2SC3346 DATASHEET PDF

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2SC Transistor Datasheet pdf, 2SC Equivalent. Parameters and Characteristics. isc Website: isc Silicon NPN Power Transistors. 2SC DESCRIPTION. ·Low Collector Saturation Voltage.: VCE(sat)= V(Max)@ IC= 6A. 2SC Datasheet PDF Download – Silicon NPN Epitaxial Type / High Current Switching Applications, 2SC data sheet.

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2SC3346 Datasheet PDF

Some of the extra parts are 2sc3364 for projection because CRTprojection tubes require dynamic convergence. Apparently identical screws may be of differinglengths or have slightly different thread types.

RF sources include a pair of rabbit ears or an outdoor antenna, a cable connection, or a VCR with a working RF modulator. In a nutshell the regulator is a switched mode circuit that uses a winding from the high voltage transformer to turn off the SCR.

Various additional deflection signals to correct for the imperfections in the geometry of large angle deflection CRTs. Did an MRI scanner move in next door? If you find one bad part, still check everything else as more than one partmay fail and just replacing one may 2sd3346 it to fail again. Then it comeson and operates normally until it is turned off.

Sometimes it is on the main circuit board. A service manual isessential! Note that some TVs and monitors simply will not power up at all with any kindof series load – at least not with one small enough in terms of wattage toprovide any real protection.

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These are activated each time the CRT is powered up cold by a 3 terminal thermister device or other controlcircuitry. If the HOT tests bad, try powering the set first with your light bulb and ifit just flashes once when the capacitor is charging, then put a fuse inand try it. I do not know whether there are cases where damage to flyback could result from running in thie manner, however.

2SC 데이터시트(PDF) – Savantic, Inc.

This is not in itself dangerous but a reflex reaction can send your flesh into it with nasty consequences. In this case, only the primary side of the power supply is line connected.

The PTC thermister heats up, increases in resistance, and datashest decreases the current to nearly zero over a couple of seconds. Try a larger one first. Most of the time you will get away withputting it in series with the AC line.

Silicon NPN Power Transistors

Even so, it may not blow as a result of faults down the line – the fusable resistor or regulator may fail first. It is imperative to have the CRT running whenusing datasheer whimpier approaches, so that you can see where there are still impurities. The horizontal sync pulse from the sync separator locks the horizontal deflection to the video signal.

In effect, dataseet have just shorted across the bottom diode of the bridge. It could still be failing at full voltage, however. Vertical and any convergence coils may or may not be problems as well. Fuse replaced but TV clicks with power-on but no other action: Next datasjeet across the SCR anode to cathode.

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Leave at least 3 inches on top and sides for air circulation if the entertainment center does not have a wide open back panel. If you do go inside, beware: If best focus is at oneend of the focus pot’s range and still not good enough, there may be aproblem in the focus divider, focus pot, or some related component. Discrete multivibrator or other simple transistor circuit to provide base drive to the HOT. Most TVs can still be positioned stably on any of three sides left, right,bottom even without the rear cover.

Assuming everything here checks out, clip a voltmeter set on its V scaleor higher across the horizontal output transistor and turn the power on. The microcontroller apparently senses the dropin voltage and shuts the unit down or continuously cycles power. Was the TV operating or on standby at the time? Repeatedly shoving a screwdriver under the anode cap risks scratching the CRT envelope which is something you really do not want to do.