Durabrand T6605VF Service Manual page 27

5. 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.
Test point Adj. Point
PROG+/PROG-
Screen
buttons
Tape M. EQ.
--- Pattern Generator
1. Enter the Service mode. (See page 1-6-1.)
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 and leave it for at least 20
minutes.
3. Press [PROG+/PROG-] buttons on the remote con-
trol unit so that the monoscope pattern is 90±5% of
display size and the circle is round.
6. 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.
Test point Adj. Point
PROG+/PROG-
Screen
buttons
Tape M. EQ.
--- Pattern Generator
1. Enter the Service mode. (See page 1-6-1.)
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 and leave it for at least 20
minutes.
3. Press [PROG+/PROG-] buttons on the remote con-
trol unit so that the top and bottom of the mono-
scope pattern are equal to each other.
Mode Input
RF
Monoscope
(or Ext.)
Spec.
90±5%
Mode Input
RF
Monoscope
(or Ext.)
Spec.
90±5%
1-6-4
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
PROG+/PROG-
Screen
buttons
Tape M. EQ.
--- Pattern Generator
1. Enter the Service mode. (See page 1-6-1.)
Press [8] button on the remote control unit and
select H-P mode.
2. Input monoscope pattern and leave it for at least 20
minutes.
3. Press [PROG+/PROG-] buttons on the remote con-
trol unit so that the left and right side of the mono-
scope pattern 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,
Screen PROG+/PROG-
buttons
Tape M. EQ.
--- Pattern Generator
Notes:
Screen Control (FBT) --- H.V./Power Supply CBA
FBT= 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 (or Ext.) input.
3. Enter the service mode. (See page 1-6-1.)
Dimmed horizontal line appears on the CRT.
4. To enter the C/D/S mode, press the [VOL-] button
on the remote control unit.
5. To enter the CUT OFF (R) mode, press [1] button
on the remote control unit.
6. Turn the screen control up until dimmed horizontal
line appears.
Mode Input
RF
Monoscope
(or Ext.)
Spec.
90±5%
Mode Input
RF Black Ras-
(or Ext.) ter
Spec.
See Reference
Notes below
T6605EA