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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You will need to go back and forth between sizeand linearity as these adjustments are usually not independent. This creates an entire set of additional problems indesign. Assuming everything here checks out, clip a voltmeter set on its V 2sc33446 higher across the horizontal output transistor and turn the power on.
Drive IC 2SC datasheet & applicatoin notes – Datasheet Archive
Usually, this is a separate low voltage power supply using a small power transformer for line isolation. The HOT circuit may be line-connectedand it is possible to destroy the HOT and related components if this is notdone properly. However, in this case, there should be some indication that the deflection and HV is attempting to come up – momentary whine, static on the screen, etc.
There could still be a problem with the power circuits but it will probably not result in an immediate catastrophic failure. Position – a pair of rings with tabs on the neck of the CRT. In any case, you will have the satisfaction of knowing youdid as much as you could before taking it in for professional repair.
Yes, TVs and monitors boot just like computers. Input is baseband video. This will minimize the possibility of color purity or geometry problems.
There may be some subtle differences in load capacity. Symptoms of poor purity areblotches of discoloration on the screen. Increase the brightness until a raster is just visible in the darkest shadow areas of the picture. Then check with a voltmeter to be double sure.
Troubleshooting these sorts of problems is going to be tough. Convergence is set using a white crosshatch or dot test pattern. There is an internal tilt control that is misadjusted or not functioning.
Bad convergenceresults in color fringing at edges of characters or graphics.
There is noexplanation of how the original diagnosis was determined or what may havecaused the failure in the first place. Little parts may fit inmore than one place or orientation.
If the fuse does not blow, then with the good transistor assuming it is notfailing under loadit would mean datashet there is some problem with thedriving circuits possibly or with the feedback from the voltages derivedfrom the horizontal not regulating properly. Since the electron beams for the R, G, and B phosphors originate fromslightly different positions individual electron guns dztasheet each and thus arrive at slightly different angles, only the proper phosphorsare excited when the purity is properly adjusted and the necessarymagnetic field free region is maintained inside the CRT.
It could still be failing at full voltage, however. You just became aware of it but nothing has changed. If they are fuzzy, dqtasheet in bright areas, then focus ddatasheet needto be adjusted. These should be marked in the Sams’ Photofact or service manual.
The main filter capacitor or other filter capacitors in the low voltage power supply is dried up and this can cause all kinds of regulation problems. Some of the large filter capacitorscommonly found in line operated equipment store a potentially lethal charge.
Silicon NPN Power Transistors
Various additional deflection signals to correct for the imperfections in the geometry of large angle deflection CRTs. In other cases, alimited but still useful subset of the for-fee database is freely available. Bulk tape erasers, tape head degaussers, open frame transformers, and the”ass-end” of a weller soldering gun can be used as CRT demagnetizers butit just takes a little longer.
A couple of tests can be performed to confirm that it is dueto beam current: Having said that, a basic knowledge of how a TV set works and what cango wrong can be of great value even if you do not attempt the repair yourself. Test the transistors if it is that type with an ohmmeter. Geometry – some little magnets either on swivels around the yoke or glued to the CRT. There are also various and sometimes convoluted combinations of any or all of the above. These built-in coils with thermalcontrol are never as effective as external coils.
You cancompensate for that with the brightness control, which in effect willraise the VKs.
If there are any indications of humbars, first check the main filter capacitor s or substitute a knowngood one. Newer Sony monitors have this don’t know about TVs – a most wonderful addition. The outside “dag” is datashfet connected to the circuit chassis ground via aseries of springs, clips, and wires around the picture tube.