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02-10-2018, 11:56
| #1 (permalink) |
| Major Poster  Join Date: Dec 2016
Posts: 48
Member: 2659345 Status: Offline Thanks Meter: 5 | lenovo tab3 850m schematic or resistor value? this resistor stands between bq24296 sw pin and pm ic pin |
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02-10-2018, 22:37
| #2 (permalink) |
| Major Poster Join Date: Dec 2016
Posts: 48
Member: 2659345 Status: Offline Thanks Meter: 5 | ok resistor problem was solved. Now i cant fix "no sim" problem - there is no power on vsim1 vsim2 lines(simcard vcc) ways between PM ic(mt6328v,cpu (mt8735) and sim holder is ok. ive changed 2pc`s of PM Ic, but there is still no power on vsim. If i send power to vsim from lab psu- nothing happends. Other ways to cpu (vsim rst, vsim clk,vsim io) is ok, and there is voltage on sim holder switch too. So tell me please how does it works? is there is programable LDO in mt6328v or what might be a reason for this malfunction? |
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Linear Mode
