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Beko DRCS76W Tumble Dyer [No power]
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<blockquote data-quote="Geoff1946" data-source="post: 518988" data-attributes="member: 28452"><p>I'm looking at the square black device with three connections, labelled U4. It looks to me to have a hole in it which suggests it is , lets say, goosed. The hole suggests that its works have exploded.</p><p></p><p>I can't fully make out the number on it, but it looks like 78**** and MAY be a voltage regulator.</p><p></p><p>IF it is, it was responsible for supplying a regulated voltage to the electronics. Does the burned resistor connect to this device? If so which terminal, and where does the other end of the resistor connect to?</p><p></p><p>The black unit on the corner of the board is a transformer, apparently providing a 12 volt supply to the nearby diodes and capacitors, so there should be around 15volts DC there.</p><p></p><p>NB&gt; The blue part is a capacitor and should NOT have continuity, but you can't test it in circuit as you don't know what's wired across it.</p><p></p><p>Please realise that we are clutching at straws trying to fix a board like this but I do admire your tenacity. How much is a replacement board?</p></blockquote><p></p>
[QUOTE="Geoff1946, post: 518988, member: 28452"] I'm looking at the square black device with three connections, labelled U4. It looks to me to have a hole in it which suggests it is , lets say, goosed. The hole suggests that its works have exploded. I can't fully make out the number on it, but it looks like 78**** and MAY be a voltage regulator. IF it is, it was responsible for supplying a regulated voltage to the electronics. Does the burned resistor connect to this device? If so which terminal, and where does the other end of the resistor connect to? The black unit on the corner of the board is a transformer, apparently providing a 12 volt supply to the nearby diodes and capacitors, so there should be around 15volts DC there. NB> The blue part is a capacitor and should NOT have continuity, but you can't test it in circuit as you don't know what's wired across it. Please realise that we are clutching at straws trying to fix a board like this but I do admire your tenacity. How much is a replacement board? [/QUOTE]
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