Common Malfunctions And Remove - Newland NLS-PT850 User Manual

Common Malfunctions and Remove

Malfunction Description
LCD screen does not work
The time of usage is not long after a
full charged.
Unable to operate
RS232 Communication
Unable to operate
Infrared Communication
Receive error code for the RS232 or
Infrared Communication
The indicator light is not on when
to charge
Death
Dial-up of GPRS and CDMA fail
Unable to read bar code
nlscan.com
1. Examine whether power is turned on or enter the state of dormancy
2. Examine whether the battery is out of power or a badness contact.
3. The application program loaded crashes in the system.
1. Examine whether the battery is charged full enough.
2. Examine whether the battery is invalid. If invalid, please exchange
a new one.
1. Examine whether the communication interface is inserted correctly
2. Examine baud rate setting are same for both communication inter-
faces of PT800 and PC.
1. Examine whether the multi-function base is powered.
2. Examine whether the infrared interface of PT800 aims at the one to
multi-function base correctly.
Examine baud rate setting are the same for both communication
interfaces of PT800 and PC.
Examine whether the power line to PT800 or to the multi-function
base is inserted correctly or not.
Please press the RESET button at the back of the device with a
paper clip or other thin object.
1. Please examine the current electric quantity in battery is enough if
embedded GPRS/CDMA modem in use, or it will fail the operation for
the embedded GPRS/CDMA modem.
2. Make sure whether the function of GPRS/CDMA in SIM card is
paid enough or lack of payment.
3. Please pay attention to the message of information intensity shown
in screen the process of dial up of GPRS/CDMA, such as: "＋CSQ:
27，99", of which, 27 is the value to reflect the signal intensity,
arranging between 8～31; the signal in wireless network is too weak if
less than 8, while cannot accept any network signal if it is 0 or 99, both
make you unable to connect to GPRS/CDMA.
4. if the wireless network is busy, it is probably to put you out of the
connection to GPRS/CDMA for the time being, you may try it later.
1. the way to read code is wrong. Please refer to the correct way in the
Section of Reading Code in this manual.
2. Whether the setting of code is readable.
3. maybe it is unable for the device to read the code of type
Simple way to remove
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