Hifonics BXI2608D repair Part 1 - Power supply
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- Опубліковано 25 жов 2017
- Part 1 of 2, here I tackle quite an old Hifonics class D amplifier which had blown everything. Not uncommon to see on these, as the protection circuits are very slow. Customer said the speaker leads touched, causing it to go.
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Great video, very informative. It's been 20 years since I was in electronic school, keep up the good work
YES!!! I've been waiting for you to do this board. Thankyou soooo much! Can't wait for part 2! This board is in sooooo many different amplifiers it's not even funny. And thankyou for naming the replacement fets use use, especially the 4 transistors in the middle, very helpful tip! Thumbs up for sure!
Loving these videos! Thank you for making them long too; it truly feeling like I'm watching a TV show; like Modern Marvel or something.
sherkhan808
I'm not a Marvel's fan...but I do enjoy watching these versus some of the crap that's on T.V.
Great Great Great videos. Keep up the good work. I really like the thorough explainations while you are doing the repairs.
Dude...I see why you've learned alot in a year. Seems like you do alot of repairs. Gotta give you credit! 🖒 I've repaired quite a few amps over the years but not on a consistent basis like you. I used to be intimidated by class D amps until I repaired my first one. Actually...it was the easiest repair ever. Just some broken legs on the power supply FETs. LOL! But anyways...keep up the work.
You no your building my confidence to work on my badly damaged amp I've done repairs on amp b4 but it a total different League it was short it when it was taken out psu was short that is it has the main bored and then a input bored it happens eventually keep up the great work and vids
thanks for this nice lesson of repairing. I look forward for your new workbench!
Thank you your videos help me a lot plss make more...I like the you you always detail step by step ways of how things work...
I've been waiting for a hifonics amp keep up the good work I look forward to barevids notifications lol
Can't wait for part 2...
Absolutely great video....!!!!!!
I used to love Hifonics products back in the day. Not sure what their qualities like now days
Thank you VERY much for these videos. I would LOVE to have you as a resource to ask questions, and even PAY for your help; I'd pay as much as you charge in labor to fix them yourself, likely more. I have maybe 10 amps I want to fix and a number of them are the Phoenix Gold Xenon amps which are complicated. I graduated as an Electronic engineer many years ago but never worked in the field, so have a little knowledge and I have been trying to learn repairing amps for many months with little progress - your videos helped immensely.
Some questions I have after watching your videos:
1: Where do you find schematics and service manuals?
2: How do you know if an amp is self-oscillating?
3: If it is self-oscillating, how do you know what to do to force it to oscillate? Example: In your video about a Phoenix Gold amp you had to short several pins to make it oscillate; how did you know what to do for that?
4: If you have an amp where none of the Power supply FETs nor any of the Outputs are visibly bad, and none test bad, what are the top things you look for?
5: When replacing FETs, you mentioned how you may need to adjust the Gate Resistors. Can you explain more clearly exactly how you calculate the adjusted resistor values?
6: If you have a Class AB amp without any service manual, how do you know how to properly adjust the BIAS?
I will send you a connection request on LinkedIn so we can communicate if you are interested.
Thank you!
Travis
loving the vids mate! very very educational :)
also, could you recommend a good budget-y multimetar for audio repairs and audio in general?
For one bro your the shit! And thank you for all your videos and time u spend on helping all of us I've been working on a few amps and seem to run into the same problem alot which is how do u know or find out what certain parts are if they are too burnt to see any identification?
This is great!
Grat video man im learning a lot from you keep them video's coming! I have a question if an amplifier has 8 output Mosfets and it has 2 extra empty spots for 2 more that was not installed from factory what will happen if I install them would the amplifier perform better ??
Yep I do that exact same thing, one fet per bank until everything idles perfectly and everything stays cool.
do the bxi's do rated i can find the bxi4000d on amp performance or somewhere and it did rated(around 2000rms 1 ohm 13.8v), also found the bxi 6000d and it did rated too (around 3000 rms 1 ohm 13.8v) the bxi8000d which im looking at is supposed to do 4000rms at 1 ohm but it is not on the site so i cannot check :( safe to assume it does seeing the lower versions do their rated too? thanks in advance hope to see quick answer cause i am buying an amp around next week! :)
Hey bro! Thanks for all the recent uploads on amp repair. I have just one request. Can you please show where you are hooking your ground lead on your oscilloscope when checking the board. Sometimes it’s earth ground and sometimes it’s virtual. Thank you again for taking the time to record some of your repairs.
answered for you in my Part 2 video that im just uploading :D
barevids thanks mate!
good video!..........i do have a question for you! how do i convert a small AC guita/sono class d amplifier to work on dc battery power|? i know its possible to use a buck converter but, i am not sure where to splice in the the circuit! thanks!
hello nice video i have a question im prototiping my own amp the output section is going to be bought from aliexpres class-d but i will create my own power supply inverter where could i find those ring transformators and calculations (400-500w) are ferrite E cores good enought
@barevids do the same problems has the newer version BRX 12000D? have one. and it makes loud pop when starting. and doesnt go to protect. where should i look for failure?
