need help identifying a resistor value

[bachir2004]

Can anyone please help me identify the value of the resistor R391.
motherboard is SATELLITE L50-B-25C DA0BLIMB6F0 REV F 5th generation.it would be nice to
upload a schematics if it is possible.

[SMDFlea]

Re: need help identifying a resistor value

I think R391 is 0ohm according to piernov at this thread: https://www.badcaps.net/forum/showthread.php?t=63803

[bachir2004]

Re: need help identifying a resistor value

it is different motherboard,I could not find the right schematics.actual value is 200 ohms,If i cannot find anything i would try with 0 ohm.

[SMDFlea]

Re: need help identifying a resistor value

it is different motherboard,I could not find the right schematics.actual value is 200 ohms,If i cannot find anything i would try with 0 ohm.

Sorry. Is the resistor and cap connected to PQ10, if it is whats the PQ10 marking on top.

[bachir2004]

Re: need help identifying a resistor value

pq10=423A 1P

[on/off]

Re: need help identifying a resistor value

pq10=423A 1P

is it same N-channel MOS like AO6402? confirm with use multimeter, pin 1256 as drain.

Also confirm does R391 connect with gate?

[on/off]

Re: need help identifying a resistor value

There is a big chance is AO6402 as Load switch / Discharge for S5D or MAIND, so if resistor connect to gate, possibly only come from diode charge pump on block regulator 3V/5V RT6575A=3G, the value should be 1MOhm for other rails maybe 100k. confirm! does one leg connect to PD2 or PD3?.

Usually for gate mosfet switching resistor must be pull down with high value approx 10KOhm-1MOhm, for reduce ampere, cause its only signal (volt have no ampere, in my logic mind).

A little confuse, the shape seem as coil ferrite like caps but more dark.

[bachir2004]

Re: need help identifying a resistor value

Thanks for reply everybody.i found other problems in the motherboard related to ram section i will put away and wait for a schematics.