Polaroid TLX-04240b Has picture, no sound

[mcross]

Have a Polaroid TLX-04240b Has picture, no sound. Headphones jack works. Common in other models. I can not seem to find the resistor on this model
Help!!
Mike

[ReeceyBurger123]

Re: Polaroid TLX-04240b Has picture, no sound

Sure its the resistor I have imaged here, check it in circuit:

[mcross]

Re: Polaroid TLX-04240b Has picture, no sound

Sure its the resistor I have imaged here, check it in circuit:

The 220 is good, other ideas, also can not find the service manual.
Mike

[budm]

Re: Polaroid TLX-04240b Has picture, no sound

Are you getting any DCV on that Class D amplifiers IC (32-pin IC) next to the two output filter inductors?
The internal speaker ON/OFF in the on screen user menu is ON?

[mcross]

Re: Polaroid TLX-04240b Has picture, no sound

yes to DCV at the is, and yes spk on in menu

[dick_barton]

Re: Polaroid TLX-04240b Has picture, no sound

Same problem here with a possible fix

http://www.techsupportforum.com/foru...nd-523713.html

[budm]

Re: Polaroid TLX-04240b Has picture, no sound

if the dip switches setting did not fix the problem, then the next will be getting the P/N of that IC and see the circuit application notes which will be enough to guide you through the troubleshooting in that section, most manufacturers will just copy the application circuits and use them in the products. Do you have scope?
BTW, did someone else work on this TV before you flipped the dip switches?
Thanks for the info dick_barton.

[mcross]

Re: Polaroid TLX-04240b Has picture, no sound

Must have because i did not flip the dips, no scope, Will get the is #

[budm]

Re: Polaroid TLX-04240b Has picture, no sound

So doing what is suggested in that link did not help to get the sound back?

[mcross]

Re: Polaroid TLX-04240b Has picture, no sound

TDA8932t is the is

[mcross]

Re: Polaroid TLX-04240b Has picture, no sound

No sound did not come back

[vinceroger69]

Re: Polaroid TLX-04240b Has picture, no sound

this may help

[dick_barton]

Re: Polaroid TLX-04240b Has picture, no sound

May be a little silly to ask but are the speakers turned off in the On Screen Menu?

[johnboy1313]

Re: Polaroid TLX-04240b Has picture, no sound

may be a little silly to ask but are the speakers turned off in the on screen menu?

+1

[budm]

Re: Polaroid TLX-04240b Has picture, no sound

Spec sheet.
You may want to check the MUTE control line to see if it is set to MUTE.

[mcross]

Re: Polaroid TLX-04240b Has picture, no sound

+1

Yes Spk's on

[mcross]

Re: Polaroid TLX-04240b Has picture, no sound

I am working on this tv, loading win 8 on a pc, and a digitizer (iphone) and just finished a charge port replace on a S5. So if I do not get right back , I will asap. Thank you all for the help
Mike

[mcross]

Re: Polaroid TLX-04240b Has picture, no sound

Looked better at the IC (TDA8932t) Found cold solder joint on 3 pins, gave them all a new coat,----HAVE SOUND!!!
Thanks all
Mike

[budm]

Re: Polaroid TLX-04240b Has picture, no sound

Great!

[dick_barton]

Re: Polaroid TLX-04240b Has picture, no sound

Well done. Worth the time and effort.