Re: Testing IC Charger BQ24725ARGRR chip ACER ASPIRE V3
you can test if any short with gnd (pin 14) with the aother pin, take an idea from block diagram page 14
nacer8
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Last Activity: 02-25-2025, 12:08 PM
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Re: How does a KBC normally get its power?
Perhaps you can foun some information...
[URL="http://*******/viewtopic.php?f=40&t=11322"]http://*******/viewtopic.php?f=40&t=11322[/URL]Re: How does a KBC normally get its power?
Perhaps you can foun some information...
[URL="http://*******/viewtopic.php?f=40&t=11322"]http://*******/viewtopic.php?f=40&t=11322[/URL]Leave a comment:
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Re: How does a KBC normally get its power?
see if this schematic is similar ?
Not the same EC but at the end of schematic, there is an power sequence diagram...Last edited by nacer8; 04-05-2014, 01:37 PM.Leave a comment:
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Re: How does a KBC normally get its power?
It is normal for some laptop that if you take out CMOS battery, motherboard powers on by itself as soon power adapter is connected.
Attention to the microcontroller, the same reference does not mean the same input output, it is better from the chipset datasheet to identify signals.
What motherboard you have?Last edited by nacer8; 04-04-2014, 02:58 AM.Leave a comment:
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Re: How does a KBC normally get its power?
When you release the power button, RSMRST# fall down briefly and return to high state... you should take a great attention to detect that with a DMM...Leave a comment:
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Re: How does a KBC normally get its power?
The transition low to high of RSMRST is the reset of Southbridge witch return two signals SIO_SLP_S5# and SIO_SLP_S3# to the KBC, then the KBC output SUS_ON signal…Leave a comment:
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Re: How does a KBC normally get its power?
perhaps this sequence can help....Leave a comment:
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