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Basic Fault Findings for No Power Laptop
(Applicable for other units with the same reading below)
Note:
Always test your charger first and make sure it has a 19v output. Plug it in, if you observe that the charger led has shut off it means that the voltage protection of the charger detect a...
astron Flat tv 14inch
problem :
no werpa
action taken :
bukas ang unit
at visual check up ang board kng may parts cruded or sunog ala naman
so voltage check tayo base pag check voltage may missing voltage ung nakita ko alA OUT resistor
SEE..... Pic
may reading voltage sa kabila line sa...
acer aspire 1
problem :
no display
action taken :
Perform basic tests
External monitor if display comes out
Remove attached Bluetooth/wifi module
Replace w/ known good memory
but same problem no display
now voltage check in board
PLTRST# at pin 22 wifi slot
DRAMRST# at pin 30 DDR slot
all...
For refference
Ipadmin1 icloud problem
cnsya nakalimutan ko na picture sa hello
Tools
Imac or macbook
Adriuno box @
Usbcable
Dcsd cable for changes serial
Procedure how to use adriuno
Open checkm8-a5
Insert usb cable ipad mini sa mac
See picture
Click arrow wait until done...
If done remove...
for refference lng po
samsung A127 no ligth dahil na basa unit
ACTION TAKEN
1,open the unit cleaning using lucker tinner no luck
2, try new lcd no lock parin
3, diode test and tracing gamit ang borneo schematics & hardware sulotion done
shorted capacitor
see the picture
DONE.....
share ko lng vivo y11 NO POWER
ACTION TAKEN:
try to charge Th e unit no raction in usb voltage reading
kaya binuksan ko unit check batt, drain na
then nxt check terminal batt, sa board ng unit d naman shorted at ala uminit...
SULOTION :
diode Testing reading move using digital tester and...
share lng samsung tab t230nu
problem password
may manual hardreset kaso sira home button
kaya ginamitin kuna lng ng freesoftware...
done...
old but gold
thnx for viewing...mga ka pinoytechnician
software : LINK
Download Repair Guide file for ASUS ROG N550JX from below link !
Download Repair Guide file for Asus N550LF Repair Guide from below link !
Download Repair Guide file for Asus N750JV from below
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Model: Hp 15-AY series
Board id ; BDL50 LA-D702P
IssueN : NO WERPA (shortedboard)
TOOLS
technician
Multitester
Screw driver
Hot air
Power suppy
Pc or loptop for view schematic diagram/ boardview
ACTION TAKEN
1. Check charging pin at charger working
2. Nxt open then unit diagnose and view...
mosfet’s on laptop
1.P-channel mosfet
2.N-channel mosfet
We Can identify P-channel or N-channel mosfet with different marking code.
Easy way to identified look at the number of marking code
1. P-channel mosfet
For example
AO4435
to identify the mosfet if N-Channel or P-Channel
use...
Collections and guide for Main Regulator | Charging IC voltage output for testing
Component IC Testing
To effective test IC we need access to schematic or datasheet
based on where the pin is connected we can predict an approximate value in resistance reading pin to ground it should be kilo ohms...
Acer aspire E15-475 No display
tools
hotair
screw opening tools
loptop or pc
RT809F bios programmer
software link
Action taken
Basic trobleshoot
Try external monitor negative
Try ram at lcd negative
Check voltage in ram at mainreg 3v 5v all present
Solution...
Last option flash bios...
Acer aspire E15-475 No display
tools
technician
screw opening tools
loptop or pc
RT809F bios programmer
Action taken
Basic trobleshoot
Try external monitor negative
Try ram at lcd negative
Check voltage in ram at mainreg 3v 5v all present
Solution...
Last option flash bios done......
NOTe...
RT809F Programmer Software free download
RT809F is a Serial ISP and VGA LCD/LED USB Programmer.it is much stable than USB programmers.it can Read and write 8 pin and 16 pins chips those commonly used on pc motherboard,laptop,HARD DISK,LCD/LED TVs,DVD,routers and home appliances.it Supports...
vivo y11 forgot password
TOOLs
technician
pc or loptop
usbcable
twizer
software link....from master modz @FredzyNoy Tested thread
PROCEDURE
open Vivo Qcom Tools
install qualcom driver
then short pinout
insert ubscable
click y11 y21i icon
wait untildone...
sa frp same procedude
password...
Lenovo s10-3 netbook ayaw magtuloy sa os format done via flash bios
board id
ACTION TAKEN
try ibat ibang bootable not done
2nd try ko rin ibang hhd at ssd same not done..
SOLUTION
try ko flash bayot nag done...
TOOLS
Teknisyan
Loptop or pc
biosflasher(RT908f ISP PROGRAMMER)...
1.AWARD BIOS 1short beep
:System normal 2 short beep
:CMOS Error 1 long beep and 1 short beep
:Memory error 1 long beep and 2 short beep
:Graphic card error 1 long beep and 3 short beep
:AGP error 1 long beep and 9 short beep
:Memory Error Continuous long beep
:Memory not correctly...
Oppo F9 CPH1823 Hang up
action taken
try formar via mrt done.. but same status
try formet via hyrda done..but same status parin
SOLOTION
fullflash the unit via mrt dongle...
logs...
Make Sure your Mobie have power...
>>> Searching Mobile Com Port...
Get Mobile Port: COM55
>>> Driver...
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