Search results

Board had spillage around q5480 and U6903. U6903 was short so replaced 5v 110ma on all 4 ports ppbus 12.3v no obvious shorts. I can get it info dfu but it fails with 0xFAE (4014) with or without battery present. What should I check next?

HI only 5v 0m 12.5v ppbus . spillage around ut360 replaced 3 resistors PPBUS_AON 12.4v PP3V8_AON 3.8v PPVDD_DISP_AWAKESW 0v 0.056v diode mode this should be 0.199 ?. Not sure what to check next any help appreciated

No sign of spillage/damage. Customer said they had just finished installing os and it would not power up again. PPbus is 12.6v I have tried in dfu mode and forced dfu mode but still get amrestore error. SSD voltages present PP1V8_IO_SSD0, PP0V9_SSD0 , PP2V5_NAND_SSD0 on both nand chips.

Hi Macbook came in No spillage with short on PP3V3_S5 after removing and replacing u7800 short is gone. The board draws up to 680ma then drops to 340ma. Chipmunk usb activity led shows activity on usb. but black screen. (also tried known good screen) L8030 1.2V L7960 .95V L7900 1V L8060 1V...

Has anyone got any hd images of around U8600 as some of the components got bumped.

Logic board had spillage around C6907 . L850 was burned so replaced it and U8500 as no PP5V_G3S_ALSCAM. Now getting PP5V_G3S_ALSCAM and present on J8500. I have tried 2 different screen assemblies both webcam not present. I have also checked L8503 and L8502 both read .223 diode reading. U8502...

I have a unit here that J4402 was getting very warm with no display. 20v is getting to the board. it draws 700ma and cpu gets warm but no chime. J4402 had a bit of damage so will replace it. board acts the same with touchbar connected or not. the diode reading on j4402 are all good.

Looks like there was little spillage around q7660. PPBUS_G3H goes between 12.2 and 12.6v. Current starts at .100ma then works to 400ma for a second then drops back to 100ma. Nothing visibly getting warm except t2 which is at around 40c. PP5V_G3S is present. PP5V_S5_LDO = 5v PP3V3_G3H = 3.3v...

There doesnt seems to be any kind of corrosion or spillage on the board. I dont have a known good battery for this but I have by-3200 here connected to bench supply. current at 300ma without battery and goes up to 1.2a then back to 30ma with battery in, same with original charger. U9500 @70c...

I have one of these with flexgates powers up fine. I repaired cable and reassembled . Now it only gets to 200ma - 300ma , cpu gets warm no chime . touchpad vibrates but keyboard light does not come on. I have removed the backlight cable but still the same. I also tried test screen but still...

I have a 820-01949 that had spillage around cd3217 area U3100 had 5v. Replaced U3100 now getting 20v .065, PPbus_G3h is 12.6v . Any ideas where to look next?

No visible sign of spillage. I ran hw monitor and only airport proximity sensor reading high. Diagnostics only says problem with fan. I tried 2 different chassis and both the same. Any ideas welcome.

No sign of spillage on the board that I can see. It draws 5v .31ma . PPBUS_g3h is 1v diode reading .385. I have tried dfu mode but host Mac can not see it. I tried removing U4770 and reprogramming it but still same. I cannot find any shorts on the board.

There was initially 1v on ppbus_g3h swapped out u7000 and getting s0 voltages except no voltage to l7410/20/30. I have PPVCC_S0_CPU 1.07v PPVCCSA_S0_CPU 1.94v PPVCCGT_S0_CPU 0v ALL_SYS_PWRGD PM_PCH_PWROK PM_PCH_SYS_PWROK PLT_RST_L all 3.3v. Tried god bios, still same What else to check ?

I got this board that had small amount of liquid spill. ppbus_g3h was 8.2v after swapping the smc it rose to 8.6v but stays at .05mA. 3V3_SUS = 3.3v PP3V42_G3H = 3.42v RTC_RESET_L = 3.3v PCH_SRTC _RST_L = 3.3v PCH_INTRUDER_L = 3.3v PCH_INTVRMEN = 3.3v PM_BATLOW_L. = 3.3v PM_SLP_SUS_L = .812mv...

I have a 820-00165 no sign of spillage on the board. When charger connected it goes to 370ma then to 20ma twice then stays at 20ma U1950 all pins except 8 pulse twice, pin 8 has 3.42v. U7501 pin 23 - 8.58V pin 12 - 3.3v pin 13 - 2.3v ?? should it be 3.3v? no shorts here pin 22 3.3v pin 29 -...

No sign of spillage on the board. I tried pram/Smc reset several times. After running Unigine valley it reboots and screen is garbled see pic. What is the most likely culprit or where to test first?.

There is no sign of spillage but fan runs fast and some keys on keyboard dont work (Alt) there may be more keys but was trying to boot to external. I have replaced touchpad cable and tested with known good keyboard also. I have tested J4800 in diode mode and all good. I have also tested all...

Board originally was not recognizing webcam , I replaced U3900 as all voltages were present but forgot about clock signal (missing clock signal). Now not getting Keyboard backlight no voltage on enable to U7750 (0v on SMC_SYS_KBDLED), checked trace to smc was good, checked fb resistor and...

I have a liquid damaged board. 5v on usb meter U2800 and U3100 were both bad so replaced them. I now have 20v 35ma. I only have 1v on PPBUS_G3H diode reading .395. R7021/22 were both bad so replaced . Q7030 pin1 = 20v, pin