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1npdf 1nfiletype-pdf 1npdf 1ngp-fagor-pdf 1nws- pdf 1ndatasheet-pdf 1npdf 1ndiode-pdf. SONY BRAVIA LCD TV SERVICE MANUAL FILETYPE DOWNLOAD – Printed Wiring Boards and Schematic Related Posts IN EPUB DOWNLOAD. File Type: jpg, XR electrical I’m gonna try it with some 1N diodes, 1,uF/50V caps, and a LM regulator. I read something.

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Diode Test – Badcaps Forums

Not through strength, but filethpe persistence. Find More Posts by PlainBill. I have tried the following without any success: I did a quick test on a step down board in my lab: Ah, sorry, I mixed up the numbers I meant R66 but wrote R In addition, some files are archived, so you need WinZip or WinRar to open that files.

Diode Test I’m sorry it died.

From replacing a Power Supply circuit board, a T-Con riletype board, or simply securing a loose ribbon cable connection, these TV repair manuals will help you to filetyle your TV yourself. And the forward voltage does change based on how much current is flowing. So I lifted the small fet instead and then the ethernet chip became dead, led’s dead and I measured ca 0. So again if the only voltage flietype the board is generated by the step-down converter, removing the FET is like opening the input voltage so nothing should be powered up.

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Maybe there’s a short circuit after it and the current is so high to run it very hot. Last edited by Per Hansson; at Proceeding in this way you can understand if the problem is on the board or on the step-down converter. And the switching chip becomes very hot, so I think I cooked it.

Google for the 1N datasheet, on the second page, look at the “forward voltage characteristics”. Cancel reply Leave a Comment. Find More Posts by gg June 25, at 1: The time now is Find More Posts by Gianni.

Diode Test gg is right, look at the characteristics in the datasheet. The voltage measured into the switching chip that does the ethernet magic is ca 3. 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. Is the diode ok or not? Diode Test Google for the 1N datasheet, on the second page, look at the “forward voltage characteristics”.

SONY BRAVIA LCD TV SERVICE MANUAL FILETYPE DOWNLOAD

Sony service center of how the indicator flashes duration and interval. 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.

I read nothing in the direction you should not be able to read anything And in the “forward” direction I read 0. Diode Test I cracked open the AC adapter first thing I did, it’s very simple with only a transformer, a cap, one resistor and 4 diodes to form DC current I checked the capacitor and it was ok, both ESR and capacitance Fallowing your videos I have checked standby power 3.

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Ciao Gianni Last edited by Gianni; at Madison, IN My Country: 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.

Find More Posts by im5822. Diode Test I’ve got a Fluke here in front of me at work, and according to it, it’s measuring volts DC.

SONY BRAVIA LCD TV SERVICE MANUAL FILETYPE DOWNLOAD

This manual also for: Copy and paste this code: Hence, it gives a voltage when forward biased, and no volts, indicates “OL” fkletype reverse biased. Jamestown, IN My Country: I’ve got a Fluke here in front of me at work, and according to it, it’s measuring volts DC. For sure it is not recommended to remove the diode because the kn5822 stored in the inductor must find another path to discharge, so you don’t know what it causes in the circuit.