Asus F556 - identification of the D82034 element after overvoltage

Question

The laptop got damaged after a power surge. Maybe someone has the D82034 layout as in the photo, or part of the schematic with it. 60NB09S0-MB1310

miecho18 · Answer

This is BD82034FVJ. Both the scheme of this album and boardview are currently unreachable.

lisek · Answer

What role would such an A / D converter play in a laptop? This is only an 8-pin, take a piece of paper and a pencil and draw it .. - see where this (D82034) is located and draw conclusions ( ' ') Then compare what you drew with e.g. G547G or ... (TPS2061, G528, ...) Such a system I saw in ____________ Asus F556U (or F) is a new series from k.2015 on Skylake cpu. (6th gen. Intel) U is the low voltage description / F- description that is the FHD matrix

damszelb · Answer

In fact, this DAC8552IDGKR circuit powers the USB socket. I typed him as damaged, because he has a hole (chipping of the housing), but it is not he who will probably be responsible for the lack of switching on. I also found a short circuit between the gate and the source of the M0930M system (counting the second from the power plug). I ordered a replacement FDMC8884 from ConradElektronic. The defect arose as a result of damage to the power supply and the input in the laptop appeared 230V when the laptop was connected to the lan network with cable.

miecho18 · Answer

No DAC8552IDGKR only BD82034FVJ. After such overvoltage, the repair of the plate is impossible, even because of almost certain damage to the laminate.

lisek · Answer

You have a datasheet for this layout (d82034fvj) link
- draw as I wrote and think

Since how you write 230V appeared on the input ? ( which input / output ) (after damage to the power supply) rather start looking for a new disc!

damszelb · Answer

230V voltage appeared on the laptop's power plug. Probably some of the mains voltage has stopped the power supply itself. I have found a short circuit on the M1830M transistor, but the transistor is OK.

boro1234567 · Answer

What is the coil resistance to ground?

damszelb · Answer

Through this coil, next to the M1830M transistor, a voltage of 3.3V is supplied on uP0132P, which I dismantled thinking that he is doing a short to ground. I removed the PJP8704 and PJP8302 service jumpers and took my break. Resistance measurements showed: Point 1 has 1ohm to ground, Z is shorted and 16 has the same amount to ground.

lisek · Answer

Patrz za rozwiązaniem ukł. wej. i chargera na BQ24780S (zał.)/ Link - pokazałeś ten bq780s na swoim foto. w odp. #7 z 05 Kwi 2017 18:44 p.s na płycie od ASUS X751LD ( p.nr.: 60NB06W0-MB1200) REV 2.0 pod i5 za M1830M wstawiani (spotykano na płytach) EMB20N03V Link p.s

damszelb · Answer

I need a hint regarding the points described in the picture 1.16 and Z - what elements on the board are connected with?
In a working board, point Z is 100 ohm relative to mass, and the remaining 1 and 16 do not have such a short to ground.

lisek · Answer

See if you have passage points. 1/16 (meter to ohms) to the pins of the soldered circuit, if so which? _________________ Option used in BQ24780S / BATPRES function with TPS3898 system link

boro1234567 · Answer

A short-circuit test will help you.

Asus F556 - identification of the D82034 element after overvoltage

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