JVC LCT2505-001A-H Manuale Utente

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Self-diagnostic indication
When something abnormal occurs with the monitor, this function informs you of the condition of the monitor 
with the self-diagnostic lamps, allowing for smooth service work.
If the monitor screen turns off and the self-
diagnostic lamps light or flash
If the self-diagnostic lamps light or flash in red, check 
the following before consulting the dealer where you 
purchased the monitor.
•  If the self-diagnostic lamp 1 lights, lamp 2 flashes, 
and lamp 3 lights.
  This may be caused by the dusty intakes on the 
rear and top. If this happens, switch off the main 
power using the power switch (set to “
‡ (off)”), 
unplug the AC power cord, then clean the intakes 
by referring to the instruction on page 3. 
  After cleaning, switch on the monitor’s main power 
again. If the self-diagnostic lamps do not go off, 
consult your dealer immediately.
If the trouble still persists, follow the procedure below:
1   Check which lamps are lit or flashing.
On the Self-diagnostic Report Sheet (below), check the box next to “Lights” or “Flashes” of the 
corresponding lamp or lamps.
•  Only one lamp may light or flash, or all three lamps may do so.
2   Switch off the POWER switch on the back of the monitor.
3   Unplug the power cord.
4  Call your dealer and tell them which lamps are lit or flashing. (Copy and fax the Self-diagnostic Report 
Sheet below.)
NOTE
•  If you switch on the main power immediately after switching it off (or after recovering from a brief power 
interruption), the self-diagnostic lamps may light (or flash), and no image may appear on the screen. In 
this case, switch off the main power again, wait for about 10 seconds, then switch it on again. If no self-
diagnostic lamps light or flash, you can operate and use the monitor as usual.
Self-diagnostic Report Sheet
Store name where you purchased the monitor
To
Model name: 
LCD DISPLAY MONITOR
  GM-F470S/GM-F420S
The self-diagnostic lamps light or flash as listed on the following table. Please give me immediate 
advice or service if necessary.
Self-diagnostic lamp
No.
Lamp position
Conditions
1
Upper
& Lights
& Flashes
2
Middle
& Lights
& Flashes
3
Lower
& Lights
& Flashes
TEMP. OVER
& Lights
& Flashes
Your Name
Telephone 
No.:
Address:
Troubleshooting 
(cont.)
If the monitor screen dims a little and “TEMP. 
OVER” appears (or flashes)
If “TEMP. OVER” appears or flashes at the left top of 
the screen, check the following before consulting the 
dealer where you purchased the monitor.
“TEMP. OVER” appears to warn you of internal heat 
buildup, which is usually caused by accumulated 
dust around the intakes or by improper installation. If 
the cause of the internal heat buildup is eliminated, 
this indication disappears and the screen returns to 
normal brightness.
•  If “TEMP. OVER” flashes in yellow
  This may be caused by the dusty intakes on the 
rear. If this happens, switch off the main power 
using the power switch (set to “
‡ (off)”), unplug the 
AC power cord, then clean the intakes by referring 
to the instruction on page 3.
–  After cleaning, switch on the monitor’s main 
power again. If “TEMP. OVER” still flashes, this 
problem may be caused by improper installation 
or improper location of the monitor. In this 
case, consult your dealer immediately to solve 
this improper installation and to improve the 
circumstances around the monitor.
•  If “TEMP. OVER” appears in red
  “TEMP. OVER” will be shown for about two 
minutes, the monitor will shut off automatically, 
then the self-diagnostic lamps light in red. If this 
happens, switch off the main power using the 
power switch (set to “
‡ (off)”), unplug the AC power 
cord, then consult your dealer immediately.
Self-diagnostic lamps
“TEMP. OVER” appears here.
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08.12.26   10:35:53 AM
08.12.26   10:35:53 AM