I have a vizio 42 in. with a perfect picture but no audio. No problem with speakers or bad conection. Don't know were else to go
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Re: vizio tv e420vo No audio
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Re: vizio tv e420vo No audio
You should test the headphone output to see if it is also missing.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: vizio tv e420vo No audio
head phone output don't work either. there is no voltage on the audio output.Comment
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Re: vizio tv e420vo No audio
Your dmm cannot measure the audio outputs. You need to use a scope.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: vizio tv e420vo No audio
Do You have the remote control? Check it is not muted.
And that the mute button is not stuck in. Similarly is there a mute button on the set button board.
Do you get a crackle when when you plug/unplug the speakersPlease upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: vizio tv e420vo No audio
I don't even know what is that. I do have an oscilloscope that i has never use. Can i use that.Comment
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Re: vizio tv e420vo No audio
dmm = Digital Multi Meter.
A scope is an oscilloscope is a scope.
Check the outputs for any signal being present.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: vizio tv e420vo No audio
no signal presentComment
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Re: vizio tv e420vo No audio
Part # of that chip near the speaker connector please.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: vizio tv e420vo No audio
which one, the one that said 220?Attached FilesComment
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Re: vizio tv e420vo No audio
TPA3110LD2 is what I wanted.
http://www.ti.com/general/docs/lit/g...2&fileType=pdf
Audio inputs are on pins 3, 4, 11 and 12. Check each for signal.
Verify 8V to 26V DC at 7, 15, 16, 27, 28 relative to chassis.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: vizio tv e420vo No audio
audio input on pin 3=1.0, 4=1.0, 11=1.0,12=1.0 on pin 7=12v, 15=12.v, 16=12.v, 27=12.v, 28=12.vComment
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Re: vizio tv e420vo No audio
Need to scope those pins on input for audio signal.
Amp is getting good supply I suspect audio process fault elsewhere.
I think C97, C96, C94, C93 will have the audio signals.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: vizio tv e420vo No audio
no I try and there is no signal on c97,c96,c94 or c93.Comment
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Re: vizio tv e420vo No audio
OK, 8 legged chip near the TPS chip, what is part #.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: vizio tv e420vo No audio
this one?Attached FilesComment
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Re: vizio tv e420vo No audio
U50 yes.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: vizio tv e420vo No audio
mc4558lComment
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Re: vizio tv e420vo No audio
OK so as I thought it's a general purpose opamp.
https://cdn.badcaps-static.com/pdfs/...9fd35dadc9.pdf
Pin 1 and pin 7 are outputs of the opamp.
Pins 2, 3, 5 and 6 are inputs. Depending on the configuration two of them may measure a static DC voltage or not.
Pin 8 is positive supply, pin 4 is ground or negative.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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The Problem: This player has a toggle switch to select between Stereo, Mono R, and Mono L. Regardless of the setting it outputs the sound to both the L&R audio jacks. In the Mono R position, the audio output level is normal (from both the L and R audio output jacks), in the Stereo position the audio output is about half the volume, and in Mono L, it's about 3/4 the volume. Something about putting it into Stereo mode is causing the volume to drop significantly and I can't figure it out.
The player processes the audio signal using two different reference frequencies. The "R"... -
Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hello, everyone. A neighbor was throwing this TV away for "not turning on" so I asked for it and they gave it to me for free since Vizio gave them a new TV under warranty.
I'm pretty proficient with electronics in general but this is the first TV I've ever tried to fix. I strongly suspect bad LED lights but figured I'd post some info and see if those of you more experienced with TVs can confirm my suspicion before I move forward. Some photos and measurements below:
The power supply only has two outputs, one output cable going to the main board and the other... -
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Hi.
picked up another TV. This time is a Vizio M65-C1. TV does not turn on. I had repaired another 60 inch vizio , Bad main board.
When power button is pressed, the Power led indicator on the bottom right, turns for a few seconds and then it fades away. No backlight or Vizio logo on screen. Removed back cover and repeated test.
This is the TV This TV is a little different from the Samsung I have worked on. Power supply is on the Left side, Main Bd is on the right side, T-CON , not in the picture is on the bottom. I am assuming that the boards in the middle are the LED...
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