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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The line level audio is amplified to drive a set of speakers. The IF section may be in either place.
It will be a DC coil. With minor exceptions, specific manufacturers and modelswill not be covered as there are so many variations that such a treatment wouldrequire a huge and very detailed text. Some TVs do not have anyisolation barrier whatsoever – the entire chassis is live. Check for bad fuses.
If the fuse does not blow, then with the good transistor assuming it is notfailing under loadit would mean that there is some problem with thedriving circuits possibly or with the feedback from the voltages derivedfrom the horizontal not regulating properly.
With TVs, the main filter capacitor is nearly always on the mainboard. There is datasehet isolation.
This could be anything from it appearing totally dead to an overheating or blown horizontal output transistor. Additional information on discharging CRTs: In the best case, this is restricted to the area around the power cord connections and well marked on both top and bottom but don’t count on it. This is what is expected when the equipment is operating normally. One or more large filter capacitors to smooth the unregulated DC.
Your powers of observation and a little experience will makea good start. If they are fuzzy, especially in bright areas, then focus may needto be adjusted.
2SC Datasheet PDF –
It is a good idea to mark their position in any case withsome white paint, ‘white out’, or a Magic Marker so that if they do getmoved – or you move them deliberately, you will know where you started. This is a useful piece of equipment if you are doing a lot of TV or monitor repair and need to perform CRT convergence and chroma adjustments. Almost certainly, the relay will have 4 connections – 2 for power and 2for the coil.
Unplug the degauss coil as this will show up as a low resistance. For a TV, it may just be a bad connection or blown fuse. Objects will change shades of colorwhen the move from one part of the screen to another.
Color CRTs – shadow masks and aperture grills: When the set is unplugged, the tuner shieldor other signal ground points should be safe and effective. You are going to need datasheeet figure part of this out as I no longer have theschematics available. There will always be: A bad fatasheet capacitor on the output of a series regulator may result in excessive voltage and subsequent shutdown. Pincushionphase affects where on the sides it is applied. It is imperative to have the CRT running whenusing these whimpier approaches, so that you can see where there are still impurities.
A capacitor meter can alsobe used but the capacitor may need to be removed from the circuit. Once theeffective capacitance drops low enough, Hz or Hz in countries with50 Hz power ripple will make its way into the regulated DC supply assuming full wave rectification. All this will do is allow you to rule out either theregulator or the horizontal section. The Video Handbook also includes descriptions of video signals and common video connectors. Now do the same with the green and blue screen controls.
Now turn up red screen until the screen just shows a red hue.
2SC3346 Datasheet, Equivalent, Cross Reference Search
dwtasheet If the lamp works, then the problem is the TV. Sometimes feedback datasheet a secondary output of the flyback or even the high voltage is used. You will learn a lot in the process. While on and not working either VACif the relay is not pulling in or 0 if it is and the problem is elsewhere. If scan timeis too long, current continues to increase. The procedures for dot-maskand Trinitron aperture grille CRTs will vary slightly.
The following is just a briefintroduction with instructions on degaussing. Sometimes, there is a separate switching power supply but this would be the exception. The multitester will also be used to check components like transistors, resistors, and capacitors for correct value and for shorts or opens.
Silicon NPN Power Transistors
Use a Variac, if possible, to bring up the input voltage slowly and see ifthe TV works at any point without shutting down. Since the fuse doesn’t blow now you did replace it with one of the sameratings, right? Therefore, we have the following functions: Others power the horizontal osc. Vertical size should be set so that there is about percentoverscan top and bottom. A lower wattage resistor can be used since the total energy in not that great.
With a near-miss, the only thing that mayhappen 2sc3346 for the internal fuse ratasheet blow or for the microcontroller to gobonkers and just require power cycling. Various additional deflection signals to correct for the imperfections in the geometry of large angle deflection CRTs. If it is bad, look for open fusable resistors or other fuses you did not catch. This notice is included in its entirety at the beginning. Intermittently dead set – bad cordset: Most connectors are keyed against incorrect insertion or interchangeof cables, but not always.