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- เผยแพร่เมื่อ 24 ส.ค. 2024
- It's annoyed me for some time now that Soundigital are so secretive with their part numbers inside their amplifiers. I would understand it more if they had developed a totally new and unique circuit design that offered something over and above the competition but in reality this is just your bog standard high switch freq class D circuit. So i decided to share for you guys some of my findings which should help you get these amps back up and running. They are not overly complicated and there are a limited number of components here that can fail so in effect by replacing enough of them you should eventually hit jackpot.
You should go full louis rossmann on soundigital
🎯 💯
You’re the man!!! You should be an engineer with this talent. Excellent video. You have the most thorough amplifier repair tutorials on TH-cam by far, and hats off to you. Keep up the great work
FACTS X2
I really would really like to see some content again. I was getting really excited learning new things about the inner workings of the hobby/lifestyle I love. Hope all is well 🤙
That PIC chip is just performing the PWM for the PSU, you could replace it. It should also be monitoring the 12V supply, the output supply, temperature, possibly aux supplies and over current conditions. It has nothing to do with the amplifier control and feedback, that driver chip you are mentioning controls the amplifier stage. So, you could retrofit and bypass the PIC chip, or program your own, if you know how :) By the way, those 5 test points are actually in-circuit programming points, the IC can be soldered on the PCB and then programmed.
YOU ARE THE MAN and I HAVE THE UTMOST RESPECT FOR YOU. Ty for all you do NEVER EVER think you are not APPRECIATED cause you are very much so buddy!!! MUCH RESPECT AND GOOD KARMA!!!!
@barevids thanks again for your advice, parts arrived this morning (from rs) checked gate drive signals (ok) installed the mosfets and we have a working amplifier again!! brilliant !!
Where have you been? Please do some more live videos. I don't think you know how many of us miss watching you do your thing.
Great info was just thinking about purchasing a SD amp so this is very useful thanks Sam
Good explanation I dont see why someone would thumb down on this video because it's A class information 👌👍
big fan. love you work. This is exceptional stuff. thanks as always for sharing
How do we send you amps for repair
I work in an electronics laboratory, but it is in a large industry, there I use equipment from ABi electronics, a Boardmaster 8000, this equipment does not work miracles, but it can save you days of analysis, even more so in the industry when a machine that runs 24 hours a day there is a problem with some electronic card this is a huge loss, so we have to be quick in the diagnosis. As these amplifiers do not have many components, it is easy to track defects in-circuit, mapping, checking V-I curves, etc. obviously, you often need another board in good condition, but over time you end up not even needing it, because you get used to some V-I curves of certain components, and you see the difference even without having another good board to compare, detail using multimeters, measuring resistance or anything like that doesn't usually work, so this V-I curve method really helps. And it still has the advantage of analysis without any type of power supply on the board and this avoids an accident that can add another problem and even render the equipment unusable.
Thank you so much for this video. I have a Sundown Audio SFB5000D on my bench that's in bad shape. At first I wasn't gonna touch it but I can't go out without a fight 😄😄. But, with this video, Google, and some other videos...I think I can get it back to working. Every once in awhile I'll buy a working amp to help aid me in the repair of another amp. But, since the part numbers aren't there it would have been pointless this time. Once again, great video and hello from Alabama, 🇺🇸✌🏾
Nice! Message me on barevids facebook page as there are some differences the clones have, and this is quite an old video now and I have better tips 😎
@barevids
Cool! Thanks man I'll message you when I start back on it that way the info will be fresh in my old mind. 😆😆
Thanks again by the way for all the great videos and all the great info Sam!
Solid video man. Thank you for this. I'm trying to get a behringer eurolive speaker back to life. The thing poped a couple of mosfets and one of the driver ic. I'm a noob in electronics, and I'm looking at the speaker connections and I see 40volts on both. Accoeding to the schematic it looks right. I never tried to fix a lass D amp so this is all new to me. I'm scratching my head. The supply should be 70+ and 70- and its up there close to 80. Perhaps because I dont have a load atached. Anyway, replaced the ics and mosfets and what looks like an signal inverter ic. Feeling confident, power on and smoke comes fast xD
The struggle is real. I'll keep diging. Again, thanks for the video.
sooo sad you live in UK. i have a amp. that no one has been able to fix. and. i´m sure that you would be able to fix it. have watch your vlogs for some time now. keep up the good job. we need more guys like you.
