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Search: Posts Made By: jp_jota
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-29-2019, 05:44 AM
Replies: 27
Views: 703
Posted By jp_jota
Re: Samsung np300e5a turn on but no image

Using a new CPU i turned te laptop on and it showed no image on the screen. Then i measured the resistance that changed from 0.64 Ohms to 0.13 Ohms.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-29-2019, 03:32 AM
Replies: 27
Views: 703
Posted By jp_jota
Re: Samsung np300e5a turn on but no image

hello, without cpu its 34.12 Omhs with cpu is 0.64 Ohms
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-28-2019, 01:27 PM
Replies: 27
Views: 703
Posted By jp_jota
Re: Samsung np300e5a turn on but no image

without cpu
1-3.15V
4-5.012V
6-bewteen 270Mv and 280Mv
10-5.091V
11- 103Mv

wtih cpu

1-3.15V
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-28-2019, 06:04 AM
Replies: 27
Views: 703
Posted By jp_jota
Re: Samsung np300e5a turn on but no image

i have a short sound in this line, but when turn on i have a 1.064V, and in the coil l3 ddr3 line i only have 1.5V without cpu, with cpu have 0V in this line. thanks for the help
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-28-2019, 05:47 AM
Replies: 27
Views: 703
Posted By jp_jota
Re: Samsung np300e5a turn on but no image

the pins 90, 43 and 42 its 0V and its make a impulse when i press the on/off but i canīt see how much voltage.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-28-2019, 05:35 AM
Replies: 27
Views: 703
Posted By jp_jota
Re: Samsung np300e5a turn on but no image

R252 have 3.3v and in side gnd 0V. all 3.3V for pch is ok. prtc_bat not have short and have 2.9V.
R160 have 5V and from side the U11 is 0V and with multimeter without power have 10Komhs
i will...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-28-2019, 04:39 AM
Replies: 27
Views: 703
Posted By jp_jota
Re: Samsung np300e5a turn on but no image

ok, i will see and i post, but in the case of the 12v_ALW i only have 9V and i can not find were is the 12V_ALW is created.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-27-2019, 05:10 AM
Replies: 27
Views: 703
Posted By jp_jota
Re: Samsung np300e5a turn on but no image

The voltage is:
49 - 3.3v
40 - 3.3v
4 - 3.3v
35 - 0V after resistor its 5v
32 - 5v
61 - 0,970 oscillating
42 - 0v
43 - 0v
75 - 3.3v
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-25-2019, 06:13 AM
Replies: 27
Views: 703
Posted By jp_jota
Re: Samsung np300e5a turn on but no image

i edit a photo with voltage
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-25-2019, 05:46 AM
Replies: 27
Views: 703
Posted By jp_jota
Re: Samsung np300e5a turn on but no image

ok, i will test now. and i find the real model of this board. its a BA41-01839A
Forum: Schematic Requests ONLY! 05-25-2019, 04:55 AM
Replies: 1
Views: 126
Posted By jp_jota
Re: boardview and schematic for samsung np300e5a

the model in this board is BA41-01839A PTC
Sorry but as has the two references I fooled myself. thank you
Forum: Schematic Requests ONLY! 05-24-2019, 12:21 PM
Replies: 1
Views: 126
Posted By jp_jota
boardview and schematic for samsung np300e5a

hello i need the boardview and schematic for samsung np300e5a
model:

MODEL: SCALA3-15 / PETRONAS-15 REV 1.5
BA92-09186A

thanks
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-24-2019, 11:15 AM
Replies: 27
Views: 703
Posted By jp_jota
Re: Samsung np300e5a turn on but no image

thanks for the help. but i think this schematic is not for this model, i only can find the 0803gmt and 6912a mosfets.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-24-2019, 09:33 AM
Replies: 27
Views: 703
Posted By jp_jota
Re: Samsung np300e5a turn on but no image

in the position as it is in the picture taken. the left side that goes to the condensor has 00.68 ohms and the right side that comes from the mosfet has 5.760mohms but the value is always going down
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-24-2019, 06:35 AM
Replies: 27
Views: 703
Posted By jp_jota
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-24-2019, 04:52 AM
Replies: 27
Views: 703
Posted By jp_jota
Re: Samsung np300e5a turn on but no image

the pc does not boot, just turn on, sometimes it was all good, but the turn off did not start any more, I did a scheme with a photo to realize how it is. as I do not have the boardview of this board...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-23-2019, 12:34 PM
Replies: 27
Views: 703
Posted By jp_jota
Re: Samsung np300e5a turn on but no image

news: the mosfet 1912a not heat without cpu, and have the 1.050v and gpu not heat anything. the coil next to the gpu makes short with multimeter to the gnd and 0v. its normal?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-23-2019, 12:33 PM
Replies: 27
Views: 703
Posted By jp_jota
Re: Samsung np300e5a turn on but no image

I never did and I do not know how to do it, I'll see how it's done and I'll try. thank you
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-23-2019, 11:30 AM
Replies: 27
Views: 703
Posted By jp_jota
Samsung np300e5a turn on but no image

Hello my friends, I need your help again. I am trying to repair a samsung np300e5a, which turns on but no picture appears and the fan runs at full speed, sometimes it turns on and everything is ok....
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 02-16-2018, 04:35 AM
Replies: 41
Views: 1,726
Posted By jp_jota
Re: asus x555ld not turn on.

see here
https://www.badcaps.net/forum/showthread.php?t=50490&highlight=x550cc
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 02-16-2018, 04:17 AM
Replies: 41
Views: 1,726
Posted By jp_jota
Re: asus x555ld not turn on.

the PC9100 have
with AC
pin 1 2.066MOHMS
pin 2 00.42ohm
without AC
pin 1 02.56ohms
pin 2 00.10ohms

R3093 with ac plugin
pin 1 000.1mv
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 02-15-2018, 02:49 PM
Replies: 41
Views: 1,726
Posted By jp_jota
Re: asus x555ld not turn on.

Okay. I will make the measurements in the morning and post.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 02-15-2018, 02:33 PM
Replies: 41
Views: 1,726
Posted By jp_jota
Re: asus x555ld not turn on.

X555ld repair guide
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 02-15-2018, 02:28 PM
Replies: 41
Views: 1,726
Posted By jp_jota
Re: asus x555ld not turn on.

It's okay. I understand and thank
the help. I'm not on board now. but pushing the button or not is the same. just by pressing the button for a while it lowers consumption. when released again it has...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 02-15-2018, 12:49 PM
Replies: 41
Views: 1,726
Posted By jp_jota
Re: asus x555ld not turn on.

only coils to have ohms to the GND is the coils without voltage...
Showing results 1 to 25 of 41

 
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