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Hitachi L37V01U standby fault 17PW20 v2 - Printable Version +- 306oc - Peugeot 306 Owners Club & Forum (https://www.306oc.co.uk/forum) +-- Forum: General (https://www.306oc.co.uk/forum/forumdisplay.php?fid=6) +--- Forum: The Couch (https://www.306oc.co.uk/forum/forumdisplay.php?fid=7) +--- Thread: Hitachi L37V01U standby fault 17PW20 v2 (/showthread.php?tid=2211) |
Hitachi L37V01U standby fault 17PW20 v2 - cully - 14-03-2012 thought id have a go at making a little cash so ive bought a 37" hitatchi lcd for £25 that wont power up have done some testing and the powersupply is out! so now to get to component level Re: whats wrong????!!!! - mark_airey - 14-03-2012 is this the one you posted on facebook? lol whats wrong????!!!! - Jonny b - 14-03-2012 Dont know but f*ck me that's a right lash up in there, was going to say have you checked the internal fuses but then remembered who's thread this was Re: whats wrong????!!!! - cully - 14-03-2012 mark_airey Wrote:is this the one you posted on facebook? lol the one i posted on FB was a bush which had a simialar fault which i repaired for a m8, that cost a whole £4 in components and heat paste to repair Re: whats wrong????!!!! - cully - 14-03-2012 ha ha found a schmatic for the PSU whats wrong????!!!! - Jonny b - 14-03-2012 Cully your killing me here. Maybe Iam missing something being on my phone? Wtf is it Re: whats wrong????!!!! - cwspellowe - 14-03-2012 Is that a map of the underground? Re: whats wrong????!!!! - cully - 14-03-2012 lmao its the diagram for the power supply in the 37" lcd tv im trying to repair! Re: whats wrong????!!!! - cwspellowe - 14-03-2012 Ah yes, I understand it a whole lot better now you've explained that. Honest. ![]() Re: whats wrong????!!!! - procta - 14-03-2012 fuckin hell, cully! how did you learn how to fix this stuff? Re: whats wrong????!!!! - cully - 14-03-2012 self taught mostly but google is king ![]() basic knowledge of how stuff works and hours of ripping broken stuff apart to see how it works Re: whats wrong????!!!! - Toms306 - 14-03-2012 Argh, lots of wires! ![]() ![]() Re: whats wrong????!!!! - cully - 14-03-2012 have stripped out the PSU and desoldered the likly culprits 2x 15nF 1000v capacitors ive measured them and they are open circuit searching for replacements ebay has come up with a repairkit for the power board so will do them all when it arrives £4.80 delivered Re: whats wrong????!!!! - procta - 14-03-2012 cully Wrote:self taught mostly but google is king you cannot beat self taught! i did repair our house alarm twice. once me dad decided to f*ck about with cable trunking and cut a main wire. told me mum "oh the alarms gone off" after he decided to gaffer tap the wires back together. so while he was at work, and my mum going off in a one about the alarm. as she saw his bit repair. i said i will solder the wires back and ask the fourm if any sparkys are on there. did a post and i was told what fuses to check and change. with in an hr we had a working alarm. also he blew a senor too so i swopped that for a new one too. not bad for someone whos never even played with stuff like that. also i sorted the internal battary too as that died, my mum had replaced it but the system was still down. i told her to switch the power off in the house and i budged the ends of the battary. full system came to life again. saved a fare few quid again ![]() Re: whats wrong????!!!! - Ruan - 15-03-2012 Everything these days is made with cheap, shit capacitors wherever possible. Fucks me right off. The amount of DECENT equipment chucked away due to failed caps is unreal. whats wrong????!!!! - kentiiboii - 15-03-2012 That's why I'm doing laptops ATM. The amount in buying just because it needs new keyboards, a screen inverter or just dead memory. I bought 4 ylod ps3 for £30 from a lad that thought he knew what he was doing. And I've fixed them and sold them £80 each. And still have plenty I'd parts for them. Re: whats wrong????!!!! - cully - 20-03-2012 ow oow guess what ![]() no i havenot got a MX5! i have got the telly working though!! he he haha! im still waiting for some components to attempt a repair on the powersupply as its not a simple capacitor replacement job but ive found a working PSU on ebay ! bonus!!!!! Re: whats wrong????!!!! - Niall - 20-03-2012 Gunna start selling these before too long? Re: whats wrong????!!!! - ginge191 - 20-03-2012 my head hurts... and how much for that telly now ![]() Re: whats wrong????!!!! - cully - 20-03-2012 oooow £150 its yours Re: whats wrong????!!!! - 3DHDi - 21-03-2012 Paul, you sir are a very clever chap! Even self teaching myself to do something like that I know full well I would get mighty pissed off and bored with it lol! Re: whats wrong????!!!! - Bananalad - 21-03-2012 Fair play fella! Know anything about ps3s? Are they worth fixing a ylod one? whats wrong????!!!! - Jonny b - 21-03-2012 Bananalad Wrote:Fair play fella! Know anything about ps3s? Are they worth fixing a ylod one? Peice of piss off you know what your at bud, it's only reflowing a couple of bga's Re: whats wrong????!!!! - td_dan - 21-03-2012 Well done cully iv done this a few times, quite easy once you know what your looking for and can make a fair few quid, but doing it all day does get boring sometimes lol Re: whats wrong????!!!! - cully - 21-03-2012 just a little update the tv is working now on its original power supply! as ive repaired that to component level replaced 2 mosfet chips and it burst into life ![]() for anyone interested the mosfets are a fast switch which turn 350vdc back into rough AC before being converted into the many rail voltages in a TV price break down faulty tv £25 capacitors £4.80 Mosfets £6.30 Replacment power supply £29.99 i should be able to sell the PSU i bought from ebay to recoupe some of that money but if i dont a working 37" HD lcd tv for £67 aint to bad..... down side is now the kids want it in their bedrooms il just add a few key words so google bot will draw people here Psu repair kit for the 17pw series of vestel power supply 17PW20 v2 Hitachi L37V01U A standby fault Q814, Q813, Mosfet STP9NK50ZFP C877, C878, 15nF 1000v IC829, 78L05 C817, 220µF 25v C801, 33µF 50v C901, 4,7µF 50v C892, 100µF 50v Re: Hitachi L37V01U standby fault 17PW20 v2 - cully - 22-03-2012 just sold the telly via facebook for £150 Re: Hitachi L37V01U standby fault 17PW20 v2 - mark_airey - 22-03-2012 cully Wrote:just sold the telly via facebook for £150 WINNING ![]() Re: Hitachi L37V01U standby fault 17PW20 v2 - Eeyore - 22-03-2012 well done! Im doing a fault finding module on my university course. What i find more difficult than anything is setting up the circuit with a crap diagram :/ |