Hi, friends, I need help with my HomePod 2. It won't turn on after the update! There's no response when I connect to the network 
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I took the device apart. The power supply is working properly and delivers 48 volts as expected. No short circuits were detected on the motherboard. Perhaps a firmware error occurred during the update? How do I connect it to my MacBook to see if it's in recovery mode?! Does anyone have any advice on what the problem might be and where can I get a cable like this? -
The cause of the malfunction is a defective flexible cable.
https://youtube.com/shorts/xZlhpyaU2...zuQ4jlyLrDUTIO
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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... -
Hi all!
I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅
I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
https://www.badcaps.net/forum/troubl...-hardware-devi... -
Hello, I have a SYMSI70 gas heater board, which has issues with its primary side power supply, controlled by TOP247Y chip.
When I replace a TOP247Y it explode in 1 second. I have desoldered transformer and measured a winding ratio, so transformer looks like OK.
Transformer:
|Info| Primary | Aux | AB | CD|
|-|----------|----------|-|-|
|Ratio|1|25|40|12|
|Voltage AC|230V|9.2V|5.8V|19V|
|Voltage DC (*1.41)|230V|13V|8.1V|27V|
I have disabled a undervoltage protection of TOP247Y, disconnected secondaries and tried to power it up... -
I got a qn65ls03ta from someone who stated shows no power at all. They said they bought a fully new tv (same one) and tested the one connect box from the old one onto the new one and said it worked.
I have no reason not to believe them, so I crack open the TV and test for voltages on the main board. There are none. I can't get any voltage at all. (Power comes from one connect to Main board then sends power to additional power board for backlights I believe)
While doing some digging I found the connection to the one connect cable ON the main board seems to be missing small... -
I have wanting to do this project for quite sometime now and I finally found a switching power supply that will work on this desoldering gun station ZD-915 that the original switching power supply took a shit and just was not worth trying to fix it because this switching power is not quite big enough to handle the heater element and the vacuum pump
One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy...
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