3 Can this system still be repaired or it is a throw away?
I will try to tell all the information I have:
I bought system off ebay for display spare parts, once I changed the display and I decided to test the logic board of the system and the following things happened
1) there is a 45w power supply green led
2) connecting the battery - it is recognized and recharged
3) by pressing the start button the system starts and after 2 seconds it turns off and after 2 seconds it turns on again, after that the system is started only that the display does not show anything it is black, I also tried connecting the external display - nothing
4) I measured the voltage on the components that appear to be in the screen power supply chain on the diagram, they are all at 0v
the motherboard is 820-2530
I want to know if the gpu is dead, if it is still repairable in the sense that I would use it without its screen - via DP cable with external monitor so I don't care that the notebook display doesn't work
Update (12/28/2022)
crwdns2934109:0crwdne2934109:0
crwdns2944067:025crwdne2944067:0
do you have the boardview and schematics for it
crwdns2934271:0crwdnd2934271:0 daniel crwdne2934271:0
@tech_ni yes how i can add them here ?
crwdns2934271:0crwdnd2934271:0 Game FullHD crwdne2934271:0
@Game FullHD i have them i was just asking if you did
crwdns2934271:0crwdnd2934271:0 daniel crwdne2934271:0
@tech_ni yes i have , so what we can check to say if gpu is dead or no ? consider that now I can only connect the power supply , when the power supply is connected there is a green light but it does not start , probably because it is a 45w which is not enough so I now take the measurements in s5 state
crwdns2934271:0crwdnd2934271:0 Game FullHD crwdne2934271:0
@Game FullHD do you have 3v3 on pins 2,3,4 of the lvds connector
crwdns2934271:0crwdnd2934271:0 daniel crwdne2934271:0
crwdns2934275:020crwdne2934275:0