Search results

DP_INT_HDP is not pulsing

unforunately DP_INT_HDP is not accessible (hidden behind cpu glue). I resoldered the connector 2 times now and double checked the contact but i got the same result. Unforunately i dont have a known good LCD for this model...

*PP5V_S0SW_LCD

Hi, i got a A1534 (820-00244) that came with no backlight. When I opened it i saw that it was opened before and the lcd connector on the board was ripped off and backlight fuse was replaced. So Replaced the lcd connector then i got an image but no backlight. After some measurements around U8401...

WIFI is working now. Thank you for your help! :-)

I changed L3404 now MINI_CLKREQ_L is low. I don't know how i measured PP5V_WLAN 5v... maybe i measured PP5V_WLAN_F instead by taking the wrong pin of L3404...

MINI_CLKREQ_Q_L is 2.5V

MINI_RESET_CONN_L and MINI_CLKREQ_L:3.3V PCIE_MINI_PRSNT_L: 0V C3430/31 are good and so is L3401 (0 ohm resistance between pins 1 and 2 and between 3 and 4 and also OL between pins 1 and 3).

And I already tried another screen in case the plug is faulty. But WIFI is still not detected...

Good evening, i have a problem with a 17" MBP from 2009 (810-2610). WIFI is missing on this board (macOS shows "No hardware installed"). Everything else (camera, etc.) works fine. PP5V_WLAN is present and the connector seems good. I already tried a known good wifi-card.

Okay bad luck for me, thank you for your help :)

Forcing th board in DFU worked. Maybe the keyboard is defective. But unforunately I can neither restore nor repair. It throws an "No such directory or file (NSPOSIXErrorDomain)" error...

yes i tried dfu again but it does not work...

Ok, after removing UE501 (there was some corrosion on it I didn't see) the 1V25 rails are normal and I got 20V, 0.22A and stable PPBUS_AON on DC power.

Hi, I got an M1 Macbook (820-02020) with some strange behaviour. It suffered from liduid damage around UF400, Touchpad connector, LP9000 and CP870. I removed shorted Cap CL053 and replaced UF400. Behavior if DC only plugged: Taking 5.23V, 0.12A (somtimes jumps up to 0.6A for a second)...

Yes, all terminals ae looking good - no corrosion or dust or any damage. So I should start replacing the CD3214 Chips...?

Sorry, you asked for diode mode measurents. Here they are: USBC_TA_CC1 0.031 USBC_TA_CC2 0.024 USBC_TB_CC1 0.014 USBC_TB_CC2 0.197 USBC_XA_CC1 0.031 USBC_XA_CC2 0.007 USBC_XB_CC1 0.004 USBC_XB_CC2 0.025

Thank you for your reply :-) The input fuses are all good. For the CC1/2 pins i got the following mesurments (in ohm): USBC_TA_CC1 19.0 USBC_TA_CC2 15.0 USBC_TB_CC1 7.7 USBC_TB_CC2 127.9 USBC_XA_CC1 19.3 USBC_XA_CC2 4.1 USBC_XB_CC1 2.0 USBC_XB_CC2 15.0

Hi there, after some time of inactivity i'm back :) I got some problem with an MBP 2017 4TBT here. It doesn't show any signs of liquid damage but was obvisously opened before. First step was checking amp and voltage with ampeter but there the charger does not even turn the ampmeter on - on...

Replacing U6550 solved the problem ?? Thank you very much!