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 Post subject: Re: [DVL-919] RD/RA No Power
PostPosted: 14 Nov 2020, 23:28 
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Just got a DVL-91 with no standby light on. I replaced C116 with a UPJ2G010MPD and it resolved the issue.
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 Post subject: Re: [DVL-919] RD/RA No Power
PostPosted: 14 Nov 2020, 23:58 
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I need to get back to this project. I haven't touched it since my last setback.
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 Post subject: Re: [DVL-919] RD/RA No Power
PostPosted: 15 Nov 2020, 01:30 
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Check continuity on all of the fuses, there are several. Ensure all of the replacement capacitors match the original voltage and capacitance. Make sure they are installed the correct way since they are polar. Finally make sure all of your solder joints look good. I use a lot of flux.
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 Post subject: Re: [DVL-919] RD/RA No Power
PostPosted: 21 Jul 2021, 19:20 
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Just wanna say thanks for the instructions. I replaced C116 on a dead DVL-919 and temporarily bridged the blown P612 and it works again. I now ordered new fuses then hopefully everything will be OK again.
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 Post subject: Re: [DVL-919] RD/RA No Power
PostPosted: 22 Jul 2021, 08:38 
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drecksoft wrote:
Just wanna say thanks for the instructions. I replaced C116 on a dead DVL-919 and temporarily bridged the blown P612 and it works again. I now ordered new fuses then hopefully everything will be OK again.


:clap: :clap: awesome!
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 Post subject: Re: [DVL-919] RD/RA No Power
PostPosted: 27 Jul 2021, 17:37 
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I ran into another power supply issue. The player did work except for the front display. I first thought the display may be broken but I found out that there is no power to the display. Seems the -27V is broken. Any idea where to start looking? It's likely the power supply again but a different component. It seems checking capacitors while soldered in is very unreliable.
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 Post subject: Re: [DVL-919] RD/RA No Power
PostPosted: 29 Jul 2021, 12:35 
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It seems the only pin on CN202 with current is +5V, the rest is dead. I already replaced C211, C611 and C512 without any change. I need to order the values for C311,C312,C511.
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 Post subject: Re: [DVL-919] RD/RA No Power
PostPosted: 01 Aug 2021, 02:11 
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Go ahead and replace all electrolytics in the power supply while you have it out.
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 Post subject: Re: [DVL-919] RD/RA No Power
PostPosted: 06 Aug 2021, 18:01 
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I now replaced all on the secondary side but still no -27V on the CN202 :(

Any ideas where to continue the search?
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 Post subject: Re: [DVL-919] RD/RA No Power
PostPosted: 11 Aug 2021, 22:02 
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What does primary and secondary of T350 show?
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 Post subject: Re: [DVL-919] RD/RA No Power
PostPosted: 14 Sep 2021, 18:47 
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I was away for a few weeks.
Now I just tested

DC shows 0V on all pins
AC is around 8,5V on all pins except pin 8

So the issue seems to be before the T350.
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 Post subject: Re: [DVL-919] RD/RA No Power
PostPosted: 16 Sep 2021, 05:08 
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I guess I'd just start where the power comes in. There are guides and videos out there for switching power supply repair since this issue is not laserdisc specific.
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