Sylvania Emerson 6727DE, Руководство по обслуживанию, Страница: 26 / 90

1-7-7 T6001EA
11. Focus Adjustment
Purpose: Set the optimum Focus.
Symptom of Misadjustment: If Focus Adjustment is
incorrect, blurred images are shown on the display.
Note: Focus VR --- FBT (Sub 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 a
clear picture.
12. H. Position 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.
1. Enter the Service mode. (See page 1-7-1.)
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
pattern are equal to each other.
4. Turn the power off and on again.
13. V. Shift Adjustment
Purpose: To obtain correct vertical position of screen
image.
Symptom of Misadjustment: If V. position is incor-
rect, vertical position of image on the screen may not
be properly displayed.
1. Enter the Service mode. (See page 1-7-1.)
Press "9" button on the remote control unit and
select V-P mode. (Press "9" button then display will
change to V-P and V-S).
2. Input monoscope pattern.
3. Press "CH
o
/
p
" buttons on the remote control
unit so that the top and bottom of the monoscope
pattern are equal to each other.
14. V. Size Adjustment
Purpose: To obtain correct vertical height of screen
image.
Symptom of Misadjustment: If V. Size is incorrect,
vertical height of image on the screen may not be
properly displayed.
1. Enter the Service mode. (See page 1-7-1.)
Press "9" button on the remote control unit and
select V-S mode. (Press "9" button then display will
change to V-P and V-S).
2. Input monoscope pattern.
3. Press "CH
o
/
p
" buttons on the remote control
unit so that the monoscope pattern is 90
±
5% of dis-
play size and the circle is round.
Test point Adj. Point Mode Input
--- Focus Control --- Monoscope
Tape M. EQ. Spec.
--- Pattern Generator See below.
Test point Adj. Point Mode Input
---
CH
o
/
p
buttons
--- Monoscope
Tape M. EQ. Spec.
--- Pattern Generator ---
Test point Adj. Point Mode Input
---
CH
o
/
p
buttons
--- Monoscope
Tape M. EQ. Spec.
--- Pattern Generator ---
Test point Adj. Point Mode Input
---
CH
o
/
p
buttons
--- Monoscope
Tape M. EQ. Spec.
--- Pattern Generator 90
±
5%