TIPS REPAIR BLOCK VERTICAL OUTPUT

                                                    DAMAGE BLOCK VERTICAL OUTPUT   

1. Horizontal line (horizontal)
Damage is caused due to the vertical signal does not enter into the yoke, probably due to the failure of the vertical output. check the vertical amplifier supply voltage, check the components along the lines of the vertical output IC jungle / oscillator. When the vertical output of the oscillator amplifier supply voltage is present and there is vertical, check whether there is voltage on the vertical output with AC voltmeter. In normal, the voltage at the amplifier output will be read vertically non-symmetric half of the DC VCC. And legible 0VDC when the amplifier is symmetrical. If the damage is not on the block but on the vertical amplifier block his jungle, check v-v-ramp anD iref (see datasheet IC is used).
2. Less full or too fullCheck the settings v-size, check whether the yoke that is attached or has changed its impedance matching impedance, check the voltage supply (if too high then the image will be shortened, and vice versa when the supply voltage drop). Check-Elco around each vertical reinforcing, if necessary, re reforested looks good though, especially in Elco and vertical feedback resistors (feedback, the amplifier system which feed back signal from the output to the input, generally consisting of a network of resistors and capacitors, RC ). When accompanied by pictures that are not linear, V-LINE check suit.

3. Scrolling images / roll up / downCheck the color system format is PAL / NTSC. Check the vertical oscillator block. when it can sometimes be 'stopped' own, check the components along the vertical feedback and vertical synchronization. In some types of vertical amplifier IC is equipped with a vertical frequency of mode switches (eg TA8445, LA7838) generally damage to the IC itself.

4. High / image is not linear,  

or is accompanied by folding the picture on the top / bottom.Which is not linear is the displayed image is not uniform height from top to bottom. For example, is displaying the image boxes (grid), then the height of the box shown is not uniform / same (say, a disproportionate length of the head). Check the settings and the V-LINE V-SIZE, check the vertical amplifier supply voltage, check the diode pump-out, check also the vertical especially Elco around each IC pump-out and vertical output Elco. 

 

5. The image is reversed
When the image is displayed upside down, reverse the polarity of the wires are vertical yoke.

 

 
6. Lines arise in the position of fixed or random
In addition to random lines arise, generally not accompanied by the linear image, caused by changing the balance yoke or yoke is damaged (coil short-circuit part).

7. Images such as waves, only the center of the screen
Check whether the vertical yoke broken / burnt. Vertical yoke consists of two parts, when a part broke / damaged, can cause such damage.


ADDITIONAL
Sawtooth signal is amplified olek block vertical amplifier frequency between 40 s / d 400Hz, audible, just select 50Hz, so if the output is given vertical load speakers, sound will be druut. So naturally when a voice from the yoke. If the grounding system of the TV is not good, this sound can sometimes interfere with the audio system amplifier (sound on the TV speakers are fine).