Search results

Thanks for the quick response. I really didn't expect that. I do get an image on screen, just no backlight. U7 testing with LCD connected and system on, image on screen, no backlight: Piin 16: 3.329v Pin 7: 1.984v (that is not what I expected here) Pin 9: 3.329v Pin 2: nothing (not what I...

M18x R2 that isn't turning on the LCD backlight. Tried switching GPUs, LCDs, LVDS cables. Found schematics with a search of 'Compal LA-8321P' and found page 24-25 cover LCD baclight, LVDS connector. This doesn't have signs of damage. System functions normal besides this one problem. Any help...

Put it on eBay. Mid 2015 A1398, 15" Retina, 2.2GHz i7, 16GB, New battery, Parts w/Box Check it if you still want it.

Oh well. No real loss, I got it for free because it was water damage to begin with. Guess my shaky hards can't do this work anymore. Thanks for the input.

I didn't have a battery connected, just a magsafe. It wasn't on at the time, is that 12v always present there? Or could I have done damage in another way here.

Crap. It was just a split second, what would go out first? U7100 or maybe u1950?

Have a liquid damaged A1398, Replaced the battery and it would boot from the battery. 27% charged when charger was connected it read 100% and charging with no light on the mag-safe. I was trying to test PP3V42_G3H and my shaky hands bridged two SMDs with my positive lead from my multi-meter...

I should have PQ8304 by the end of the week, I had ordered 5 of them when I ordered RT8202APQW. I was thinking the short was in PQ8304 ( there is no PQ8301 on the Rev3 board I have here, some of the odd colored parts of the schematic have changes from the Rev2, to the Rev3, so I do some guessing...

I put the CPU in another laptop and it worked fine. So I got that going for me. No charger would stay on with this short, and the only, unregulated voltage was 3.3v and, yeah PCH could be dead now. Thanks for the input. I'll post back when I get some progress, or if it is a full dud.

k42jr_mb_r20_er_1112_1822 search for the schematic I'm using (Rev2 is the closest I can find to the Rev3 board I got). ASUS K42JR REV 3.0 - BoardView search will find the boardview, and ASUS TSIC is the viewing software. I tried putting 3.3v into the board from the DC jack, and then had to...