zaurus81
Member
Last Activity: 12-05-2024, 11:13 AM
Joined: 02-23-2021
Location: ragusa
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I've always thought about this thing. thx piernov... -
hi, thx for reply. DC jack has two additional pins (DE_JACK_DETECT and A/D_MAX_POWER_R_10)....
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i don't understand the question. see photo...
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maybe an "avada kedavra"🤣
same story.....4.3 present
is it normal to have prochot# at 0v on bq? something releted to absence of original charger??...Leave a comment:
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the voltage is absent on each inductor except the one that charges the battery. I write the voltages in a photo. I don't see any p-channel mosfets, they are all n-channel. See [URL="https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/schematic-requests-only/3512902-asus-tuf-gaming-f16-2024-fx607j-60nr0hu0-mb4000-rev-2-0-boardview"]boardview[/URL]
these 2.4 volts, with time (a few minutes), drop to 0.8v
all these values are strange since the n-channel gates are at 0V (board without...Leave a comment:
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Wow, great news Paul!!
Good job!
Thx for the link, i'll leave the client running for a bit to help...Leave a comment:
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With Charger IC and sense resistor removed from the board, i always have 4.3 volt on ACN...
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No, they have all the same resistance, 13M ohm...Leave a comment:
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10.87M ohm...Leave a comment:
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I thought about something. Tell me if it makes sense. The main power line that has 4.3 volts is called PVBAT. If I analyze the boardview I see that it is connected to a series of other lines via pads (PAD6110, PAD6160, PAD6110 and so on). These pads can be separated because they are made of tin. If I separate all the pads I can see if I remove these 4.3v. If they disappear, I reunite all the pads one at a time testing from time to time until I find the responsible sector. What do you think?Leave a comment:
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with c60018 removed i always have this fu***ng 4.3 volt on mainLeave a comment:
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do I put everything back (sense resistor, transistor, resistor) except the capacitor C60018?Leave a comment:
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pin #2 of the resistor has 0.009 V...
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Resistor (R6040) mated with the base pin of the removed transistor (Q6004) has a value of 1K (tested with multimeter), this value matches the one reported on boardview and on partial schematic.
with transistor and resistor out of the board i have 4.3 volt on main power line....Leave a comment:
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I know that removing components for no reason makes no sense, and it's not my style even if I really like unsoldering. So don't consider what I told you in message 34#. In any case I removed the q6004 npn transistor and nothing changed.
Are the resistance values I wrote you in message 34# correct??
For me we can start the analysis from where we left off, from the sense resistor.
I noticed that if I connect a type c usb power supply equipped with a voltmeter to one of the ports, the voltmeter turns on and off as if it detected a short.
I did this because I saw that...Leave a comment:
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bordview says Q6008 is an n channel.
maybe it's Q6007...Leave a comment:
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Pin #1 9Mohm
Pin #2 20Mohm
I found a video on yt with a similar problem......I dont know if i can post the link here......video is made by Sorin (search Asus rog G731G)
He found a problem on OVP voltage protection ciurcuit, which drive to ground the gates of ACFET and RBFET (ACDRV). My circuit is a little different and i dont have schematic....only boardview. Could I please use your knowledge to study the above circuit?...Leave a comment:
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shorted probes give me 0.3 ohm (yesterday it gave me 0.4 ohm, today i clean my probes)
current resistor give me a value of 0.3 ohmLeave a comment:
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With current sense resistor removed i have:
0.4 ohm from pin #1 on BQ to one side sense resistor (I have already subtracted the resistance of my probes from this value)
0.4 ohm from pin #2 to other side of current sense resistor (I have already subtracted the resistance of my probes from this value)
the removed resistor is ok because i read the resistance of my probe.
So there is a problem (400m Ohm - 500m Ohm) on these two railLeave a comment:
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