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get green light but won't power from ac
turns on from batt
tried replacing ISL already but same behavior
U7000
pin 2 = 16.5V
pin 27/28 resistance 20
pin 17/18 = 3 ohm
Q7085
chgr_agate
pin 4 = 15.5V
pin 1-3=16.5V
all measure ok for resistance
R7085
R7086
R7005
R7080
R7081
its Q7085 not...
those cables don't have any heat tolerance? i know the keyboard cable melts in a second. but i thought the lcd tabs were bonded with some high heat and pressure. well i'll try messing around with some dead air screens first for practice this weekend, if not i guess i'll look into flashing. i've...
yeah i've tried on like 3 different machines over the past year or so and they don't recognize on anything
I was reading on mike'smods where he was reverse engineering a breakout board
http://mikesmods.com/mm-wp/?p=212
I see the main chip is a parade, but his picture of the older controller...
I have some china special LP154WT1-SJAV screens which don't seem to work with anything
anyone know if (and where) the firmware chip i can move over from a broken official A1
no i tried a new keyboard and it does the same thing so its not the keyboard. brightness and none of those secondary functions work, that;s why i need to fix it
I had messed with this before and thought I was done but apparently not (trackpad temp TSOP line bad). Although the keyboard viewer shows every key responding, the fn key doesn't work/register so the fn keys don't do their functions and the keyboard viewer appears different, showing a full size...
io cable off, new lp8550 did no different, ran wire for feedback, still same
you think its the lvds socket? there was a burn there but it was working till now, maybe it finally shorted out?
820-3437 had a little liquid spill. i cleaned and replaced C8317 and ran a wire to LVDS pin 3-4, worked fine for a while then sometimes backlight goes out so I did C7796,
but now some time later its acting up again. seems more like at cold startup, like it takes some time to warm up. should i...
i think i fixed this once before a year ago but it's back again
charger light does turn green but computer won't start, no orange, and no charging
i've followed the 16.8V in to
Q7030
pin 4 1.7 V
pin 5 16.8V
pin 1-3 1.3V
is Q7030 bad or it is the ISL
or i guess i should check the fuse, will...
pulled up the lp8550 and honestly that looks pretty good, when i get back i'll clean the solder and put a new one down
yes Duke 11.2V always on lcdbklt , been testing with a batt, i'll check ac when i get back
not sure what you meant by r0980
had some liquid damage around thunderbolt and backlight driver
cleaned, still image but still no backlight
fuse was reading sketchy so replaced that
saw a small spark (since i was in the dark) on test power on but still no backlight
now PPBUS_S0_LCDBKLT_FUSED reading 11.2V instead of 12v
both...
One of my friends has the first mbp 13" with only 4gb of ram (I didn't believe they even made it until i looked it up). Does anyone know what and where i could get ram chips and stencil for 16gb? also how hard is it to do?
someone else worked on this and did a horrible job
i've tried cleaning up the lvds cuz i really don't want to replace it
i've tried each pin with tweezers and they all seem down fine, either that or the traces are starting to come up and wiggle but seem soldered to the pins
any idea which pin...
when i put U7310 back i get the old behavior, fan+usb turning on and off at least 2 times (is that normal like the 2013+ airs?)
it seems the chip is a little smaller than on the 4924 boards, maybe not fitting right?
looks like some liquid and corrosion did get under Q7310 but only on the pin5 side