Nokia 447PRO - Site Preparation; Location Recommendations; Troubleshooting Common Issues

447R
14
2. Site Preparation
2.1. Location
This Monitor is designed for normal office conditions. It is equipped with own power supply. It is not
to be serviced or repaired on site
2.2. Troubleshooting
Local service facilities should perform simple maintenance such as trimming. More advanced ma in-
tenance and repair that requires replacement of components which in turn requires testing a nd re-
trimming should be carried out in a central workshop.
Symptom Measures
Picture
screen is
blank
The indi-
cator on
the front
panel is
not illumi-
n
a
t
e
d
Check that the power cord is correctly connected to the monitor and to the power
outlet . If the monitor is powered through the computer, check that the computer is
switched on with the mains switch. Use a desk light, for example, to verify that
current is connected to a power outlet. If no electricity is connected to the outlet,
call an electric ian.
nated
Unplug the monitor from power outlet for about one minute.
The indi-
cator on
t
h
f
t
Check that the signal cable connector is connected. If the connect or is loose
tighten the connector’s screws.
the front
panel is il-
l
u
m
i
n
a
t
e
d
The Monitor might be in stand --- by position. Push one of the buttons or move the
mouse.
l
u
m
i
n
a
t
e
d
U
n
p
l
u
g
t
h
e
m
o
n
i
t
o
r
f
r
o
m
o
u
t
l
e
t
f
o
r
a
b
o
u
t
o
n
e
m
i
n
u
t
e
U
np
l
ug
t
h
emon
i
t
or
f
rom ou
t
l
e
t
f
or a
b
ou
t
one m
i
nu
t
e.
Switch off the monitor and the computer. Remove the signal cable from the
computer. Switch on the monitor using the power switch. If the Selftest menu
appears on the screen, it is evident that the monitor functions correctly and
the problem is caused by an error in other parts of the system.
Check the signal cable’s connection pins. If the pins are slightly distorted,
usenoseplierstostraightenthem.
The Selftest menu appears. The computer may use a timing values which are
out of the monitor’s synchronizatio n range.
Picture has colour de-
f
t
Demagnetize the monitor.
fects
If colour defect is repeated without the monitor having been moved, it is possible
that the monitor is influenced by a strong magnetic interference field (near to
a high power cable, for example). Try to find a better location for the monitor or
the interference source. Note that another monitor placed too near (less than
30 cm.) may als o generate interference in the picture.
Picture has strong color
defect,
Open the Miscellaneous/Selftest menu. Check the color of the Red, Green and
Blue bars. If they have pure color s, the fault is not in the monitor. Check signal
cable connectors and the computer. If the menu itself and the color bars are
discolored, the monitor is obviously damaged.
Pictureisstablebutdis-
torted
Your computer may use a timing for which the corresponding picture characteris---
tic adjustments have not been set at the factory. Adjust the picture characteristics
Picture is unstable Check the proximity of other electrical devices that generate magnetic fields,
such as speakers, other monitors, electric fans and fluorescent light fixtures.
s
u
c
a
s
s
p
e
a
e
s
,
o
t
e
o
t
o
s
,
e
e
c
t
c
a
s
a
d
u
o
e
s
c
e
t
g
t
t
u
e
s
Make sure your computer and video card are properly co nfigured for your
monitor.
The automatical appearance of the Selftest menu on the screen means that the signal is faulty or
missing.