![background image](http://html2.mh-extra.com/html/magnavox/cmwc13d6/cmwc13d6_service-manual_3787996025.webp)
1-6-6
T8200EA
11. 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.
Note:
Screen Control FBT --- Main CBA
FBT= Fly Back Transformer
Use service remote control unit
1. Degauss the CRT and allow the unit 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 1-6-1.)
4. Press "VOL
p
" button on the service remote
control unit to enter "C/D" mode. Then press "1."
The display will momentarily show "CUT OFF R"
(R= Red.) Now there should be a horizontal line
across the center of the picture tube. If needed,
gradually turn the screen control on the flyback
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 adjustment again.
The following 2 adjustments normally are not
attempted in the field. They should be done
only when replacing the CRT then adjust as a
preparation.
12. Purity Adjustment
Purpose:
To obtain pure color.
Symptom of Misadjustment:
If Color Purity Adjust-
ment is incorrect, large areas of color may not be prop-
erly displayed.
* This becomes RED COLOR if the 7KEY is pressed
while in service mode.
1. Set the unit facing east.
2. Operate the unit for over 30 minutes before adjust-
ing.
3. Fully degauss the unit using an external degauss-
ing coil.
4. Set the unit to the AUX mode which is located
before CH2, then input a red raster from video in.
5. Loosen the screw on the Deflection Yoke Clamper
and pull the Deflection Yoke back away from the
screen. (See Fig. 7.)
6. Loosen the Ring Lock and adjust the Purity Mag-
nets so that a red field is obtained at the center of
the screen. Tighten Ring Lock. (See Fig. 6,7.)
7. Slowly push the Deflection Yoke toward the bell of
the CRT and set it where a uniform red field is
obtained.
8. Tighten the clamp screw on the Deflection Yoke.
Test Point
Adj. Point
Mode
Input
---
Screen-Control
CH.
o
/
p
buttons
RF
Black Ras-
ter
Tape
M. EQ.
Spec.
---
Pattern
Generator
See Reference
Notes below.
Figure
PATTERN GENERATOR
Fig. 5
RF INPUT
Test point
Adj. Point
Mode
Input
---
Deflection Yoke
Purity Magnet
---
*Red Color
Tape
M. EQ.
Spec.
---
Pattern Generator
See below.
Figure
BLUE
GREEN
RED
Fig. 6
Summary of Contents for CMWC13D6
Page 1: ...SERVICE MANUAL 13 COLOR TV DVD CMWC13D6...
Page 38: ...1 10 3 Main 1 4 Schematic Diagram TV Section T8203SCM1...
Page 39: ...1 10 4 T8203SCM2 Main 2 4 Junction Schematic Diagram TV Section...
Page 40: ...1 10 5 T8203SCM3 Main 3 4 CRT Schematic Diagram TV Section...
Page 42: ...1 10 7 Sub Schematic Diagram TV Section T8203SCSUB...
Page 43: ...1 10 8 T8203SCD1 DVD Main 1 3 Schematic Diagram DVD Section...
Page 44: ...1 10 9 T8203SCD2 DVD Main 2 3 Schematic Diagram DVD Section...
Page 45: ...1 10 10 T8203SCD3 DVD Main 3 3 Schematic Diagram DVD Section...
Page 57: ...1 16 2 T8203PEX Packing S1 FRONT X3 X2 TAPE X1 S4 Packing Tape Packing Tape S6 S3 S2 S5...
Page 64: ...CMWC13D6 T8203CD 2006 07 03...