Interesting. It seems RCF and dB-Technologies have a shared amplifier platform. A lot of the RCF boxes down from lower speced ART series all the way up to even some HDL series or also dB-Tech seems to have exactly THIS amp module inside. Also my RCF NX45 has the same module. It seems some get a powercon, some others the standard-plug and only differentiation via DSP-firmware. dB-Technologies however is advertising them as DigiPro G2 amplifer (at least the boxes with this specific amp module). Would be interesting how they share R&D or production.
@realmuziklover28316 ай бұрын
Great video I’ve got a rcf 712a on the tops I’ve got dc voltage that sounds like a firecracker for about 10 seconds then it stops any idea of the problem?
@TKFElectronics6 ай бұрын
Problem in Amplifier circuit section , may be Amplifier ic issue
@acousticelectronics55552 ай бұрын
what is the value of volume controller of RCF 312 MK 2 . I AM not getting it in INDIA (orginal )
@djripm5 ай бұрын
Any site to buy new amp for RCF Evox 12? Thank You
@zaferhussain-dy6qp Жыл бұрын
you are genius Sir
@TKFElectronics Жыл бұрын
Thank you bro
@lyndonmukadam80063 жыл бұрын
I like way you track volt problem nice video
@lyndonmukadam80063 жыл бұрын
Ek Number
@roberthorvath81142 жыл бұрын
How woyld you go about switching over to 110v operation? The manual says its possible by service centre (and fuse change)
@TKFElectronics2 жыл бұрын
Yes it is possible, pls mail me on this mail id electronicstkf@gmail.com
@redsoundaudio63234 ай бұрын
If not mistake there should be a place to add a jumper and is set. Fuse is only for protect but still work if you dont change.
@TranNgocQuynh198810 ай бұрын
Can you give me the index of the resistors around the oscillator ic? Mine has burned out all of its resistance. thank you
@TKFElectronics10 ай бұрын
Which resistor value u want, write it's no. written on pcb board i will try to give you.
@МиленСашев Жыл бұрын
hello! I have a question. why does the limiter indicator blink 3 times when switched on. Thanks !
@TKFElectronics Жыл бұрын
After blinking 3 times, what is the further status i mean Amp is working or not working
@kairilofi7009 Жыл бұрын
What do we do if the limit protection keeps lighting up and the speaker would cut out frequently?
@TKFElectronics Жыл бұрын
Some electronic components in Pre Amp board might be defective or Amplifier board can also be possible
@vincenttony8333 жыл бұрын
many thanks for your help with my rcf art 735 repair
@TKFElectronics3 жыл бұрын
Welcome
@adyadrian1658Ай бұрын
Hy.i have a RCF Art 312 mk3 after i turned on all 3 led's are on.what are the problem?please help me !!!
@TKFElectronicsАй бұрын
It's looks like either DSP ic faulty or program ic
@adyadrian16588 күн бұрын
Can you help me.where is the program ic.please
@blacktiger65767 күн бұрын
Ciao. Ho una cassa come quella si è bruciato il componente vicino il canon e non avendo un schema elettrico non so cosa poteva esserci. Mi puoi dire per favore che compente c'è li e il valore? Grazie
@TKFElectronics7 күн бұрын
What's app me photo of which part no. U need, this is my whatsapp number +91 9653123582
@frankyquadros467510 ай бұрын
Hi do u have opera 515dx circuit diagram?
@ahmedsahid5036 Жыл бұрын
Do all of these use the same SMPS IC chip? I have 1 HDL-10A and 1 HDL-20A which initially had a short and would blow the fuse. Replaced the 2 MOSFETs near the SMPS chip as well as the chip itself but still no power. All SMD components are reading fine including resistors, diodes, transistors, etc. The original SMPS was labelled "S21531D" and got replaced with "S2153D" and I'm wondering if they are not the same thing. The second line on the original reads "905P" while on the replacement SMPS it says "125P". Would that make a difference or should I order the exact same thing and replace them again? Fuses are no longer blowing and there is power getting to the board the same as shown in your video.
@edwarddilleyjr.1270 Жыл бұрын
My unit is an HD 10 a part number for ic u14 reference?????
@TheChristian94945 ай бұрын
Whats the nane (code) of the amplifier? How many watts he put out?
