Question about HEWLETT-PACKARD 620 XT964UT Notebook PC

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Power failure hp 620

I wanna the board schematic diagram

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1 Answer

Hp 620 schematic drawing


sounds like its over heating,try cleaning the fan.or it could be the prosser over heating.an easy way of cleaning the fan is,get a hoover and put it close to the fan and turn it on.

Feb 24, 2015 | HP Computers & Internet

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E131175 power board schematic diagram


SAJID asks, 3 years later. .with no inputs on symptoms.
no such thing. HP never publishes trade secrets. sorry. why would they, be silly to. with rabid cloners now.
you can google just like we can,....

might take a week of labor googling just to find zero.
not me, im too savvy to do that.
if the tubes are bad put in new ones if the HV supply is dead
new main board. (many of the parts are made by contracts and the numbers are as a secret, (non JEDEC or JAN numbers etc. ISO)
HP secret #2
is the screen dead? that it, why not give 1 tiny hint?
OSD dead too?
circa 2009 , the year before LED came on line (MFG)
the users manual.
page 25 tells me its CCFL lamps with mercury warning,,,, yup
and all are burned out this old, if used, lots.
20,000 hours is a short life, if you divide by 24,
full time used.
bingo for CCFL tubes.
http://h10032.www1.hp.com/ctg/Manual/c01713051

Apr 02, 2014 | HP LV1561w Monitor

1 Answer

No Power on Hp 620 Laptop


If the battery does not charge then the problem is likely the charger.
If you can borrow a charger instead of buying a new one you can find out for sure if the problem is the inside the laptop its self or the charger.
Remove the battery and hold down the standby button for a whole minute to drain any remaining power in the model. replace the battery , attach the new/borrowed charger lead and see if any activity happens ie, sound, lights...ect. This is the first thing someone does in a repair shop and its to diagnose where the issue is comming from.

Feb 21, 2014 | HP Computers & Internet

1 Answer

Inspiron 620 desktop will not power on. Change out of power cord was done whilst under warranty (7/12-7/13). Purchased 7/13. Warranty is up. Have not tried to power on since August--it powered up then....


A computer will not power on in certain conditions follows

  • RAM Failure. i.e, RAM is not properly inserted into the port, or any dust particle presence in its port, I am sorry to say The RAM is in DEAD condition
  • Mother Board Failure. Any overflow of power enters into the motherboard. motherboard will burnout (due to lightning, Voltage level increasing etc)
  • Power Failure
  1. When the power cord is properly functioned or loose connection
  2. SMPS is under malfunctioning (SMPS Burn out)
  3. Power cords from smps to mother board,HDD,CD drive fail
  4. Short circuits etc
Check it out...

Jan 22, 2014 | Dell Inspiron 620 ST Desktop Computer...

1 Answer

I would like to know if you can supply the schematic diagran for LG32LH20R-MA power supply board E247691


I've the said diagram, but it can't be send to you by this window. It is in PDF.

Apr 30, 2013 | LG Televison & Video

1 Answer

I need schematics for the Phonic 620 powered mixer


I am repairing the same one. Repaired the power supply full bridge rectifier and 15 volt regulator then tried it and the music starts for 1 second before some relay (protection?) disconnects and the music stops. So decided to get the service manual from here - just checking out now, it is for the fan cooled version which is probably the heatsink version I'm working on.

http://elektrotanya.com/phonic_powerpod-620-plus-v1_sm.pdf/download.html

Jan 28, 2013 | Phonic Power Pack 620 PA Package System

1 Answer

Schematic diagram for power supplys LG 60PC1D-AA


I do not have the schematic, but have a testing / troubleshooting guide for the 60PC1D 1st and 2nd generation, which gives some good insight in organization and functionality of the power boards.

This is what we ourselves step on when repairing - LG often does not publish schematics for power boards and sustain boards.

contact us if interested

Sep 30, 2012 | LG 60PC1D 60 in. Plasma Television

1 Answer

C1039 in di 620 power supply


Failure in Memory board according to the service manual all c10** and c11**

Apr 13, 2009 | Minolta Office Equipment & Supplies

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