How to Repair Dead dB Technology DVA S30N Active SubWoofer Power supply Module DIGIPRO 1500S

[@clifforddsouza8224]

Fantastic. Loved the detailed explanation.

[@TKFElectronics]

Thanks brother

[@vishalsookhai1092]

Hello great work. I have a digipro1500 that i repaired. It would not power on originally. I got it to work, however under full volume the 1500 is restarting. All IGBT’s are new along with the pfc chip and fan

[@TKFElectronics]

Bro not understood what u r trying to say, pls what's app me on this [phone] in detail in order to assist you properly.

[@vishalsookhai1092]

@@TKFElectronics okay I will

[@carlotheatheistii546]

hello friend! Nice job for fixing the digipro amplifier. hey i have a question. how do you adjust it's volume sensitivity? does it rotate from left to right? what volume position it's unity gain?

[@TKFElectronics]

Thankyou sir, your correct pls rotate from left to right for max. Gain

[@jeffersonrafaelsuareztomay2072]

Que estudiaste para saber reparar esos módulos y si en universidad o instituto , me ayudaría mucho tu información ya que me apasiona ese trabajo , gracias

[@TKFElectronics]

Pls leave your comment in English

[@jeffersonrafaelsuareztomay2072]

@@TKFElectronics What did you study to know how to repair those modules and if in a university or institute, your information would help me a lot since I am passionate about this job, and I want to study it, thanks  Comentarios

[@TKFElectronics]

My dear u need to study Batchelor of Electronic in Engineering, but in university u won't be able to study in detailed, just basic information u will get to know only & rest depends on your experiences bro.

[@izzzzzz6]

Funny how the short did not show when testing on the board, i wonder if the heat from the iron finally finished the job on an already bad transistor. Perhaps it was just a bad contact with the test leads.

[@ankush746]

sir my ht iv300 surround R,L sound is making different sound and if i put max volume it is going to push protect

[@TKFElectronics]

Bro u r iv300 needed Repairing

[@ankush746]

@@TKFElectronics what may be problem, the ic

[@TKFElectronics]

Not sure

[@izzzzzz6]

might be half of the pre drive not working or only one side of the output transistors, can you put the output signal on a scope and see what the waveform looks like? If it's not a nice sine wave (assuming you are injecting a sine wave at the input) then you might only have half of the wave, causing distortion and bad bias resulting with protection kicking in.

[@ankush746]

@@izzzzzz6 ok and i am not getting hdmi display output

[@musakeskin2471]

I have 4 db s30s and the mute led of 2 of them are blinking and working. Is there a problem?

[@TKFElectronics]

But it is in working condition despite of mute led blinking 2 time. OR audio output is muted during normal working condition

[@joseluismedellin8568]

Can you help me please mi Red led on status is flashing in red always.

[@giorgiispirov7129]

Hello friend, I have exactly the same problem on DIGIPRO 1000S. All the components that were on the board were soldered again! I checked everything down to the smallest resistors! Transistor all intact! Everything seems to work, but there is no power at the output! I no longer know where to look for the problem. NE555 , IR21531 changed.

[@TKFElectronics]

May be some weak components in primary side bro, your location pls

[@giorgiispirov7129]

@@TKFElectronics I living is Georgia Tbilisi, Sakartvelo bro.

[@giorgiispirov7129]

I achieved that, at the output, power appeared, but not complete, half of what it should be! But I connect through a 500-watt lamp! The lamp burns brightly and blinks a little. We can say that, almost a short circuit. I'm afraid to connect directly without a lamp! But the power supply starts up and the transvomator makes noise!

[@izzzzzz6]

@@giorgiispirov7129 if a 100W or similar sized lamp stays bright when connected in series with the power input then you still have a problem. It usually only stays bright for a second until the capacitors charge and the induction inrush settles down. Then it should only glow dim or not at all until power is being demanded by the electronics. If diodes capacitors and transistors are not the problem you might have a short on the transformer windings but it is less likely. Did you find the problem? Did you check for voltage with only the power supply connected because the short might be in one of the other circuits, check for dc out with the power supply running on it's own with nothing else connected, take care of high voltages.

[@highseasshipping8995]

A giant ship engine failed. The ship’s owners tried one expert after another, but none of them could figure but how to fix the engine. Then they brought in an old man who had been fixing ships since he was a young. He carried a large bag of tools with him, and when he arrived, he immediately went to work. He inspected the engine very carefully, top to bottom. Two of the ship’s owners were there, watching this man, hoping he would know what to do. After looking things over, the old man reached into his bag and pulled out a small hammer. He gently tapped something. Instantly, the engine lurched into life. He carefully put his hammer away. The engine was fixed! A week later, the owners received a bill from the old man for ten thousand dollars. “What?!” the owners exclaimed. “He hardly did anything!” So they wrote the old man a note saying, “Please send us an itemized bill. The man sent a bill that read: Tapping with a hammer………………….. $ 2.00 Knowing where to tap…………………….. $ 9,998.00 your experience is amazing. 🙏

[@TKFElectronics]

😄😄😄 🙏

[@rishavchakroborty3557]

Sir your shop location???

[@TKFElectronics]

Mumbai, contact no. 9653123582