Search results

When I first start OSX, headphones work and is detected in audio device properties. If I disconnect and reconnect them, they are no longer detected in audio properties. If I restart the machine while the headphones are plugged-in they will work again. And I can reproduce it every time. Not a...

Hello, I have strange problem with audio jack. When I start the machine headphones work. If I unplug and replug them, they stop working. If I restart the machine they work again. Speakers work normally. Audio codec? REF line? Please advice how to proceed. Thanks!

SMBUS_SMC_5_G3_SCL - 3.42V / 585 diode mode SMBUS_SMC_5_G3_SDA - 3.42V / 585 diode mode R7100 is good. without LIO still 8.2V

LIO flex removed, SMC_ONOFF_L trigged PM_PWRBTN_L pulses PM_SLP_S5_L pulses PM_SLP_S4_L pulses PM_SLP_S3_L pulses PM_SLP_S0_L pulses stil no fan spin

Hello friend, ppbus_g3hot - 8.2V PP3V42_G3H - 3.42V PP5V_S5 - 0V PM_SLP_SUS_L - 0V 3V3_SUS - 0V PM_RSMRST_L - 0V PM_PWRBTN_L - 0V SMC_ONOFF_L - 3.4V SMC_RESET_L - 3.1V Please advice how to proceed. Thanks!

PM_SLP_SUS_L - 3.33V 3V3_SUS - 3.33V PM_RSMRST_L - 3.03V PM_PWRBTN_L - 3.42V SMC_ONOFF_L - 3.4V nothing connected except board, fan, I/0 cable, I/o board

https://www.youtube.com/watch?v=9JcmJ6LHdWA&t=777s I tried to follow this, was looking like the same, but after smc reflow, still not fix. I get 3.11V on SMC_reset_L PP3V42_G3H present. PP5V_S5 present. PP5V_S0 - 0V solutions?

Do you have solution for fix it?

U7000 lines CHGR_ACIN - 1.08V SMC_BC_ACOK - 0V CHGR_AMOR - 0V CHGR_BMOR - 0V CHGR_LDO_VDDA - 4.8V CHGR_LDO_VDDP - 2.62V

CHGR_LDO_P5V0 is confirmed. P_in witch one? I don't find just that line. are those capacitor near the CPU?

P_IN - 0V ACIN - 0V ACOK - 0.07V CHGR_BMON - 0V CHGR_AMON - 0V CHGR_LDO_VDDA - 4.98V CHGR_LDO_VDDP - 4.98V VCC_VR1 can not find this value

Any solution?

OL on diode mode. Replaced U7701 again and still no BK and OL. Will let it R.i.P. THanks for your help!

Hello, Backlight IC replaced. L7701 - 8.5V BKL_EN -2.8V BKL_PWM -2.8V FB - 0V FB line is not broken. Have continuity. Fuse is okay. R7712-22 - 0 oHms. OL in diode mode. Please advice how to proceed. Thank you!

3V0_AON - 3V PP2V9_SYSCLK - 0V could you please be more specific about voltages for U7000?

Found the problem. Diode was soldered other way around by someone who tried to fix this board previously. Thanks for your help!

Hi, 1. 0V on the charger 2. replaced U3100, now 5V on the charger. U3100 replaced with the same model B01 but from another donor board that had 20V on charger. 3. All big coils 0V. PPBUS_G3H - 0V. P3V3G3H - 0V. 4. Checked for short on all the big coils. L7210, L7230, L7410, L7430 seem to be...

Hi there, Feedback line was missing because the pad was totally destroyed by corrosion (see the picture). Ran a jumper to another pad (see picture 2). Replaced the backlight driver IC. Still no backlight. 8.5V on the coil. Checked BKL_PWM - was low (0.8V). Connected C7711 to pin 2 instead of...

Did you try original Magsafe 2 charger? yes PM_BATLOW_L - 0V SMC_PM_G2_EN. - 3.43V RTC_RESET_L. - 0V PPVRTC_G3H - 3.43V PCH_SRTCRST_L 3.36V

PPBUS_G3H - 12.6V 3V42 - 3.43V SMC_RESET_L - 3.12V ALL_SYS_PWRGD - 0V no pulse PM_SLP_S5_L 0V no pulse PM_SLP_S4_L. 0V no pulse PM_SLP_S3_L. 0V no pulse PM_SLP_S0_L 0.13V pulse L7130 - 12.6V L7520 - 0V L7430 - 0V L3095 - 0V L7560 - 0V L7320 - 0V L7310 - 0V L7330 - 0V solutions? Please help