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Hanns G HG216D flashing power button
i have the above monitor and after downloading about 20 schematics (various viewsonic) i still havnt found an exact match to the power board, 24 and 5 volt lines are present but the monitor just flashes the power led, there is a ticking noise which seems to be coming from the video card, if i disconnect the power cable from the video board then the monitor powers up with a white screen, i intend to recap the power board as soon as i can get to a supplier which is open after the xmas break, i replaced 2 caps in the power supply a 22uf 50v one and a 10uf 50v one because the originals looked burned and on the positive leg of the i am getting a very high dc voltage (150v) any help would be appreciated.
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Hope someone can give me some suggestions on this because i'm at my wits end with it...
I have an Envy 13-BA1565na here with an Intel Core i7 i7-1165G7 CPU (board is a LA-J475P Rev 1.0) which has an intermittent power button issue. The power button is integrated into the keyboard, and I have ruled out the keyboard, BIOS and battery as being the issue.
Basically, on mains power, the power button works fairly well. The first time you come to it after leving it sitting (either on charge or not on charge), it might take 2 or 3 presses of the button, but then the laptop boots...07-12-2024, 03:03 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... -
As the Elitebooks (820, 840 all gens) only show flashing Power LED and flashing CapsLock (continuously) + a very soft "ticking" noise near the DC Jack,
I wonder if re-flashing the BIOS might be of any use here.
As far as I understood, steady flashing either means insufficient power or a CPU/GPU/Motherboard issue. I use the original 65watt power supply.
There are so many threads out there, but most of the solutions involve flashing codes, which I dont have or claim that you MUST use the original power supply, do a hard reset, reseat the RAM, clean the RAM,... -
Hi,
I kindly ask for help with Thinkpad BIOS/ME repair.
Thinkpad W541 board bought from Aliexpress, so I have no service tag nor S/N. It is 1GB version Q1 (K1100 nVidia GPU). BIOS 2.23, EC 1.13, ME 9.1.32.1002.
It worked fine until I tried to remove whitelist.
Steps taken:
- battery out, CMOS coin cell out, laptop disassembled; I kept LAN/USB subboard connected
- i took SPI programmer (CH341A with 3.3V mod) and SOIC clip and did a full backup of all SPI flash chips (SPI1 and SPI2 - BIOS, EC, ME, GbE; SPI3 - video BIOS; SPI4 - Thunderbolt fw) for several... -
Hello,
With the power button connected it either boot loops with the apple logo or no display but the charging meter shows it looping on charging every few seconds.
No corrosion any where!
Tried a replacement power button off ebay and the same.
Very occasionally it will work with the power button connected!
Same results with or without the battery.
Can it be a fault with the Audio board or the mainboard?
The touch Id assembly connects through the Audio board first then to the Mainboard.
Flex...