neg2013

14.048

hace 5 años

Good morning: TV chassis? Did I change the audio amplifier IC?

Oniiel S.

139

hace 5 años

good morning this chassis I do not see the model, the audio ic is good since it amplifies when I touch it with the fingers on its input pins

neg2013

14.048

hace 5 años

Maybe if not, I directly lose my time in those tests, I renew the amplifier IC and leave doubts. But these failures can be causes of EEPROM memory. That is why it is important that you try to identify the chassis number, mention the license plate of the amplifier IC. In some of those looking for the "firmware" of the chassis or by microprocessor the fault can be solved

Oniiel S.

139

hace 5 años

Friend that's the tv chassis, the ic jungle is 8873CSBNG6KJ7 the eeprom is surface mount

neg2013

14.048

hace 5 años

In some of the corners of the plate you should say the chassis number: Notice if it says 40-000 or something similar. It seems to me that it is from that Chinese chassis line

Oniiel S.

139

hace 5 años

Friend I get tired of looking and says nothing in the chassis

neg2013

14.048

hace 5 años

Under and above the plate?

neg2013

14.048

hace 5 años

Well, improving my search, apparently the chassis would be: M123SP, the bad news is that the audio stage is complex, it has to have a signal injector and an audio locator. If I was within reach I would try changing the EEPROM memory logically with what is necessary for the TV to work, another suspect is the IC1001 (Of course if we are talking about the same chassis)

Oniiel S.

139

hace 5 años

Friend I get tired of looking and says nothing in the chassis

neg2013

14.048

hace 5 años

Mention the components involved in the sound stage. Do I try a DVD player to see if the sound is output by A / V?

Oniiel S.

139

hace 5 años

I found the chassis number, it's 40-M123SP-MAKIXG

Oniiel S.

139

hace 5 años

And if I test with DVD and the same is not heard

Oniiel S.

139

hace 5 años

this tv does not use the IC1001

elieser aranguren

17

hace 5 años

friend check the resistor filters and diodes that work with the audio ic if you have audio tracker make sure the audio is coming to the integrated ... ... check well some TVs have anti plot circuit ... if anything in short in that circuit it blocks the audio of the tv ...........

Oniiel S.

139

hace 5 años

I'm ratifying the audio and nothing comes out taking a sample of pins 28 and 29 of the ic jungle

elieser aranguren

17

hace 5 años

friend remove the audio ic and track again to see if the audio is displayed maybe the audio is blocked by a short in the audio ic ...

Oniiel S.

139

hace 5 años

Good morning, the weird thing is that the audio ic amplifies when I play it with my fingers on their respective pins

Oniiel S.

139

hace 5 años

It seems to me that the cause of the fault is the ic jungle

elieser aranguren

17

hace 5 años

friend when you say that it amplifies you .... when you put your finger you hear the normal audio ........ what amplifier the tv uses .......... you already tracked the audio without the amplifier