4DRC 4D-V25 Betriebsanleitung - Seite 11

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11.5 Fine tuning function

12. FAQ and solving guidelines:

Question

The aircraft indicator flashes

without any response

The blades of the aircraft rotate

but cannot fly

The aircraft vibrates badly

Fine tuning is done but still can't

make the aircraft stable

After the impact, start the aircraft

again and it fly uncontrollably

Reason

The aircraft has insufficient power

1. Low battery

2.1 Blade deformation

2.2 Installation error of ABC

propeller

Blade deformation

1. Blade deformation

2. Defective motor

The three-axis acceleration

sensor loses its balance due to

impact

1. Fine tuning of aircraft moving forward/backward

When the aircraft leaves the ground and the

aircraft deviates to the rear, press and hold ①

forward fine-tuning key to fine-tune; when the

aircraft deviates to the front, press and hold ②

backward fine-tuning key to fine-tune.

2. Fine tuning of aircraft deviates to the left/right

When the aircraft leaves the ground and the

aircraft deviates to the right, press and hold ③

left fly fine-tuning key to adjust, and when the

aircraft deviates to the left, press and hold ④

right fly fine-tuning key to adjust.

Charge the battery

1. Charge the battery

2.1 Replace the blade

2.2 The fan blades are printed with letters

A, B and C. If fan blade A is broken,

replace A, and if fan blade B is broken,

replace B, so does fan blade C.

Replace the blade

1. Replace the blade

2. Replace the motor

After leaving the aircraft for 5-10 seconds,

or by the horizontal calibration, it will be ok.

For the steps, please refer to the manual,

8.3 horizontal calibration operation.

Solution