@mrsonor10902 ай бұрын
Maybe a strange question, but I lost the volume knob. Exactly the one that is in this video. Do you have any idea where I can order a new one. It was lost during a rent out :( Thanks for the video. Best regards from Sweden.
@TKFElectronics2 ай бұрын
Volume knob is easily available in local electronic market located in your city
@mrsonor10902 ай бұрын
@@TKFElectronics Ah, thanks :)
@drazenbradara40332 жыл бұрын
I have same model, and I have to put the volume all the way up on this amp and the mixer to get some sound output what do you think is the issue?
@TKFElectronics2 жыл бұрын
Not understood your questions
@syaifuddinmiftahul71686 ай бұрын
what type of mosfet amp is used
@JoaoCarlos-ik8kr2 жыл бұрын
I have a module like this for repair. There is a hum when turning on, no LED lights, but there is voltage in the primary source, there is voltage in the secondary source, but I don't think they are correct. Could you tell me what are the voltages on the secondary side of the source?
@TKFElectronics2 жыл бұрын
Replace both ic in Amplifier section, may be it will work, I don't have circuit diagram
@djbart80632 жыл бұрын
hello i hope you can help me. i have a rcf 410a mk2. the problem is that there is no sound coming from the speaker. woofer and tweeter are good. amplifier does fire up and the status light comes on. if i hook it up to a audio source and play a song the signal light wil go on, so there is signal comming thru the amplifier. but no sound from the speaker. some ic or something defect?
@demetriusjrrabino804911 ай бұрын
Hello, i have a rcf312a mk4, even the volume is at full, still the sound output is at minimum.. And bal/unbal xlr link not working properly if mic is installed at xlr slot, but working in TrS slot if i change the mic wire into trs.
@TKFElectronics11 ай бұрын
Looks abnormalities in Amplifier board section, pls contact on this mobile no. for details. 9653123582
@rajendrathakur882 Жыл бұрын
hi my Fedak active speaker amplifier is going standby mode repair ho jayega kya?
@TKFElectronics Жыл бұрын
Yes & my contact no. 9653123582, location mumbai
@AsherElbaz5 ай бұрын
Very good video
@TKFElectronics5 ай бұрын
Thanks Bro
@DjGCue714 ай бұрын
were are you located? last night i did a wedding in a barn when i turned on my RCF Evoke 12's they started smoking, I quickly unplugged everything, turn them back on after about 1 hour and now they won't turn on. :(
@TKFElectronics4 ай бұрын
Bro I am located in mumbai (India), where u located?
@DjGCue714 ай бұрын
@@TKFElectronics california
@TKFElectronics4 ай бұрын
This is my contact no. +91 9653123582 Pls what's app me in order to assist you
@edwarddilleyjr.1270 Жыл бұрын
What is the part number an board reference
@officially_craigj2698 Жыл бұрын
Do you have a schematic diagram for the board? Where can I get one? RCF Evox 12
@TKFElectronics Жыл бұрын
Sorry don't have
@anmmolnaik7104 Жыл бұрын
I have problem , the hi frequency is not working. What do I do in this case
@TKFElectronics Жыл бұрын
Bro First check smd component around HF ic & if smd component is good then replace HF ic .
@anmmolnaik7104 Жыл бұрын
@@TKFElectronics bro can I have your phone number, I will call you .
@macelius2 жыл бұрын
Thanks for the video, it's a great help!
@TKFElectronics2 жыл бұрын
Welcome bro
@sjlopez5562 жыл бұрын
I have RCF HDL-20A. This weekend they stopped powering up. Could it be the fuse? Do you know how to repair those?
@TKFElectronics2 жыл бұрын
Yes, it is repairable, depends on spare parts availability.
@sjlopez5562 жыл бұрын
@@TKFElectronics do you have a video for that? I would like to try and repair it myself if I can
@TKFElectronics2 жыл бұрын
No video on this model bro
@sekaraudiojolarpet72323 ай бұрын
Power amp videos waitng bro...
@TKFElectronics3 ай бұрын
Bro very busy No time to upload.
@ygung2 жыл бұрын
Thank you for your help.
