Search results

well no voltage on L7320 and L7310 , so Louis I should try replacing Q7310 AND Q7321 and U7320 all at the same time right?

hey fan spins ! , but no display , or chime , im about to check the cpu related rails.

put 1v on PP5V_S0. What gets hot? = C7710 I remove it and short is gone , im going to replace the U7320 for another one check rails and update what happened after that.

thank you duke tomorrow I will try it ,i was trying to guess what was going to be your answer , I was betting you was going to said to replace the connector , but I miss , I never imagine that I could test the connector like that , now I can check like that anytime im not sure about it on any...

i was getting kinda exited to try something like that but then I check and PPBUS_3GH has a short too , then I inject voltage 1.6v and I find the part of the board that was getting hot , man damn it , one of the screwholes is fucked , I remember when I start taking out the board from the laptop I...

I already try another lcd and same , and I re check again SMC_LID is 3.4v what should be the next step?

hello , im working on this 820-3435 board 11.6 inch laptop , and I was trying to remove this short , but , I already remove all the nets on that line even the conector for the dc inboard , and still I cant get rid of this short. thank you for your help.

thank you guys

PP3V3_S0 = .353 LVDS_DDC_CLK = .589 LVDS_DDC_DATA = .633 I did read with cable connected without cable: LVDS_DDC_DATA = .678 LVDS_DDC_CLK = .678 PP3V3_S0 = .353 I will try to do less stupid things :P I...

Well I think I just start to destroy and sodomize the board , I remove Q9706 and run a wire from pin 4 to PPBUS_SW_LCDBKLT_PWR to check if that will give me the backlight back , but when I power the machine I see light coming from the lcd for less that 1 second all gets white and then go back to...

Ok im going to update my findings , I when and check Q9706 and on pins 3 and 4 I have 12.6v , what this mean that voltage divider is not working? for LCDBKLT_EN_DIV what voltage I suppose to have? R9788 and r9789 match schematic and c9782 has no continuity on its pins , PPBUS_SW_LCDBKLT_PWR have...

i want to add a question LED_RETURN signals what they do?

hello Master Duke thank you for your help , well here is the thing machine not boot all the time on the pc crap booteable disk , is just do it randomly some times, I just see the display and light working like on 3 attemps out of 10 , over all it shows no display or light, if I try a hard drive...

hello guys , I was wondering what should be a fair price for other stores that use us as outsource to repair their boards ?

clean the area and take readings again and now I have 3.4v on booth sides of R5071 still no display or light on the screen when trying to booth

I did the pram reset and is still the same , I test for voltage on R5071 and pin 1 SMC_LID is 0V , pin 2 is 3.4v , wao Louis is right you have psiquic powers. what next? I suppose to have .50v or 3.4v on pin 1 right?

fuck man now im very confuse , machine have a bootable cd of iakos those ones that install mac on pc , and booths from it !!! but without it I have no light on the screen or question mark folder !

ok masters I did replace the part I did replace some water damage components now machine turn on fan spins I hear the chime but... there is no display I do the lamp test and Im unable to see the question mark folder , what should be my first steps to troubleshoot this problem?

:) thank you master

hello masters I have a 820-2936 that needs a u5400 , I have 2 donorboards but booth don't have it any more , my question is :can I use U5410 instead? because that one is present on my donors. what do you think?