-
For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.Subscribe Now
Search results
-
820-02098 keeps burning resister.
I found part of the problem! I removed U5700. PP5v_S2_MAIN: into Kohm, 0.395 in diode mode PPBUS_AON: into Mohm, 0.480 in diode mode Perhaps u5700 went bad after ISL9240?- Jaybloe
- Post #8
- Forum: Macbook Logic Board Repair Questions
-
820-02098 keeps burning resister.
With UC260 removed: PPBUS_AON: 15.2ohms, 0.027 in diode 5V_S2_MAIN: 19ohms, 0.022 in diode All to ground- Jaybloe
- Post #7
- Forum: Macbook Logic Board Repair Questions
-
820-02098 keeps burning resister.
The closed i measured to 14 ohms was on LC260<000 18.6ohms to ground Whilst inspecting the coils i found out LT000 is almost crumbling apart 100kohm across the pins. @LC260 PPB5v_S2_MAIN&P%VS@TPS_PHASE measure 0.027 in diode mode. @LT000 PP5V_KBDBKLT_ISNS measures 0.579, KBDBKLT_SW2 measures...- Jaybloe
- Post #5
- Forum: Macbook Logic Board Repair Questions
-
820-02098 keeps burning resister.
Thank you!, my apologies for responding so late. "For the future, NEVER let MOSFETs from a buck converter with the Gate floating on air!!!" I will not do that again.. "Q5230 may be burnt now; just in case, check Q5240 too" diode mode measures: gnd-phase1&2: 0.534 CHGR_GATE_Q1-4 have no value...- Jaybloe
- Post #3
- Forum: Macbook Logic Board Repair Questions
-
820-02098 keeps burning resister.
Hi, I've encountered multiple problems. usb-c meter is measuring 5.14v 0.00a PPBUS_AON is 0v and has a 0.66a short to ground when supplied with 1v, it also has a diode reading of .020 with a ohm reading of 14ohms. I'm not in possession of a thermal camera but alcohol reveals nothing. the next...- Jaybloe
- Thread
- Replies: 8
- Forum: Macbook Logic Board Repair Questions