@TKFElectronics2 жыл бұрын
Welcome bro
@skyoptics11 ай бұрын
HOW TO turn the limiter light off ?
@TKFElectronics11 ай бұрын
Bro there is problem in amplifier therefore limiter led light is ON, if you want to off it first clear the problem.
@guillermopabloespinosa7480 Жыл бұрын
Nesecitamos manual de servicio o diagrama electrónico
@danieleegidi7908 Жыл бұрын
Hi, I have the same amplifier, but the problem is that the 2 MOSFETs, which are driven by the IC you changed, go in short-circuit. I took them apart and no other components seem to be faulty. Do you think I should replace the same IC that you replaced to fix the problem? Do you have any available to ship to Italy? Thank you
@TKFElectronics Жыл бұрын
Bro before replacing ic & MOSFET with new, be sure shorting is cleared first otherwise those new also get blow off. Better buy spare parts from your local ELECRTONICS market only.
@danieleegidi7908 Жыл бұрын
bro, I confirm that after removing the mosfets, the short on the circuit is no longer there but reassembling them they would burn. I understand this because at the fused post I mounted a lamp that absorbs the current. in italy there is no ic but only in china. Do you know if there is an equivalent?
@TKFElectronics Жыл бұрын
No equivalent, u need to install of same no.
@leandrocruz1623 жыл бұрын
Hello engineer, a question, I have a subwoofer rcf 702 ii, could you adapt the speaker that comes with the evox j8?
@TKFElectronics3 жыл бұрын
You mean to say that, you want to utilise evox j8 speaker to RCF 702 right
@leandrocruz1623 жыл бұрын
si señor el altavoz pequeño de arriba , ponerselo a el subwoofer 702 !! rcf pero el altavoz o speaker tiene entrada arriba speakon y el subwoofer no tiene esa entrada que se piede hacer ?
@leandrocruz1623 жыл бұрын
yes sir the small speaker above, put it to the subwoofer 702 !! rcf but the loudspeaker has a speakon input above and the subwoofer does not have that input, what can I do?
@TKFElectronics3 жыл бұрын
Dear brother, pls email me in detail inorde to assist you my email id electronicstkf@gmail.com
@fclightsandsoundvlog51759 ай бұрын
do you have schematic diagram
@DrAVRECEIVER3 жыл бұрын
Nice find out ...
@davidbonney55572 жыл бұрын
I have the same amp, however when I turn it on it makes a very loud pop sound just for a second. What could be the issue?
@ElectronicsforYou891 Жыл бұрын
Check the opamp mc33078
@randohinn6691 Жыл бұрын
Hi! I have this same problem. Have replaced both power mosfets, the 3 diodes near them that were shorted, the mosfet driver IC. However, on power applied these all short out again. What should be the next part to test/replace? On an art 712a-mk4
@TKFElectronics Жыл бұрын
May be some other smd components located near ic, u need to check those also Bro
@randohinn6691 Жыл бұрын
Okay. Might be that U17 is dead too, I'm gonna check that.
@randohinn6691 Жыл бұрын
Replaced the timer ic as well. No luck
@randohinn6691 Жыл бұрын
I will email you
@caloydevilla8803 Жыл бұрын
Good day my friend i have that rcf same model but the problem is they have dc volt on hi output terminal it was a 3 vdc. Im asking a help for what should i do or what component should i replace? TIA
@TKFElectronics Жыл бұрын
Hize (tweeter) right, pls check HF ic & around smd components
@caloydevilla8803 Жыл бұрын
@@TKFElectronics good day my friend where did i get that circuit diagram or what name of website? Thanks
@TKFElectronics Жыл бұрын
Bro circuit diagram unavailable
@DennisWpunkt Жыл бұрын
How did you find out that the IC was the Problem?
@TKFElectronics Жыл бұрын
By checking ohms on ic pins, i am getting abnormal ohms on ic pins.
@edwarddilleyjr.1270 Жыл бұрын
Anyone have a schematic for this POS???
@giorgiispirov71292 жыл бұрын
Hello, where can I find firmware for RCF ART 725A for PIC16F883? I could not read from the worker, he has protection!
@TKFElectronics2 жыл бұрын
Dear bro, to be very Frankly & honestly No idea, because so far i haven't face any such type of problem in RCF 725A.
