DSX12 Instruction & Programming Manual - MacGregor Industries

ChargingTransmitter/ReceiverNote: It is imperative that you fully charge both thetransmitter and the receiver battery packs prior to eachflying session and that you check the condition of thereceiver battery between each flight using a reliable batterytester with a built-in load. The included wall chargercharges at a 250mA rate. In order to fully charge theincluded batteries, it’s necessary to leave the charger andbatteries hooked up to the included wall charger for 8–10hours.An optional fast charger can be used to charge both thetransmitter and receiver batteries, however, it’s imperative thatthe batteries are properly charged and the charge conditionbe checked prior to flight. “False Peaking” is a commonoccurrence with many fast chargers/batteries, giving anindication that the battery is fully charged when in fact thebattery is only partially charged. False Peaking can lead todisastrous results and it is the pilot’s responsibility to verify thecharge condition of the batteries before every flight. (Also seeReceiver Power Requirements page I-26.)JR Transmitter ChargingThe center pin on all JR ® transmitters is negative. Therefore,the center pin on all JR chargers is negative, not positive. Thisis different from many other manufacturers’ chargers and radiosystems. Beware of improper connections based on “colorcoded”wire leads, as they may not apply in this instance. Youmust make sure that the center pin of your JR transmitter isalways connected to the negative pole for correct polarity.Note: When using a fast charger to charge the transmitterbattery, do not exceed 1.5 amps (or 1500mA) charge rateor damage to the transmitter or battery can occur.Using the Included ChargerThe pilot lamps should always be on during the chargingoperation. If not, check to make sure that both the transmitterand receiver are switched off.Do not use the charger for equipment other than JR. Thecharging plug polarity may not be the same. Equipment damagecan result.Do not use other manufacturers’ after-market accessories thatplug into the transmitter’s charging jack if you are unsure ofthe polarity compatibility with your radio. Seek expert advice toavoid possible damage.During the charging operation, the charger’s temperature isslightly elevated.Charger Pigtail for TransmitterBLACK TO POSITIVEBLACK W/WHITE STRIPE TO NEGATIVETransmitter Charge Jack Polarity- +I-14