Recent content by MLS

Mouser has the part listed (new from supplier) but no info. https://au.mouser.com/ProductDetail/Diodes-Incorporated/PI3USB32224BXEAEX?qs=HXFqYaX1Q2xh6y8T79trwA%3D%3D Part is not on available schematics. If anyone has the ability to name the broken/burned line in the above Pics so I can run a...

Thanks mate Found that part but not pinout or explanation of function. A bit more searching and https://www.diodes.com/assets/Datash...I3USB32212.pdf is the closest thing I've found so far with chip info, so USB 3.1 Mux/Demux (looks like more pins on short ends..). As its a 2 Thunderbolt model...

Hey all :-) Have an 820-00840-A with some liquid damage. There a rather large hole in the board which connects to a part thats not listed on any schematic I can find? Looks to be PI3USB32224BXEAE , can't find pinouts so not sure where to run trace wire. Pics attach and help appreciated!

PPBUS stable 7.23v with Battery connected. pulls a couple more mw with battery.

Checked CHGR_AMON again and reading .030 Must have muted up that reading? Sorry. Noticed when using Bench power its only pulling .008 amps, orange light on.

Thanks for the reply 2informaticos I can't find those resistor numbers on the 820-3435 schematic? Will check traces around U7100.

Last cal for help on this one! Maybe I'm not posting the right stuff? Noob apologies.. U7100 Voltage list with new good ISL Changed fluke batteries in case that was giving my random readings and tried with bench power. very similar stull.. U7100 1 - CHGR_AGATE...

Replaced R7202 as saw a burn dot on it. Burned out again. Replace again with C7202 also, looks like they are both ok now. Still pulsing. Replaced U7100, no more Pulsing :-) PPBUS_G3H starts about 1.5v and drops from there. Went to another board as on a tight timeframe so quickest solution...

Hey mexicoTV been working on another board as on a deadline to get sorted for customer. have checked with another DC board (for a 13?, sits sideways although fine for powering on 11? if that?s the only other option.) and all still pulsing so definitely the main board that?s causing the issue...

Thanks for check in mate, will do what I can in regards to your post and report :-)

Any ideas appreciated :-)

27/28 20.4 ohm

Definitely 0v at R5520 :-(

Oops.. Late night scribing there. Still higher that usual although much less so. Corrected original post. 9 - CHGR_AMON .052-.062 Will check resistance when back at work, Thanks :-)

Thanks for the quick replies :-) will check VCore tomorrow as home now. Where best to measure? PPVCC_S0_CPU pretty sure was 0v SMC_CPU_VSENSEOUT @ R5520 also pretty sure was 0v Many test points are tarnished, nothing eaten through. No spills. The usual " Its ever been wet" from customer, seems...