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LENOVO THINKCENTRE M70Q NM-C61 bios problem ,
Since the mini PC that came with an operating system error could not be formatted, I decided to try the bios, I found it from a friend, it gave a writing error the last one, now the machine does not start at all, I think I need to find another 25Q128JV and write it, I think it has protection in its own bios chip, per se. Is anyone coming?
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merhaba, sizden bir konuda yardim istiyorum. Ben Osman Hollandada yasiyorum. Bilgisayar tamircisiyim. Lenovo mec1633 nasil yazilim atiliyor bir bilginiz varmi?
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Re: HP Probook 470 G4 - Power and Charging Problem
charge control chip voltages are attached, it will help, good works ,
[url=https://hizliresim.com/hvrrw5z][/url]Re: HP Probook 470 G4 - Power and Charging Problem
charge control chip voltages are attached, it will help, good works ,
[url=https://hizliresim.com/hvrrw5z][/url]
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Re: Dell Inspiron 15 3537 Compal LA-9982P
The operating voltages of the RAM socket were measured on the Dell 5521 model. might help.
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Re: Samsung NP350V5C laptop wont turn on
Glad you got it working. good works.
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Re: Samsung NP350V5C laptop wont turn on
Is it possible to apply heat with the nortbridge chip liquid soldering paste and BGA machine on the board? and can you read 1.5V RAM_RST voltage on pin 30 of the RAM socket,
[url=https://hizliresim.com/iqrpcxn][/url]Re: Samsung NP350V5C laptop wont turn on
Is it possible to apply heat with the nortbridge chip liquid soldering paste and BGA machine on the board? and can you read 1.5V RAM_RST voltage on pin 30 of the RAM socket,
[url=https://hizliresim.com/iqrpcxn][/url]
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Re: Universal Battery Analyzer tool NLBA1
Yes, you are right. In the faulty battery, the cell must be changed and then the eeprom must be reset. otherwise it will not work again. I thought of resetting the incompatible batteries that were newly bought but not charging.
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Re: Universal Battery Analyzer tool NLBA1
theoretically there is no need for analyzer device. You can reset the battery by accessing the I2C data line via the USB port. since you can do this with remote access. If the battery you bought is not charging, it can be reset while on the laptop with the utility. is not it ?
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Re: Asus x555uj notebook 19v no input.
Probably because the second mosfet is short-circuited, the first mosfet does not open. or there may be a short-circuit in the +B part....
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Re: Lenovo Ideapad 320 not turn on with power botton
you should measure 3v at leg 1 of your keyboard socket. 0V should go down when the power button is pressed. then it will start. Nova button ( recovery ) for the recovery function. IT8586 IO chip needs to be programmed. Of course, you can get it programmatically more expensive. You can solve the pratic by attaching a button to the edge.
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Re: HP250 G3 Battery not charging
my own measurements, voltage and oscilloscope measurements in the diagram are in charge of the battery. ADID completes the circuit over the PU1 circuit. can you check....
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Re: Using a Variac to simulate UPS battery
İnternal rectifier for mains
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Re: Using a Variac to simulate UPS battery
There are 3 12V 9A batteries in the 1000VA ups, I use. Input rectifier circuit failed due to high voltage. i fixed it
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Re: Using a Variac to simulate UPS battery
As long as you don't connect the UPS to the mains at the same time, there is no problem. however be aware of the danger of electric shock. How many volts will you give from the variac? Are you going to use a rectifier (diode)?
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Re: Using a Variac to simulate UPS battery
You can estimate how many 12V 9A UPS batteries can be inside the UPS. When you plug the UPS into a 220V AC electrical outlet, you can measure how many volts it produces for charging. about how many volts is required (6 * 12V for 72V) You should make the variac output DC with diode and capacitor.
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