Elenco Electronics RCC-7K Guide de dépannage télécharger pdf (Page 30)

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TROUBLESHOOTING GUIDE

Symptom: Car does not go in a straight line when you release the right control lever.

• Adjust the front wheels alignment control on the underside of the Bottom Frame, as you did in assembly

step 24.

Symptom: Car doesn’t work at all.

• Make sure that the batteries in both the car and the Remote Control Transmitter are strong and that they

are installed with the positive and negative terminals positioned properly. Alkaline or rechargeable nickel-

cadmium batteries are highly recommended, and new ones will last for 30-40 minutes of continuous use.

Do not mix old and new, and and different types of batteries.

• Make sure the ON/OFF switches on both car and transmitter are ON. Note: The light bulb in the car comes

on only when the car is moving forwards or backwards.

• Move the Transmitter antenna close to the car antenna to be sure your range is not degraded. If range is

degraded, see the symptom for reduced range (next).

• Be sure that none of the wiring connections were broken, are contacting any other metal (creating a short

circuit), or are wired wrong.

• Be sure that there is no soldering problems or “short circuits” on the Circuit Board. Use the schematic and

theory of operation section as guides.

• Test the Remote Control Transmitter as in assembly step 15.

Symptom: Car has reduced range.

• Make sure that the batteries in both the car and the Remote Control Transmitter are strong and that they

are installed with the positiv

e and negativ

e terminals positioned proper

• Make sure your antenna is properly extended.

• Nearby CB and amateur radio transmitters can interfere with your control of the RCC-7K. Try moving away

from them.

• Re-tune inductor T1 as per the Receiver Alignment on page 26.

• Make sure the wire between the Circuit Board and the antenna in the car is intact and that the antenna

scre

w is tight. Try to v

erify that the antenna actually touches its metal pad on the circuit board.

• Be sure that there is no solder problems or “short circuits” on the Circuit Board. Use the schematic and

theor

y of operation section as guides.

Symptom: Car runs even though the Remote Control Transmitter is off.

• Disconnect the battery in y

our Transmitter to make sure it is not malfunctioning.

• Nearby CB and amateur radio transmitters are interfering with your control of the RCC-7K. Try moving away

from them.

Symptom: Transmitter fails the transmitter test.

• Chec

k that the 9V battery is installed correctly and that your antenna is screwed in tight.

• Unscrew the 2 screws on the bottom of the unit nearest the battery, and snap off the top. Inspect the

transmitter circuit board for problems and broken wires, since most problems are due to connections

breaking loose during shipping. You may use the schematic and theory of operation section as guides.

Symptom:

ont wheels do not turn or barely turn.

• Lift up the front section (to remo

ve friction with the ground) and see if the wheels turn now.

• Be sure the steering motor and turning posts are properly seated, then tighten the screws in the front

section cover and steering motor cover.

• Turn one of the front wheels with your hand and be sure that the other wheel turns in the same direction

and that the Steering Motor Gear is moved along the Front Wheels Steering Bar smoothly.

• Be sure y

ou are pressing both tr

ansmitter le

ers, as per the How To Use It section.

• Check the wiring to the Steering Motor and your assembly of the front section.

• Be sure that there is no soldering problems or short circuits on the Circuit Board. Redo the tests in section

18 Use the schematic and theor

y of oper

ation section as guides

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Elenco Electronics RCC-7K Guide de dépannage Page 30

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