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#20181 - 12/16/19 04:00 PM
Re: Broadcom BCM7424 VU+ Duo² white LED
[Re: Giovanni001]
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VIPF Japhar
enthusiast
Registered: 03/08/15
Posts: 218
Loc: Netherlands
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Sorry to hear but as I say earlier, it only helps if it's not a hardware issue.
Maybe it's still not working because one, or more nand flash chip pins does not soldered well, the ones which are used, or maybe it's because you have used your old nand flash chip. However, when the programming went well, then there should be no reason to think that it's caused due this.
_________________________
Doing nothing leads to nothing. ------------- Please note, for technical support ------------- Will be given here, or on the jb8a8f8 forum and I prefer it in English. Johnny B. Click on the banner if you like to go there..
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#20197 - 12/17/19 05:59 PM
Re: Broadcom BCM7424 VU+ Duo² white LED
[Re: Giovanni001]
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VIPF Japhar
enthusiast
Registered: 03/08/15
Posts: 218
Loc: Netherlands
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Yeah, hard to say if it's due the dc to dc regulator, or caused due a to heavy load onto the Vout pin which is as far as I know used for the Cpu and the Network.
But I have here a Ohms overview, the VIN must be loading up to around the 1865ohms, and the VOUT 1215ohms. Measured between a ground spot and the measurements spot.
But still, indeed it could be a defective Dc to Dc ic what is more common.
Attachments
Duo2-U807.jpg (62 downloads)
_________________________
Doing nothing leads to nothing. ------------- Please note, for technical support ------------- Will be given here, or on the jb8a8f8 forum and I prefer it in English. Johnny B. Click on the banner if you like to go there..
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#20209 - 12/19/19 04:36 PM
Re: Broadcom BCM7424 VU+ Duo² white LED
[Re: Giovanni001]
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VIPF Japhar
enthusiast
Registered: 03/08/15
Posts: 218
Loc: Netherlands
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The Vin voltage are fine, the Vout not, but that you already noticed. As for the Vout ohm value, is indeed incorrect and could indeed be the U807 because it normally should deliver this voltage output when the circuit is 800ohms, but actually, you only know it for sure when you remove the U807 and to check if the ohm value goes up from the Vout, or just wait when you have the new one and see if it's helps.
_________________________
Doing nothing leads to nothing. ------------- Please note, for technical support ------------- Will be given here, or on the jb8a8f8 forum and I prefer it in English. Johnny B. Click on the banner if you like to go there..
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#22249 - 11/14/20 11:51 AM
Re: Broadcom BCM7424 VU+ Duo² white LED
[Re: Giovanni001]
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stranger
Registered: 11/14/20
Posts: 3
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@ Giovanni001 did you fix the Vu+ duo2? I have a similar problem with white led light.
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#22252 - 11/14/20 12:34 PM
Re: Broadcom BCM7424 VU+ Duo² white LED
[Re: Piotrekop]
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Japhar Member
Carpal Tunnel
Registered: 10/21/10
Posts: 2649
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Take a look here, https://jb8a8f8.com/support/index.php?threads/duo2-white-light-fault.372/#post-3007TS @ Giovanni001 did you fix the Vu+ duo2? I have a similar problem with white led light.
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DM8000, DM800se, DM500HD, DM800HD, DM7025, DM7020s, DM7000, DM500s VU+ Solo, VU+ Uno, VU+ Duo, Kathrein UFS910 Tivusat, TNTSat, Fransat, SSR/TSR, BBC1-2-3/ITV DE-OpenBlackHole 1.4 image : http://www.openblackhole.com/
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#22263 - 11/15/20 05:35 AM
Re: Broadcom BCM7424 VU+ Duo² white LED
[Re: Giovanni001]
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stranger
Registered: 11/14/20
Posts: 3
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@Toysoft we know this link. I have been at the stage of replacing capacitors for a month now, but I do not recommend doing it because it is very compiled and very difficult. I had to buy a lot of new tools for this repair. This is not a hobbyist job!
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#22264 - 11/15/20 06:19 AM
Re: Broadcom BCM7424 VU+ Duo² white LED
[Re: Piotrekop]
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Japhar Member
Carpal Tunnel
Registered: 10/19/10
Posts: 9978
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Did you had a chat with Johnny ? He could be the best person to talk with about your issue. Admin @Toysoft we know this link. I have been at the stage of replacing capacitors for a month now, but I do not recommend doing it because it is very compiled and very difficult. I had to buy a lot of new tools for this repair. This is not a hobbyist job!
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