TDA7294 MUTE - STBY Problem Solved !!

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  • เผยแพร่เมื่อ 27 ส.ค. 2024
  • In this video it is clearly shown that how to disable the mute and the standby functions of the IC TDA7294.
    The video is very clear but still if you find confusion then please do not hesitate to comment below.
    We will answer your every confusion.
    The Complete video tutorial about tda7294 amplifier circuit , PCB diagram along with the gerber file will be uploaded tomorrow.
    Stay connected with auxtics technologies.

ความคิดเห็น • 67

  • @easyamp123
    @easyamp123 4 ปีที่แล้ว +9

    The purpose of the mute/stby function is to eliminate turn on/off clicks/pops which can over stress and damage the chip or other associated components not to mention the loud pop from the speaker when turning on or off. The circuit you have added is in the data sheet as a one switch function to control both stby and mute functions from a single control source and has nothing to do with disabling it. there's also supposed to be two capacitors, one on pin 9 and another on pin 10 of a 10~22u value which are charged from the two different resistor values so that the stby/mute threshold voltages are reached in an order perscribed by ST. The diode is there to speed up turn off of the mute function during shutdown to insure that its threshold is reached prior to stby, by shorting out the 33k mute resistor and discharging the mute capacitor sooner than the stby capacitor. I also assume you have a loud click when powering on the chip as you edited out something just after turning on the chip and when the video began again I could clearly here hum coming from the speaker that was not there before the video was edited, meaning you skipped power on to avoid the embarrassing turn on pop.

    • @Bisdako2013
      @Bisdako2013 3 ปีที่แล้ว +1

      Hi, I believed that u r knowledge about ICs. How about mine TDA2615 w/ mute function at pin2. But after assemble, it doesn't work. Pls help.

    • @easyamp123
      @easyamp123 3 ปีที่แล้ว

      @@Bisdako2013 are you able to post your schematic anywhere?

    • @Bisdako2013
      @Bisdako2013 3 ปีที่แล้ว

      @@easyamp123 you can find it here: www.amplifiercircuits.com/2014/08/2-x-6-w-hi-fi-audio-power-amplifier.html?m=1

    • @Bisdako2013
      @Bisdako2013 3 ปีที่แล้ว

      @@easyamp123 pls note that there is tick sound when you on/off the amp but no sound comes out when you play a driver.

    • @easyamp123
      @easyamp123 3 ปีที่แล้ว

      @@Bisdako2013 tda2615 is a very simple chip. leave pin 2 open, make sure you have at least +12v on pin 7 and -12V on pin 5, for a total 24v on the supply pins. Connect pins 8 and 3 to ground, connect pins 1 and 9 to your two audio channels with capacitors in series to block dc voltage, and speakers to pins 4 and 6. If it doesn't work the chip maybe bad. This chip can work from a single supply as pictured in your link, but try bipolar supply first as single supply is more components and steps. You don't need the capacitors between chip and speakers as pictured with a bipolar supply just connect straight to speakers and other speaker pin direct to ground.

  • @carybaxter274
    @carybaxter274 5 ปีที่แล้ว +16

    The 1N4148 diode is NOT a zener diode; it is a general purpose diode.

    • @samratashok5086
      @samratashok5086 4 ปีที่แล้ว

      Chutiya ziner dayod nahi regular dayode

    • @manusudha4269
      @manusudha4269 ปีที่แล้ว

      1n4148 is a switching diode

  • @aderitosantos1695
    @aderitosantos1695 5 ปีที่แล้ว +2

    in 2000 year i remember only sold direct jumper circuit stand by /mute, don't need diode and resistor. thanks s lots

  • @rajeshagrawal7761
    @rajeshagrawal7761 ปีที่แล้ว +1

    Sir you have not connected + VCC point

  • @souravsaha3580
    @souravsaha3580 6 ปีที่แล้ว +1

    I need gerber files for the following circuit.. Keep doing great

    • @souravsaha3580
      @souravsaha3580 6 ปีที่แล้ว

      Thanks to you if u do so

    • @souravsaha3580
      @souravsaha3580 6 ปีที่แล้ว

      U still haven't shared the gerber file as u told..

    • @souravsaha3580
      @souravsaha3580 6 ปีที่แล้ว

      Plz do so that every can make there's as well as u do

  • @kunalagon
    @kunalagon 5 ปีที่แล้ว +1

    what voltage do you measure between pin 9 and gnd in this circuit ? What is the standby pin voltage when amp is not in standby mode?

  • @flaconsius
    @flaconsius ปีที่แล้ว

    Do you isolate the Integrated Circuit from the Heat Dissipator with something in between or just put heat grease?

  • @ExSkyCyclePilot
    @ExSkyCyclePilot 3 ปีที่แล้ว +1

    You never connected the junction of the 10kΩ and 22kΩ resisters to V3???

  • @scarhole
    @scarhole 6 ปีที่แล้ว

    Nice, was wondering how was gonna get a 5v supplys for a few tda amps. Thank you...

  • @arcyminati30
    @arcyminati30 7 หลายเดือนก่อน

    Sir please suggest me what should I do to solve mute problem in TDA7265 ic.
    Please.

