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Home >> DAEWOO >> DTQ20N3FC Service Manual
 
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DAEWOO DTQ20N3FC
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of DAEWOO DTQ20N3FC Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

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Text excerpt from page 12 (click to view)
10-2. CONVERGENCE ADJUSTMENTS

B. CIRCUMFERENCE CONVERGENCE ADJUSTMENT

NOTE : Before attempting any purity adjustments, the
receiver should be operated for at least 15 minutes. A. CENTER CONVERGENCE ADJUSTMENT 1) Receive crosshatch pattern with a crosshatch signal generator. 2) Adjust the BRIGHTNESS and CONTRAST Controls for a good picture. 3) Adjust two tabs of the 4-Pole Magnets to change the angle between them (See Fig. 3) and superimpose red and blue vertical lines in the center area of the picture screen. (See Fig. 4) 4) Turn both tabs at the same time keeping their angles constant to superimpose red and blue horizontal lines at the center of the screen. (See Fig. 4) 5) Adjust two tabs of 6-Pole Magnets to superimpose red/blue line with green on top of each other. Adjusting the angle affects the vertical lines and rotating both magnets affects the horizontal lines. 6) Repeat adjustments 3), 4), 5) keeping in mind red, green and blue movement, because 4-Pole Magnets and 6-Pole Magnets interact and make dot movement complex.

NOTE : This adjustment requires Rubber Wedge Kit.
1) Loosen the clamping screw on deflection yoke to allow the yoke to tilt. 2) Place a wedge as shown in figure 2 temporarily. (Do not remove cover paper on adhesive part of the wedge.) 3) Tilt front of the deflection yoke up or down to obtain better convergence in circumference. (See Fig. 4) Push the mounting wedge into the space between picture and the yoke to hold the yoke temporarily. 4) Place other wedge into bottom space and remove the cover paper to stick. 5) Tilt front of the yoke right or left to obtain better convergence in cicumference. (See Fig. 4) 6) Hold the yoke position and put another wedge in either upper space. Remove cover paper and stick the wedge on picture tube to hold the yoke. 7) Detach the temporarily mounted wedge and put it in another upper space. Stick it on picture tube to fix the yoke. 8) After placing three wedges, re-check overall convergence. Tighten the screw firmly to hold the yoke tightly in place. 9) Stick 3 adhesive tapes on wedges as shown in figur32.

4-POLE MAGNETS PURITY MAGNETS 4DJUST THE ANGLE (VERTICAL LINES)

CONSTANT

CONVERGENCE MAGNET ASSEMBLY
Fig. 3

ROTATE TWO TABS AT THE SAME TIME (HORIZONTAL LINES)

ADJUSTMENT OF MAGNET

BLUE RED

RED/BLUE GRN
BGR B G R B G R BGR RGB R G B BGR

BLUE RED

RED/BLUE GRN

R G B

4-Pole Magnets Movement

6-Pole Magnets Movement Incline the Yoke up(or down) Incline the Yoke right(or left)

Center Convergence by Convergence Magnets

Circumference Convergence by DEF. Yoke

Fig. 4 Dot Movement Pattern

12

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