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Auto Convergence Offset; Picture Center Adjustment; White Balance Adjustment; Sub Bright Adjustment - Sony KP-48PS1 Service Manual

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6-3. AUTO CONVERGENCE OFFSET

This adjustment must be performed after the registration adjust-
ment was made or after readjustment was made by any reason.
1. Darken the periphery of this set.
2. Enter the PAL SPCB signal to set the DRC100 (PAL) mode.
3. Select the Projector Engine mode.
4. Press "
(AUTO CONVERGENCE)" button on the front
panel of the set.
5. In the same manner, select DRC50 (PAL) and DRC100
(PAL/16 : 9) modes respectively, and press the "
CONVERGENCE)" button in the Projector Engine mode.
6. Enter the NTSC signal, and perform the same steps in the
DRC100 (NTSC) and DRC50 (NTSC) modes respectively.

6-4. PICTURE CENTER ADJUSTMENT

1. Enter the SPCB signal.
2. Select the TT mode, and press "3"+"2" buttons on the
commander.
TT32 : Horizontal center adjustment for MID-X input
3. Pressing b or B key on the joystick, move the picture in
horizontal direction to center the picture on the OSD mark.
4. Press "
(TV MODE)" or "
mander to return to normal TV mode.
Adjust picture center to
the position of this OSD mark.
(AUTO
(OK)" button on the com-
– 41 –
6-5.

WHITE BALANCE ADJUSTMENT

1. Enter the monoscope signal.
2. Press "MENU" button on the commander to enter the Picture
Adjustment menu.
3. Set the Picture Mode to "Personal", and the Digital Mode to
"DRC100".
4. Enter the Service menu, and select "Device Register Set-
ting" b "Backend".
5. Adjust "13 Sub Bright" so that 10 IRE section barely grows.
6. Enter all-white pattern signal.
7. Fix "17 G-Cutoff" to "31", and adjust "15 R-Cutoff" and "19
B-Cutoff" so as to attain the optimum white balance.
8. Adjust "13 Sub Bright" so that 100 IRE section barely
grows.
9. Adjust "10 R-Drive" and "12 B-Drive" so as to attain the
optimum white balance.
10. Repeatedly adjust the white balance for the minimum and
maximum picture setting.
6-6.

SUB BRIGHT ADJUSTMENT

1. Enter the monoscope signal.
2. Press "MENU" button on the commander to enter the Picture
Adjustment menu.
3. Set respective items as follows:
• Picture Mode c Personal
• AI (Artificial Intelligence) c OFF
• Contrast c Minimum
• Brightness c 50%
4. Enter the Service menu, and select "Device Register Set-
ting" b "Backend".
5. Adjust "13 Sub Bright" so that the border between 0 IRE and
10 IRE becomes distinct.
KP- 48PS1/53PS1/61PS1
48PS1K/53PS1K/61PS1K
K
RM-892

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