Mitsubishi cs-2710ra vertical problem
in [Repair]
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From: ladybug on 20 Aug 2006 15:24 My trusted Mitsubishi cs-2710ra died, it displays thin horizontal bar on the middle of the screen. I can see picture elements in the bar . I'm debating if it makes sense to fix it or just trash it. I'll attemt to fix it first by myself but I need help to troubleshoot it. Please help me to troubleshoot it or give me suggestions what to look for. Thanks!
From: longman on 20 Aug 2006 15:56 ladybug wrote: > My trusted Mitsubishi cs-2710ra died, it displays thin horizontal bar > on the middle of the screen. I can see picture elements in the bar . > I'm debating if it makes sense to fix it or just trash it. I'll attemt > to fix it first by myself but I need help to troubleshoot it. Please > help me to troubleshoot it or give me suggestions what to look for. > > Thanks! Check the electrolytic capacitors on the board that the yoke coil plugs into. Most of the time that is the problem. You may need to replace more than one.
From: ladybug on 20 Aug 2006 16:12 longman wrote: > ladybug wrote: > > My trusted Mitsubishi cs-2710ra died, it displays thin horizontal bar > > on the middle of the screen. I can see picture elements in the bar . > > I'm debating if it makes sense to fix it or just trash it. I'll attemt > > to fix it first by myself but I need help to troubleshoot it. Please > > help me to troubleshoot it or give me suggestions what to look for. > > > > Thanks! > > Check the electrolytic capacitors on the board that the yoke coil plugs > into. Most of the time that is the problem. You may need to replace > more than one. Do I need to unsolder caps for checking? How can I see if cap is bad with multimeter? If you can get a hold of schematics can you tell me which caps to check?
From: rb on 20 Aug 2006 16:37 It's best to use a ESR meter for finding bad caps "ladybug" <natayz(a)gmail.com> wrote in message news:1156101865.115187.139950(a)h48g2000cwc.googlegroups.com... > My trusted Mitsubishi cs-2710ra died, it displays thin horizontal bar > on the middle of the screen. I can see picture elements in the bar . > I'm debating if it makes sense to fix it or just trash it. I'll attemt > to fix it first by myself but I need help to troubleshoot it. Please > help me to troubleshoot it or give me suggestions what to look for. > > Thanks! >
From: Leonard Caillouet on 20 Aug 2006 20:39
"rb" <123(a)Ishotmr.lee> wrote in message news:fK3Gg.19192$eL2.3524(a)tornado.rdc-kc.rr.com... > > It's best to use a ESR meter for finding bad caps Actually an ESR meter will not identify all or even most of the bad caps in this set. Some will have high esr, most will be physically leaking electrolyte, and some will be low in capacitance. This problem may be caused by leaky caps at the vertical output IC and/or in the 12V supply. Ther will be at least a dozen more that need to be replaced or more problems will be occurring soon. The circuit traces that are corroded from the electrolyte leakage will need to be repaired and all of the residue from the caps will need to be washed from the board. We fix these all the time and they are a "pay me now or pay me more later deal." We don't even touch tem if the client does not want to pay to have all the bad or failing caps changed. Just fixing the vertical circuit is a sure way to get a recall in a few weeks or months with an unhappy client. Leonard -------------------------------------------------------------------------------- I am using the free version of SPAMfighter for private users. It has removed 2046 spam emails to date. Paying users do not have this message in their emails. Try SPAMfighter for free now! |