Can you please explain the difference between the Brutus and Brutus Elite 1st gen 2400.1/2500.1? A well known shop here in the states said they can't repair it and I need to send it in... I just left it at the store.
the power supply, on the MOSFET Drains, is there a RC snubber for voltage spike protection?
I took out those little middle transistors but did not pay attention to the orientation. How do I figure it out now? It’s a glx1000.1d by Hifonics. I’m also not getting good square waves to the power transistors some of them are getting really hot.
i have 2 of theses hifonic's amp a 1700 watt an 3000 watt both after a while just went out lights come on but no sound i took bottom plate off and everything looks brand new no burn or black spots any idea's of what it might be also the remote knob turns red
Marvelous!!! Is that 4 gauge power wire in the amp?. The wire Looks pretty crispy and burnt on the power supply section where it’s attached to the board
Haha! yes it is power wire. The marks you refer to are actually just black CA glue, to keep the wire seated well in the board.
in one of your videos i saw you recommend rscomponents.com .... is this the best site or place to get components like mosfets ect for fixing an amp? is there any other sites or places you would recommend that would be cheaper maybe but still good quality?
I got a question I have a hifonics 1600bxi and it stay in protection mode I opened it and dont see anything burned so wat should I look for
I know this vid is old, but, I have a question. My Hifonics Brutus BRX 640.4 is throwing fits. Plenty of voltage, no overheating, in fact bone cold compared to how warm it usually runs. you turn it up and it just gets sloppy, all the lights on it browning out to the bass notes. All 4 channels bridged into a dual vc sub, matching gains so no issues there. Worked fine for a few months, all the sudden started doing this. Doesn't want to turn off or go into protect though. Thoughts?
Snapped rectifier or mosfet legs perhaps
@@barevids Ok i'll check for that thanks.
I have a Orion street 4 Chanel volt going to the transformer but not switching over to the rectifier wat could cause dat I fix my self cause I love the work give me your advice please on thank
Ive got a hifonics brx 2416.1d about a week ago it went into protect mode so I took the back cover off and found a blown capacitor do I replace the capacitor and still stuck in protect mode any suggestions
Love your vids I have a hifonics app that is malfunctioning in the weirdest way it's designed like the one in this video but it's black it's the Brutus the wonderful blue leds light up but the amp doesn't the power led is not on and neither is the protection led and I checked topped to bottom there are no visible signs of damage and I have checked every component possible with my multi meter and all reads well.....HELP ...... Please
You should do a video on how to fix Bosch 12 volt chargers. Those things die like crazy and yet their is no videos or write ups on how to repair them.
The issue I see with using higher power gate resistors is it raises the chances that you fry the driver transistors if it fails again.
Are those caps really Duracell or some other brand like maxwell with fake stickers?
My driver transisters looked burnt on boatd and one has a split would this shout down the sound out of my amp
Dang!! Note to self....be very careful not the let speaker wires touch!😳😳
Have u messed with any soundstream amps B4 if so what u think of them doin rated
Hi I watched a lot of your vid and I try to fix for myself
Is it possible to order the power supply already assembled.l? Plug in play? If so where can I buy it?
I have an amp that was connected with reversed polarity. There was a brief spark on the terminal. + Was connected to GND terminal. Any suggestions? Hifonics zrx1800.1d
reverse polarity protection diode. most amps have these and they will sacrifice themselves to protect the rest of the amp. If they did its job the amp should just work fine, may need to cut the diodes out. If the amp still got damaged, then you may have a whole host of things which need replacing.
where do you buy those chisels tips? i seared and searched and can NOT find them anywhere...
i thought i recognized the fan start up sound on them psu's there out of a dell poweredge haha
I have 2 new( infinity kappa 4 ) one is dade no power supply no protection light also what to do and
Second amp is only protection red light on
do pots go bad? when i move around my lpf, the signal gets stronger.... not always, but it seems like a bad connection or something ? its a dc audio 2k
ive tried cleaning them with electronic cleaner and it worked for a bit but now its back to how it was.... is there a way to test with a dmm?
