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THERE IS DC OUT COMMING FROM SPEAKER OUTPUT WHAT IC CAN BE SUBTITUTE FOR IC 70413080

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Posted on Jan 02, 2017

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SOURCE: NEED GENERIC # FOR 70413080 I.C. in

This is a link to a parts supplier that lists the 70413080 I.C. Scroll down the
page to locate the number ~ 2/3 down the page.
http://www.vibroworld.com/parts/tech17.html

Posted on Nov 18, 2009

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SOURCE: ic 70413080 doesn't work and

This is a Peavey part number for an LM3080N or a CA3080 or generic replacement NTE996. Check in you local area for these parts.

Dan

Posted on Apr 20, 2011

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No sound on radio or CD,speakers working nice but dont make any sound


Possible damage to radio output ic if no audio. Output failure is usually due to shorted speaker lines either together or to ground. You can check your speaker lines at head unit and they should have approx 6v dc on +&- lines each channel. If this is not present then most likely is
output failure, if ok then is internal fault possibly with vol control ic or
power supply.

Mar 16, 2014 | Clarion Car Audio & Video

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No sound, video OK in TVs


PICTURE IS OK AND THERE IS NO SOUND IN tvS

There are some occations arise when picture in a TV will be OK while absensce of sound.
Picure is OK, means that, functions from tuner upto video output, including power supply are OK. In most cases absence of sound may be with the fault to its speaker or speakers. In some sets there will be two speakers connected in series connection, and its sound output will be MONO. In these type of sets, if the connction is done as above, even one speaker has gone out [that is its voice coil or its connection gets opened, both speakers will not work]. In this case, you have to check each speakers individually for coil conitnuity, and the faulty one must be replaced. If there is no fault to the audio amplifier section of that TV, the problem will be solved with this.
In stereo sound system TVs, two of its speakers will have individual amplifiers, some may have both amps sections are integrated in one IC or two ICs are used seperately for each channel. In this type of sets, absenece of sound can be either to the fault of the failure audio output IC or its supply line voltage. In most cases, you can make sure the reason with a simple test without opening the set. Place your ear very close to its speaker side, and switch ON the set by its front panel power control switch. if a "Thumb' sound is heard form the speaker, you can confirm that the speaker is OK, and the power supply is comming to the output IC. If so, check the output IC terminal solderings for some loose contact. During long run, this may happen because, the Audio Output IC will heat up during working, and repeated heating and cooling may make loose soldering at its terminals; or a loose fixation of the IC to its metal heatsink, will relult overheating the IC. In most cases this is found a common fault. To rectify this, you have to open your TV, and pull out the audio output card, in some sets, this audio output section swill be built on the main board itself, place it upside down, and resolder all the terminals of the output IC by applying a little more solder, without making any solder bridges in between terminals of the IC. If this also doesn't help you, check the input voltage of the audio output IC. In most sets there will be a fuse resistor used as protection, will be in 0.2Ohms in value, and will get opend thus disconnect the supply; if IC has some fault. This will happen when the output IC itsef get shorted. If you see this resistor opend, check the output ICs positive supply rail terminal to the negative terminals' resistance with the help of an Ohm meter, if foud very low, say between 0 Ohms and 5 Ohms, make sure that the IC has got damaged. Here you have to repalce the IC and this fuse resistor too.
When replacing the audio output IC, make sure to apply thermal conductive paste, in between IC and it heat sink. This conductive paste can be bought from most of the electronic spare part selling shops at your town.
There is an other possibility too, is, the audio filtering stage in the video IF stage get faulty. To detect this, you have to go to the VIF section, and it is a skilled job, and the worker must have sound knoledge in electronics, and service experience.

on Mar 21, 2011 | Televison & Video

1 Answer

Sony lbt-xb55av is no sound comming


The problem is in the audio output ic and will need to be replaced, check the speaker wires for shorts, if okay! the above statement will need to be followed to get it working.

Mar 24, 2012 | Audio Players & Recorders

1 Answer

There is no sound comming out of speakers


Try checking your speakers and speaker wires for any shorts or grounds. If they all check out good, you may have a bad output ic.

Jun 13, 2011 | Kenwood KDC-138 FM / AM Receiver

1 Answer

Ic 70413080 doesn't work and i can not find any spare part which ic can replace this one


This is a Peavey part number for an LM3080N or a CA3080 or generic replacement NTE996. Check in you local area for these parts.

Dan

Apr 17, 2011 | Peavey CSĀ® 2000 Amplifier

2 Answers

Pioneer vsx_D710S whatever can be the input source,the flag " poweroff" apears and switch off the system. Seems to have no time rules, shut down frequency connected with hazard ...... No...


I'm not sure what kind of an answer you are looking for. If you are not qualified to do some soldering rework and ready to spend some money (could be as much as 50$) for parts, you better look for a professional service that in most cases will cost as mush (or more) as your receiver.

If you are still reading then here you are. This is a common symptom of a blown hybrid amplifier IC caused by shorting speaker output while it's powered on. There are two protection circuits for amplifier output, Overload and DC output. In your case, most probably, DC output protection is the one that shuts down amplifier to prevent further damage. Find schematics (service manual). To confirm this, look for amplifier inputs connector, measure DC DET. signal, normally it should be around +4.85V. If right after power up it goes down to almost 0V, then it is for sure a blown output on a Hybrid IC. Check whether receiver shuts down with that cable unplugged. If not than get ready to do some rework.

There are two big Hybrid amplifier ICs, one that outputs two channels (usually front left and front right) and 3 channels (for the rest). One of the outputs (if not more) one one of them (if not both) is blown. In most of the 5.1 Pioneer receivers 2 channel IC is PAC010A and 3 channel one is PAC011A. If you want to get original parts and will find those for less then 40$ each you are lucky. There are however cheaper replacements from SANYO, those you can find for around 10-15$.

Find schematics, unsolder resistors one by one that connect AMP outputs to DC detection circuit on each IC and check which one is blown. There are 2 for 2 channel one and 3 for the other. Usually if one output is blown all others on the same IC are blown.

There could be a chance that only one channel on IC is blown, if you want to fix it you still need to replace whole IC. Also, instead of spending on new IC you may want to sacrifice one working channel (center for example) to output the blown one (so you'll get 4.1 :) ).

Nov 11, 2010 | Pioneer VSX-D710S Receiver

1 Answer

Power seems to cut in and out - it 'clicks'and a second red light comes on - most of the time just one red light is on. Thanks


The click you hear is most likely the speaker protection circuit relay due to the protection circuits being triggered. In the event of a dc voltage appearing across the speakers the protection circuit isolates the the speaker terminals from the output stage.
Dry joints on the relay is not uncommon and causes false triggering. Check both pos' and neg' supplies are present at the output transistors / ic. Connect a dc volt meter across the speaker output terminals if a voltage of more than a few millivolts appears just before relay clicks then check the ouput stage for dry joints, leaky transistors and resistors having increased in value.

Mar 05, 2010 | Audio Players & Recorders

2 Answers

TV has low sound output through right speaker of stereo receiver


try the balence. if no joy. try the cable if you have a meter also see if the cable and see if the cable has been reversed???????

Mar 27, 2009 | Samsung HL-S5087W DLP TV

1 Answer

Possibly bad audio amp ic


You'll need a voltmeter. Check for the absence of DC voltage at the amp ic's outpit pins under no signal conditions. Note, you need to check the output pins of the ic, not at the speaker terminals, as a relay would lift the speakers off circuit in the event of a DC potential being present at outputs, to protect speakers.
Jango

Mar 16, 2008 | JVC HX-D7 Shelf System

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