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PPBUS_G3H was shorted to ground on c7375. I replaced the shorted cap. The shot was gone, but F7140 pin one has 8.6v while pin2 is 3.4-4.3v. No fan spin, u7100 is a bit warm, I replaced it, still not turning on. Still same behavior on f7140

The resistors around UB260 were corroded, I replaced rb295,rb294,rb290,rb299,rb297,rb292,rb29b,rb298,rb293,rb262,rb29c,rb261,rb29a,rb296,rb265,rb260,d3100r. All of this resistors were corroded and I replaced them from a known good board, still 5v sometimes 20v but no current. So i decided to...

PPBUS_G3H IS not stable. 12.6b - 3.5v back to 12.6v PPBUS_G3H is pulsing PP5v_s5 is pulsing

The board looks very fresh, I decided to restore via configurator, during the process of restore, an apple logo came and went back after 3sec. The restore was successful on the configurator laptop. The padlock came up. After the pad lock came up, the laptop showed apple and then showed...

It’s was brought from a technician that couldn’t fix it. What I observed was, uf400 was replaced. To to clear my doubts about weather is the right one or not, I decided to replaced it with another uf400 from a known good board. But still not drawing 20v. So I decided to power it and put it on...

It came with 5v earlier and I discovered that u3200 has a low resistance on PP3v3_UPC_XB_LDO. I replace u3200 and it worked 20v. So the system was retuned today with 5v again. But the s5 rails are missing PP5v_S5_LDO-0v PP3v3_s5- 0v No short on nand voltages PPBUS_G3H- 12.28...

It came with 5v earlier and I discovered that u3200 has a low resistance on PP3v3_UPC_XB_LDO. I replace u3200 and it worked 20v. So the system was retuned today with 5v again. But the s5 rails are missing PP5v_S5_LDO-0v PP3v3_s5- 0v No short on nand voltages PPBUS_G3H- 12.28...

If I close the lead to sleep and I opened it before the fans stops and it will wake and work normally But if I close the lead and I wait till the fan stops, it wount wake immediately, some time it will not even wake at all. It will just restart with kernel error message and the message is...

All trackpad voltages are present but I can’t measure when trackpad is connected. Pls what can I check

PPBUS_AON-20.5v PP3V8_AON-3.80v PP3v3_AON-3.294 Pls what next should I post

The fan spins normally and the CPU gets little hot. but no display no sound. 20v with charging current It’s not water damaged, no corrosion.

PPBUS_AON_3V3S2_VIN_ISNS was shorted to ground. I passed 3v through it and uc710 was getting hot, I replaced it, the shot was gone but it’s still not turning on. And it’s drawing charging current.

It’s a water damaged system, it has been given To another technician before it got to me. Both ports drawing 20v and the charging sound.

The system is working but no sound. I use the mic to record, there was signals but no sound when playing out. Pls help I have check around ur600 and ur630 no corrosion no shot. Then ur500 looks good.

The system came fresh and pp3v3_g3h voltage is low 2.6v instead of 3.34v No PPBUS_ G3H I found a low resistance on c7081, I ran a current throug it. Same c7081 gets hot. I replaced it and the resistance came up. But still 5v. I proceeded to replace u6903 and D6902. It draws 20v and immediately...

The system works on battery only draws 20v on charger but no boot Battery is not charging even with 96watt charger C7020 resistance is 0.438 Q7065 not shorted and looks good Ppbus on F7000 with battery is 10.50v With charger 12.46v What can i check next ?

The board draws 5volts 0.0450A PPBUS_G3H=12.53V PP3V8_AON=3.8V PP1v8_S2=0.4v PP3V3_S2_UPC=0.5V P3V3S2_SW=0V resistance is 0.429 PP5V_AON=5V PP5V_BSTLQ_VOUT_SPMU=5V PP3V8_AON_SPMU_ISNS_VIN=3.8V PP1v25_S2=0v resistance 0.275 I have inspected it under thermal camera nothing get warm.. Logic board...

After disconnecting and reconnecting j5150 it will draw charging current and it will charge the battery, but after a while like 5 minute, it’s will stop drawing charging current and withdraw the charging sign on the battery,but there will be 20v and the system will be working. But no charging...

PPBUS_G3H-12.33 pp3v3_G3H- 3.2v PP5v-G3S- 0.00 PP5vxx_en- 0.00 PP3v3_s5- 0.00

it’s a water damaged system, no deep corrosion on board. Almost all voltages are present except PP5v_s4