Re: Lenovo Slim 3 14IGL05, RT5077A 1.8VALW missing
update
Change the RT5077A with a new one, and its back normal. Thanks.
ch3nzu
Member
Last Activity: 01-19-2024, 03:10 PM
Joined: 07-10-2021
Location: berau
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Re: ACER D270 3V and 5V ALW Missing
For anyone who still searching the answer,
I already found the problem, I replaced both capasitors (PC46 and PC58).
Now I have the 3.3V and 5V, and my netbook can turn on normally.Leave a comment:
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Re: ACER D270 3V and 5V ALW Missing
Already checked, there was 19V there, both in PQ13 and PQ14.
Looks like I've bought a defective chip here, I'm so confused.
Maybe I will buy another chip, and try again....Leave a comment:
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Re: ACER D270 3V and 5V ALW Missing
Pin 4 = 0V
Pin 14 = 0V
Pin 18 = 3.3V
Pin 1 = 0.98V
Pin 6 = 0.49V
On Diode mode
PL3 = 0.254V
PL4 = 0.231V...Last edited by ch3nzu; 08-18-2023, 08:36 PM.Leave a comment:
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Re: ACER D270 3V and 5V ALW Missing
PQ38
S = 18.88V
D = 18.88V
G = 9.31V
Resistance to ground :
PL4 = 1.69K ohm
PL3 = 2K ohm...Leave a comment:
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ACER D270 3V and 5V ALW Missing
Hi guys, I need help here
I have Acer D270 with no 3V and 5V ALW output.
When I plug the power adaptor, no Current was drawn.
There is no 3.3V in power button.
I'm focusing at RT8223M, already check voltage in each input/output pin
Pin 16- VIN = 18.88V
Pin 13 - EN =6.15V
Pin 18 -ENC = 3.3V
Pin 3 - REF = 2V
Pin 8 -VREG3 = 3.3V
Pin 17 - VREG5 = 5V
Pin 1 = ENTRIP1 = 0.99V
Pin 6 = ENTRIP2 = 0.5V
Pin 19 =LGATE1 = 5V
Pin 12 = LGATE2 = 0V
Pin 21 = UGATE1 = 0V
Pin 10 = UGATE2 = 0V...Last edited by SMDFlea; 08-18-2023, 02:26 PM. -
Re: Lenovo Slim 3 14IGL05, RT5077A 1.8VALW missing
yes, there was present.
VSYS 14.19V and
VIN_CT 20.21V
Note :
If I plug in adaptor power in 2 hours later, the laptop can turn on, 1.8ALWS and 1.2ALWS is present normally, but only for 3-5 minutes, and its shutdown again....Leave a comment:
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Re: Schematic for lenovo ideapad 3 14igl05 NM-C961 rev 1.0
thanks, it really helpfull...Leave a comment:
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Re: Problem : Programming EC Ene KB9026Q ASUS X456UQK with SVOD3
thanks all for the respond,
i dont know if this what the cause of it, but when checked again, i found that 1V is not present (like 3.3V and 5V). I found one resistor is turn bad, so I fix it, already check again, laptop can turn on normally without programming the EC, so maybe this is one that cause it cannot be program.
Thanks alot guys.Leave a comment:
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Lenovo Slim 3 14IGL05, RT5077A 1.8VALW missing
Hello guys,
I need some help here,
I have Lenovo slim 3, turn on, but no display.
For sometime it's can turn on for about 3 minutes, then its shutdowm itself, after than I cannot turn on the laptop again.
When i checked, i found that my 1.8VALW is missing in Bios Chip pin no. 8.
I found that 1.8VALW is from RT5077A. Already check VIN
VIN1_1/VIN1_2 5.1V
VOUT1 0V
VIN3_1/VIN3_2 5.1V
VOUT3 0V
VIN4 5.1V
VOUT4 0V (for 1.8VALW)
VIN5 5.1V
VOUT5 0V (for 1.2VALW)
VCC 5.1V
VSYS 14.19V
VIN_CT 20.2V
PIN30...Last edited by ch3nzu; 06-29-2023, 11:31 PM. -
Schematic for lenovo ideapad 3 14igl05 NM-C961 rev 1.0
If anyone have this board schematic, I need this one. thanks -
Re: Problem : Programming EC Ene KB9026Q ASUS X456UQK with SVOD3
Sory IWant add some information,
This Asus X456UQK has a problem with no respon with power button.
Already check :
19V power rail OK.
3.3V and 5V OK.
3.3V in power button, turn to 0V when pressed. OK
But still no respon, Ampere show 14mA when adaptor pluggin. But no reaction when I pressed the power button.
Already program the BIOS chip, still the same.Leave a comment:
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Problem : Programming EC Ene KB9026Q ASUS X456UQK with SVOD3
Hai Guys, I need help here
I wanna to reprogram EC Ene KB9026Q C,
if you guy see my picture no 1, that (pin 9 : KSI4) is not connected,
already test the pin from Keyboard connector to SVOD3, its not problem.
but somehow, its said pin false.
Try to ignore it, but still cannot read id (picture 2)
Its that mean my EC ene is bad?... -
Re: Notebook HP 240 G8 not turning on, charging is ok.
Already tested the laptop for 1 hour, its look normal.
Thanks again for the comment and support guys.Leave a comment:
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Re: Notebook HP 240 G8 not turning on, charging is ok.
Many thanks, I checked all the caps as you told, then I found this cap is shorted (see picture).
Now the hp laptop is turn on normally.
I just remove it, not replacing it because i dont know it value. Is that oke?...Leave a comment:
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Notebook HP 240 G8 not turning on, charging is ok.
Hai guys, i have a problem with this hp laptop.
I already found there is a problem with power button, usb-c board (see picture) that cause its not turning on.
When i remove this small board, laptop can turn on by shorted the power switch pin with tweezers. (Pin 14 from left side)
But when its attached, laptop wont start when i press the power button.
Already check 3.3V at power button swith, its respond when I press it (0V)
I think maybe i have a problem with usb 3.0 ic here, i just wonder if this is oke to remove the ic, and power in on to test this?... -
Re: What is this component?
thanks for the information. really helpful.Leave a comment:
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What is this component?
Guys, need help, i need to know what component is this?
If anyone can help, I'll apreciate it... -
Re: Prolem with +Vin, Acer E3-112 DA0ZHKMB6C0 rev c
example in PC80 pin 1, +VIN value is 15.6 voltLeave a comment:
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Prolem with +Vin, Acer E3-112 DA0ZHKMB6C0 rev c
Hai guys, need help here.
I have problem with +VIN, its only show 15.6V, its should be 19V, am I correct?
I have already check PR71, it show 19 volt, then i cannot find away to find why +Vin is drop to 15.6V.
Need assist here, thanks...
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