Javad Prego, Operator'S Manual

Page: 112 / 152

4-20 Prego Operator’s Manual www.javad.com
O P E R A T I O N
Checking Firmware Version
4
Sleep Mode
Follow these steps to put the Prego into sleep mode. In sleep mode, the
power board will continue to draw power from the batteries, causing the
batteries to drain over time. Put the receiver in Zero Power Mode to prevent
this (see “Zero Power Mode” on page 4-20).
1. Turn on your receiver.
2. Press the receiver’s power key for more than four seconds and less than
eight seconds. The STAT LED will be orange.
3. Any activity on the RS232 port will turn the receiver on.
Notice: If you press the power key for more than 14 seconds, it will be ignored.
This protects receiver operation against stuck keys.
Zero Power Mode
When your Prego is off, even in Sleep Mode, the power board will continue
to draw power from the batteries. This means that if you fully charge your
receiver, turn it off and store it, the receiver will drain its battery power in
less than 2 months. To stop the power board from draining the batteries, put
your receiver in Zero Power Mode.
1. Turn on your receiver.
2. Press and hold the power key for more than eight seconds, but less than
14 seconds; the STAT and REC LEDs will turn orange, then red.
3. When red, release the power key. When these LEDs turn off, your
receiver will be in Zero Power Mode.
4. Press the Reset key for about one second to return to Normal mode.
The batteries will not charge if the receiver is in Zero Power Mode.
Notice: When the internal batteries have completely discharged and no external
power is connected, the receiver will go into Zero Power Mode
automatically to prevent battery over discharge.
Checking Firmware Version
You can use PCView to check the firmware version of your receiver. Check the
Support area of JNS website
(www.javad.com) for current firmware versions.