Re: IdeaPad y510p rev 0.2

need other side also?...

Re: IdeaPad y510p rev 0.2

not working, black screen with fans.

hi need an old bios 74CN35WW(V1.10) plus ec for a Lenovo ideapad y510p (Compal NM-A032 VIQY1 ) rev 0.2

the newer version don't seam to work.

thanks in advance.

Re: Lenovo Yoga 710-14IKB only turns on with AC present



I think its this one (PU301 very bottom left on back of board) 955 20AHRZ W632NB

[url]http://www.alldatasheet.com/datasheet-pdf/pdf/745557/INTERSIL/ISL95520.html[/url]Re: Lenovo Yoga 710-14IKB only turns...520.html[/url]...

Re: Lenovo Yoga 710-14IKB only turns on with AC present

After a bit of digging it looks similar to an older LA-A921P. I think PQ305 and PQ306 are the high and low drivers (on the back of the board) and PQ304 is connected to FF201 from the battery. These are the measurements i get AC, battery and AC+battery.


[B]On AC[/B]

PQ305
1. 8.4v
2. 8.4v
3. 8.4v
4. 10v
5. 20v
6. 20v
7. 20v
8. 20v

PQ306
1. 0v
2. 0v
3. 0v
4. 0v
5. 8.3v
6. 8.3v...

Re: Lenovo Yoga 710-14IKB only turns on with AC present

Yes both of the batteries I have exhibit the same problem.

The 3.3, 5 and 1.05v are on with the AC but none with the battery alone....

Hi guys, I have a Yoga 710-14IKB that will only turn on (cold start) when plugged in. Once turned on I can disconnect the AC and it continues to run and the battery charges fine. Restart on battery is also fine.

If the laptop is switched off and i plug in the power cord the charging indicator LED will come on for a few seconds but then it turns off, i.e. it only charges when switched on.

I did a quick check with a multi-meter and there is no 0v at VCC on pin 8 of what i believe is BIOS ROM (W25Q64FV) when switched off-battery only.

Anyone have any ideas?...

Re: New Members - please post your introductions here

Hello i'm Phil and interested in learning more about computer (PC and Mac) electronics.