  • @johnsingh302
    @johnsingh302 4 ปีที่แล้ว

    Nice Bro..👍🙏

  • @griffinacoustics
    @griffinacoustics 3 ปีที่แล้ว

    hello bro. with the amended ckt as in datasheet,...did you get any noise while switching on or off the amp??
    i mean the reason why st made mute and standby is to negate the switching on off noise!!
    the same diagram is given is datasheet, but is it for disabling mute/st functions?? ........the datasheet says or describes it as a common command for bothmute and StBy??
    too many que's..appreciate if you could clear this out.

  • @geothomas5684
    @geothomas5684 6 ปีที่แล้ว

    Hello boss did you connect the other end to positive supply....

  • @1ologarden
    @1ologarden 4 ปีที่แล้ว

    you only add components , you don t connect modify circut to the positive voltage right?

  • @SonuKumar-bf8gq
    @SonuKumar-bf8gq 3 ปีที่แล้ว

    Sir mere pass jo bord h 7294 ka usme aawaj nhi aarha h on off karny pr thodi aawaj aati h pop. Ki kya ye mute sndby ho gya h kyonki jo aapke video me batae h wo comments nhi laga h mute sndby wala

  • @vivekkc3061
    @vivekkc3061 2 ปีที่แล้ว

    Sir. Some problem found in subwoofer board that, when ifswitch on to circuit subwoofer amplifier work for fewseconds after then booom sound comes.if any this stand by problem or not.

  • @DhanjitMr
    @DhanjitMr 6 ปีที่แล้ว +1

    transforma power supply rating how much bro

  • @shadowgamerz7838
    @shadowgamerz7838 ปีที่แล้ว

    Dear bro please make video on standby mute of tda8920 class d stereo amplifier. How to release the stand by & mute

  • @dj31k
    @dj31k 3 ปีที่แล้ว

    This happen for fake chips you may need to use low values for the resistor to deactivate mute. What is the initial values on your PCB?

  • @koushikbhattacharyya6541
    @koushikbhattacharyya6541 5 ปีที่แล้ว

    Are box and poly capacitors are same. In audio board.

  • @Harman.2626
    @Harman.2626 4 ปีที่แล้ว

    Bro after this can we remove this circuit or not

  • @technicaldunya1095
    @technicaldunya1095 5 ปีที่แล้ว

    if you not use zenir and 33k Ω then what happed?. i see an other cct. thay not use this

  • @AnilAdvani444
    @AnilAdvani444 4 ปีที่แล้ว

    Hi. I have a problem with a Audio Research LS2 which remains in mute and only sometimes will come out of mute on its own. Any help would be great!

    • @techabhishek7327
      @techabhishek7327 3 ปีที่แล้ว +1

      check your voltage at pins are not stable

  • @technicalboy8097
    @technicalboy8097 4 ปีที่แล้ว

    Sir kea apmujhy tda7294 and some rasistor and capacitor tcs karwa sakty hain please replay me

  • @farijalnourakbar2094
    @farijalnourakbar2094 ปีที่แล้ว

    what about ic tda7297 sir, if ST-BY and MUTE, what circuits are there sir, please make a schematic sir

  • @hamzaejaz502
    @hamzaejaz502 5 ปีที่แล้ว

    I Want To Purchase This TDA7294 Audio Circuit Board. How many price?

  • @pijushgupta1988
    @pijushgupta1988 6 ปีที่แล้ว

    make a bridge of two 7294 with low-pass filter. Nice video.

  • @koushikdas2437
    @koushikdas2437 3 ปีที่แล้ว

    This circuit to use in tda 7269 a ic

  • @SS-jl9io
    @SS-jl9io 6 ปีที่แล้ว

    Again first comment bro

    • @SS-jl9io
      @SS-jl9io 6 ปีที่แล้ว

      auxtics technologies can you please provide me tda7294 ic's mono circuit diagram??

    • @SS-jl9io
      @SS-jl9io 6 ปีที่แล้ว

      auxtics technologies thanks

  • @benardngesa1982
    @benardngesa1982 3 ปีที่แล้ว

    What is the value of the zenner diode please

  • @hadiprayitno8632
    @hadiprayitno8632 4 ปีที่แล้ว

    what a pin out tda 7295 the same tda 7294 and +B not conected in your video sir thanks,best regard

  • @farijalnourakbar2094
    @farijalnourakbar2094 ปีที่แล้ว

    bagaimana dengan ic tda7297 pak, kalau ST-BY dan MUTE, ada rangkaian apa saja pak, tolong dibuatkan skemanya pak

  • @sanjay8774
    @sanjay8774 2 ปีที่แล้ว

    +v not conected

  • @manimanipal1818
    @manimanipal1818 5 ปีที่แล้ว

    Sir tda7379 only one channel working I made circuit perfect for every tda737 seris same problem please give me solution

  • @souravsaha3580
    @souravsaha3580 6 ปีที่แล้ว

    Where is the circuit making video

  • @shriramdjsound7181
    @shriramdjsound7181 5 ปีที่แล้ว

    Sir ji is bord ka PCB layout Dona plz

  • @farrukhshahzad1765
    @farrukhshahzad1765 4 ปีที่แล้ว

    same woh hi design wali ic he jo mene use ki, fake and repented

  • @anilraj4428
    @anilraj4428 6 ปีที่แล้ว

    5 volt + Nahi diye