Re: Dell E6540 Boardview needed
Thanks,
but this is schematic I already have it, i need the board view for location of SMD components
elrefaey_mahmoud
Member
Last Activity: 03-28-2025, 07:38 AM
Joined: 03-26-2013
Location: cairo
-
Re: Is my Laptops Hard Drive on it's Way Out? (4 Year Old Samsung ST1000LM024)
SSD disks are now more useful than HDDLeave a comment:
-
Dell E6540 Boardview needed
I need the Board view for MB LA9411P pls
Thank you in advanceLeave a comment:
-
-
Re: Bios for HP Pavilion g6-2251sx needed urgently
I flashed the bios you sent but did not work, did i miss something?Leave a comment:
-
Re: Bios for HP Pavilion g6-2251sx needed urgently
Many thanx for you allLeave a comment:
-
Re: Bios for HP Pavilion g6-2251sx needed urgently
unfortunately it is not available, it is destroyed by someoneLeave a comment:
-
Re: Hifi amp has stopped.
something important to test diode or transistor put the multimeter on diode or buzzer, and for resistors select the suitable resistor rangeLeave a comment:
-
Re: Hifi amp has stopped.
I suggest you should work on each channel separately,
first remove the main output transistors(C3519 & A1386) for the two channels R & L
now for one channel ( R for example ) do the following
set your multimeter to read voltage (100 or 200 ) and take readings on PCB for base emitter voltages for each output transistor (C3519 & A1386)
you should find it reads around 0.5v to 2.5v (while transistors are out of the pcb)
if readings are diff then track for the small biasing transistors for that branch and test...Leave a comment:
-
Re: Bios for HP Pavilion g6-2251sx needed urgently
thanx for reply, but I've already tried it with no luck.
are you sure it should work for this model g6-2251sx?Leave a comment:
-
Re: Hifi amp has stopped.
you should test all small driver transistors as well and all the diodes for each channel R & LLeave a comment:
-
Bios for HP Pavilion g6-2251sx needed urgently
I need Bios for HP Pavilion g6-2251sx
MB DA0R33MB6F0 REV:F
Thanx in advance -
Re: New Members - please post your introductions here
Hi,
I'm happy to join this forumLeave a comment:
-
Re: New Members - please post your introductions here
Hi,
My Name is Mahmoud Elrefaey, I'm an electronics engineer have good experience in electronic devices repairLeave a comment:
No activity results to display
Leave a comment: