How can we do that for any SMPS "SMPS Modification"
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Re: SMPS Modification
????Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809 -
Re: SMPS Modification
A SMPS (switch mode power supply) is very complex.
There is NO "universal" way to adjust or modify a smps. Some allow some fine tuning, changing the voltage a bit, but how much it can be adjusted it depends on the controller used and the components used.
There are some limits which are imposed by the components used (how big or how good the inductor or transformer is, the mosfets or diodes used and their technical specifications and so on).
So short story: there is no "do that and it will work".Comment
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Re: SMPS Modification
I do not have that book to read so I do not know what it means with "MODIFICATION SECRETS", modify it to make it do something that it is not designed for, modify to make it better, etc.?Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: SMPS Modification
I think it is a advert scam by yong? I will ask topcat what he thinks.Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: SMPS Modification
That stuff is your typical affiliate marketing crap, it's just a ebook/pdf with some stuff you can learn from application notes (smps topologies, designs, explanations).
Maybe there's some pages explaining how he repaired some boards and what to look for.. and maybe he gives you access to some repair forum or answers to a couple of your emails.
You'll find a lot of affiliates bragging about the "book" because they make 40-60% of the price as commission.
The sales page is here: powersupplyrepairguide.com (copy and type in browser url box, I'm not letting google index it). It's typical sales pitch, long page, lots of text, lots of highlighted text or bolded text or dvd/book covers (because older people like physical books and buy thinking it's actual book or dvd they can shove in dvd player), lots of repeats to reinforce the message, lots of insurances, lots of money back guarantee, testimonials, lots of pushing to buy. Lots of apparent claims, but if you read carefully and analyze the wording, you'll see that legally he's not actually promising anything.
I know, because i worked when I was a student as email support guy for a company that sold several products using similar sales pages.
About 10-20% of tickets were refund requests because people thought they're buying physical dvds or books.Last edited by mariushm; 07-18-2014, 02:34 PM.Comment
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Re: SMPS Modification
I wonder to!!Originally posted by zooma.techComment
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Re: SMPS Modification
scam/spam/crap.nothing in those books you cant learn here free.
i dont want to see anymore reference to these.you already look like a shill.Comment
thanks for the heads up.
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Hi, I would like to share with you small modification to your Bosch tool 12V and 18V chargers.
You can use it for almost all Bosch chargers what I have seen, for example part numbers GAL 18V-20, GAL 18V-40, GAL 1880, GAL 18V-160, AL 1820, AL1115CV, AL1130CV.
Bosch (today also other brands using the same system like Wurth, Fein) does not care if you destroy your batteries, because they can sell you new ones. So the marketing is telling you only about speed of the charging, so you will not wait for your batteries to charge too long. Me as a customer want the tools and batteries...05-24-2024, 01:00 PM -
This relic from a technology path that came to a dead end (but still has historical interest) was brought in with a dead SMPS, which is based around a MK1210 device. I got it going after a battle. It seems to have a strange design - if it's not getting feedback that the secondary is OK it cause the big FET to go into full conduction and overloads resulting in a blown fuse at best or something worse! I'm using a Dim Bulb Tester (70W/230V) which thankfully has saved the day a number of times whilst repairing.
Now, it loads a CD OK. The motor voltage output (which is built onto the SMPS... -
I have this Huntkey HK340-72FP PC SMPS where I am facing a strange problem where the SMPS shuts down when the load on any of its 12v output rails goes above 2 amps while the rating of each 12v rail is above 10amps capable.
I have checked the following:
1. All output caps are OK, and all output rails read correct voltages at no load
2. All output diodes are OK
3. NTC is ok
4. Hi voltage cap on input correctly reads 150uF on LCR meter per the spec, also the bridge rectifier is OK
5. No short in main switching MOSFET
6. All other components... -
Hello,
I'm troubleshooting a PA speaker Mackie Th15 (schematics attached).
It is basically a smps with amp and some dsp.
The issue is that on the secondary side I read +/- ~23V instead of the expected +/- 38V. Indeed all secondary side and feedback/aux rails are like 1/2-3/5 of the expected values.
Q2, Q3, C35, C40, C33, C36, C41 and C42 were tested out of circuit with a component tester and read fine. Most of the other components on the primary were tested in circuit and seem to be fine. +HV to -HV on primary is ~330V.
By the way, the ferrite core of L10 is broken,... -
Hi everyone,
There actually was a time when early SMPS and late bakelite housed electrolytic caps coexisted in high end industrial gear. A friend of mine just got himself a CNC milling machine form that time with its first set of now 41 year old caps still installed in the PSU... and it's malfunctioning.
Two of the caps have already leaked slightly onto the board. I have not desoldered or measured any so far but they should qualify for replacement.
Now I'm wondering what to put in there as a replacement. First idea was state of the art low-ESR Nippon KY,...
Comment