Understanding part-2 Horizontal-out circuit

Understanding part-2 Horizontal-out circuitThe main line is the horizontal pulse of the transistor collector def yoke HOT >> >> >> linearity coil capacitor "S" >> ground.Know the names of parts on the horizontal-out (see picture below)• resonant capacitor (another name is a safety capacitor, damper) which mylar capacitors generally have a working voltage 1600v (not shown in the figure)• Capacitors "S" (S curve correction) is a mylar capacitors which generally has a value of about 304 with a working voltage of about 200 to 400v. Installed in series with def yoke and coil linearity (example image CR406S)• Linearity horizontal coil, the coil that is placed in series with the capacitor def yoke and S (example image LR402S)• Circuit "Kink" correction (cross-hatch defect correction) consists of a voltage 160v ~ 250V, a diode and a resistor. The circuit in parallel with the capacitor S (example image C407, R407, D401)• Circuit 'M' correction consisting of a coil and capacitor in parallel to the capacitor circuit S as well as a "kink" correction (example image L408 and C823)
 Figure is an example of part of the scheme Samsung





Resonant I.KapasitorFunctions • Reduce the induced voltage is extremely high self that occurs in flybackIf damaged so that the value of the solder shrink or loose • Will lead to induction of self on the flyback voltage is very high and causes transistor collector-emitter short HOT• HV output voltage of the flyback will naiksangat high (up to 50 Kv or more). In certain cases it can cause broken CRTIf the value of the enlarged • Raster will widen the left-right direction• The output voltage of the flyback such as heater voltage, high voltage HV, will dropsIf the value is slightly decreased or reduced • Raster will be narrowed in the left-right bgaian.• The output voltage of the flyback will ride all, such as the heater voltage.• The high voltage HV which rose thus exceeding the specifications. and in a certain period of time can cause broken CRT• Can be triggered X-ray protector active work.II.Kapasitor "S"• Repairing defective function "S". That defect in which the image on the left side of the screen becomes more tenuous than the picture on the center screen.• If damaged - must be replaced with the same value.• Disability "S" can only be observed if the image displays patern cross-hatch (boxes)If damaged so that smaller, or a value of zero or solder loose • Causing horizontal pulse lines clogged, so it will move through the circuit "kink correction". Elko causing the circuit "kink" correction erupted and burned resistors• Raster will light a plumb line in the middle of the screen• In certain models such as SONY TV - causing all of the output voltage of the flyback drops into very small - raster dark - so that sometimes the unexpected problem technicians stuck on the horizontal flyback out or damaged.If replaced with a value that is not the same (more or less) • A cursory look at the images appear like normal. If checked with patern will appear flawed "S". Any defects can also be seen when there is an image of text run.III.Coil linearityFunctions • Improve horizontal linearity defect. That defect in which the image on the right side of the screen as compressed.• If damaged (burnt) should be replaced with a value (mH) the same.• having polarity such as Elko - installation should not be reversed. On the part and board are usually already marked. If the reverse defects will appear worse.If burning or direct dishort • At first glance the picture normal. But if being checked for wear patern will look to such defects. Any defects can also be seen when there is an image of text run. Left and right shoulder announcer appears to be symmetricIV. Circuit "kink" correctionFunctions • Improving cross-hatch defect, wherein if an image featuring straight vertical lines cross the horizontal line, then there will be deformed like a worm on a straight vertical line portionIf one part is broken or not installed • On the face image as normal. Defects would arise if the screen displays a line-sectional images.V.Sirkit "M" correctionFunctions • Functions almost miirip with capacitor function "S"If parts are damaged or not installed • At first glance does not appear in the image problem.VI. Def yoke (horizontal)Functions • Controlling the electron beam to scan from left to right of the screenIf the short is damaged • If the damage is still light - raster will appear shaped like a trapezoid (the edge of the left-right oblique)• Causing coil to burn / smoke• Causing the voltage B + drops, the output voltage flyback drops.• The damage is severe enough can cause faulty transistor HOTOne coil breaking • Def horizontal Yoke generally consists of two pieces of coils mounted in parallel. If one breaks it will be narrowed horizontal raster and formed like a trapezoid.If it is replaced with a different type of convergent dynamic • Can cause problems. Namely the white lines on the edges of the screen broke into three RGB linesIf replaced with an impedance (ohm) lower • Raster tend to widen the left-right• The output voltage of the flyback will rise.• Because it is necessary heater resistor value adjustments (enlarged) so that the voltage heatar not jumped. Rising heater voltage can cause a shorter lifespan CRT• If the impedance is too low can lead to a replacement for the transistor HOT hot or broken, due to the flyback voltage to rise very high.• In certain cases, can cause broken CRT, because the high voltage HV rises very high (this often happens on the SAMSUNG)If replaced with an impedance (ohm) greater • Raster tend to narrow left-right - can be corrected by increasing the resonance capacitor value or use tranfo-yoke (step-up)• The output voltage of the flyback will likely decrease.• heater voltage drops so that the picture becomes dim.
 
 Defects kink or flaw cross hatch, it displays lines cross (cross) then a vertical line will be bent as in the example image (an image of Toshiba training manual)