The set could be working fine for hours but eventually it'll make a loud alarm type noise and you have to shut it off then turn it back on to get rid of the noise. This is the second vizio that I've seen does this. On the other vizio I put a small computer type fan on the main board and that did away with the noise. On this one it still happens though. I'm wondering if any of u guys have had the same problem? Thanx.
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lenovo t14 i7 10 gen : I press the power button and there is a loud fan noise for about 3 seconds and power light is on. Nothing on display screen. i have removed the battery and bios battery still the same. i have put yesterday on update and charger ,i have leave and back and see this problem. Any One Can help Me ?09-27-2024, 02:40 AM -
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 Badcaps Members,
I'm experiencing an issue with my Lenovo ThinkPad E15 Gen 2, and I'm hoping someone here might have some insight. The laptop charges to full capacity, but as soon as I power it up, I get a loud sound, and there's no POST.
I disconnected the battery and connected a USB meter, which shows 20V 0.23A when the sound occurs. I've already tried changing the screen, but it didn't resolve the issue.
When I use Lenovo PC Diagnostics App I get results as 01000
Here are the details:- Model: Lenovo ThinkPad E15 Gen 2
- Board Numbe
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Hi all,
I am working on a sound processor, it tends to overheat so I fitted a fan inside. The fan is connected to the +15V of the PSU via a DC-DC converter based on the LM2596 to reduce the voltage to around 10.5V.
Unfortunately the analogue circuitry is picking up the noise from the fan in two ways:
1. The fan is close to the analogue section, the motor itself gets into the outputs so I'll have to move it somewhere else
2. Even with the fan running outside of the case, there is still some noise which is clearly going back to the processor via power line.... -
Surprisingly enough, this receiver doesn't have the DSP chip issue. The HDMI board does not get hot, and sound over HDMI works fine.
Regardless of the input, the right channel has noise that is clearly noticeable even on average volume level. The only cases when there's no noise is when VCR input is selected (some tracks on the board are damaged, maybe that's why), or if HDMI input is selected but nothing plugged into it. In all other cases, even when no input is connected I still have the noise.
There's some logic behind it. As soon as I select an input I get only left...04-23-2025, 10:09 PM