lenovo g570 cannot turn on

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • String2016
    Badcaps Legend
    • Nov 2015
    • 2229
    • philippines
    #1

    lenovo g570 cannot turn on

    I need help please on this LENOVO G570 piwg2 la-675ap. the problem is sometimes it turns on of pressing power button many times but this morning cannot turn on anymore.I tried replacing the switch still same issue, here is the measurement on the power button connector

    PIN1= 5v
    pin2=0V
    PIN3=0V
    PIN4=0V
    PIN5=0V
    PIN6=3V
    PIN7=3V
    PIN8=0V

    I noticed also when press the power button the pin 6 and pin 7 3v nothing respond not going to 0v when pressing the power button.on the bios chip main there is no standby 3.3v on pin 3 and pin 8. anyone can help on this please
    Tags: None
    • String2016
      Badcaps Legend
      • Nov 2015
      • 2229
      • philippines
      #2
      Re: lenovo g570 cannot turn on

      anyone can help on this please

        Comment

        • mcplslg123
          Badcaps Legend
          • Jun 2015
          • 7262
          • india
          #3
          Re: lenovo g570 cannot turn on

          Try switching by shorting to gnd on D23(not populated on this mb) located near power switch connector. This laptop is known to have issues with power switch. If you remove the black tape from the power switch(bottom side), you will find track is cut due to rust. may not be the case here but chances are very high.

            Comment

            • String2016
              Badcaps Legend
              • Nov 2015
              • 2229
              • philippines
              #4
              Re: lenovo g570 cannot turn on

              @mcplslg123 your 100percent right there is a broken traces under na black tape. there is no D23 but it has D24 i find pin 2 have 3.3v and short to ground laptop turns on. so whats next to do here should i jump a wire from d24 to power switch?
              Last edited by String2016; 10-30-2019, 11:21 PM.

                Comment

                • String2016
                  Badcaps Legend
                  • Nov 2015
                  • 2229
                  • philippines
                  #5
                  Re: lenovo g570 cannot turn on

                  Problem solved on this by jumper two wire on d24 to switch. thanks again mcplslg123

                    Comment

                    • mcplslg123
                      Badcaps Legend
                      • Jun 2015
                      • 7262
                      • india
                      #6
                      Re: lenovo g570 cannot turn on

                      Originally posted by Mulong2019
                      Problem solved on this by jumper two wire on d24 to switch. thanks again mcplslg123
                      Welcome bro. this is widely known and common issue on this platform. I, however, dont jumper wire as you did. I just connect the broken traces with a wire.

                        Comment

                        • String2016
                          Badcaps Legend
                          • Nov 2015
                          • 2229
                          • philippines
                          #7
                          Re: lenovo g570 cannot turn on

                          thanks again for the info. i just try to replaced the switch with the same model and this time no broken trace but still cannot turn on that is why i removed the connector and jumper two wires now its working fine. thanks again

                            Comment

                            Previous template Next

                            Related Topics

                            Collapse
                            • pajdek
                              Lenovo Y700-17ISK turn on and off
                              by pajdek
                              Hello, i have some issues with my laptop Lenovo Y700-17ISK (motherboard BY511 NM-A541), it started when i turn on the laptop, but the lcd wont turn on, i then connected it via hdmi to tv and screen was ok. So i thought maybe lcd stripe is faulty, i removed the bottom cover, disconnected main battery, reset the cmos by disconnecting battery for 1 min, then slighty move the lcd stripe. Conncted power supply and tuned on my laptop, the lcd turn on, it started to load os, then it turn off, after a second it turn on, then after like 3 seconds turn off again, and so on. Removed power supply, waited...
                              09-20-2023, 02:49 AM
                            • melvinvdb
                              Lenovo y520-15ikbm most of the time doesn't turn on
                              by melvinvdb
                              Hello,

                              I've repaired a few laptops in my life but this time my own laptop died😂.
                              Funny enough this one is a bit tough on me.
                              It doesn't turn on (most of the time).
                              Model: Lenovo y520-15ikbm (NM-391).

                              The only way to make it turn on is:
                              1) unplug battery + charger + rtc (seems irrelevant)
                              2) wait a minute
                              3) plug battery/charger in
                              4) on charger plugin, laptop turns on by itself. On battery plugin you have to press power button. Sometimes nothing happens and you have to try again.
                              5) when it turns on it also displays POST...
                              08-15-2024, 12:28 PM
                            • g1150
                              Lenovo G565 Laptop , LCD not turn on, external terminak ok.
                              by g1150
                              Lenovo G565 Laptop onboard LCD Display does not turn on.
                              Only works with external Monitor.
                              I am trying to verify that the LCD signals from the motherboard are ok.
                              The LCD was working, but over time happened to not turn on more frequently.
                              Now dead.
                              Possibly the cable from MB to LCD is broken somewhere.

                              I just wonder how it is detected if external or internal monitor shall be activated ?

                              I found the following schematic on the net:


                              Problem 2:
                              The graphics chip ATI Mobility Radeon HD5470 seems defective.
                              On Win7...
                              05-07-2025, 11:51 AM
                            • dqtech
                              lenovo x240 nm-a091 wont turn on
                              by dqtech
                              i got this laptop with no power issue....i flashed the bios and laptop can turn on and use normally....but when i shut it down and rest for few minute (2-3 minutes), it wont turn on....i have to flash bios again...any idea what is the problem?...when i shutdown and suddenly press power button to turn on, it will turn on normally....problem happen when i rest the laptop 2-3 minutes after shutdown, it will not turn on....i need to flash bios again
                              board number VIUX1 NM-A091 REV:1.0...
                              02-07-2024, 01:57 AM
                            • Patriarxis
                              Lenovo IdeaPad 3 14ADA05 dosen't turn on
                              by Patriarxis
                              Hello.

                              I have a Lenovo IdeaPad 3 14ADA05 that it dosen't turn on.

                              It takes 0.027A and the power button flashing.

                              All the voltages on the board are ok. 3.3, 5 etc.

                              Also is charging the buttery .

                              What else i can check?​
                              05-26-2025, 01:03 AM
                            • Loading...
                            • No more items.
                            Working...