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Correct Diode for Toshiba TV no power

Discussion in 'Troubleshooting and Repair' started by Tidgey, Dec 5, 2018.

  1. Tidgey

    Tidgey

    4
    0
    Dec 5, 2018
    Hi,

    Can anyone shed light on what rating of Schottky diode i require ? The Shottky diode in the power board has MUR4 written on the body. Other diodes from other TV power boards i have saw online provide the Amp rating and Voltage on the body of the diode however this one does not.

    Usual advice is appreciated.

    Kieran
     
  2. CircuitMaster

    CircuitMaster

    48
    1
    Dec 17, 2016
  3. Tidgey

    Tidgey

    4
    0
    Dec 5, 2018
  4. kellys_eye

    kellys_eye

    4,284
    1,145
    Jun 25, 2010
    Don't - yet.

    Those MUR4 diodes come in different voltage ratings and you must chose the correct one else risk damage elsewhere.

    Do you have the specification, make/model for the set? Or a schematic?
     
  5. Tidgey

    Tidgey

    4
    0
    Dec 5, 2018
    Tried finding technical information online with no luck, I can only find owner manuals which is useless.
     
  6. kellys_eye

    kellys_eye

    4,284
    1,145
    Jun 25, 2010
    Which model TV is it? Are there any identification codes on the power board?

    Many TV sets have power supply issues - so many in fact that there is a market in supplying kits of parts covering the major manufacturers and containing all the 'usual suspects' that go 'poof'.

    Google the set make/model and 'repair kit' and see if anything turns up.
     
  7. Notallbad

    Notallbad

    43
    0
    Oct 9, 2012
    Whats the power board model number (i.e NOT the brand and model of the TV).

    Though make and model may also help!

    Tosbiba so highly likely its a Vestel board.
     
  8. Tidgey

    Tidgey

    4
    0
    Dec 5, 2018
    Just got a second hand TV, wasn't getting anywhere trying to find the correct one , looked everywhere online including Toshiba with no luck, meanwhile im sitting with no TV for 4 days.
     
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