ADJUSTMENTS
IMPORTANT NOTICE
Do not attempt to adjust the following service adjustments except when adjustments are required in servicing
otherwise it may cause loss of performance and product safety.
6. Select item no.3 OREGULAR 3, GRY� (G-Drive) or 4
+ B VOLTAGE ADJUSTMENT
OREGULAR 4, GRY� (B-Drive) and adjust both initially
1. Receive white raster pattern.to 3F.
2. Set controls to normal.7. Change data value of each item by using LEVEL + or
3. Connect digital voltmetre to test point TP-B and GND.LEVEL - button to obtain the proper white balance.
4. Adjust voltage to 145 ?0.5V by using VR641.
PCC ADJUSTMENT
PCC ADJUSTMENT
1. Receive cross hatch pattern and set screen mode to
AGC ADJUSTMENT
OFULL�.
1. Input and tune an RF signal which is UHF to the clear-2. Enter to the service mode and select mode OWIDE�,
est station.and select item no. 7 OWIDE 7.P PCC�.
2. Connect digital voltmetre to test point TP-A3. Press the and GND.LEVEL+ or LEVEL - button to adjust the
4. Enter to the service mode and select mode OREGU-vertical line to be straight.
LAR�, and select item no.1 OREGULAR 1, AGC�.
5. Press the LEVEL+ or LEVEL - button to adjust volt-
age to be 3.2Vdc.
FOCUS ADJUSTMENT
By using FOCUS VR, adjust focus control for well
defined scanning lines.TRAPEZOID ADJUSTMENT
1. Receive cross hatch pattern and set screen mode to
OFULL�.
2. Enter to the service mode and select mode OWIDE�,
GREY SCALE ADJUSTMENT
and select item no. 8 OWIDE 8.P TRP�.
3. Press the LEVEL+ or LEVEL - button to correct the
SCREEN ADJUSTMENT
trapezum distortion of the vertical line.
1. Receive black & white pattern.
2. Enter to the service mode and select mode OREGU-
LAR�, and select item no. 2 OREGULAR 2, CUT�. The
horizontal line will appear on the screen.
3. Set the SCREEN VR for one colour to be just visible.
4. Using the numeric buttons shown set each colour to
minimum by decreasing to the point where any further
decrease resets the adjustment to maximum value.
BIAS ADJUSTMENT
5. By using the buttons 1, 2, 4, 5, 7, 8 on the remote
control, adjust the line to be white.
The key allocation is as follows;
Button No. Operation
1Increase Red
2Decrease Red
4Increase Green
5Decrease Green
7Increase Blue
8Decrease Blue
DRIVE ADJUSTMENT
-10-
C3HAL/C3YAV |
ACEC
SANYO
