LA-G078P not charging when power is on.
Charges good when power=OFF.
epw50 la-g07fp schematic used
Charges good when power=OFF.
epw50 la-g07fp schematic used
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Last edited by Dinneke; 10-28-2022, 03:26 PM. -
Re: LA-G078P not charging
Are you using the official and recommended power adapter for this unit?
If not, the logic board can be throttled and battery charging can be impacted due to a weaker power source. -
Re: LA-G078P not charging
It's originalComment
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Re: LA-G078P not charging
Any schematics available for this board?
Locate the dcin connector -> nearby should be 2x dcin mosfets. What are their topside markings?
Nearby should be the charger IC that drive the dcin mosfets. What are the topside markings of the charger IC?
Post close up pics if this region.
From these details, we can better understand the charging portion of the logic board.Comment
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Re: LA-G078P not charging
Schematic not available
epw50 la-g07fp schematic usedComment
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Re: LA-G078P not charging
Bq24725Comment
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Re: LA-G078P not charging
This behavior is typical when you use a lower wattage adapter type than the product calls for, can you post what is reported as the detected AC adapter in BIOS and what is the adapter recommendation written on the bottom cover of the laptop?Comment
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Re: LA-G078P not charging
It's a HP, bios state no charger information, it needs 45W and that's charger i used, tseted an known good chargerComment
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Re: LA-G078P not charging
Measure the voltages on mosfet PQB13 for both cases.
Post the readings.Comment
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Re: LA-G078P not charging
PQB13 Drain 19V Source 13V when charging
Drain 11V Source 11V when ON not chargingComment
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Re: LA-G078P not charging
Measure pin 5 and 6 of BQ24725 while charging and not charging.Comment
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Re: LA-G078P not charging
P5 3,2 V charging
P6 2,6V charging
when not charging, power ON no changeComment
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Re: LA-G078P not charging
The gate voltage readings were not posted for PQB13.Comment
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Re: LA-G078P not charging
Gate
13V charging
17V not chargingComment
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The charging indicator light on my ASUS X54H laptop is always on even when the charger is disconnected.
Windows also shows ''Plugged in'' when charger is not connected.
This problem started year ago gradually, when unplugging the charger the charging light took several seconds to disappear, then minutes, and now almost always on even when unplugged for an entire day.
Strangely, before sometimes immediately when plugging in the charger the charging light went away, and later came back with it connected.
If I let battery run out and say it has 3% Windows will... -
Hello,
i have similar problem as https://www.badcaps.net/forum/showthread.php?t=37828
QUOTED
-It works on charger (without battery connected-only charger)
-It works on battery (without charger connected-only battery)
-& it also works when plugged in battery & charger, but it's not charging the battery
//Confirming, i have same issue, but problem started from charger, centre PIN is outputing 10V+ and jumping randomly 19V
and..
QUOTE
The IC cannot maintain the input current level... -
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I've downloaded...
Comment