Pioneer 504CMX - PDP - 50" Plasma Panel Technical Manual page 48

8. Troubleshooting
Problem
• Stripes appear on the
screen.
• Sound is heard from
inside the unit.
• Fan isn't moving.
• Fan speed changes.
• ON (green) indicator
doesn't light.
About the self diagnosis mode
Messages appear on the bottom of this unit's screen to indicate operation or connection faults. After message
confirmation, check the condition of the unit.
Error messege
CAUTION
OUT OF RANGE
or
CAUTION
UNSUPPORTED SIGNAL
or
SIGNAL NG
WARNING
THERMAL ALERT
SHUT DOWN (**)
WARNING
FAN FAILURE
SHUT DOWN (**)
ERROR
INVALID KEY ENTRY
SHUT DOWN (**)
* In the above, messages contents indicated by (**) represent numerals.
48
• May be caused by radio wave mingling from TV station, FM station, amateur radios,
public radios (simplified radios) etc., or a nearby personal computer, TV, or video/
audio component.
• A strong electromagnetic field may cause picture distortion and similar problems.
• Normal sound of the cooling fan and internal sliding parts of the plasma display
panel. Not a malfunction.
• Fan is set to operate only after ambient temperature exceeds 35°C (differs
depending on installation conditions). Not a malfunction.
• Fan speed changes automatically in accordance with ambient conditions. Not a
malfunction.
• The ON indicator may not light in some cases, depending on the settings performed
by the installer. Consult with your installation technician.
• A signal not supported by the device is input.
Check the "Computer signal compatibility table" and change the PC output signal
setting.
• Turn off the main power of the plasma display.
• Check whether the surrounding temperature is high.
• If the cooling vents on the display are blocked, remove the obstacles blocking the
vents.
• The fan is giving trouble.
• Immediately turn off the main power of the plasma display and contact the Pioneer
service center or dealer.
• An invalid operation was attempted. Check the input signals, connections and
settings.
• Turn off the main power of the plasma display, wait 1 or 2 minutes and turn the
power ON again. If the problem still persists, remove the power plug from the outlet
and contact a Pioneer service center or dealer
Possible Solution
Remedy