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Aspire 5742ZG (NEW1 LA-5893P Rev1.0) Doesn't turn on
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FRD [ 14 янв 2016, 20:02 ]
Заголовок сообщения:  Aspire 5742ZG (NEW1 LA-5893P Rev1.0) Doesn't turn on
Hi everybody, there is LA-5893P which doesn't turn on, I have flashed both the BIOS and EC, also have measured all the S5 voltages and they are present as follow.

+3VALW
+3VALW_EC
+3V_LAN
+3V
+5VALW
+5V
+VSB
+RTCVCC

There is also 3v available at power button. battery is dead so can not test with battery. What should I check next and how should i proceed?

Thanks.
stafford [ 14 янв 2016, 20:55 ]
Заголовок сообщения:  Re: Aspire 5742ZG (NEW1 LA-5893P Rev1.0) Doesn't turn on
vsuson? susp?
FRD [ 15 янв 2016, 15:04 ]
Заголовок сообщения:  Re: Aspire 5742ZG (NEW1 LA-5893P Rev1.0) Doesn't turn on
stafford писал(а):
vsuson? susp?



Thanks for the reply, what are these voltages/signals? couldn't find them in schematic.

I inspected some other schematics and found that vsuson is the signal which is issued from IO controller to enable some voltage regulators, right?

What about susp?

Sorry to ask a lot of questions, I'm also trying to learn something along.

thanks
stafford [ 15 янв 2016, 16:50 ]
Заголовок сообщения:  Re: Aspire 5742ZG (NEW1 LA-5893P Rev1.0) Doesn't turn on
get schematic LA-5891p
FRD [ 15 янв 2016, 17:22 ]
Заголовок сообщения:  Re: Aspire 5742ZG (NEW1 LA-5893P Rev1.0) Doesn't turn on
stafford писал(а):
get schematic LA-5891p


I have the LA-5893P schematic as the motherboard is , but I couldn't find vsuson, but there are susp and susp# all over the schematic.
You tell me to download LA-5891P!!!

I dled that one also, but again no sign of vsuson.
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