@mehul81082 жыл бұрын
can u made on rcf Hdl 50 a dsp prob video
@angelzepeda20763 жыл бұрын
Buen día muy buen video disculpe ingeniero me podría ayudar con la pieza u15 parece ser un regulador nibt3ngo el número de matrícula mi bocina en rcf art 715
@TKFElectronics3 жыл бұрын
Pls write in English,
@elzegergoncalves47373 жыл бұрын
please help me to fix my rcf art715.. its making a loud noise and overheating U15 ci...
@TKFElectronics3 жыл бұрын
Try to check by replacing U15 ic, if not solved just inspect surrounding components pls
@saadov12 жыл бұрын
hello I have the same problem, is it possible to name the thing you changed? tnx
@TKFElectronics2 жыл бұрын
Not understood, pls explain in detail
@edwarddilleyjr.1270 Жыл бұрын
Need part number for hd10a u14 reference please
@TKFElectronics Жыл бұрын
Pls what's app in detail in order to guide you properly on this no. +91 9653123582
@mikedubz55763 жыл бұрын
You are awesome my brother. Where are you located? Id love to have a friend wizard like you!
@TKFElectronics3 жыл бұрын
Thank you bro, I am from Mumbai ( india) & you are from where
@anmmolnaik7104 Жыл бұрын
I have same model , I can’t hear the sound, lots of scratching sound send me your number , I will call you
@TKFElectronics Жыл бұрын
9653123582
@ravvoltsmusic3 жыл бұрын
which irs model does this box use? 2092, 2095?
@TKFElectronics3 жыл бұрын
20955S
@ravvoltsmusic3 жыл бұрын
@@TKFElectronics thanks bro! I'm my language , Obrigado irmão!
@TKFElectronics3 жыл бұрын
Welcome my dear friend
@dertymoney65573 ай бұрын
I need a RCF amp repaired. How can I get it to you
@TKFElectronics3 ай бұрын
Your location pls
@dertymoney65573 ай бұрын
Petersburg Virginia
@dertymoney65573 ай бұрын
Rcf HD 10 A will not power up
@TKFElectronics3 ай бұрын
My What's app +91 9653123582, send details of your HDL10 inorder to guide you properly.
@selectorerwin1don123 жыл бұрын
Hey Technician im interested in knowing where the speaker wires plugs in on the circuit it have 4 pins showing H+ H- & L+ L- which connection to use to connect to speakers for sound i really need help on this i bought this amplifier to be convert my passive woofer to an active
@TKFElectronics3 жыл бұрын
H+ & H- will go in tweeter speaker terminal. L+ & L- will go in Mid speaker (Big speaker) terminal
@selectorerwin1don123 жыл бұрын
I try to i put the speaker trminal on the both wires and same frequeny is being out put so im thinkn if the amp was design for 2 speaker have 2 built in amp with ch1 ch2 but 1 channel playing like a different frequency 30hz and the other playing 40hz and above
@selectorerwin1don123 жыл бұрын
Quote its a subwoofer Amp rcf 708-As ii or mk2
@_a.z3 жыл бұрын
Put a 100w bulb in the power lead! It should still work, but will light if there's a major fault!
@arthuraslibekyan2 жыл бұрын
Hello sir do you know anybody in Los Angeles ca who can fix RCF?
@TKFElectronics2 жыл бұрын
No sir, i don't have any one in LA. I suggest you to contact RCF service center.
@BjorgenEatinger2 жыл бұрын
I have the exact same problem, but I can't figure out exactly what chip you replaced. Can you please let me know what the part number is? Thank you very much!
@TKFElectronics2 жыл бұрын
PWM ic no. IR2153S in SMPS.
@BjorgenEatinger2 жыл бұрын
@@TKFElectronics My RCF stopped working just today, on a show. It happened when a musician plugged in power strip upstream from where this speaker was plugged in, and the power strip seems to have shorted out. And this in turn appears to have blown out my RCF speaker in the process. What makes this IC chip blow out like this, or on the amp you repaired in this video?
@TKFElectronics2 жыл бұрын
Tell me bro how can I help you
@BjorgenEatinger2 жыл бұрын
@@TKFElectronics I was just wondering why this particular chip goes out. What is it's functions?
