Focus Adjustment - Sylvania 6319CCB Service Manual

2. Set the screen control to minimum position. Input the
Black raster signal from RF input.
3. Enter the Service Mode. (See page 1-4-1)
Dimmed horizontal line appears on the CRT.
4. Press the "VOL
(Press "VOL /
OFF/DRIVE, VCO adjustment, Analog OSD adjust-
ment).
5. Choose CUT OFF/DRIVE Mode then press "1" but-
ton. This adjustment mode is CUT OFF (R).
6. Press the "CH /
becomes white.
7. Choose CUT OFF/DRIVE mode then press "2" but-
ton. This adjustment mode is CUT OFF (G). Press
"CH / " until the horizontal line becomes white.
8. Choose CUT OFF/DRIVE Mode then press "3" but-
ton. This adjustment mode is CUT OFF (B). Press
"CH / " until the horizontal line becomes white.
9. Input the White Raster Signal from Video In.
10. Choose CUT OFF/DRIVE mode then press "4."
Adjust the RED DRIVE as needed with the CH
buttons.
11. Choose CUT OFF/DRIVE mode then press "5."
Adjust the BLUE DRIVE as needed with the CH
/ buttons.
12. Turn the power off and on again.
/ " button.
" then display will change CUT
" button until the horizontal line
9. Sub-Brightness Adjustment
Purpose: To get proper brightness.
Symptom of Misadjustment: If Sub-Brightness is in-
correct, proper brightness cannot be obtained by adjust-
ing the Brightness Control.
Test Point Adjustment Point
--- CH
Tape
--- Pattern Generator
White
/
Note: SYMPTE Setup level --- 7 IRE
1. Enter the Service Mode. (See page 1-4-1)
Then input SYMPTE signal from RF input.
2. Press MENU button. (Press MENU button then dis-
play will change B R T, C N T, T N T, V-T and SHP).
Select BRT and press CH
bar is just visible (See above figure).
3. Turn the power off and on again.

10. Focus Adjustment

Purpose: Set the optimum Focus.
Symptom of Misadjustment: If Focus Adjustment is
incorrect, blurred images are shown on the display.
Test Point Adjustment Point
--- Focus Control
Tape
--- Pattern Generator
Note: Focus VR (FBT) --- H/V CBA
FBT= Fly Back Transformer
1. Operate the unit more than 30 minutes
2. Face the unit to the East and degauss the CRT using
a Degaussing Coil.
3. Input the monoscope pattern.
4. Adjust the Focus Control on the FBT to obtain clear
picture.
1-7-4
Mode
/ buttons ---
M. EQ. Spec.
See below
Figure
/ buttons so that the
Mode
---
M. EQ. Spec.
See below.
Input
SYMPTE
7.5 IRE
Black
This bar
just
visible
Fig. 4
Input
Monoscope
T7200EA