My Vizio VX32L HDTV10A is no longer turning on. The logo is amber and power switch does nothing. I have the cover off and verified that the 5 VDC is present. The PWR switch does not make it to the PSON on J1 Pin 1. Anyone know the path of this signal or what the common failure part is? I have also verified that 3.3 VDC is present.
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Re: Vizio VX32L HDTV10A not turning on
Search for vw32l service manual. Follow the DC-DC regulator diagnosis path in the manual. Most people have problems with U33, but when U33 goes bad it will still change the light from amber to white when you press the power button. Perhaps check the fuses on the button board, as well as any regulators on the button board, or around where it connects to the main board.Fixed so far 12 lcd's , 1 plasmas, 5 monitors, 0 dlp's (plan to keep the dlps at 0). and 3 atx power supplies, and 2 motherboards.
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vizio e650i-a2 (LWJAOZBP Serial) led backlight flashes then turns off, has video (via flashlight) and audio.
panel: au optronics T650HVN05.4
72 led total on 12 strips, 6 led per strip wired in three groups of 24 (led driver board has three anode and three cathode pins)
link to datasheet: https://datasheetspdf.com/pdf-file/8.../T650HVN05.4/1
Vizio 56.04219.641G (liteon PA-3231-01WN-LF) Power Supply Unit
https://www.shopjimmy.com/vizio-56-0...-power-supply/
Vizio 55.75J01.001G (91.75J10.004G) Main Board... -
Hi, I know these TVs are common to have problems like this, but unfortunately I was not able to find repair guide for this specific model or for something with this kind of power board.
The thing is this doesn't have the 5vsb pin which is used to determine from which board the issue comes.
Everything in power and main board was inspected without any apparent problems, but haven't measured everything.
The voltages from Power to Main board are as follows:
NC = 0
A = 0
BL_on/off = (Some millivolts, probably considered 0)... -
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... -
Bug looks like hardware so thought I posted it here. Exact same behavior on 2 different model 4K Vizio TVs running their SmartCast smarttv software. After launching youtube app, press vizio button on remote to return to the smarttv menu, once in awhile, a column of bad pixels will show for few seconds on the left hand side.
It seems the vizio software is reinitializing hardware when returning to the smarttv menu. In general, SmartCast software isn't very good. Also will randomly (relatively infrequent) get no network connection when on wifi and require reboot.... -
I replaced the backlights all good. Two months later set was dead, had a shorted D9100, replaced all good again.
Now months later set powers up,backlights light ok,no picture. 12volts missing from fuse on tcon. 12VA on power
supply is 19 volts. Changed D9100 again, same, 12 volts measures 19. Am I looking at a power supply or mainboard
issue. Set will power up with remote but not power off....
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