@BjorgenEatinger2 жыл бұрын
@@TKFElectronics Is this at location U14?
@farhatshaikh39543 жыл бұрын
Thxs sir . 👍👌
@TKFElectronics3 жыл бұрын
Thank you for watching my video
@sandeirocompositor3 жыл бұрын
hello friend, i have a rcf hd12 box similar to the board, i replaced this same part but it didn't turn on, can you give me a hand ?...thanks
@TKFElectronics3 жыл бұрын
Bro before replacing IC & both Mosfet, I recommend u to check surrounding Electronic parts, may be their is any parts might have been faulty. Just check some small smd parts near by ic
@sandeirocompositor3 жыл бұрын
@@TKFElectronics thank you for answering friend...an irs was exchanged and this piece you exchanged, but they were really burned, it was tested, it was the power outage that caused the problem, i'll try what you said if i have more tips, it's ok coming...thank you very much friend.( forgive my english is the translator)
@@sandeirocompositor você trocou as saídas dela? Os Mosfet e o irs20955s?
@velf41372 жыл бұрын
Where do you get the diodes?
@BjorgenEatinger2 жыл бұрын
I think you mean the IC chip?
@BjorgenEatinger2 жыл бұрын
I think you mean the IC chip?
@johnrielreyes25532 жыл бұрын
Hello brother I have rcf tt25 My co worker he will out at 380 volt blow up the the speaker and have power the the pre amp but no power the amplifier and i open blow the varistor And i change but still no power Please can we help me for this problem Thnaks
@TKFElectronics2 жыл бұрын
Pls tell me how can I help you, & where r u from Bro
@TKFElectronics2 жыл бұрын
Oh kabayan pare, kumasta kana, Mabute, I am from Mumbai,(india) , I know only little tagalu because I used to worked with philipinos in Dubai before. Pls what app me clear photos of circuit board (SMPS board)on this Mob. +91 9653123582 so that it is quite easy to assist you pare
@canyouyou2 жыл бұрын
limitter light is blinking can you help me
@TKFElectronics2 жыл бұрын
Problem is in Amplifier board or DSP Board bro
@canyouyou2 жыл бұрын
hello from Turkey
@TKFElectronics2 жыл бұрын
Hi from india (Mumbai),
@pubgking-gs1bf2 жыл бұрын
Shop kahan per hai
@allcargologistics13033 жыл бұрын
Nice video. Which city you have repair shop.
@TKFElectronics3 жыл бұрын
Thank you for watching my video brother, in Mumbai
@TKFElectronics3 жыл бұрын
My shop is in Mumbai (india)
@josealfredfernandes3 жыл бұрын
@@TKFElectronics I'll courier my power amplifier to you, please repair and send back. Protect E04 & Protect E03 issue.
@borishuikeshoven42042 жыл бұрын
Hey Tech, my amp does not have output to the sub. I have DC voltage everywhere. Treble speaker got sound, but nothing on the sub. Speaker seems to be fine. Any tips?
@knoblauchwarrenwk10 ай бұрын
Check to see if pins 45 and 46 on the ADAU1701 DSP have a short between them. If they do then Digikey has the ADAU1701 for about $20. This was after replacing 2x 470uF/25 V capacitors that were failed and bulging.
@TKFElectronics10 ай бұрын
Not understood your question bro. What exactly u r facing problem.
@johnaidoo2744 Жыл бұрын
How can we get some to order
@TKFElectronics Жыл бұрын
You mean to say to order spare parts, pls clearify what exactly you r looking for
@ravvoltsmusic3 жыл бұрын
I'm with a box like this making hum in the source, I've done tests I changed capacitors but the hum that generates in the source Chopper, comes out on the speaker! I used Google translator
@TKFElectronics3 жыл бұрын
Problem is in Amp board, check small small smd resistor & PF capacitor
@selectorerwin1don123 жыл бұрын
Check ur building Earth connection that is on ur power outlet
@zaferhussain-dy6qp Жыл бұрын
❤
@crisoforoduran1612 жыл бұрын
C 118 what value is it?
@TKFElectronics2 жыл бұрын
1mf/100v
@crisoforoduran1612 жыл бұрын
@@TKFElectronics THANKS A LOT!
