Tactic TTX850 8-Ch SLT Computer - Manual (Page 4)

4
INPUT POWER
One assembled 4.8V 1000mAh nickel-metal hydride (NiMH) battery pack is included. Optional 1.2V NiCd
or 1.5V alkaline batteries can be used with an optional 4-cell fl at battery holder with universal connector.
Do not mix cell types, or old and new cells, etc.
Battery voltage is shown on the LCD’s home screen for easy monitoring. A “LOW BATTERY” warning will
show when battery power drops to the voltage value shown in the BATTERY ALARM screen as described
on page 8.
WARNING! Never operate an R/C model with weak Tx batteries! Reduced operational
range and/or possible loss of control of the aircraft could result. Replace weak alkaline
batteries, or re-charge NiCd or NiMH batteries, before attempting a fl ight!
A “Tx Battery” timer in the TIMER menu described on page 18 can track the total amount of time the
transmitter has been operational.
See the ACCESSORIES section on page 28 for optional batteries and chargers available at local hobby
retailers.
CHARGE JACK AND CHARGING RECHARGEABLE BATTERIES
The charge jack should only be used for rechargeable batteries. Do not try to
recharge alkaline batteries. Charge adapters for Futaba ® brand transmitters are
compatible, with the center pin being positive polarity. The Tx power switch must
be in the OFF position to recharge batteries. For depleted batteries, connect
the included TC100 charger to the Tx charge jack and allow to charge for 10 to
12 hours. Charge is being delivered to the battery when the charger’s LED is red. The battery is fully charged
when this LED is green, and the charger should be disconnected. Do not allow charger to remain connected
indefi nitely. Do not charge batteries at greater than 1 amp. Cycling of the Tx batteries can be accomplished
through this jack. Misuse, improper charging, or over-charging of rechargeable cells can result in damage
to the cells that could include cell rupture, explosion, or fi re!!
WARNING! Do not accidentally short circuit the terminals inside the charge jack, as
this can cause permanent damage to the radio’s charge circuitry and battery and void
the warranty.
POWER LED
The blue LED illuminates when the power switch is turned on and ample voltage is supplied by the battery.
This LED will fl ash if battery voltage drops to the voltage set in the BATTERY ALARM setting described
on page 8.
All channels are fully proportional, depending if controlled by a switch or mixed to another proportional
channel. Channels 5-8 can be controlled by a non-proportional switch or proportional side lever. However,
if a proportional channel (1-4) is mixed to channel 5-8 these channels can provide proportional control.
Aircraft control is accomplished through various devices by the pilot (sticks, switches, etc.), and other control
inputs can be manipulated electronically by the Tx to alter the control signals before they are delivered to the
TTX850 POWER SYSTEM
TTX850 Charge Jack
FLIGHT CONTROLS