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This board has been to another shop, apparently they just cleaned it but didn't do any board repair.
5.23v on the amp meter and 0.000a.
Values in parentheses (diode mode)
PPBUS_G3H 1.2v and for about 10 secs drops down to 0.9v before looping back to 1.2v rinse repeat (0.460)
PPDCIN_G3H 5.12v...
I need a replacement iPhone SE PMIC but can't find one anywhere. Is the one for the 6S/6S+ that you sell compatible with SE do you know? 6S part number is 338s00155-a1, SE part number is 338s00170-a1. Many thanks.
I repaired someone's MacBook Pro for them and it was ready for collection in April. They have been fobbing me off for 8 months now without payment or collection!
Does anyone in the UK know what the law is with regards to claiming ownership of repaired but uncollected items? Also, in general...
This board has been in with me before. I've replaced a few bits on the charging circuitry including the U1700. Also had a lot of corrosion from water damage on the underside of the board and I had to make a couple of jumpers on PP3V42_G3H at C4903, C4908 and C4902.
It has been running fine for...
This board gets no green light from the charger. PP18V5_DCIN_FUSE goes from 0.3v to 1.8v then back down again. Q7085 gets quite hot. I replaced it but it made no difference. Advice on how to proceed would be greatly appreciated.
About halfway through startup a horizontal narrow band of colours appears about an eighth of the way from the top of the screen and then it reboots. A workshop I use for iPhone board repairs helped diagnose it over the phone and after disabling AMD GPU and seeing it work on the slow Intel GPU...
PP3V3_S5_REG is showing 3.3v at C7523 and C8030. I tried replacing U8030 to no avail. No shorts around U8030, all resistors are showing corrector values. I'm not sure where to look for the cause at this point. There are signs of water damage around the trackpad, but someone else has had a go at...
There is a short on PP3V3_S4 and when I put power into the circuit heat is coming from the area of C2953. I removed all the capacitors on that side of the board and the short is still there so I'm assuming it's coming from U2800 on the other side of the board.
Can anyone please give me any info...
Getting 1.6v on CHGR_CSO_N, CHGR_BGATE, CHGR_CSO_P
0v on CHGR_BMON
0v on CHGR_AGATE
Replaced U7000 once and it burnt out and I lost the pad on CHGR_CSO_N so there is a now a jumper from that pin of U7000 to C7050.
Hi guys!
I have a motherboard which has apparently been to another repair shop but they couldn't do anything with it.
No charging light is the issue. Works fine on battery though.
CHGR_CSO_P, CHGR_CSI_P and CHGR_CSI_N are only showing 1.2v.
CHGR_VCOMP and CHGR_ICOMP 2.8v (is this right?)...
Hi all, I am new to board level repair but working hard on the learning curve and would like to give many thanks to Louis for his videos.
I bought an 820-2936-A board and had green + orange light with magsafe and battery plugged in. I then decided to write down some values of U7000 to cross...