Car audio manufacturers must hate you. But yes some of them will grind the part no. , so people are required to send the equipment to manufacturer or service centre - this applies also to many Hi-end audio firms or other 'special' equipment. One of the best D-class explanation videos.
Awesome vid, really great you're sharing this info. BTW, the test pad near the PIC labeled "MOSI" is a Master Out Slave In connection. It's for SPI (Serial Peripheral Interface) communication, it's used by the PIC to send data. It might possibly send diagnostic information that you could find useful when working on these amps.
I hope all is well with Sam. You've been quiet lately. Hope you had a great Christmas, and that you'll have a happy New Year!
Hi, I was just wondering while you're on this topic... what is inherent to the Brazilian amps topology that makes them make insane power with what appears to be seemingly sparse guts (compared to Koreans? Also, any implications on reliability?
I just found your channel and subscribed. Very knowledgeable and love listening to your fast, articulate delivery. I noticed a really cool looking manual solder sucker that you were using in one of your videos. It looks great! I haven't been able to find one that I'm happy with. Can you give me the brand or a link to one? Thanks so much!
You are genious! Thank you man!
Dying for some new content bro!!!
Thanks for this Sam!
@barevids I have a soundigital 1200.4 but I can't get the power supply and out put fets and well as the modulator ic . Where would I get that info
You are a hero for sharing this, a la mierda con soundigital :poop:
Ya i was wondering if you could tell me what to use for the 3 led chips for the power light clip light and protectlight the 15vt chip next to the mosffett transistors
Have you tried using the JTAG port to dump the firmware of the PIC? Even though it would not yield the original source code, you could copy the firmware onto other PICs if the original ever died.
99.999% sure that it's locked.
Much love!
Where you been teach missing the lesson 😔 😢 hope all is well and everything good with your family boston Massachusetts checking on ya
Does anyone know, where 5V that PIC uses is generated. I think that in one amplifier this voltage is low an pic resets itself (reset loop)
The one thumbs down must be a salty sound digital dev lol
Hi it's selvan from south Africa, I have a 5000 sound digital Evo 1. One of the sound transistor is damaged. Can I go higher that 100A 40v?
Thank you
Hey Sam or other fans. Would you happen to know the dual stacked RCA female connector replacement? The RCA that accepts input and the other accepts output?
You should do a video on how to find faults and trace them and how to read multimeters for the people who don’t know how to start doing this or for the ones who don’t have a oscilloscope. Only just an idea. It may help quite a few people
Unfortunately repairing amps is FAR FAR more difficult if you don't have an oscilloscope. They make cheap handheld o-scopes that work well.
Can you go through some hiphonics like this? I have a couple I just cant figure out.
Es desde República Dominicana no inglés pero entiendo bien eres muy bueno reparo ese tipo de equipos aqui y me falta mucho por aprender te seguiré en tus videos
I think about buying a amp 5000.1 audio legion the other one is DC 5.0K - 7.0K which one do you think is the best amp on the market
the standing voltage is do to the diodes inside the power fets,
MOSI is SPI DATA
Hello. Do u know were the fuse is located. On soundigital Evox 800:4. Cant find outside the chassi.
Hi ,,. I've asked you before and wrote down all the parts I needed to fix my B2 RIOT 16k,..... Unfortunately I lost the paper I wrote it down on
I have a sound digital 800.4 it has 2 30 amp fuses in them, the one on the right pops every time I put a new one. What should I look for?
The Test points near the PIC chip and the other one with CLK and MOSI are programming headers. It actually says in circuit programming isolation resistors on the PCB as a clue. CLK is programing clock signal, DAT (for the PIC is programming data). Same for the other masked chip, CLK is clock signal and MOSI stands for Master Out Slave In (programming data), When not used for in circuit programming the pins can be used for other purposes, which is why you see a square wave on the MOSI pin. It's likely an AVR programmable micro of some sort, as they use an SPI bus for programming, PIC chips have their own programming format.
The 12v on the main rail at standby, and the single main rail voltage indicates the use of a non isolated boost converter. The 12v will feed through it's rectifiers to charge the rail caps even when the converter isn't switching. For the high power it's probably an interleaved converter, and why a micro (the PIC) is used to control the power supply.
