Hitachi P50A202/D8UF, Service Manual

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D8UF
TABLE OF CONTENTS
19
B. Use the Control Panel (located at the side):
Menu/Select button is for calling the OSD menu or for se-
lecting such menu or any other OSD option.
Input/Exit button is for changing the displayed input or,
when some OSD is beeing displayed, to be able to exit
the highlighted option.
◄ Vol button is for reducing the audio volume or equiva-
lent to the Left cursor key when an adjustment value is
highlighted.
► Vol button is for increasing the audio volume or equiva-
lent to the Right cursor key when an adjustment value is
highlighted.
▲ button is same as the R/C Up cursor button.
▼ button is same as the R/C Down cursor button.
The next fi gures show the side control panel.
2. MEMORY INITIALIZE
The memory initialize operation is to clear the contents of
the data memory and to set all adjustment values to initial
default.
CAREFUL:
The data that will be lost is shown in the section
no. “4 Memory initialize affected adjustments”.
2.1 MEMORY INITIALIZE procedure:
(1) Enter Service Mode by the procedure in section 1.1.
(2) Select the second row of the Adjustment mode which
is “MEMORY INITIALIZE”, by pressing the down cursor
button once.
(3) Push the right cursor key for more than 3 seconds.
NOTE: Until the Memory Initialize operation
fi nishes, do not
unplug the AC cord or neither press the side panel Power
button switch.
(4) The Memory initialize procedure is started by changing
the screen color to cyan and it
fi nishes correctly if it turns to
green color. If it turns to RED color it means an error ocurred
during the memory initialize process.
(5) Once the memory initialize operation is
fi nished,
(6) Plug the AC cord again and turn on the TV set. All set-
tings and data are updated.
3. FACTORY RESET:
The Factory Reset function is to change all the TV user ad-
justments to their default factory shipping conditions.
It is recommended to execute this procedure after all the
servicing adjustments are
fi nished and before returning the
TV set to the owner.
3.1 FACTORY RESET procedure:
(1) Enter Service Mode by the procedure in section 1.1.
(2) The
fi rst row of the service mode menu will be selected,
this is the FACTORY RESET option.
(3) Press the right cursor key (
► ) for more than 3 seconds.
NOTE: Until the factory reset operation fi nishes, do not un-
plug the AC cord or neither press the side panel Power but-
ton switch.
(4) The Factory reset procedure is started by changing the
screen color to magenta and it
fi nishes correctly if it turns to
green color. If it turns to red color it means an error ocurred
during the factory reset process.
(5) Once the Factory reset operation is
fi nished,
(6) Plug the AC cord in again and push the POWER button
to turn on the TV set. All settings and data are updated.
Con fi rm the settings are in factory shipping conditions (refer
to section 5.1 of this manual).
4. Memory initialize, Factory Reset and Protec-
tion data initialization affected adjustments:
The next table shows the adjustment items which are af-
fected by the Memory Initialize, Factory reset operations.
Adjustment Memory INIT Factory Reset
White balance Not Reset Not reset
Sub-Contrast Not Reset Not reset
Clamp offset Not Reset Not reset
Keyed Clamp Control Not Reset Not Reset
Light Sensor Gain Not Reset Not Reset
Picture Quality data Reset Not Reset
Other data Reset Not Reset
Video Menu Reset Reset
Other factory data Reset Reset
POWER
CH
CURSOR
+
_
VOL
INPUT / EXIT
MENU
/ SELECT
Turn off unit with side power switch and
unplug AC cord to reset the digital Circuitry.
Turn off unit with side power switch and
unplug AC cord to reset the digital Circuitry.