User Manual

ImmersionRC | EzUHF JR Module Manual Supplement

Tip: We often get asked why the LED ‘breathes’ like this. Basically, an LED which fades on and off by

varying the duty cycle is a better indicator of reception quality than a simple on/off LED. While range

testing for example, signal quality can be estimated by looking at ‘stuttering’ in the LED’s fading.

Error/Beep Codes

When the EzUHF JR module detects a problem, it will beep in a sequence of long, and short beeps,

which will indicate what is wrong.

_ .

Transmitter internal error, return for service (Xtal)

_ . .

Transmitter internal error, return for service (TxOvfl)

_ . . .

Detected PCM as opposed to PPM, change R/C Tx Mode to PPM

_ . . . .

PPM not detected at power-up (Tx connected to HT input?)

. . .

PPM Timeout, connection problem between R/C Tx and EzUHF

Common problems are _ . . . which indicates that the R/C Tx is in PCM mode, instead of PPM. The

EzUHF (and all other equivalent systems) require PPM as input, and not PCM.

Another common problem is _ . . . . which indicates that a PPM signal was not sensed, generally

indicating that the R/C Tx is not configured to emit PPM to the module bay connector.

This error may also occur if the R/C transmitter is turned on, and stuck at the ‘switch error’ prompt for

an extended period of time. During this time, the transmitter doesn’t start emitting PPM.