xRaPiDxX
Member
Last Activity: 01-29-2024, 06:13 AM
Joined: 02-19-2021
Location: Warsaw
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Thank you for your help. Unfortunately I do not have account there. I hope someone will able to help me.
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JBL Voyager - LFMV0YAG10100 V130923 - element identification
Hello, the motherboard mark: LFMV0YAG10100 V130923 (the only marks I found on the MOBO. I'm looking for the name of the element in the photo. It's hard to read anything on it, I can see something like 23 at the top and PM at the bottom.
Please help me.
Greetings. -
Asus D550C X551CA no display
Hello! Laptop doesn't have display only backlight appears.
I reprogrammed bios, change screen and nothing changed.
Power consumption is: 0,745ma without battery. What should I check next?
Greetings
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Re: HP VICTUS 16-E0403NW DAG3MQMBAE0 rev. E problem with TPM
Thank you! Laptop works great now.Leave a comment:
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Re: HP VICTUS 16-E0403NW DAG3MQMBAE0 rev. E problem with TPM
Ok, I'm sorry. I thought it is maybe problem with TPM component on motherboard.
SN: 5CD201CTCP
I attached both bioses: 'NEW' is a file I used and now turns on but with TPM's problem.
'copy old' is a original dump....Leave a comment:
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HP VICTUS 16-E0403NW DAG3MQMBAE0 rev. E problem with TPM
Hi! I have problem with HP VICTUS 16-E0403NW laptop, board designation: DAG3MQMBAE0 rev. E. When the laptop came to me, it did not turn on, after reprogramming the BIOS, the laptop turns on now, but there is a problem with the TPM (photo in attachments).
After pressing the button: 'Y' - the laptop ?resets? there is a slight backlight, the diode from the switch lights up and then laptop turns off, the situation repeats all the time
Reprogramming the bios with a new batch and pressing the button: 'N' -laptop returns to this window all the time. How to solve this problem? First time... -
Re: Lenovo 100-15idb NM-A681 no turning on
PL9 resistance to ground (NO PQ39, PQ40, PU908 soldered)
PIN 1 - 35,86 ohm
PIN 2 - 36,32 ohm
so is this line correct?Leave a comment:
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Re: Lenovo 100-15idb NM-A681 no turning on
With 0.9V it consumes only 0.030A. I can not feel any heat using my hands. I do not have thermal camera. Can I increase voltage?Leave a comment:
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Re: Lenovo 100-15idb NM-A681 no turning on
PQ39 (no soldered) resistance to ground
S: GND
G: out of range
D: 37,68ohm
PQ40 (no soldered) resistance to ground:
S: 37,98 ohm
G: out of range
D: 0,36 mohm and increaseLeave a comment:
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Re: Lenovo 100-15idb NM-A681 no turning on
I removed PQ39, PQ40 and PU908.
S-D on PQ39 now: 36,18ohmLeave a comment:
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Re: Lenovo 100-15idb NM-A681 no turning on
I have 32ohm on the second pin of PC97. Should I remove PU908 to check if resistance increase or is 32 ohm good for this line?Leave a comment:
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Re: Lenovo 100-15idb NM-A681 no turning on
Yes schematic and boardview are available. I use them from this post: [url]https://www.badcaps.net/forum/showthread.php?p=1044937#post1044937[/url]
Yes, but I do not know where to start measuring now.Re: Lenovo 100-15idb NM-A681 no turn...measuring now.Re: Lenovo 100-15idb NM-A681 no turning on
Yes schematicLeave a comment:
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Re: Lenovo 100-15idb NM-A681 no turning on
Okay so I replaced PQ39 still no display, CPU cold.
NOW:
PQ39
S:0 voltage to ground
G:4,4519 voltage to ground
D: ~8,50 voltage to ground
Source - drain: 35,46 ohm (no power)
Source - Gate: 9,812 mohm (no power)
Gate - drain: 6,382 mohm (no power)
Power consumption is the same.Leave a comment:
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Re: Lenovo 100-15idb NM-A681 no turning on
PQ40 without PQ40:
Source - drain: 1.8mohm and goes down (no power)
Source - Gate: 2.3kohm and goes up (no power)
Gate - drain: 0.75mohm and goes down (no power)
PQ39(soldered) without PQ40:
Source - drain: 36,47ohm (no power)
Source - Gate: 10mohm and goes down (no power)
Gate - drain: 6.4mohm and goes down (no power)
PQ39 without PQ 39:
Source - drain: 32,87ohm (no power)
Source - Gate: 10mohm and goes down (no power)
Gate - drain: 5.5mohm and...Leave a comment:
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Re: Lenovo 100-15idb NM-A681 no turning on
I measured coils, measurments in attachments and checked pq40 and pq39. Should I replace them because of low resistance?
PQ40
S:4,45 voltage to ground
G:16,148 voltage to ground
D:20,10 voltage to ground
diode test: 0,53V
Source - drain: 2mohm and goes down (no power)
Source - Gate: 1ohm (no power)
Gate - drain: 13mohm and goes down (no power)
PQ39
S:0 voltage to ground
G:4,4528 voltage to ground
D:4,32 voltage to ground
diode...Leave a comment:
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Re: Lenovo 100-15idb NM-A681 no turning on
Thanks for help, I replaced PQ307. Now laptop turns on but with no display, cpu is cold.
I measured coils:
PL9: 1.6985V
PL701: 1.0474V
PL304: 5.078V
PL303: 3,371V
PL501: 1,3557V
Bios chip Has 3,370V.
Power supply consumes 0.098a when turns on.
If I shutdown through button it consumes 0.011a.
I programmed bios and changed ram nothing changed.Leave a comment:
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Re: Lenovo 100-15idb NM-A681 no turning on
After removing PQ307
1-3.32 voltage to ground, 100.67kohm (no power)
2-3.309 voltage to ground, 147.77kohm (no power)
So do i need to find and replace PQ307?Leave a comment:
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Re: Lenovo 100-15idb NM-A681 no turning on
After removing pq998:
PR309:
1-3.259V
2-0.0086VLeave a comment:
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Re: Lenovo 100-15idb NM-A681 no turning on
Pin #2 of PR309: 128.30ohmLeave a comment:
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Re: Lenovo 100-15idb NM-A681 no turning on
PR309
Pin 1 (PACIN) - 3.263V
Pin 2 (PACIN_G) - 0.0086VLeave a comment:
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