Forum: Troubleshooting Laptops, Tablets, and Mobile Devices
08-12-2022, 10:51 PM
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Replies: 2
Views: 72
Re: Cedar 13269-1 7 beep code
Give voltage on all coils. What is the reading on dc supply(after turning on) in these 2 scenario's
01.With Ram
02.Without Ram
Known good clean me bios flashed??
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Forum: Troubleshooting Laptops, Tablets, and Mobile Devices
08-09-2022, 01:15 AM
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Replies: 8
Views: 1,047
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Forum: Troubleshooting Laptops, Tablets, and Mobile Devices
08-09-2022, 12:58 AM
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Replies: 24
Views: 4,794
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Forum: BIOS Requests ONLY!
08-09-2022, 12:47 AM
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Replies: 3
Views: 113
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Forum: Troubleshooting Laptops, Tablets, and Mobile Devices
08-06-2022, 11:33 PM
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Replies: 9
Views: 188
Re: Dell la-9832p no charging
The reading seems incorrect to me. How ACN/ACP voltage can differ by such huge margin. ACDRV at 28V is too high. I think you need to replace the battery of your DMM.
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Forum: Troubleshooting Laptops, Tablets, and Mobile Devices
08-04-2022, 11:14 PM
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Replies: 32
Views: 1,128
Re: ASUS ViviBook X512F no power
You should replace the 2nd mosfet first before troubleshooting further. Probing further without replacing it may be futile and pure waste of time.
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Forum: Troubleshooting Laptops, Tablets, and Mobile Devices
08-04-2022, 11:08 PM
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Replies: 2
Views: 79
Re: hp probook 430 g4 DA0X81MB6E0 rev:E
No one can give advise based on symptoms only. You need to give measurements, details the steps you have taken etc etc. A good detailed description with measurements will always get attention and...
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Forum: Troubleshooting Laptops, Tablets, and Mobile Devices
08-04-2022, 10:59 PM
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Replies: 22
Views: 559
Re: LA-C501P No ACDRV??
SDA/SCL present?? What is the voltage on ILIM?? DK1-voltage on both sides?? Try removing DK1 and see if ACOK appears on charging IC.
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Forum: Troubleshooting Laptops, Tablets, and Mobile Devices
08-04-2022, 02:16 AM
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Replies: 1
Views: 96
Re: Toshiba L50-A
It is the heat applied during mosfet soldering/desoldering thats doing the trick. Perhaps mosfet are fine. Is the charging IC located very near to these 2 mosfets?? If the location is not too near,...
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Forum: Troubleshooting Laptops, Tablets, and Mobile Devices
08-03-2022, 01:10 AM
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Replies: 32
Views: 1,128
Re: ASUS ViviBook X512F no power
The charging IC measurement seems fine. There should be voltage on the source of 2nd fet as you are aware. Confirm it by measuring on CLR?? There should not be any voltage here in your case. Is the...
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Forum: Troubleshooting Laptops, Tablets, and Mobile Devices
07-31-2022, 11:01 PM
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Replies: 23
Views: 389
Re: Asus GA401QM dead, no lights.
Do you have a dc supply?? It seems to me the mb is indeed getting turned on but partially as you do have 1.2V rail. VCCSA present??
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Forum: Troubleshooting Laptops, Tablets, and Mobile Devices
07-31-2022, 10:54 PM
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Replies: 32
Views: 1,128
Re: ASUS ViviBook X512F no power
Replace the 2nd mosfet, dont replace the charging IC now. Power up, what is the status?? CLR stands for Current Sensing Resistor usually located just after the 2nd dc-in mosfet.
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Forum: Troubleshooting Laptops, Tablets, and Mobile Devices
07-30-2022, 11:41 PM
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Replies: 24
Views: 401
Re: Dell N4010 Does not power on.
Though CRO is needed, but in absence of the tool you can measure on pads of crystal with Dmm for voltage. The two pads should differ by 0.2-0.3V between them. This will give you a rough idea whether...
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