Emerson SC319C Service Manual page 25

7. H. Shift Adjustment
Purpose: To obtain correct horizontal position and
size of screen image.
Symptom of Misadjustment: Horizontal position and
size of screen image may not be properly displayed.
Test point Adj. Point
CH o / p
---
buttons
Tape M. EQ.
--- Pattern Generator
1. Enter the Service mode. (See page 1-4-1.)
Press "8" button on the remote control unit and
select H-P Mode.
2. Input monoscope pattern.
3. Press CH o / p buttons on the remote control unit
so that the left and right side of the monoscope pat-
tern are equal to each other.
4. Turn the power off and on again.
8. Cut-off Adjustment
Purpose: To adjust the beam current of R, G, B, and
screen voltage.
Symptom of Misadjustment: White color may be
reddish, greenish or bluish.
Test point Adj. Point
--- Screen-Control
Tape M. EQ.
--- Pattern Generator
Figure
PATTERN GENERATOR
Mode Input
--- Monoscope
Spec.
90±5%
Mode Input
Black
Raster /
Ext.
White
Raster
Spec.
See Reference
Notes below
RF INPUT
Fig. 3
Notes: Screen Control FBT --- MAIN CBA
F.B.T= Fly Back Transformer
Use the Remote Control Unit
1. Degauss the CRT and allow CRT to operate for 20
minutes before starting the alignment.
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 p" button.
(Press "VOL p" then display will change CUT 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 o / p" button until the horizontal line
becomes white.
7. Choose CUT OFF/DRIVE mode then press "2" but-
ton. This adjustment mode is CUT OFF (G). Press
"CH o / p" 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 o / p" 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 o /
p buttons to get the following value, X= 286, Y=
294.
11.Choose CUT OFF/DRIVE mode then press "5."
Adjust the BLUE DRIVE as needed with the CH o /
p buttons to get the following value, X= 286.
12.Turn the power off and on again.
1-7-4 T7300EA