Some of them have three ICs on board as Red,Green and blue output stages. If ICs are used, some sets uses a single IC for Red, Green and Blue output stages. If transistors are used, check the collector voltage at red video output transistor. Whatever the ciruit type may be, the fault and its remedy is same.Ĭheck whether your set has transistors or ICs used. We here in India, have transistorised video output stages in Philips Magnavox sets. Some philips circuts uses transistors while others uses ICs in that section. Hello If your TV screen looks more red its red video output section is in trouble. NOTE: Never switch on the set while unpluging the deflection yoke connection plug from the circuit board, without dismandling the CRT base board.ĬRT may get damaged, with a black burned spot inside the center of the screen. Till the transistor overheats, suspect the LOT. If it doesn't overheat, suspect the deflection yoke for shorted turns of winding inside it. See whether the transistor overheats now. Pull out the CRT base board out of the neck of the picture tube, place it where it doesn't get short circuited, and unplug the deflection yoke connection from the main board, and switch on the set. You can suspect the deflection yoke also for shorted winding. If it doesn't overheat, you can remove it later. You just put a small heatsink to it and check. Usually samsung sets use no heatsink for the horizontal output transistor. Replace the yoke return capacitor, 0.33uf or so also. Hello You just replace the freewheeling capacitor, normally come up to a value of 5600pf 2000V or so, connected to the collector of the horizontal output transistor, fitted very close to the collector lead. Do a search by type in the brand name of your device at its search box. Viewing it in ' Mosaic' or ' Magazine' will make surf easy. If you wish to get some details check the site linked here. You have to find out the exact reason for this. If the base pulse width is abnormal, this might happen. TRANSISTOR DARLING TT2222 HORIZONTAL Datasheet(PDF) - KEC(Korea Electronics) - MMBTA63 Datasheet, EPITAXIAL PLANAR PNP TRANSISTOR. TRANSISTOR HORIZONTAL TT2222 Datasheets, Datasheet(PDF) - Mospec Semiconductor - 2SD1427 Datasheet, HORIZONTAL DEFLECTION POWER. TRANSISTOR TT2222 MOUNT Datasheet, PDF, SURFACE MOUNT NPN SILICON TRANSISTOR, PNP SMALL SIGNAL SURFACE MOUNT TRANSISTOR, High Current Surface Mount PNP Silicon Low.

If the winding have a short, the transistor will overheat.ĭatasheet, PDF - Alldatasheet. If the transistor is leaky, it will overheat.

Transistor tt 2222 pdf