Great, thanks for the info!!
@@barevids The only issue is that if the masked chip is some sort of programmable chip, the VCC of 16V seems way too high, but there does seem to be a 5.6v zener close by that could be used to drop this to the usual around 5v for most micros. I can't be certain, without knowing the function of the IC. I quite often reverse engineer circuitry, as I repair electronic devices as a hobby (for people that I know), quite often reverse engineering the whole device if it's not too complex (takes quite a while though).
@@threeMetreJim where you from buddy uk. :D
Hope you don't mind me asking.
I have a mono amplifier that plays well but as soon as you oush it to about 3/4 volume it goes into protection.
Test 3 other amplifiers in the same vehicle and no issues.
Voltage is over 13v signal everything seems fine.
Any ideas of what could be causing it?
Any help would be greatly appreciated
I’m not in the business but I like your video’s very much and I think this video is xtra cool 😎
Great vid! I have a broken soundigital nano 3000.1/1ohm. Every part is missing :D Probably the H3 and A6 fet's will figure out somehow but the output side gate drivers are totally missing, theyre 8pin (half bridge?) and this one you got on the video had 16pins
I need the RCA parts for the soundigital amp I cannot find it anywhere Do you know the model number of the RCA and put
hello where can I find the repair diagrams I am looking for the mofset reference for a digital sound 12000.1 evo2 thank you
Nice video, bro love your work... Was wondering if u ever took a look at any of those Chinese plate amps that use 12v to see if they can be improved thanks
Thanks .. Good work keep it up
I thoroughly enjoy your vids and have learned alot. Regarding THIS video ... do the part #s hold true for the Power Series amplifiers? More specifically the Power 8800.1D?
Why does Taramps takes longer to clip when wired lower than when wired high ? You mentioned this when settings gains with subs connected to amps would really love your explanation
This actually makes my brain hurt like I'm studying for a test lol
Hope you are ok, been MIA for a long time
Help need bro I've got a class d 4000 logic. When I turn on the amp with speaker hooked up the subs start to go up and down, drawing lots of current . If I fire her up with no subs and reconnect sub everything works fine. Plus when I touch the output wire my subs makes a loud hummm. Hope you can shed some light. I love your vids and have fixed a couple of amps after viewing your content, thanks a million bro.
You have either bad outputs or bad rca circuit grounding on ic
Need more info but troubleshooting for you require you to get voltages
I can't stand that they remove the IC numbers. What a joke. Right to repair laws need to be more strict, and I hate overegulation
As someone who both designs and repairs circuit boards, I fully support right to repair. And I love this guys channel! Playing devils advocate for a moment, it is quite possible they are grinding the numbers off to protect their design, to make it more difficult for people to copy it. This is a somewhat common practice. Assume these guys created a design that they feel gives them an advantage in the market (cheaper to build, works better for same cost, etc..) For something as relatively simple as an audio amplifier, it would not be that difficult for someone in the industry to copy the design, or figure out their trade secrets, especially if they know all of the parts to use. Patents are often not a solution in today's world. Patents don't always deter manufacturers from other countries, and they're horribly expensive to defend, often so expensive that it doesn't make financial sense. And in today's global economy, you might just need patents in every country that your product might be sold into (or copied and sold into), plus the cash to defend your patent in each of those countries. Plus someone keeping a lookout in each of those countries for copies. Making it more difficult to copy by obscuring the identity of the parts might be a more effective, and more financially feasible way of deterring copies. It is very possible they are grinding the numbers off to prevent repairs, but at least as likely that they are doing it to make copying more difficult.
Edit --> One more thought; maybe the parts they are using are copies of name brand parts, and they don't want anyone to know they are knock off parts.
Hey its almost like a car dealer selling a new car you paid for but they burned a few holes in seats it's totally unfair when you own that device in full price for them to modify chips that are not manufactured by sounddigital
Manufacturer should go after company's like that basically there copyrighting there own parts
@@modbox9560 no that's not true. It's more like Tesla not letting anyone else but themselves fix there cars. And if you sell your car they remotely remove autopilot from the car for the next owner. Doesn't make sense shouldn't be like that
@@MLProductions.1This wasn't serious
Hi bro, great video.
