V
E R
I
F
O
N E
C
O
N F
I D
E N
T I
A
L
TEM
PL
ATE
R
EV
F
VX 520 3G I
NSTALLATION
G
UIDE
37
C
HAPTER
5
Troubleshooting Guidelines
The troubleshooting guidelines provided in the following section are included to
assist you to successfully install and configure your VX 520 3G terminal. If you
have problems operating your VX 520 3G terminal, please read through these
troubleshooting examples.
If the problem persists even after performing the outlined guidelines or if the
problem is not described below, contact your local VeriFone representative for
assistance. Typical examples of malfunction you may encounter while operating
your VX 520 3G terminal and steps you can take to resolve them are listed.
Blank Display
When the terminal display screen does not show correct or clearly readable
information:
•
Check terminal power connection.
•
Remove and reapply power to the terminal.
•
Check all cable connections and verify that the telephone line is properly
connected.
•
If the problem persists, contact your local VeriFone service provider.
NOTE
The VX 520 3G terminal comes equipped with tamper-evident labels. The VX 520
3G contains no user serviceable parts. Do not, under any circumstance, attempt to
disassemble the terminal. Perform only those adjustments or repairs specified in
this guide. For all other services, contact your local VeriFone service provider.
Service conducted by parties other than authorized VeriFone representatives may
void any warranty.
CAUTION
Using an incorrectly rated power supply may damage the terminal or cause it not
to work as specified. Use only a VeriFone-supplied power pack with the correct
output ratings. Before troubleshooting, ensure that the power supply being used
to power the terminal matches the requirements specified on the bottom of the
terminal. (See
for detailed power supply specifications.) Obtain the
appropriately rated power supply before continuing with troubleshooting.
