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Search: Posts Made By: mcplslg123
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 11:00 PM
Replies: 38
Views: 4,836
Posted By mcplslg123
Re: Dell Inspiron 3521 not (+3VS) and (+5VS)

SUSP should be low and SUSP# should be high at 3.3V.
SUSP is very likely generated from SUSp# thru QZ8
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices Yesterday, 10:51 PM
Replies: 2
Views: 55
Posted By mcplslg123
Re: Hp 250 g7

Seems like RTC fault. Check RTCRST# and SRTCRST# .
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 12-05-2022, 10:59 PM
Replies: 5
Views: 109
Posted By mcplslg123
Re: Asus P5440F dead

You replaced the nvme while battery was connected?? Start with measuring resistance on all coils.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 12-05-2022, 10:57 PM
Replies: 6
Views: 356
Posted By mcplslg123
Re: Hp EliteBook 850 G2 shuts down at boot

Why post bios in troubleshooting section?? There is a dedicated subforum for bios.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 12-04-2022, 11:19 PM
Replies: 10
Views: 164
Posted By mcplslg123
Re: HP 15 LA-C701P not turning on

You dont answer the questions properly and completely. You dont have a dc supply also. It'll be difficult to proceed further.

Check the basic requirement of SIO and answer these queries:
01.Is dc...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 12-04-2022, 11:11 PM
Replies: 9
Views: 217
Posted By mcplslg123
Re: Acer 515-54G badly burned Main power -After repair ACDET is pulled to GND when ap

Fully agree with @mon2's observations and perhaps that answers the question.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 12-04-2022, 11:04 PM
Replies: 25
Views: 639
Posted By mcplslg123
Re: LA-F115P +19VB = 13.6v instead of 19v

[email protected]'s suggestion, check whether ACOK is pulled low.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 12-02-2022, 11:07 PM
Replies: 10
Views: 164
Posted By mcplslg123
Re: HP 15 LA-C701P not turning on

Did you measured resistance immediately after power plugged in?? If yes, you may get weird value. Allow caps to discharge for some time and then measure again.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-29-2022, 11:01 PM
Replies: 6
Views: 291
Posted By mcplslg123
Re: Activating graphics on the CPU

Was the laptop booting normally before you removed GPU chip??

I beleive its a case of no display as mb is not posting at all.

Confirm this by plugging a usb keyboard and see numlock light...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-29-2022, 10:55 PM
Replies: 4
Views: 163
Posted By mcplslg123
Re: Dell Inspiron 15 5501 NO SERVICE TAG

Just press continue on this screen and it'll enter bios setup screen. There you can insert service tag.

Press FN+X/ALT+X when you see the first screen. It will get rid of manufacturing mode.
...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-29-2022, 10:52 PM
Replies: 17
Views: 657
Posted By mcplslg123
Re: Toshiba L50-B-16X powering itself on 3s after successful shutdown

Sio fault is very unlikely. I beleive lan chip and wifi card already removed. So suggest to desolder sound and card reader chip and then check again. If the issue persists even after these steps,...
Forum: Schematic Requests ONLY! 11-28-2022, 11:04 PM
Replies: 20
Views: 7,101
Posted By mcplslg123
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-28-2022, 10:57 PM
Replies: 5
Views: 164
Posted By mcplslg123
Re: MacBook Air A1466 820-00165-A no display

Usually its due to corroded/damaged backlit IC on A1466. Try reflowing the IC with a lot of flux if you see corrosion in the area. Else, you need to measure voltages here.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-28-2022, 10:55 PM
Replies: 25
Views: 639
Posted By mcplslg123
Re: LA-F115P +19VB = 13.6v instead of 19v

Nice to know that the unit is working. Try with another dell original known good adapter.
If adapter is still not recognised, you have alikely fault in PS_ID circuit which is very simple to solve....
Forum: BIOS Requests ONLY! 11-28-2022, 12:39 AM
Replies: 2
Views: 107
Posted By mcplslg123
Lenovo nm-d031 onboard ram disabled bios

Hey guys,

I've tried to disbale onboard ram on NM-D031 thru bios editing.

I dont have this board on my table, so cant test it.

I request anyone who is working on this board to try this bios...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-27-2022, 11:08 PM
Replies: 25
Views: 639
Posted By mcplslg123
Re: LA-F115P +19VB = 13.6v instead of 19v

The problem with most of the members here is that they just want a readymade solution to their problem. They dont want to struggle it out. When your efforts are half baked, results will be not on...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-27-2022, 11:02 PM
Replies: 15
Views: 864
Posted By mcplslg123
Re: Asus Zenbook DUO UX481F small water damage and thermal paste

PROCHOT pin has no role in S5 stage and will come into play in S0 stage-so ignore this. Your charging IC measurements are more or less ok. Perhaps fault lies elsewhere.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-27-2022, 02:07 AM
Replies: 6
Views: 361
Posted By mcplslg123
Re: Asus UM425 board UX425IA - selfstart to 6.5W with no picture

Both amd and intel are equally bad in SOC. Every other board comes with bad/shorted SOC.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-27-2022, 02:04 AM
Replies: 12
Views: 268
Posted By mcplslg123
Re: Asus X45U on off repeatly helpp

Does it make sense to probe charging circuit when battery is being charged/discharged perfectly? What rails are coming up during the brief interval when it turns on-should be the focus area.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-27-2022, 02:01 AM
Replies: 15
Views: 864
Posted By mcplslg123
Re: Asus Zenbook DUO UX481F small water damage and thermal paste

The voltage measurement you have given are all correct. Why you have put ? mark on so many pins?? Are they not present?? If by ? mark you mean not present, then you need to check SDA/SCL line. this...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-27-2022, 01:53 AM
Replies: 19
Views: 572
Posted By mcplslg123
Re: MSI GL63 (Board 16P51, Rev 1) Laptop - Boot Problem

If its a gaming board resistance of 0.4 Ohms may not be short on NVVDD line.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-25-2022, 11:04 PM
Replies: 6
Views: 361
Posted By mcplslg123
Re: Asus UM425 board UX425IA - selfstart to 6.5W with no picture

You need to observe the variation precisely, note it down on a paper and then observe carefully is it varying in a pattern(in loop). If yes, damaged amd ryzen for sure. has faced this on many boards.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-24-2022, 10:48 PM
Replies: 4
Views: 212
Posted By mcplslg123
Re: Aspire E1-530 black screen .

All_sys_PWRGOOD present??
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-23-2022, 11:10 PM
Replies: 16
Views: 829
Posted By mcplslg123
Re: Asus Zenbook UX433F I5 battery connector metal clip dropped on MB

S-D resistance of 3M ohms and you consider it as a leak?? Think twice before proceeding with un-necessary steps.

Btw, the mosfet you listed is not suitable as replacement as Pulsed DRian Current...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 11-23-2022, 08:10 AM
Replies: 2
Views: 163
Posted By mcplslg123
Re: BQ735 equivalent

BQ24725 is also likely to work but better to put original 24735. However, you can try with 24725 if its in stock with you. It wont harm for sure as both are pin-pin compatible.
Showing results 1 to 25 of 500

 
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