@TKFElectronics2 жыл бұрын
U r always welcome sir
@gleisondivi3 жыл бұрын
MY ADAU1701 BROKEN TRACK 26 AND 27, MY BOX AND AN RCF J8, YOU HAVE THE DELS ELECTRONIC SCHEME
@TKFElectronics3 жыл бұрын
Pls mentioned exactly model no. & Complete details what exactly u required
@gleisondivi3 жыл бұрын
@@TKFElectronics o modelo da caixa , Rcf Evox J8 , esta com o adau 1701 queimado e trilhas rompidas , tem um email pra te mandar umas fotos pra vc ver ! obrigado
@TKFElectronics3 жыл бұрын
Pls email me with photo of u r unit what exactly u r looking for, pls write comments in English
@TKFElectronics3 жыл бұрын
My email is electronicstkf@gmail.com
@spmonoromonemanband15692 жыл бұрын
How do I buy if?
@TKFElectronics2 жыл бұрын
What do you wanted to buy bro
@crisoforoduran1612 жыл бұрын
c 118 wath capacity ??????
@crisoforoduran1612 жыл бұрын
THANKS A LOT!
@wizardx41873 жыл бұрын
I've repaired hundreds of these. Usually I fit the bigger mosfets and diodes omitted in this smaller variant. They don't come back after this is done.
@vincenttony8333 жыл бұрын
Do you have service manual for art 735 ( many thanks) when i switch on i hear a buzzer sound then after 30 sec i can play my music
@TKFElectronics3 жыл бұрын
Pls mentioned details about u r unit
@vincenttony8333 жыл бұрын
My problem is when i switch it on for the first time i hear a sound coming out from the Tweeter and slowly after some sec the sound disappear then i can increase volume
@TKFElectronics3 жыл бұрын
What will happen when you increase the volume, sound is cmg or not my friend
@vincenttony8333 жыл бұрын
After this sound ok
@landyvillalon13642 жыл бұрын
El me hiso un corte no me prende como se resuelbe👍😒😒
@furtadoproducoes29372 жыл бұрын
coloca legenda please
@TKFElectronics2 жыл бұрын
Pls write in English, not understood
@furtadoproducoes29372 жыл бұрын
@@TKFElectronics put the video with subtitles please
@TKFElectronics2 жыл бұрын
Ok bro, you are from which country
@furtadoproducoes29372 жыл бұрын
@@TKFElectronics I'm from Brazil
@furtadoproducoes29372 жыл бұрын
my box had the following symptoms: it turns on normal and suddenly the speaker below stops working, and suddenly it starts working again......I also noticed that it gives a little click when it stops and too it clicks when it will work....I believe the problem is in the primary source....would you be able to tell me what it could be...thank you
@selectorerwin1don12 Жыл бұрын
Wish u could reply to questions on here😂
@TKFElectronics Жыл бұрын
What ?
@selectorerwin1don12 Жыл бұрын
@@TKFElectronics on those Rcf amps above where the speaker wires are being connect above have a smaller part seems like it for something to plug in is it a fan or some kinda of limiter light to be placed infront of the speaker grill area
@TKFElectronics Жыл бұрын
Not understood your question bro, pls email me on this electronicstkf@gmail.com with photo of your RCF Module inorder to guide you properly.
@yok..9742 жыл бұрын
Das gleiche Problem kein Strom
@DennisWpunkt Жыл бұрын
Hast du ne Lösung gefunden?
@yok..974 Жыл бұрын
@@DennisWpunkt würde repariert Teil kostet ca 40 50 Euro aber Scheiss arbeit ins gesamt ca 200
@pubgking-gs1bf2 жыл бұрын
Bhai
@TKFElectronics2 жыл бұрын
Mumbai
@محمدالوادية-ع1ح3 жыл бұрын
Software rcf art 735-a
@TKFElectronics3 жыл бұрын
Hi MOHAMMED, software won't be available, except Manufacturer my dear.
@mehul81082 жыл бұрын
Hi
@TKFElectronics2 жыл бұрын
Hi bro
@edwarddilleyjr.1270 Жыл бұрын
Anyone know the part number for the ic u14 reference