mixed together thoroughly for about five minutes By clipping one corner of the plastic...

Page 6: ...he fuse panel HOWEVER IT IS RECOMMENDED THAT THE POWER CABLE BE WIRED DIRECTLY TO THE BATTERY Important Although your power connector is made to plug in only one way it can be forced on incorrectly N...

Page 7: ...speed To decrease the paper speed turn the paper speed control clockwise It is possible that in turning the control to its furthest clockwise position the paper will stop advancing If this happens tu...

Page 8: ...ill have no effect on the speed of the paper Your Humminbird chart paper is lined and these lines can help pinpoint your target by knowing the depth represented based upon the depth range of the unit...

Page 9: ...oard will also cause surface noise to be displayed This condition can be altered by turning down the sensitivity control or by advancing to the next depth range Some readings such as bait fish schools...

Page 10: ...ping or removing the viewing window the stylus must be moved to the back of the bottom pulley out of the way to avoid damage Photo1 With the thumb and forefinger squeeze the release mechanism The pape...

Page 11: ...core Note Be sure the paper is taped on square Roll several turns around the core be sure it is rolled straight on the core This is important Stretch the paper tight across the front of the cartridge...

Page 12: ...The cartridge will go in either way Make sure your printed edge of the chart paper is always at the bottom of the cartridge Rotate the stylus belt downward by hand to insure that the paper is install...

Page 13: ...e be removed and stored in a warm dry place This will prevent the paper from swelling possibly causing a feed problem Note Spare cartridges are available A pre loaded cartridge will save time and can...

Page 14: ...int of the stylus is smoothed off Note Periodically clean the bass stylus bar on the right of the belt occasionally sanding lightly to prevent the stylus from grooving the bar INTERFERENCE SOURCES The...

Page 15: ...l be treated as a delicate instrument 1 Keep your unit clean by wiping inside and out with a damp cloth 2 Remove it from the boat when not in use Store in a cool dry place 3 In extremely cold temperat...

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