Another thing I would do is to feed the board with an external PS, if you have calculated the voltage you can feed the circuit and check if it works. The time now is Diode Test Plainbill I think the diode is the freewheeling diode used to discharge the energy in the smoothing toroidal inductor, if this is a step down converter. Per Hansson you can calculate the output voltage if you can identify the resistors connected between output-PIN5-ground. Page of 88 Go. Como, Italy My Country: Got it, continue to print. Can you post pics from top and bottom side possibly with tracks and components marking in focus?
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Akinogul Can you post pics from top and bottom side possibly with tracks and components marking in focus? I have Vizio soundbar bfavia. Is the diode ok or not? Find More Posts by PlainBill. Please leave a comment below and we will be happy to assist. Plainbill I think the diode is the freewheeling diode used to discharge the energy in the smoothing toroidal inductor, if this is a step down converter. Not through strength, but through persistence.
Find More Posts by Gianni. Information contained within RemoveandReplace. Proceeding in this way you can understand if the problem is on the board or on the step-down converter. So again if the only voltage feeding the board is generated by the step-down converter, removing the FET is like opening the input voltage so nothing should be powered up. Warnings And Mabual Ne les remplacer que par des composants Sony dont le numero de piece est indique dans le present sony bravia lcd tv service manual filetype ou dans des supplements publies par Sony.
In addition, some filetyps are archived, so you need WinZip or WinRar to open that files. Another reason why the FET becomes hot could be a problem in the driving signal on GATE pin, but in this case you should use an oscilloscope to check voltages. I also seem to have forgot to add the pic, so here it is, 2: This manual also for: June 25, at 1: Be safe and use caution when servicing, troubleshooting, or repairing a TV.
Professionals built the Titanic. And the switching chip becomes very hot, so Kn think I cooked it. Find More Posts by starfury1.
Ne les fi,etype bravia lcd tv service manual filetype que par des composants Sony dont le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony. Related Posts
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Find More Posts by PlainBill. Cancel reply Leave a Comment. Remember, amateurs built the ark. Find More Posts by Per Hansson.
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