XAV-AX210
23
Sony CONFIDENTIAL
For Authorized Servicer
SECTION 4
ELECTRICAL ADJUSTMENT
If any of the following parts was replaced, execute the “FLICKER
ADJUSTMENT” as mentioned below.
• MAIN
board
• TFT
board
• TFT
(6.4)
FLICKER ADJUSTMENT
Note:
Remote commander is necessary for
fl
icker adjustment operation.
Procedure:
1. Turn the power on this unit, and perform the aging more than
fi
ve minutes.
2. Press the [HOME] button on the main unit.
[HOME] button
(Displayed screen in the above
fi
gure are example)
3. Press the [OFF] button on the remote commander to the state
of source off, pressing the buttons on the remote commander in
order of the [4]
→
[5]
→
[4] (press only the [4] button for two
seconds).
(Displayed screen in the above
fi
gure are example)
4. The test mode 4 starts, and the following screen is displayed.
back ground : test pattern by SPH8388
VCOM_DC : 46
OK
(Displayed values in the above
fi
gure are example)
5. Press the [VOL +] or [VOL
−
] button on the remote commander
to adjust so that the
fl
icker becomes minimum in the sight.
(There is a point most suitable in the range of VCOM DC: 25 to
VCOM DC: 55)
Press the [VOL +]
button once.
3UHVVWKH>92/í@
button once.
back ground : test pattern by SPH8388
VCOM_DC : 46
OK
back ground : test pattern by SPH8388
VCOM_DC : 48
OK
back ground : test pattern by SPH8388
VCOM_DC : 44
OK
(Displayed values in the above
fi
gure are example)
The relation between the
fl
icker and the adjustment value has the
characteristic such as the following
fi
gure.
Example of characteristic:
Flicker
VCOM DC value
m
good
bad
o
6. Touch the [OK] on the touch panel on the main unit, then turn
the power off.
Turn the power off.
back ground : test pattern by SPH8388
VCOM_DC : 46
OK
Touch the [OK]
(Displayed screen in the above
fi
gure are example)
MONITOR SECTION
SYS SET
2018/09/12 22:50:21 (GMT+09:00)
