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3D TV, High Definition Television, HDTV 4K and AV
HD, 4K TV and Receivers
Skybox / Openbox / Libertview HD Receivers
Openbox s10 power supply failure
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<blockquote data-quote="istvan" data-source="post: 1090866" data-attributes="member: 415398"><p>Greetings! </p><p></p><p>A few months ago I bought a used openbox S10 receiver on a local auction site for next to nothing + shipping. It worked fine for a while, with a few problems here and there (namely random reboots and the HDMI sometimes not outputting anything). Today I turned it on and - nothing. check the fuse and sure enough, it's blown. I removed the cable going to the main circuit (just to be safe) and replace the fuse, switch it back on, fuse blows again. </p><p></p><p>On closer inspection, the big capacitor on the HV side had some gunk under it so I decided to try my luck and replace it. I'm adequate enough with a soldering iron and I have enough replacement parts so it only took me 15 minutes (I also replaced the fuse holder with a standard one for easier testing). Plug it back in, fuse blows again. </p><p></p><p>Any advice on how to proceed? I'm running out of 1 amp fuses and parts I could replace. visually there is nothing else wrong with it. I measured a few parts with my multimeter but they seemed ok. if it's the actual coil/inductor I'm out of luck because I don't have anything similar to the one in the circuit. </p><p></p><p>circuit SN is KB3151 (A) and the regulator chips is the 10 watt SD4841 (and not the 15 watt SD4844 what comes with some models ). attached an image of the circuit.</p><p></p><p><a href="https://www.satellites.co.uk/forums/threads/openbox-s10-resurrection.162759/" target="_blank">saw someone on here fix theirs with a simple recap but seems like I wasn't as lucky</a></p></blockquote><p></p>
[QUOTE="istvan, post: 1090866, member: 415398"] Greetings! A few months ago I bought a used openbox S10 receiver on a local auction site for next to nothing + shipping. It worked fine for a while, with a few problems here and there (namely random reboots and the HDMI sometimes not outputting anything). Today I turned it on and - nothing. check the fuse and sure enough, it's blown. I removed the cable going to the main circuit (just to be safe) and replace the fuse, switch it back on, fuse blows again. On closer inspection, the big capacitor on the HV side had some gunk under it so I decided to try my luck and replace it. I'm adequate enough with a soldering iron and I have enough replacement parts so it only took me 15 minutes (I also replaced the fuse holder with a standard one for easier testing). Plug it back in, fuse blows again. Any advice on how to proceed? I'm running out of 1 amp fuses and parts I could replace. visually there is nothing else wrong with it. I measured a few parts with my multimeter but they seemed ok. if it's the actual coil/inductor I'm out of luck because I don't have anything similar to the one in the circuit. circuit SN is KB3151 (A) and the regulator chips is the 10 watt SD4841 (and not the 15 watt SD4844 what comes with some models ). attached an image of the circuit. [URL='https://www.satellites.co.uk/forums/threads/openbox-s10-resurrection.162759/']saw someone on here fix theirs with a simple recap but seems like I wasn't as lucky[/URL] [/QUOTE]
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3D TV, High Definition Television, HDTV 4K and AV
HD, 4K TV and Receivers
Skybox / Openbox / Libertview HD Receivers
Openbox s10 power supply failure
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