Electrical Adjustment - Sony XAV-AX210 Service Manual

XAV-AX210
MONITOR SECTION
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)
23
SECTION 4

ELECTRICAL ADJUSTMENT

5. Press the [VOL +] or [VOL −] button on the remote commander
Example of characteristic:
6. Touch the [OK] on the touch panel on the main unit, then turn
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)
back ground : test pattern by SPH8388
VCOM_DC : 46
Press the [VOL +]
button once.
back ground : test pattern by SPH8388
VCOM_DC : 48 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.
VCOM DC value
the power off.
Touch the [OK]
back ground : test pattern by SPH8388
VCOM_DC : 46 OK
(Displayed screen in the above fi gure are example)
Sony CONFIDENTIAL
For Authorized Servicer
OK
button once.
back ground : test pattern by SPH8388
VCOM_DC : 44 OK
Turn the power off.
SYS SET