Pin Cushion Adjustment - Durabrand DCF2003 Service Manual

13. H. Size Adjustment
Purpose: To obtain correct horizontal size of screen
image.
Symptom of Misadjustment: If H. Size is incorrect,
horizontal size of image on the screen may not be
properly displayed.
Test Point Adj. Point
--- VR562
Tape M. EQ.
--- Monoscope
Note: Use service remote control unit
1. Operate the unit for at least 20 minutes.
2. Receive the Monoscope Pattern.
3. Adjust VR562 so that the monoscope pattern will
be 90±5% of display size and circle is round.
4. Turn the Power off and on again. (Main power but-
ton on the TV unit.)

14. PIN Cushion Adjustment

Purpose: To obtain correct straight vertical line of
screen image.
Symptom of Misadjustment: If H.Pin cushion is incor-
rect, vertical line of image on the screen may not be
properly displayed.
Test Point Adj. Point
--- VR561
Tape M. EQ.
--- Cross hatch
Note: Use service remote control unit
1. Operate the unit for at least 20 minutes.
2. Receive the Cross hatch Pattern.
3. Adjust VR561 so that the cross hatch pattern will
be straight line of display.
4. Turn the Power off and on again. (Main power but-
ton on the TV unit.)
Mode Input
Mono-
RF
scope
Spec.
90±5%
Mode Input
Cross
RF
hatch
Spec.
5-13
15. 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
--- CH o / p
buttons
Tape M. EQ.
Pattern
---
Generator
Figure
PATTERN GENERATOR
EXT. INPUT
Note: Screen Control FBT --- Main CBA
F.B.T= Fly Back Transformer
Use service remote control unit
1. Degauss the CRT and allow CRT to operate for 20
minutes before starting the alignment.
2. Input the Black Raster Signal from RF Input.
3. Enter the Service mode. (See page 5-8)
4. Press "VOL p" button on the service remote con-
trol unit and select "C/D" mode. (Display changes
"C/D," "7F," "LANGUAGE," "ACCESS CODE,"
"SOUND TYPE," "VIDEO TONE," "FM MODE,"
"V-OUT," "VIDEO,"
SOUND," "FILTER," "500," and "YUV MEMORY"
cyclically when "VOL p button is pressed.) then
press "1." The display will momentarily show "CUT
OFF R" (R= Red). Now there should be a horizon-
tal line across the center of the picture tube. If
needed gradually turn the screen control on the fly-
back, clockwise until the horizontal line appears.
Adjust the Red Cut off by pressing the "CH o/p"
buttons. Proceed to Step 5 when the Red Cut off
adjustment is done.
5. Press the "2" button. The display will momentarily
show "CUT OFF G" (G=Green). Adjust the Green
Cut off by pressing the "CH o/p" buttons. Proceed
to step 6 when the Green Cut off adjustment is done.
6. Press the "3" button. The display will momentarily
show "CUT OFF B" (B=Blue). Adjust the Blue cut
off by pressing the "CH o/p" buttons. When done
with steps 4, 5 and 6 the horizontal line should be
pure white if not, then attempt the Cut off adjust-
ment again.
Mode Input
Black
RF
Raster
Spec.
See Reference
Notes below.
Fig. 2
"AV MEMO," "STABLE
L6625EA