I've also got a sd12k evo2 and also the amp comes on bit the clip light is constantly on. Also going to try replacing the SH1B chips
Got a 1200.1 that did same thing to me this morning, you ever figure it out
Nice Video man. I have a ground zero 12k here for repair (the identical board) with burned psu mosfets ... probably they are NOT csd18502ksc in my case ... these are IRFB428 which are also only in brazil available and are also sold as oem sd psu transistors .... probably I think they are specifically designed for them (45v Vds qnd 195A Ids at 25C) ....these are difficult to get her ... if you are interested i found an available type (60v 195A) also in an TO220 housing (IRFB3006) which you can get in europe (i get them from Reichelt) ... but as i got no datasheet from the oem fet i hope the new irfb3006 ar similar im gate specs ... especially gate charge ... I hope the gate driver will hold that
a little blobby on the solder. It's cool to see you doing this sort of stuff Sam
yeah man, this one had resistors and bits removed and replaced 1000s of times while figuring things out. ill clear it up before it goes back :)
nice video. for repairing aab7800 , have c2 issues with 11800 and ordered 4127 m i hope it will work
do you have any suggestions on what to do to increase power output. would be interesting :)
What would cause a Skar T-1400.1d to get hot at positive and negative terminals? I’ve tried on my bench and in my cars and still does it?? I’ve checked mosfets, gate resistors on power supply section. Could ic cause it? Or what should I check first??
Sir why you are not making videos these days,
Pradeep Suryawanshi i love his vids. Very informative and entertaining. 4 months no new vids. Not good :(
@@Todestelzer yes sir, me too waiting for barevids
Thank u!your awesome,if u could open up a JL Audio hd 1200.1 or hd 900/5 I and small group of people who work on amps would rather not pay jl 240 $ to refurbish these amps.again sir thank u,saved my expensive sd amp with this video.
Hi, i have an problem with my 8000evo, the fan don't turn on when it become hot.
Do you have an idea of the problem or what i need to check? thanks
is there a way to tell if an amp can make rated power by just looking at the board. i use to go by fuse rating but some amps dont have it. im referring mostly to regular class d amps
Any word on the protection chip? I have a db 11800 that someone removed a bunch of chips and output fets. I notice you are showing the db 11800 on your bench as well.if you know what fets I should put in that would be amazing as well. this video gave me everything else needed. I am very thankful for you, however, where is it you have gone my man?
Hello friend, where can I buy the pic16f1828 but it is programmed because I don't know how to program it for my soundigital 10k amplifier?
you need to buy from soundigital
I've got a 2001d MB quart went into protection mode when voice coil in sub went bad any ideas no smoke no sounds no smells. Pulled lid nothing llooks bad.
Can you please help me out with a repair of a 3000.1 SD evox2
I have a helix p400 amplifier, which is in trouble. I can't identify the defect because the model is microcontrolled by a CY8C26443, and the pwm wave is distorted like a sawtooth.
What is the value H9 mosfet
I have a hifonics colossus 3000w that I had given to me. Do you have any videos on one of those? Unfortunately all I know about it is that it doesn't work
Can you do a pg sx2 amp teardown? You reviewed the previous model about a year ago, just curious if things have changed. (and how bad I got screwed on my sx2 1200.1 and sx2 800.4)
Hey men, una pregunta...
Tengo un amplicador 4 canales de 2200W.!
Cuando lo enciendo los "Pre-amplicadores" se empiezan a calentar por si solos, aunque no se le esté dando uso al ampli...
Fuera de eso el amplificador funciona bien, todos sus canales suenan por igual.
Mi Pregunta es, eso es normal? Pues la cosa me está preocupando un poco.. Los detalles del amplicador son:
Marca; Lanzar vibe. 2200w 4 canales.
Aunque no sepa hablar inglés soy un seguidor de tu canal, me gusta lo que haces! Saludos y espero me puedas ayudar
How can u tell what ic chips control the gates of the input and output mosfets
Hey I have this exact amplifier SD12k. Recently pulled my amplifier first-time mounting to box only in for 1 week. Amplifier was working when I pulled it out. The real capacitor got stuck to the back plate heard it come unhinged, I have one capacitor that seems to be broken off. Need to replace no other faults noticable should I replace? Or send to amp tech? Where to get new cap 200v 2200uf?
