Diode readings around U7200 look good but tried replacing it. PPBUS G3H is 12.65V. S5 PGood is 3V, SMC PM G2 EN is present. NO 5v 3v3 REG EN. Did a check with FLIR just in case and that isn't picking up anything hot. Multiple liquid contact areas but not seeing anything with serious corrosion and found some parts knocked off and replaced those.
-
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
3115 No P5v_S3
- Thread starter grmacs
- Start date
Post U7941 voltages.
" NO 5v 3v3 REG EN
-----------
3 - 3.3V"
???
If you consider to write correctly a signal name, will be more easy to avoid confusions.
-----------
3 - 3.3V"
???
If you consider to write correctly a signal name, will be more easy to avoid confusions.
"I had typed it correctly"
Zoom in and check if isn't P5V3V3_REG_EN instead!!!
S3 state is enabled by PM_SLP_S4_L signal.
You need to get 3V3_SUS first.
Zoom in and check if isn't P5V3V3_REG_EN instead!!!
S3 state is enabled by PM_SLP_S4_L signal.
You need to get 3V3_SUS first.
I"m an idiot I don't know why I didn't follow same startup sequence as the A1502/1466/1398 boards. 0V at C1802/3 and realized I was missing PPVRTC_G3H near there but it was present on U2600 the pass through line was damaged next to C2233 so jumpered and now I'm getting a short fan spin and stopping.
Then you have problems with some I/V sensor.
Check first resistance between pins 17/18 and 27/28 of U7000.
Check first resistance between pins 17/18 and 27/28 of U7000.
Then reball it; avoid to get it back in warranty.
It had bad solders for some sensor lines.
It had bad solders for some sensor lines.