Re: HP Probook 450 G5 DA0X8CMB6E0 Rev. E short circuit
Hi,
i have news, as anybody a idee. At the Beginning Power Supply Mosfet i have the 19V present. But not on every Mosfet 19V. I have Mosfet that have only 9V where i lost around the 10V?
I attached a Picture. Has anybody a idee? The Mainboard always has 1A usage, no matter to the Voltage, always 1A ?
The 4 Capacitors in the Picture, has short to Ground (0Ohm every side to ground). 0Ohm between the pads???
Thanks....
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Re: HP Probook 450 G5 DA0X8CMB6E0 Rev. E short circuit
Hi Mon,
thanks for the feedback. Here the picture of the power supply being attached. I had a old DC IN Connector, i should not be a problem or?
I have on any PIN auf the BIOS Chip a Short to Ground. When i connect a USB Programmer the Programmer reboot and lost Power.
Where to i find the +Vin Test Point?
After the Mainboard where 2 Minute on Power with around 8V from the Power supply, no i looks like you write. Power on -> detecting the short condition -> Power...
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HP Probook 450 G5 DA0X8CMB6E0 Rev. E short circuit
Hello, I have a problem with the board.
The mainboard switches itself on again as soon as the power is switched on. The power button LED lights up. The CPU gets warm / hot. But there is a short circuit on the board, almost every PIN is connected to ground. If a laboratory power supply is used with a few volts (2-8V), approx. 1A current is always drawn and the mainboard whistles. Since the CPU is always hot, I thought that this vl has a short circuit, how can I measure it?
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Re: Need Help BIOS DAG7DCMB8D0 HP Pavilion 13-an1900ng
hi, on Board there is no CMOS battery. I have never seen before. In the Maintenance guide theres is no Info about the battery. I repair PC over 20 years. Ist there a new methode about the battery. There is no cable that the battery is externaly. Any Ideas. With google search (DAG7DCMB8D0) you found a picture of front and back. therse is no battery or connector for that.
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Re: Need Help BIOS DAG7DCMB8D0 HP Pavilion 13-an1900ng
Hi,
i flashes now the ROM File from the Backup. After a Remove the SSD the Notebooks always Boot correct. When the SSD (nvme) is installed, the Notebook only show a Blank screen any ideas?
Thanks.
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HP Pavilion x360 15 / Board Corvo_15_MB 18741-1 Repair Help
Hi,
i have a HP Pavilion x360 15 with Board Corvo_15_MB 18741-1 with water damaged. The Laptop Power On, Power LED ligth but no funktion. On the Board the PC5210 and CHIP V3285335F are borned out. As anybuddy a Idee to found out what is this? Schematic of the Board?
Thanks....
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Re: Need Help BIOS DAG7DCMB8D0 HP Pavilion 13-an1900ng
Hi, i have the file (086B5.bin) extracted from the HP site and flashed this. After the flashed the Notebook show only Power LED, and not Screen. Any ideas I used the AS Programmer. Chip was detected.
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Need Help BIOS DAG7DCMB8D0 HP Pavilion 13-an1900ng
Hello,
I have an HP Pavilion Notebook 13-an1900ng with the mainboard DAG7DCMB8D0.
The notebook had a CMOS checksum 502 error when booting.
I have created a BIOS backup with CH341A. Then the original BIOS (sp135626.exe) downloaded from the HP, extracted the bin file flashes the Chip (GD25Q128).
After the flash, the Notebook show only Power LED light, no Screen.
Can someone help me here. Can the BIN file be imported just like that or does it have to be adjusted beforehand?
Original BIOS File attached.
T...
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