I have that same board on my hfi when i touch my transisters with the multi meter they ark what does this mean
my amp is playing and than after 30 sec its getting in protection mode do you know wat part component is damaged/broken ??
My hifonix Brutus 1000x1 is staying on with no remote wire what is recommended can you help possibly fix for me?
Hallo. how can i find a faulty/kaputte PWM IC .prefabricated part with 16 Legs. regards
Were do you get the parts for the hifhonics amplifiers at if you can please help me. Out please I looked for parts and I have no luck it sucks j
where did you get the wide solder tip from?
Please if anyone knows tell that, I'm searching it too, I can't found it.
Just google "spatula tip". I believe that is what he's using.
Hey got a Hifonics brutus brx3016.1d amp it comes on like it should but no sound comes throw to subs what could it be and thanks if u can help please
Do you still repair amps?
Are your caps ran into your power supply or backwards?
Can you fix my amps I have a dd m1b a old-school sony 1000watt 2ch and a power acoustic 2300. The sony is the only one burned up that may not be repairable.
Only if youre in the UK buddy! Its not cost effective to ship across the pond.
No protection on short at the output terminals or just the circuit is way to
o slow ?! Anyway - hifonics was good till generation 9, most of their amps were ZED AUDIO _Steve Mantz design...when he left - it all became pure china sound :D
Great video again !
Could I use MX-4 Thermal compound for the mosfets?
yep but hy880 is cheaper and just as good if not better
@@barevids hi
How can I get in touch with you?
I have one an amps that needs repairing.
Please let me know how to contact you
Thanks
Any word on their newer BXX6000.1D???
Buenas días profesor quisiera saber si podría ayudarme con la matrícula de los circuitos que vienen borrados en el módulo de audio de un amplificador Hifonics brutus brz 2100.D
Dead kaput!!....I like......
Killed to death! :P
It is Thursday my dudes
RWL2012 lol
Why don't you show how to remove the clamps?
How do I fix the terminal
can this be used with a normal pc
Damn no fuses on these bad set up I just bought brx3016.1d which was 600 bucks lol horrible blew it in a week running at 2 ohm on powerbass 3xl ...I think I haven’t checked but it blew fuse on power cable and when I put new on nothing yet I haven’t checked yet but the amp is a week old smh before I had a cadence 2500.1. $$ 264 I was running it at a 1/2 ohm and moved speakers soo hard
Dont you know electronics? Use strong diode to isolate super-capacitors from the power supply-then they will charge automaticly when you switch the supply on and would not discharge when its off.Anyway nice vid man..
No. There are no diodes available anywhere that have a low enough forward resistance to be "invisible" to the circuit when high current is drawn. At this level, every 0.01ohm makes a difference to voltage drop. A physical breaker is needed.
Only an active diode would do - that is, a "diode" made with a few MOSFETs (in back-to-back configuration, because they have an anti-paralleled diode junction inside which is inherent to the design of the MOSFET itself) and a control chip.
Also, super capacitors require current limiting when charging up, because they can draw hundreds of amps!
You could in fact probably make your own switch with some MOSFETs and a proper driver, but if you parallel FETs you have to be really careful in your choice of parts and physical design because FETs don't share current very well. (I.E. They have a negative temperature coefficient. So when their temperature goes up, the resistance goes down, and this means more current will flow, which will create more heat ... until it gets hot enough to smoke! XD)
Show us on how to check MOSFET out of circuit tnx
Where did you learn the word "kaputt"????
CaroMan haha. I have no idea. family probably 😂
I've known that word too since like forever.
Sir ji mono amplifier Chicago not for supply hot is 3205
Please falt
Did you go to school for this because you know alot especially when it comes to troubleshooting and preventve precautions when you work on those amplifiers.
mustang6035 no I didn't buddy, just experience in the field. been doing this for a year now.
Man I have to say you are very good at repairing amps pls make more video you are helping us people who want to have a satisfaction repairing amps like you man keep up the good work
I have a dead hifonics 1800 watt amp, I would love to fix it! Left it on along with my stereo for more than 12 hours, it was at low volume :(
Man can I send you my 1200 Zeus hifonics amp I need some help to fix it before I fuck it up even more cuz I do not have the patience to do all that and the tools to do it
can you assist with technical support? any to contact via email . Friend
Throw that amp in the trash