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Tda9380 ps/n3/3/1664 only horizondal line

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Denotes the absence of vertical sweep. Check all the solder terminals at the vertical output IC for any loose soldering. If this IC do not get its supply voltage, or, if it is faulty, or, any connection tracks to vertical deflection yoke is open, this kind of fault can occur. In this case, as there is horizontal line on the screen, TDA1930 is working. So, troubleshooting should be concentrated to its vertical scan output stage circuits. Check for any bad capacitors too. There will be 5 to 9 electrolytic capacitors will be there, related to vertical scan circuit. Replace all of them once, not by individual. If you wish to get more details, check the site linked here. Pull up older posts.

Posted on Nov 25, 2013


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My TV sharp 21rh21 please tell me display settings which IC no pin working and IC no tda9380 ops/n3/3/1664

If you wish to get some details; check the site linked here. Pull up older posts.
Search the site by type in the "brand name" or " the IC number" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

May 12, 2016 | Sharp Televison & Video

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If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.
Search the site by type in the IC number to your device, in the "Search box at the top right of the display window" to get gathered related posts.

Aug 25, 2015 | Televison & Video

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No power suppely out to horizondal section ,but 330v store n capacitor{using STR F664 IN SMPS how to drive supply to h out

supply through sm transformer to diode, 100/160 v capacitor ,,,then fusible resistance to EHT pin of primer winding to bu transistor

May 01, 2015 | Televison & Video

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I have a lg crt tv set is normally start but no display no sound increase screen lot came retrace line with gray screen I change tda9381... and base no change please help me. .

The IC TDA9380 & 9381; that we get today's' are not working types. I too did felt this, and I've started rejecting sets using this IC; out my service room. I'm doing this work since 43 years. and have no intend to lose my money for buying this IC; or work with such type sets.
Wish you Good Luck; if you get a working IC any more.

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Screen horizondally pulled right side and screen rolled to left side

your monitors horizontal deflection side have some problem. you have to check the horizontal width cotrolling transistor mounded on the aluminum heatsik near the lot( line output transistor). also check the three mosfets which adjust the width for different resolutions. there are three such mosfets in the horizontal section.

fist of all replace the width controlling transistor in the heat sink. photo of mosfet and transistor is added for reference. not the exact number.

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No horizondal oscilation.

no line flyback transformer
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horizontal line vertical output circuit
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Sep 14, 2009 | Televison & Video

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Photos are monochromatic with a puple color and horizondal lines in it.

Contact Canon - this is a CCD problem that they know about - possibly a replacement will come your way

Sep 16, 2006 | Canon PowerShot A95 Digital Camera

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