radoslav baca
Member
Last Activity: 04-13-2025, 01:48 PM
Joined: 05-14-2024
Location: Vranov nad Topľou
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I measured through the resistor and the picture shows the result. Where I measured 365K ohm is the plus pole. I also measured the disconnected mosfet PQ311 and between all legs I measured 1 ohm, so this mosfet will be good. Mosfet PQ312 shows me infinity 0L....
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I also disconnected the second mosfet. When it was warm, it showed some values, but terribly high, over 700 K ohms. When it cooled down, I didn't measure anything anymore and the meter showed 0L between D-S and D-G. I also attach a photo when I measured the pins on the board. I measured the plus and minus from the other side of the connector to the other side of the board on the pin to see if there was a short circuit and everything beeped. Then I measured the internal pins and according to the picture you can see how they worked with each other....
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I removed PQ311 from the motherboard and measured PQ312. G - S 1 ohm S - D 570K ohm and G - D - 575 K ohm...Leave a comment:
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PQ311
S - D - 0,7 ohm
S - G - 1ohm
G - D - 1,3 ohm
PQ312
S - D - 294K ohm
S - G - 1 ohm
G - D - 304K ohm
I found a datasheet for the PQ311 showing how the pins are arranged, but not for the PQ312, but I went according to what was shown on the pq311, that 4 pins are Drain, 3 pins are Source and 1 pin is Gate....Leave a comment:
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I measured PL1 and PF1 on both and it showed 305K ohms to ground....Leave a comment:
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Lenovo IdeaPad S340-15IWL charging not working
Hello everyone,
Description : Lenovo
Model : 81N8
Serial Number :MP1LFDME
Product Number : PRC4
CN :
MFD: 19/05/30
MTM : 81N800BGCK
Hard disk : NVMe 256GB P/N SSS0R27339
CPU: Intel Core i3 8th generation
RAM : DDR4 K4A8G16 4 x chip
MB : EL5C3/EL531/EL431 LA-H101P Rev 1.0 2018/12/12
Hello everyone,
I have a problem with my laptop. When I measure the connector where the adapter is connected between + and - it shows almost 0V. If I disconnect the connector from the motherboard, I measure between... -
The charger is an original DELL 65W, which is also shown in the BIOS when I checked it. Windows also shows charging, but the indicator does not go up and also the LED diode, which indicates charging from the side, lights up after connecting the charging and goes out after a short time....Leave a comment:
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I just measured each leg separately and here are the measurements:
PQB11:
S1 - 19,79 S2 - 19,79 S3 - 19,79
G - 24,97
D5 - 19,79 D6 - 19,79 D7 - 19,79 D8 - 19,79
PQB12:
S1 - 19,79 S2 - 19,79 S3 - 19,79
G - 24,97
D5 - 19,79 D6 - 19,79 D7 - 19,79 D8 - 19,79...Leave a comment:
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I measured things as you wrote them and here are the results:
[B]PQB 11[/B] [B]source (1-2-3) & drain (5-6-7-8) 503k Ohm [/B]
[B] source (1-2-3) & drain (4) 538k Ohm[/B]
[B] gate (4) & drain (5-6-7-8) 0L
PQB 12 source (1-2-3) & drain (5-6-7-8) 484k Ohm
source (1-2-3) & drain (4) 538k Ohm
gate (4) & drain (5-6-7-8) 0L [/B]
It's just that my laptop works on the battery, but the charging diode lights up and after a few seconds it goes off, and Windows also says that it's...Leave a comment:
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I measured according to your instructions, red pin to ground and black to PL3, and after connecting the charging connector, the state on the measurement in diode mode did not change and showed infinity...Leave a comment:
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The customer is a gypsy here in Slovakia, by the fact that I have already interfered with the laptop, I believe that they will not recognize their relamation. In that case, I will have to solve it myself, but I have no idea what could be wrong there......Leave a comment:
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I tried through this manual and it doesn't work at all.. The driver on the site is not compatible with this device and I don't see VMD in the BIOS either....Leave a comment:
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Hi, thank you very much for the Bios, everything works but I found that I don't see the hard drive in the bios. can you help me with that too?...Leave a comment:
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Hi,
I am attaching the newly downloaded BIOS in the attachment. You can look at it and fix it. Thank you...Leave a comment:
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Unfortunately, the battery is dead, but I can measure circuits if I have documents on what and where to measureLeave a comment:
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I'm going to try...Leave a comment:
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Thanks...Leave a comment:
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In Bios, it says 65W if I have an adapter connected. If I disconnect it, the 65 W disappears. Even if the charging light goes out, the adapter shows 65 W in the BIOS...Leave a comment:
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I checked the 3 pin and did not measure any voltage on it...Leave a comment:
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Hello, i need help with this biosLeave a comment:
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