Electrical Adjustments; Preparations; Equipment Required; Factory Mode Setting - Sony VPL-CX11 Service Manual

2-1. Preparations

2-1-1. Equipment Required

. . . . . Oscilloscope
Tektronix 2465 or equivalent
(bandwidth: 350 MHz or more)
. . . . . NTSC, PAL, SECAM component signal generator
Tektronix TG2000 + AVG1 (optional module) +
AWVG1 (optional module) or equivalent
. . . . . VG (Programmable video signal generator)
VG814 or equivalent
. . . . . Digital voltmeter
Advantest TR6845 or equivalent
. . . . . Luminance meter
Note : Perform the following adjustments at least 5 minutes after turning on
the power.

2-1-2. Factory Mode Setting

1. Make sure that the STATUS in the menu is ON.
2. Exit the menu.
3. Press the keys in the following ORDER:
"ENTER" → "ENTER" → "LEFT" → "ENTER"
4. The message "Do you wish to enter into the FACTO-
RY MODE?" will be displayed.
5. Select YES.
VPL-CX11
Section 2

Electrical Adjustments

2-2. V-COM Adjustment

1. Input the green-only 1H inverted signal to INPUT-A.
2. Set the CONTRAST to 50 and BRIGHT to 50.
3. Set the screen to G VCOM adjustment of [Device
Adjust].
Adjust the G VCOM so that the flicker on the screen is
the minimum.
4. Input the red-only and blue-only 1H inverted signal
respectively and adjust R VCOM and B VCOM
respectively so that the flicker becomes minimum.
5. Store the adjustment value in the memory.
6. Select the projection of vertically reversed from the
front [CEIL. FRT] using the menu screen.
7. Enter the G VCOM adjustment screen of the [Device
Adjust]. Adjust for the same value as step 3.
8. Connect the 1H-inverted single color signal of red then
blue to the input connector. Adjust for the same value
as step 4 using the R VCOM and B VCOM
respectively.
9. Store the adjustment value in the memory.
2-1