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Blown audio output no numbers to be seen.

I have a Chrysler radio Model 5269414 with blown audio output ic with part number not visable location is U9. I need the part number for the IC. Thanks Russell

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Posted on Jan 02, 2017

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SOURCE: sony color TV model kv-c29 11d blown power supply ic and transist

There should be circuit designations printed on the PC board. Without those, there are too many possibilities to give you anything useful. Can you provide those please?


Posted on Jan 21, 2009

  • 227 Answers

SOURCE: looking for a blown IC part number AN34001A

JVC part link....

Posted on Mar 05, 2009

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SOURCE: I have a behringer pmp 880s powered mixer it has a

Please note that there are many chips in the Behringer devices and we can't guess what the chip might be since we have no idea where it is in the unit.

HINT: There are MANY circuits in common in the lines of music equipment. See if the circuit board has a part number as well. The board may be in common with other PMP boards.

Also note the chip location, such as IC12 and also tell the type, Thru hole or surface mount, and the number of leads and ANY number on the chip.

Posted on May 25, 2010

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SOURCE: Dear Sir: I have a Toshiba 27 tv vcr combo tv.


Here IC specsheet:LA78041

Also replace the 100uf/35 volt cap on pin three of the IC and the two zener diodes connected to the IC. That is part of standard repair. If you don't replace the whole lot the IC may blow again.

Here the IC for sale. Cost is less than $5.

Posted on Sep 08, 2010

  • 2318 Answers


This IC is available from this link or from electronica but is a bit more expensive.

Posted on Oct 01, 2010

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i assume the power comes on and there is no audio. more than likely the audio output ic is blown or it may just have bad connections. the ic is usually the largest component on the circuit board mounted to a heat sink. you can write down the number and try to get one online or at anelectronics wholesaler. also look to see if any capacitors are swollen or blown. if so try changing these first but if that doesnt work shut the unit off right away or they will blow again.

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In most cases it can be traced to the audio output ic as the problem, because part of the B+ is fed back in the radio. There is a remote chance a fuse has blown located near the ic.

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You haven't mentioned about the picture at all. Assuming that, picture is ok I suggests. Ok
If the picture is Ok and there is no sound output from the speaker, your TV has either speaker problem or output Ic problem. To assure where is the fault, you just place your ear very near to the TVs speaker side, and switch on the TV. If you hear a "thumb" sound or a "HUM" sound, your TVs output ic has blown out. If you did not hear any sound at all, the speaker of your TV has gone.
If you have a little knowledge in electronics, you can do it by yoursef. This is a minor mistake. Opwen the back cover of your TV, locate and note the type and number of the audio output Ic, go for that and get it replaced; if the fault is related to Ic. You can do the speaker replacement also by this way. I have given this much advice, assuming that picture in your TV is Ok. Otherwise the fault may be different.

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1 Answer

Sony color TV model kv-c29 11d blown power supply ic and transist

There should be circuit designations printed on the PC board. Without those, there are too many possibilities to give you anything useful. Can you provide those please?


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No receive cobra 29 ltd classic

Hi and welcome to FixYa,

Initially, pls confirm that there is modulation (transmit audio). The reason I asked is if IC4 (TA7222P) is blown, then the radio would have no audio amplifier which would explain no receive audio. Additionally, the final and pre-final (TR15 & 15) gets is modulated TX+12 through D8 from T1 which in turn is the output of IC4 through C48.

Perhaps a schematic diagram may be of further help.

Good luck and Thank you for using FixYa. Happy Holidays.

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Possible that output IC may be blown when set was overdriven. The 'Protect" error usually appears when the audio output IC is defective.

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Have you tried to check the audio as it is coming off of the detector right before it enters the first audio amplifier? you can check this with an oscilloscope and then trace the signal through the stages of amplification the signal should get bigger. I think that you may have blown the final audio output amp. and what you are gearing is pre-driver audio through a leakage path. This is just a hypothesis, but I have seen this happen before.

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