RCF in built Power Amplifier (Made in Italy), How to repaired dead RCF in built power Amp. 

I like way you track volt problem nice video

many thanks for your help with my rcf art 735 repair

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.

Thanks for the video, it's a great help!

you are genius Sir

Power amp videos waitng bro...

Very good video

what is the value of volume controller of RCF 312 MK 2 . I AM not getting it in INDIA (orginal )

What do we do if the limit protection keeps lighting up and the speaker would cut out frequently?

Put a 100w bulb in the power lead! It should still work, but will light if there's a major fault!

Thank you for your help.

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?

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?

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.

How woyld you go about switching over to 110v operation? The manual says its possible by service centre (and fuse change)

Nice find out ...

hello! I have a question. why does the limiter indicator blink 3 times when switched on. Thanks !

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.

Any site to buy new amp for RCF Evox 12? Thank You

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.

You are awesome my brother. Where are you located? Id love to have a friend wizard like you!

Can you give me the index of the resistors around the oscillator ic? Mine has burned out all of its resistance. thank you

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

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?

Whats the nane (code) of the amplifier? How many watts he put out?

Thxs sir . 👍👌

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?

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. :(

what type of mosfet amp is used

I have problem , the hi frequency is not working. What do I do in this case

hi my Fedak active speaker amplifier is going standby mode repair ho jayega kya?

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?

Do you have a schematic diagram for the board? Where can I get one? RCF Evox 12

HOW TO turn the limiter light off ?

I have RCF HDL-20A. This weekend they stopped powering up. Could it be the fuse? Do you know how to repair those?

Hi do u have opera 515dx circuit diagram?

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

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

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

Hello engineer, a question, I have a subwoofer rcf 702 ii, could you adapt the speaker that comes with the evox j8?

El me hiso un corte no me prende como se resuelbe👍😒😒

How did you find out that the IC was the Problem?

Hello, where can I find firmware for RCF ART 725A for PIC16F883? I could not read from the worker, he has protection!

hello I have the same problem, is it possible to name the thing you changed? tnx

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

Nesecitamos manual de servicio o diagrama electrónico

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

do you have schematic diagram

please help me to fix my rcf art715.. its making a loud noise and overheating U15 ci...

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.

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

can u made on rcf Hdl 50 a dsp prob video

Anyone have a schematic for this POS???

❤

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!

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

MY ADAU1701 BROKEN TRACK 26 AND 27, MY BOX AND AN RCF J8, YOU HAVE THE DELS ELECTRONIC SCHEME

I need a RCF amp repaired. How can I get it to you

which irs model does this box use? 2092, 2095?

Nice video. Which city you have repair shop.

Hello sir do you know anybody in Los Angeles ca who can fix RCF?

Need part number for hd10a u14 reference please

Shop kahan per hai

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?

limitter light is blinking can you help me

Where do you get the diodes?

Bhai

How can we get some to order

My unit is an HD 10 a part number for ic u14 reference?????

c 118 wath capacity ??????

C 118 what value is it?

Software rcf art 735-a

How do I buy if?

Hi

Wish u could reply to questions on here😂

coloca legenda please

Das gleiche Problem kein Strom

What is the part number an board reference

Anyone know the part number for the ic u14 reference