110 degree in my car and on my way to work my sd8000 2ohm went . 1 corner mosfet and a 100 fuse thing next to it went also. Easy fix? I may have to do myself...
I own Soundigital 1600.1 1 ohm fan stopped working and I hear a high pitch sound. Any tips?
So, even with the amp off, shorting the output terminals to ground could be fatal to the amp? :(
What's a cheaper but decent oscilloscope to buy to fix car amplifiers?
Yo mate are you OK havnt seen you in but hope everything okay hope you had a goos Christmas and New year much love brother
He passed
@@toms3502 please be a troll and say that's not true man why are the good ones first to go please what happened last I herd he was over in America doing some collaborative videos with big d and exo man I'm so sad I love Sam he will be missed damn I hope his family are holding strong much love ❤️❤️❤️❤️
@@toms3502 y u like dis
@@barevids mate I'm so happy knowing u are here 😂 Tom's a sicko man much love man now I know your about can I pick ur awsome brain I have a oz 50.4 and channel 2 input isn't working but if I heat with hairdryer behind the rca it starts working but remove heat stops really 😕
@@ewardw6062 bad solder joints on rca block, take the board out and reflow all solder points on the legs through the board
hello can you maybe help me i would need the names of the chip prog.1 that is the right next to the potentiometer with 14 pins thank you
Where can i find the speaker input terminals? I have 2 12k evos that both broke. Thanks.
I have an amp just like this. And I just broke it... the negative speaker wire came loose from amp while playing and now it don’t work.. nothing looks burnt
Where can u order that gold round wire thing for my sound digital
hi where can I get a sound driver or sound card for a lanzer mini max mnx5000d class d amp?
HI, When you measure a drive train wave, it looks like you operate one probe without ground clip connected. I always thought that ones need a two probes in diff mode on gate-source to measure this? What is your setup to achieve this? Thank you!
Power supply and scope share a mains ring ground
I have a rockford that has a chip that is 130 on it it one if the square ones that soldier on both sides what is it called I'm trying to find on to fix it and have no clue what it is called
WHAT RMS IS THAT? IS THAT 8K OR MUCH HIGHER
What about them DD Audio are they better then the other ones Audio legion amp and DC amp
Barevids bro can you tell me the serial or model number for mosfetas for a 12000.1
Soundstream tarantula
Hi Sam. Any idea what they're using for the DPAK TO-252 devices in the smaller EVO amplifiers? Thanks in advance.
For what? Power supply, output, regs, etc?
@@barevids Hi Sam, The Evo 800.4D uses 8 TO-252 MOSFETs in the power supply and a single pair of TO-252 MOSFETs for each of 4 outputs. All are heavily defaced. I was going to go on a parametric hunt for something suitable but figured it couldn't hurt to ask you.
Hi mate can you please help me out with big amps 1 in protect and other smokes when gas power going to it
Hi, I have the problem with my Soundigital 12000.1D EVO. I found blown resistors 10k and 3,3k at the pins 14, 15, 16 of lower IRS20957S. I replaced two driver chips IRS20957S, buffer chips ZXGD3005E6TA, blown resistors, shorted diode MURS120 at U1D and tantalum capacitor nearly lower IRS20957S. Now i have at the speaker output -1V DC but still no audio and CLIP LED is still light on. Output power mosfets checked and they are good. Can you tell me what i need to do next?
Check for VCC voltage at the driver iC and also check them zener diode
❤️
@barevids hi would you happen to know by any chance what power supply mosfets are used in a inphase ipa 600 ? i cut them out with a view to repairing it as they had all gone short circuit, and i have since lost them and have no clue what they were!! i have irf540n in my head but i repair a lot of dj power amplifiers and could just be plucking numbers from something i have seen in one of them🤦🏻♂️ thank you
use irf3205
barevids thank you very much!!! lifesaver
Need help... sd3000.1 evo.. i accendently reversed connected the Main power 12v to the Negative.. input power suplly... what parts do i need to focus on to get it working..
Ah crap, that could have taken out SO many parts, due to the way these amps use the 12v live... I'm afraid without seeing it here I wouldn't be able to say.
What name brands of amps you thank make some good products?