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ok, so I went ahead and replaced PPBUS fuse, without C7372(PPBUS _S5_HS_COMPUTING_ISNS) being put on, put a new capacitor on, and it burned it again :/
not sure whats going on there, any ideas?
This board came in for no boot, looked over the entire board, and no signs of liquid or burned caps, super clean, paying close attention I noticed C7372(PPBUS _S5_HS_COMPUTING_ISNS & ground) was burned, took it off and replaced it, still did not boot up, any ideas?
Board has also been...
I also ran a wire from Q9701 (LCD_BKLT_EN) to R9704 LCD_BKLT_PWM
and it turn on then, but that would stay at full brightness at all times.
would this be a faulty U9600?
Have 820-3330 15" MacBook pro,
F9700 - 10.89V on both sides (with battery) , 12.56V With power cord
J9000 pin 38, 39, 40 (20V)
Got image, just no backlight
any ideas?
I have 2 820-4924 both have liquid damage, both ultrasonic cleaned, and both do turn on, and work, except there is no image or backlight,
here are the following readings:
U8339
pin 1: 0
pin 2: 0
pin 3: 0 (gets 3.3v for a few seconds after plug in charger)
pin 4: 0
pin 5: 0
pin 6: 0
pin 7: 0...
I am using a 85watt, and there is a battery plugged, but the battery may be bad,
would the mac come on without the battery with the 85watt?
I can only get it to start with the battery being plugged in, and currently do not have a second battery to test,
Board would not come on at all, Replaced L7770 and now it turns on, but now it turns on, stays on for about 2-5 seconds, then shuts right off,
any ideas?
There was crap by u2600, also around SMC, both replaced, also a few other resistors around U2600 and around SMC, but still the same
thinking about calling this one quits,