Electrical Adjustment - Sony XAV-68BT Service Manual

XAV-68BT
MONITOR SECTION
If any of the following parts was replaced, execute the "Flicker
Adjustment" as mentioned below.
• CHASSIS MAIN ASSY (CHA1)
• FRONT PANEL ASSY (FP1)
• COMPLETE KEY BOARD
Preparation:
• Remote commander (RM-X170)
FLICKER ADJUSTMENT
1. Turn the power on, and perform the aging more than fi ve min-
utes.
2. In the state of source off (Home screen is displayed), pressing
the buttons on the remote commander in order of the [4] → [5]
→ [4] (press only the [4] button for two seconds).
The test mode 4 starts, and the following screen is displayed on
the monitor.
(Displayed colors/values in the following fi gure are example)
PAL_SEL:0
SWAP:0
VCOM:064
TEST 4
3. Press the [ B ] button on the remote commander to set the
"PAT_SEL:9".
4. Press the [ b ] button on the remote commander to set the
"SWAP:0".
5. Press the [ V ] or [ v ] 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:045 to
VCOM:090)
The relation between the fl icker and the adjustment value has
the characteristic such as the following fi gure.
Example of characteristic:
VCOM value
6. Press the [PUSH SOURCE/ OFF] button on the main unit,
and turn the power off.
20
SECTION 4

ELECTRICAL ADJUSTMENT