waakye
Badcaps Veteran
Last Activity: 05-17-2025, 08:29 AM
Joined: 12-26-2018
Location: Ma ville
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Tried and didn't work. -
I have 2015 Macbook Air A166 13 inch
SN: C02SKKWRH3QD
EMC: 2925
Symptoms: It does not turn on and Power supply reads 14.8VDC and 110mA
Thanks in advance...Leave a comment:
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Hi [USER="297381"]focus2k[/USER] , I know it is a very old post but did you manage to solve this problem as I am experiencing the same.
Thanks in advancefocus2kHi [USER="297381"]focus2k[/USER] , I know it is a very old post but did you manage to solve this problem as I am experiencing the same.
Thanks in advanceLeave a comment:
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I swapped the ic and the same ic is getting hot under thermal camera. I measured the inductor resistance. see the attached photo with readings....
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I double check the pin 13 resistance, and it is 0.689M (mega Ohms). I will proceed to order a new ic and report back. Thanks [USER="295753"]mon2[/USER] and [USER="149220"]mcplslg123[/USER]mon2I double check the pin 13 resistance, and it is 0.689M (mega Ohms). I will proceed to order a new ic and report back. Thanks [USER="295753"]mon2[/USER] and [USER="14922...Leave a comment:
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Based on the attached boardview and schematic, the ic that is getting very hot is U8100 which is TPS51225CRUKR
[COLOR=#d35400][B]Link to schematic and boardview[/B][/COLOR] - [url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/schematic-requests-only/3531087-acer-predator-17x-pegatron-viper2-p7rcr-schematic-and-boardview[/url]Based on the attached boardview and schematic, the ic that is getting very hot is U8100 which is TPS51225CRUKR
[COLOR=#d35400][B]Link to schematic and boardview[/B][/COLOR]Leave a comment:
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Thanks to [URL="https://www.badcaps.net/member/443946-al-_-ex"]AL._.EX[/URL], I got the board view and it seems that I was looking at that IC U8100 wrong. below are the resistance values at all pins on U8100 that was boiling hot under thermal camera to ground.
Pin1> 60.9K
Pin2> 9.5k
Pin3>9.9k
Pin4> 4.2k
Pin5> 69.9K
Pin6> 90.5k
Pin7>99.9k
Pin8> 0.8M
Pin9> 0.9M
Pin10> OL
Pin11>0.8M
Pin12> 0.5M
Pin13> 0.5M
Pin14> OL
Pin15>0.8M
Pin16> 0.7M
...Leave a comment:
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yes...Leave a comment:
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The marking on the component is N1H0Z. with the component removed, still shows 0.5 ohms at pin13Leave a comment:
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thanks, [USER="237374"]SMDFlea[/USER]. I requested themSMDFleathanks, [USER="237374"]SMDFlea[/USER]. I requested themLeave a comment:
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Acer Predator 17x .Pegatron Viper2 P7RCR Schematic and Boardview
Hi all,
could someone share the Schematic and Boardview of Acer Predator 17x.
Thank You. -
would be nice if someone can upload the schematic or boardview.Leave a comment:
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Thanks. After injecting 1V in LDO5, the component circled in green was lighting up in my thermal imager. I measured and 2 pins of the 3 pins measured 0.5 ohms. I think i found the short but without the schematic, I do not know what the component value is.
Thanks everyone....Leave a comment:
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Thanks [USER="295753"]mon2[/USER]. How many amps should I use?mon2Thanks [USER="295753"]mon2[/USER]. How many amps should I use?Leave a comment:
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Thanks, [USER="149220"]mcplslg123[/USER] and [USER="295753"]mon2[/USER] . The resistance on LDO3 pin3 of the ic to ground is 22.12k ohm and LDO5 pin13 to ground is 0.5 ohmmcplslg123Thanks, [USER="149220"]mcplslg123[/USER] and [USER="295753"]mon2[/USER] . The resistance on LDO3 pin3 of the ic to ground is 22.12k ohm and LDO5 pin13 to ground is 0.5 ohmmon2Leave a comment:
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Thanks mon2. I will order the part.Leave a comment:
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ACER PREDATOR 17x not turning IC get very hot
Hi all,
I have here an Acer Predator 17x that does not turn on when plug in. When plug in the ic circled in red in image 17x1.jpg get very hot. Could someone please help me with which component that is? The marking on it is 3F=3H 51X.
Thank you.
I will also appreciate if someone has a boardview and schematic.... -
I removed and measured the source to drain of all mosfets circled in the red and they all measure 0.125VDS in diode mode. I guess it means game over?
[ATTACH=JSON]{"alt":"Click image for larger version Name:\timage.png Views:\t0 Size:\t198.0 KB ID:\t3505116","data-align":"none","data-attachmentid":"3505116","data-size":"full","title":"image.png"}[/ATTACH]...Last edited by waakye; 11-11-2024, 02:24 PM.Leave a comment:
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