Sony XAV-701BT, Service Manual

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XAV-701BT/741
30
2. FLICKER ADJUSTMENT
Note 1: Perform adjustment of NTSC/PAL separately.
Procedure:
1. The setting of “1. SETTINGS” is completed.
2. Input the NTSC or PAL white 40% raster signal from AUX2
IN jack on the rear side of main unit.
3. In the state of source off, press the [4] → [5] → [4] (keeps
pressing) button on the remote commander.
The test mode 4 starts, and the “T4” is displayed on the moni-
tor.
Screen display
4. “dr0” is input by the communication software and “Enter” key
is pressed.
The following numerical value returns from the set.
(Following characters/values are example)
dr0
VCom1_Bias :
0x03E901A0
Vcom1_p : 0x03E901D6
Vcom2_Bias : 0x04B00210
Vcom2_p : 0x03E901D6
5. To change the adjusted value, “dw0 ####” is input by the com-
munication software and “Enter” key is pressed.
The following numerical value returns from the set.
• NTSC adjustment
dw0 03E9####
VCom1_Bias : 0x03E9####
Vcom1_p : 0x03E901D6
Vcom2_Bias : 0x04B00210
Vcom2_p : 0x03E901D6
• PAL adjustment
dw1 04B0####
VCom1_Bias : 0x03E901A0
Vcom1_p : 0x03E901D6
Vcom2_Bias : 0x04B0####
Vcom2_p : 0x03E901D6
####: Hexadecimal (“0000” to “FFFF”)
Adjust so that the fl icker becomes minimum in the sight by ad-
justing 10 steps of hexadecimal values at a time up and down.
6. “ds” is input by the communication software and “Enter” key
is pressed and the numerical value is saved.
Note 2: Change is intelligible, when it changes into the home screen.
7. The “Reset” button is pressed and turn the power off.
Example of characteristic:
Flicker
Setting value (decimal)
bad
o
m
good