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Electronics => Repair => Topic started by: DidierAche on April 24, 2017, 03:06:18 am

Title: Rigol DS1054Z - PSU Schematics /Missing components
Post by: DidierAche on April 24, 2017, 03:06:18 am
Hi Everyone,

I'm looking for the schematics or reference of the 2 missing surface mounts components of this PSU for my Rigol DS1054Z

I've attached a picture and marked the missing components.

Many thanks in advance !

DA
Title: Re: Rigol DS1054Z - PSU Schematics /Missing components
Post by: ataradov on April 24, 2017, 03:32:46 am
Why do you need this? They are missing for a reason.
Title: Re: Rigol DS1054Z - PSU Schematics /Missing components
Post by: MarkF on April 24, 2017, 04:25:44 am
Dave did a teardown of the DS1000z scope some time ago and went through the power supply. I don't specifically remember talking about those parts but it may help you.  I don't ever remember seeing a schematic other than one Dave traced out the front end and how Rigol does the bandwidth limiting.
Title: Re: Rigol DS1054Z - PSU Schematics /Missing components
Post by: DidierAche on April 24, 2017, 03:52:43 pm
Thank you Alex,

The reason for my asking is that this PSU is not working - looks like poor soldering and these 2 components are missing

I've see other pictures of these board where the components are in place but the picture resolution is not good enough
Title: Re: Rigol DS1054Z - PSU Schematics /Missing components
Post by: DidierAche on April 24, 2017, 03:56:45 pm
Thank you Mark,
 I watched the video but it doesn't go into these details ... I was wondering if someone would be able to share a picture of their board with a focus on these two areas
I know i'm asking for a lot ... Many thanks in advance
Title: Re: Rigol DS1054Z - PSU Schematics /Missing components
Post by: ataradov on April 24, 2017, 04:22:09 pm
Quote from: DidierAche on April 24, 2017, 03:52:43 pm
The reason for my asking is that this PSU is not working - looks like poor soldering and these 2 components are missing
The soldering looks fine on this board, and it is pretty clear that those components were not installed by the manufacturer.

Although looking at this picture http://www.experimental-engineering.co.uk/wp-content/uploads/2015/08/IMG_20150821_134321.jpg (http://www.experimental-engineering.co.uk/wp-content/uploads/2015/08/IMG_20150821_134321.jpg) , those are resistors with markings "Z6A1" and "6202".

And you have examples of both of them on the board, so you can just measure their value, instead of decoding cryptic codes.

A close up picture with sharp focus would help to determine if they were actually installed there previously.
Title: Re: Rigol DS1054Z - PSU Schematics /Missing components
Post by: DidierAche on April 24, 2017, 11:45:08 pm
Many Thanks Alex!

This is perfect - I'll keep you guys updated

Again much appreciated

Didier
Title: Re: Rigol DS1054Z - PSU Schematics /Missing components
Post by: DidierAche on May 29, 2017, 08:47:44 pm
Two components replaced - all is working fine now

Thank you All
Title: Re: Rigol DS1054Z - PSU Schematics /Missing components
Post by: tooki on May 30, 2017, 11:54:18 am
Quote from: DidierAche on May 29, 2017, 08:47:44 pm
Two components replaced - all is working fine now

Thank you All
Namely...?
Title: Re: Rigol DS1054Z - PSU Schematics /Missing components
Post by: victagayun on July 18, 2020, 05:05:00 pm
Hello,
My DS1074Z got spoilt.
I think I saw an explosion on the power supply because I saw the light of the explosion from its back.
Does this SMPS always have this problem?