Hitachi CP-RX79 - Manual (Page 69)

60
Phenomenon Cases not involving a machine defect
Reference
page
Pictures appear
dark.
The brightness and/or contrast are adjusted to an
extremely low level.
Adjust the BRIGHTNESS and/or CONTRAST settings to a
higher level using the menu function.
25
The ECO MODE function is working.
Select the NORMAL for the ECO MODE item in the SETUP
menu. 33
The lamp is approaching the end of its product
lifetime.
Replace the lamp.
50, 51
Pictures appear
blurry.
Either the focus and/or horizontal phase settings are
not properly adjusted.
Adjust the focus using the focus ring, and/or the H PHASE
using the menu function.
16, 29
The lens is dirty or misty.
Clean the lens referring to the section “Caring for the lens”.
54
Some kind
of image
degradation
such as
ickering or
stripes appear
on the screen.
When the projector is operating in Eco mode,
ickering may appear on screen.
Set ECO MODE to NORMAL, and set AUTO ECO MODE to
OFF, in the SETUP menu.
33
The OVER SCAN ratio is too big.
Adjust OVER SCAN in the IMAGE menu smaller.
28
Excessive VIDEO NR.
Change the setting of VIDEO NR in the INPUT menu.
30
The FRAME LOCK function cannot work on the
current input signal.
Set FRAME LOCK in the INPUT menu to OFF.
31
Troubleshooting
• Although bright spots or dark spots may appear on the screen, this
is a unique characteristic of liquid crystal displays, and it does not constitute or
imply a machine defect.
NOTE
Phenomena that may be easy to be mistaken for machine defects (continued)