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Search: Posts Made By: techtiger
Forum: Troubleshooting Laptops, Portable, and Mobile Devices Yesterday, 07:09 AM
Replies: 1
Views: 44
Posted By techtiger
Re: HP ProBook 6570b Doesn`t turn on

check pin 124 92 99 60 75 41 4 and Bord ID ?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices Yesterday, 06:53 AM
Replies: 14
Views: 236
Posted By techtiger
Re: Toshiba A200 Equium 6050A2109401-MB-A02 dead no power

you have to test with out any power test again ! , do you solder iron to remove Q504 if so remove and put a jumper from pin 123 to 5678 & uplode a pic before power up
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-25-2020, 01:02 PM
Replies: 14
Views: 236
Posted By techtiger
Re: Toshiba A200 Equium 6050A2109401-MB-A02 dead no power

That’s fine now come up with the voltages
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-25-2020, 10:33 AM
Replies: 14
Views: 236
Posted By techtiger
Re: Toshiba A200 Equium 6050A2109401-MB-A02 dead no power

what is the output voltage only the battery terminals remove the adapter and power with battery? voltage on all legs of Q503 ? clean top of the U500 & Q503 uplode pic again I see a hole on top of the...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-24-2020, 01:33 PM
Replies: 14
Views: 236
Posted By techtiger
Re: Toshiba A200 Equium 6050A2109401-MB-A02 dead no power

Are you familiar with testing SMD components with a multimeter? Can you remove the Fet Q504 and tested out of the MB, Do you have a solder gun? If you’re getting 19V from the adapter that should be...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-24-2020, 08:24 AM
Replies: 14
Views: 236
Posted By techtiger
Re: Toshiba A200 Equium 6050A2109401-MB-A02 dead no power

35V on Drain side of Fet Q504 is too high do you have another adapter to test ?
More than +20V is too high, you have to test the Fet for any short
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-22-2020, 12:45 PM
Replies: 9
Views: 140
Posted By techtiger
Re: HP Pavilion 17F - No internal display, but external works.

ok then find a +3V line & put a jumper to the pin 39 40 LVDS for a test uplode pic near the LDVS conn before
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-21-2020, 03:01 PM
Replies: 9
Views: 140
Posted By techtiger
Re: HP Pavilion 17F - No internal display, but external works.

Ok that’s good now trace back U2 IC in the MB this IC converts +3V to +3VLCD_CON Via PCH Signel on pin 4/5 you should get +3V pin1 if everything is working fine Voltage should be 3.3V it will cross...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-21-2020, 02:31 PM
Replies: 9
Views: 140
Posted By techtiger
Re: HP Pavilion 17F - No internal display, but external works.

as for the Schematic pin 1 & 2 should be +19V pin4 3.3V PIN40 3.3V for the moment leave RTD2136R
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-21-2020, 01:01 PM
Replies: 9
Views: 140
Posted By techtiger
Re: HP Pavilion 17F - No internal display, but external works.

LVDS Conn pins you have check are not correct test voltage on pin 1 4 40
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-21-2020, 11:49 AM
Replies: 8
Views: 185
Posted By techtiger
Re: Razer Blade RZ09-01953 suspect faulty bios, ordered chip but not the same

Suppose your bios is corrupt when the previous owner started flashing bios that doesn’t mean the bios chip is Dead, you just need a good working bios bin And a special tool to do this job , You have...
Forum: Schematic Requests ONLY! 05-21-2020, 06:18 AM
Replies: 2
Views: 43
Posted By techtiger
Re: VAQ10 LA-9771P Dell Precision M4800

Tkanks alot SMDFlea I hope you and your family are safe and well
Forum: Schematic Requests ONLY! 05-21-2020, 06:13 AM
Replies: 2
Views: 95
Posted By techtiger
Re: Compaq presario CQ56 With Power Issue

[QUOTE=manuel.it.solution;962922]please I have these presario CQ56 With power problem,When I plug inn then charger the power jack led does not come on and i don't know what to measure first

Mobo...
Forum: Schematic Requests ONLY! 05-21-2020, 05:50 AM
Replies: 2
Views: 43
Posted By techtiger
VAQ10 LA-9771P Dell Precision M4800

Hello all
I need Schematic of Dell Precision M4800
Mob VAQ10 LA-9771P
thanks in Advance
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-26-2020, 02:12 AM
Replies: 9
Views: 345
Posted By techtiger
Re: LA-B843P Rev 1 2beeps

Trace it down to SOC and put a jump Voilà
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-06-2020, 10:00 AM
Replies: 3
Views: 275
Posted By techtiger
Re: lenovo ideapad 110 no power

what is the SIO u11 nuvoton ID number which pin the connect to PWR BTW ?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-06-2020, 09:55 AM
Replies: 31
Views: 816
Posted By techtiger
Re: Working on a dell LA-9104P Motherboard

dont remove randomly parts if you need any help as piernov instructed




check the resistance to GND on PR102 make sure not short SGD on 1st 2 Fets ( check resistance 1st 2 Fets PQ100/101 )...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-27-2020, 07:37 AM
Replies: 4
Views: 130
Posted By techtiger
Re: HP mini 210 - no image, no VCC_CORE

Check PQ43 no short S D G & +VIN
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-26-2020, 12:18 PM
Replies: 4
Views: 130
Posted By techtiger
Re: HP mini 210 - no image, no VCC_CORE

Check pin 4 5 6 7 17 19 32 PU1015
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-25-2020, 12:40 PM
Replies: 10
Views: 295
Posted By techtiger
Re: Hp omen 15-DC. 3.3v ALWS only 1.36v !!! 5v present!

Remove one Pad of coil 3ALWS and check the Voltage again, check the resistance to ground out put side of 3V line, Upload the Schematic or MB ID ?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-22-2020, 12:41 PM
Replies: 23
Views: 939
Posted By techtiger
Re: Dell inspiron 3521 la-9104p dead

it's better you open a new Thread if you could, for 3/5VALWP you need Enable from SIO voltage on pin 6 20 on PU100 and you need +PWR SRC to PQ100 PQ101 & what is the resistance PL102 PL101 ?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-21-2020, 07:16 AM
Replies: 33
Views: 769
Posted By techtiger
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-21-2020, 12:04 AM
Replies: 5
Views: 192
Posted By techtiger
Re: Ripped bios chip pad on board

Yep it’s still possible to bring back it alive but we need the Bord ID Schematic a close up pic with a loop try and find one of them or the Schematic
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-19-2020, 03:33 AM
Replies: 33
Views: 769
Posted By techtiger
Re: HP Pavilion 15-P (Y11A) no power, S5_ON not present

Set your multimeter to the highest resistance range available. the Greek letter omega (Ω), or sometimes by the word “ohms.”
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 03-17-2020, 11:59 PM
Replies: 6
Views: 242
Posted By techtiger
Re: Dell Latitude E5440 "no power", flashing Power led continuously [long blinks]

flash Bios back up the Old bump, try and reset Bios battery
Showing results 1 to 25 of 500

 
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