3-4. SCREEN (G2)
1.Input a dots pattern.
2.Set the PICTURE and BRIGHTNESS controls at minimum and COLOR control at normal.
3.Adjust SBRT, GCUT, BCUT in service mode with an oscilloscope as shown below so that voltages on the red, green, and blue cathodes are 170 ± 2.0 VDC.
4.Observe the screen and adjust SCREEN (G2) VR in FBT to obtain the faintly visible background of dot signal.
3-5. METHOD OF SETTING THE SERVICE ADJUSTMENT MODE
Service Mode Procedure
1. Standby mode (power off).
2. | Display |
|
| Channel 5 |
| Sound volume + |
| Power |
|
|
|
|
on the Remote Commander (press each button within a second).
Service Adjustment Mode In
1. The CRT displays the item being adjusted.
Disp. Item
(Item) Data
SERVICE HSIZ 0
2.Press 
or 
on the Remote Commander to select the item.
3.Press 
or 
on the Remote Commander to change the data.
4.Press 
then 
to save into the memory.
Service Adjustment Mode Memory
Turn set off then on to exit service adjustment mode.
3-6. WHITE BALANCE ADJUSTMENTS
1.Input an entire white signal with burst.
2.Set to Service Adjustment Mode.
3.Set the PICTURE and BRIGHTNESS to minimum.
4.Adjust with SBRT if necessary.
5.Select GCUT and BCUT with 
and 
.
6.Adjust with 
and 
for the best white balance.
7.Set PICTURE and BRIGHTNESS to maximum.
8.Select GDRV and BDRV with 
and 
.
9.Adjust with 
and 
for the best white balance.
10.To write into memory, press 
then 
.
— 19 —