By Cleaning, I guess I should have worded it differently;
I was removing the old solder before re tinning the pads; I cleaned the oxidisation after hot air removal of the chip; I re fluxed, then used wick, didn’t move around etc etc, didn’t try and lift the iron then the wick none of it; I’ll make a point of adding more tin lead first in future, saves the risk of extra damage I guess;
Ive obviously done something wrong, one of those things that will mess with me until I work it out lol; Im still going to partly blame the chip; it has failed after all 🤣🤣...
ImpossibleRepairs
Member
Last Activity: 06-03-2024, 07:45 PM
Joined: 02-20-2024
Location: Sydney N.S.W
-
Im going to take a guess that its a through hole cap;
I add a small amount of flux at the base of each leg of the cap from the back of the board (not so much the leg); hold the tip of your iron on one leg of the capacitor at a time until the solder melts enough to push that leg through, swapping legs working the cap until its free;
A good iron makes the world of difference;
Other people on this forum will likely have better methods, but this works for me 👍Leave a comment:
-
Ok yep so before I clean on a Lead free board, use lesd solder first like as if I was doing a through hole removal and clean; Makes sence;
The IC is a QFN series might have to try and use that donor board; I could be wrong; I like that method for J leg types thats tops;...Leave a comment:
-
Pad repair
Howdy good peoples;
looking for some advice on Pad repairs, want ti expand my skills
Working on a HP board that went for a swim; There was a short in what appeared to be the Data IC (there was corrupted data that we recovered) ;
First picture is the donor Board, clean removal;
Second picture is board im working on; As soon as I started prepping the pads to re work the IC, the damage started;
As a side note, Im using good equipment M series Thermal tronics iron with a 1.6m tip; Good quality locally produced flux, good quality... -
Bumping;
I have found a few very similar 2 channel pots that Im going to try and modify 🤞🏻...Leave a comment:
-
trying to identify 10k Slide Potentiometer
Hi Good peoples;
trying to identify manufacturers of this slide Pot from a Flight controller;
there is also an S W or M S printed underneath;
Sorry I couldn't get a better picture;
please and thanks as always -
Turtle Beach Velocity one flight universal control system
Hi Good peoples;
Been working on a turtle beach Velocity one flight controller; The slide pot for the throttle (black) isn't calibrating properly, it will register the axis with some wriggle until pressure is released;
Does anyone know the specifics for these Potentiometers?? I have attached photos;
Board number is LBX-19500，
C-V1.1 202011
please and thanks as always -
There are numbers on the other side; Seems the Manufacturers are P&G so using that number...Leave a comment:
-
HP 23-q107a P&Q cm-4 94v-0 e162264 schematic and boardview please
HI;
Does anyone have this Schematic and boardview
Model ; HP23-q107a
Mother Board; P&Q cm-4 94v-0 e162264
Charger is good, cannot find power on DC Input, Input light no power;
Figuring is just a port issue
Please and thanks as always -
Awesome; thanks...Leave a comment:
-
thanking you...Leave a comment:
-
P21N03REOE4206 Mosfet identification
Hi guys;
I need to replace two MOSFET's, the full number is
P21N03REOE4206; I have attached a Picture; Does anyone maybe know the UM? maybe OUM ? Logo for the manufacturer?
Please and Many thanks as always;... -
I have 19v coming in; 3.5v into the battery;
one pin on the power switch is at 3.5v until pressed, then I can't get any Voltage to any pin on the switch; OhM abit all over the place too;
Can I confidently call this a switch issue??Leave a comment:
-
Thanking you...Leave a comment:
-
How can I edit or delete the Original post?
Dell G15 5520, HDK50 LA-L655P
"Ver 1.0 Mid 2021;
is what it should have been apologies again...Leave a comment:
-
Apologies; I mistakenly thought that “P105F” was the sub model; I will look for some more info and look to edit or change this thread; Thanks for bringing it to my attention...Leave a comment:
-
I did read it??
Did I do something wrong?Leave a comment:
-
Dell G15 5520 LA-L655P boardview or schematics needed please
Hi Ppls
Working on a Dell G15 5520, motherboard [B]LA-L655P.[/B]
No power no LEDs; Ive tried all the basic battery disconnect, bios reset (even though it felt pointless with no charge indicator)
There is power getting to the board as there is heat generating toward the centre of the board, which I am presuming is part of the charge controller;
I haven't ruled out a faulty power switch so, anyone have schematics and board view for g15 5520 p105f to find safe jump points would be great, then I can work from there; or maybe you have had this issue?... -
Hi Ppl’s
I guess the common theme here is Im new to this site;
so thats one box ticked;
Im one of those weird bread of human from the land down under; Australia; We only just got electricity so please bear with us;
My only electronics experience is Plugging in my first colour TV; So lucky Ive enrolled myself in some training IPC 7711/7721, plus some logic board techniques;
All Jokes aside, I have had some Phone/Laptop and PC repair experience; I can repair anything easily diagnosed;
Board level diagnostics, being...Leave a comment:
No activity results to display
Leave a comment: