Compal LA-C341P - A4WAB Acer E5-473 - Schematic

[lorins_core]

have a nice day to all

i need this schematic diagram..

[rickybucalan]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

hi guys..i got the same laptop im looking for bios file of this model. hope u might help tnx.

[polytek]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

have a nice day to all

i need this schematic diagram..

i hav'nt point, you can download if you have point:
https://www.elvikom.pl/schemat-acer-...ab-t42042.html

[brixlaptoprepair]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

[sudheerahmed]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

hi
need the bios for acer e5-473 motherboard LA-C431p

thanks

[moophus]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

brixlaptoprepair - thanks!
anyone have the boardview for this?

I have one of these with no lights, no fan.
Have power on the alw rails though.... very puzzling.

[techman1025]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

Hi No B-V file out for this board . Also full bios updates could be downloaded and extracted right from acer site.
Techman1025

[moophus]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

found the boardview. paid a few polish zloty for it :P

[moophus]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

No lights, no power.
19v DC in is OK
3v and 5v ALW has power as well but all the rest of the rails are off and the schematic shows they all have SUSP# as input.
I'm not getting voltage out of SUSP# from the EC. The voltage lines going into EC test ok.
SUSP# is 128k ohms to ground.... is this normal? or perhaps a short to ground somehwere? hoefully not in the EC.


The computer was brought into a university repair corner because of a harddrive crash. Whilst they were "repairing" it it stopped getting power and booting
My friend has passed it onto me to have a look.

[techman1025]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

Hi
Have you checked RSMRST 3.3V and S5 3.3V ? and any activity on external mouse or keyboard ..lights or anything. Missing anything reflash bios so let say the dcjack light don't light up when plugged in thats another sign to start with bios. If it's a two chip board meaning bios& EC then you need to relash both.
Techman1025

[moophus]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

Thanks Techman,

RSMRST is 0v, does that mean EC isn't running?

Is the +3VALW = S5 3.3v? - it's always on

Yeah, no lights on DCJ jack plugged in.... neither any devices (mouse,keyboard) - So how do I flash bios without a working PC?

[moophus]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

oh my, looks like I need to buy a programmer... is it the RT809F?

So what would cause the firmware in KB9022 (EC) to get corrupted? Could it just be in a limbo state and need a reset?

[techman1025]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

hi
Tl866A with opt adapter around a 100. Bucks on eBay is a very good cheap programmer easy to use just pull the 8 pin spi chip back up the original a when you are ready I will upload new file ready to re flash chip easy as that . Just upload original file after you back it up.
Techman1025

[techman1025]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

You could always check cmos battery it should be 3v or more not lower if this board uses a amd yes this could cause it to be in limbo also unplug it for a few min worth a try if it's a Intel model firm ware these days are very common to fail on laptops as much as 60% of my repairs are bios 😳
Techman1025

[dexx]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

does anyone here have EC file for this motherboard?

[polytek]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

does anyone here have EC file for this motherboard?

try this: bios and ec file and post a feedback:

[dexx]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

try this: bios and ec file and post a feedback:

can't file too long my chip is only 4mb capacity

this is the original file

[techman1025]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

Here is a new bios & new EC bins.
Techman1025

[techman1025]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

Hi
Are you sure yours is the original file ? mine are downloaded from acer for you exact model 8MB and EC BIN is 128 i also have back up's that i use all before all are 8MB
for sure use my file you should have no problems
techman1025

[dexx]

Re: Compal LA-C341P - A4WAB Acer E5-473 - Schematic

im pretty much sure because i extracted it on the IC but will try yours now will post feedback later

thanks