So you want to repair SOUNDIGITAL amplifiers? Tips & component values

[@Bananerocs]

You should go full louis rossmann on soundigital

[@Conservator.]

🎯 💯

[@ShirazBhutto]

You’re the man!!! You should be an engineer with this talent. Excellent video. You have the most thorough amplifier repair tutorials on KZbin by far, and hats off to you. Keep up the great work

[@Simpleman1078]

FACTS X2

[@matthewmassey2333]

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 🤙

[@antonyarchibold6127]

@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 !!

[@Simpleman1078]

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!!!!

[@h1nicolas]

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.

[@danielsaturnino5715]

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.

[@Fatboy28206]

How do we send you amps for repair

[@LiLthirtSty]

Great info was just thinking about purchasing a SD amp so this is very useful thanks Sam

[@xelectronics5411]

Good explanation I dont see why someone would thumb down on this video because it's A class information 👌👍

[@thytoin1]

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.

[@recon440]

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?

[@bkrgls]

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, 🇺🇸✌🏾

[@barevids]

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 😎

[@bkrgls]

@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. 😆😆

[@ravindramaharaj5834]

@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

[@kissingfrogs]

big fan. love you work. This is exceptional stuff. thanks as always for sharing

[@pliedtka]

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.

[@sethgt1234]

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.

[@sonodrome]

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.

[@13BTRX3]

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!

[@DMBeatBox]

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

[@henningpetersen9183]

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.

[@stevesmith3033]

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!

[@thorlancaster5641]

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.

[@IncreasingVoltage]

99.999% sure that it's locked.

[@MOBAudioUSA]

Thanks again by the way for all the great videos and all the great info Sam!

[@jarnopellikka1033]

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)

[@jededo3]

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?

[@kwesi588]

Check for VCC voltage at the driver iC and also check them zener diode

[@ANDREASDOUSIS]

Hello Friend, I have been watching you videos, I need some help any reply would be appriciated, I try to find the mosfet numbers in a 35k board in power supply section to make repairs, I seen yours are marked as H3 and you use CSD18502KCS, my input mosfets are marked as H2, can I use the same as yours? do you have something as equivalent for H2 marked mosfets?

[@eugenejohnson8635]

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

[@fw1367]

Hello. Do u know were the fuse is located. On soundigital Evox 800:4. Cant find outside the chassi.

[@anthonyjones133]

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?

[@gd6315]

hello where can I find the repair diagrams I am looking for the mofset reference for a digital sound 12000.1 evo2 thank you

[@Happyoldfashionfamily]

Can you go through some hiphonics like this? I have a couple I just cant figure out.

[@rickyelettro9711]

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

[@selvannaidoo3860]

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?

[@shilra2272]

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

[@Miloittybittyboom]

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

[@SQNordeste]

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.

[@bradleewitt4048]

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??

[@tonytrevd4881]

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...

[@shmelby24]

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

[@dwightmorris178]

Have a 8000 soundigital and is the same problem i have

[@yancarloshdalcantara4104]

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?

[@barevids]

you need to buy from soundigital

[@paulcherry1520]

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

[@rishij411]

hi where can I get a sound driver or sound card for a lanzer mini max mnx5000d class d amp?

[@michaelzant4746]

Where can i find the speaker input terminals? I have 2 12k evos that both broke. Thanks.

[@robmaster1435]

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

[@mikerenza2253]

How can u tell what ic chips control the gates of the input and output mosfets

[@teamkingofbassmexicalib.c5937]

Barevids bro can you tell me the serial or model number for mosfetas for a 12000.1 Soundstream tarantula

[@melvincazalas72]

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

[@matthewmassey2333]

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?

[@mikahamalainen3883]

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

[@tobbybrayden2578]

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

[@shoof1696]

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

[@YeseniaLopez-cq9dy]

Where can u order that gold round wire thing for my sound digital

[@antonyarchibold6127]

@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

[@barevids]

use irf3205

[@antonyarchibold6127]

barevids thank you very much!!! lifesaver

[@Clumpy710]

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

[@monosurge]

Hi Sam. Any idea what they're using for the DPAK TO-252 devices in the smaller EVO amplifiers? Thanks in advance.

[@barevids]

For what? Power supply, output, regs, etc?

[@monosurge]

@@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.

[@eugenejohnson8635]

What about them DD Audio are they better then the other ones Audio legion amp and DC amp

[@igorsuv]

i have a bass amp with 2x2 2sc3264 ab class. it often goes to thermal protection mode. how to choose new transistors to eliminate this problem and also get rid of this mt-200 package. help)

[@barevids]

Easy solutions better thermal contact to the heatsink, add fan to heatsink Medium solution turn down the bias Hard solution replace transistors for lower resistance higher efficiency models while keeping within circuit boundaries

[@benyamineliazarpena4332]

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

[@mumifix88]

do you have any suggestions on what to do to increase power output. would be interesting :)

[@ginovannelpawiroastro4076]

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..

[@barevids]

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.

[@badboi162]

Hi mate can you please help me out with big amps 1 in protect and other smokes when gas power going to it

[@TheHateuguys]

I have a 3000.1d the sd light comes on when remote connection is made, but no power protection or clip cycle. What do you think?

[@barevids]

Pic might be dead

[@TheHateuguys]

@@barevids wow, so that one problem you said could not be fixed! Anyways I swapped that chip with one from a 5 k and did not work. I guess I have a 3k watt paper weight.

[@arranjanagol7025]

I have a Jl Audio Amp JX500/1 , the amp always seams to stay on even tho the remote wire is connected , could something be burnt out in it ?

[@barevids]

Check the turn on signal sense switch isn't on.

[@podboris16]

Bro can u help me whit A crown xls1000 one chanel protect.... i dont have an osciloscope..

[@mikerenza2253]

What's a cheaper but decent oscilloscope to buy to fix car amplifiers?

[@ralphfrancisramirez5928]

What is the value H9 mosfet

[@SHUTDOORproduction]

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)

[@nelynell5287]

i have a question im new in the amp repairing and im repairing a zrx2400.1d and i cannot find mosfet 80n70f4 for the power supply section what can i use in replacement of it?

[@barevids]

Irf3205

[@4285sergio]

Irf3205

[@SergeK]

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!

[@barevids]

Power supply and scope share a mains ring ground

[@danielalamo7804]

Greetings, I am working one just like that I mounted the irfb4127 I checked all its components and turned on but I noticed that they heat up faster than normal and I was listening well for a while but I burned them again. What could be the problem??

[@barevids]

Have you made sure the drive waves look good on your scope? And were the fets getting hot on idle? Or only when you play a speaker?

[@danielalamo7804]

Aquece ocioso também. O irfb4127 é o substituto perfeito?

[@danielalamo7804]

Friend is for 2ohm or 1ohm?

[@peteroravecz6791]

Hello Master last week i bought an amplifier unfortunately faulty lit the yellow light constantly. no output power they don't know what the problem is with the amplifier you can fix it for me? Sd35000.1D POWER Pls help 🥺 Thx

[@barevids]

Yes, but only if you are based in the UK. If not, you can find a technician local in your country.

[@peteroravecz6791]

@@barevids Thank you very much for your prompt reply. i live in america and unfortunately i don't know a professional here yet. what do you think might be the problem. i posted on youtube look at the error phenomenon.

[@calebnaidoo174]

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

[@beefysghost867]

Got a 1200.1 that did same thing to me this morning, you ever figure it out

[@mr.sl.957]

Can you explain diferences of normal old D amps and this new soundigitals?

[@barevids]

No difference. Its just two class d amps strapped on the same PCB using lesser numbers of modern high power fets. Alpine were doing it absolutely years ago with the MRP-M2000.

[@mr.sl.957]

@@barevids I understand. So that's why they use less power and have more power in a smaller case?

[@ZoeyR86]

the standing voltage is do to the diodes inside the power fets, MOSI is SPI DATA

[@eddiesurf746]

Can you please help me out with a repair of a 3000.1 SD evox2

[@josedavidalzolayrodriguez1007]

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

[@johnpolaski6126]

Where you been teach missing the lesson 😔 😢 hope all is well and everything good with your family boston Massachusetts checking on ya

[@maddida]

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

[@hastec1]

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.

[@modbox9560]

You have either bad outputs or bad rca circuit grounding on ic

[@modbox9560]

Need more info but troubleshooting for you require you to get voltages

[@hawo1997]

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

[@W3BL4Z3D4NK]

Soooooo I messed up and put the wrong capacitors on my alpine mvr-m2000 when i was trying to repair it. The ones I ordered and installed were 270uf 100v. Turns out I actually needed 1800uf 25v. I tried to power the amp up and the light came on but I got no sound. So I re-opened the amp and thats when I realized that I had installed the wrong caps.. I just ordered the correct caps and will be installing them when they come in. My questions are, would having the wrong caps in cause the "no sound output" and could I have damaged anything else by installing the wrong caps?

[@barevids]

Hi, since you installed higher voltage lower capacitance caps, and these are just used for rail smoothing and supply, this will not have caused any damage to the rest of the circuit. As to why you got no sound, this was unlikely due to the wrong caps. Many amps will produce output with no rail caps present at all. However there are some exceptions.

[@W3BL4Z3D4NK]

@@barevids how could I diagnose the no sound issue? All the mosfets/rectifiers are still on the board. Can I test them while they're still connected to the board? Or is there anything else that would cause the output issue?

[@W3BL4Z3D4NK]

@Dave Micolichek I took it to a buddy of mine who repairs amps and he tested everything and came to the conclusion that the amps driver circuit (which is a very small "daughter board" off the main board) is faulty and needs to be replaced. Unless something else could make that board seem dead I'm assuming that's the problem. Any advice would still be appreciated. Thanks.

[@W3BL4Z3D4NK]

@Dave Micolichek shoot me an email at [e-mail]

[@W3BL4Z3D4NK]

@Dave Micolichek The driver circuit board is covered in a black hard potting compound which makes any pictures of it pointless... any way to safely remove that kinda stuff and get to the actual repair?

[@danielalamo7804]

what is the # of output mosfet for the 1ohm???

[@nikssprogis8663]

Hey.. I have an amplifier which is 2ch and it does says mono amplifier, but it does not shows wish wires/channels is bridgeable... And the output wire marks is ++and - - Not as usual +-and +- I have checked all Google manuals and no one shows which can be bridgeable.. Is it a way to find out which channels is bridgeable??

[@barevids]

It's not two channel. It's mono. It just has two sets of outputs for convinience of wiring multiple subs.

[@nikssprogis8663]

@@barevids OK.. So no difference which output I use? . Power will be the same on each..?

[@barevids]

@@nikssprogis8663 yes will be the same they're just connected together inside

[@nikssprogis8663]

@@barevids OK, Thanks 👍

[@edgaras55555]

nice video. for repairing aab7800 , have c2 issues with 11800 and ordered 4127 m i hope it will work

[@JesusLovesY]

Soundigital sd3000.1 evo clip light is on, no sound what is wrong do you know?

[@barevids]

Output section failure.

[@JesusLovesY]

@@barevids ok thx is that hard to repair? Cheap or pricy?

[@barevids]

@@JesusLovesY complex and can be pricey

[@JesusLovesY]

@@barevids ok thx much! God bless!

[@scootdawg3535]

Dying for some new content bro!!!

[@lastblade75]

What capacitors make a amp 0.5 ohm stable

[@mitchellroberts7954]

So, even with the amp off, shorting the output terminals to ground could be fatal to the amp? :(

[@thytoin1]

Eles usam TL074 do amplificador mais fraco ao mais forte.. não entendo porque mascaram simples OpAmp's, detalhe não mascaram em todos, apenas em algumas linhagens.

[@stormyyoung6344]

What name brands of amps you thank make some good products?

[@VEC7ORlt]

Is soundigital some kind of hot shit if they bother to scratch the markings? Coz everything in that amp is bog standard stuff.

[@UserKadosh]

There is an 8 pin ic called C12 do you know what it is?

[@barevids]

Probably the power supply driver, 4427

[@UserKadosh]

@@barevids thanks, it has an 8 ohm short from pin 6 to ground, i tested another one close by on the board and it doesn't have a short

[@UserKadosh]

@@barevids can you link a datasheet for the ic, thanks in advance.

[@UserKadosh]

I found tc4427, max4427, ir4427 will these work?@@barevids

[@nemetz89]

You are genious! Thank you man!

[@commonsenseisdeadin2024]

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?

[@TEAMMOSFET]

WHAT RMS IS THAT? IS THAT 8K OR MUCH HIGHER

[@lrod2344]

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?

[@Crazylogix007]

Thanks for this Sam!

[@Conservator.]

I’m not in the business but I like your video’s very much and I think this video is xtra cool 😎

[@aieshawilson6456]

Need help with hifonic brx 3016 amp damage out put driver board please