HP DV6 issue ?

[mcplslg123]

Re: HP DV6 issue ?

If the platform is LX6-just removing the graphics coil will make it uma.
I've not done it. Just read it in some russian forum.

[bianchi77]

Re: HP DV6 issue ?

there are many changes to make before the ones you say, did you do them?
for example:
pg 3 -> remove Rb remove Rc Add Ra
pg 5 -> Add Rd Add Re Add Rc
pg 6 -> Add R77
and so on

Open schematic and search for UMA, then make a comparison between discrete and uma, make the changes you see

What else I should change?

[bianchi77]

Re: HP DV6 issue ?

If the platform is LX6-just removing the graphics coil will make it uma.
I've not done it. Just read it in some russian forum.

board code : DA0LX6MB6F2
REV F

Is it LX6?

[bianchi77]

Re: HP DV6 issue ?

If the platform is LX6-just removing the graphics coil will make it uma.
I've not done it. Just read it in some russian forum.

What's the foot print code for graphics coil ? on which page on the schematic ?thanks

[bianchi77]

Re: HP DV6 issue ?

are those coils ?

[jasko_jacker]

Re: HP DV6 issue ?

Pag 39 PL2,
however it is an attempt, if you want to change the card exactly as in the diagram there are many other changes.
These changes consist in putting or removing resistances, etc.

[bianchi77]

Re: HP DV6 issue ?

Do you mean PL12 ?

[mcplslg123]

Re: HP DV6 issue ?

obviously , he means PL12. He has already attached a pic with coil number.

[bianchi77]

Re: HP DV6 issue ?

Pag 39 PL2,
however it is an attempt, if you want to change the card exactly as in the diagram there are many other changes.
These changes consist in putting or removing resistances, etc.

I removed PL12 and it's running, but when I connected CN2 (LCD), it behaved like before again, does it mean that I need to change all the Resistors setting after removing PL12 ? thanks

[bianchi77]

Re: HP DV6 issue ?

there are many changes to make before the ones you say, did you do them?
for example:
pg 3 -> remove Rb remove Rc Add Ra
pg 5 -> Add Rd Add Re Add Rc
pg 6 -> Add R77
and so on

Open schematic and search for UMA, then make a comparison between discrete and uma, make the changes you see

Where is R101 = Rd and R345 = Ra ??

[bianchi77]

Re: HP DV6 issue ?

Page 11 , where is Rb = R212 and Rd = R226 ?

[jasko_jacker]

Re: HP DV6 issue ?

At this point I suspect that there is a short in another power line, report with multimeter the value of both sides of pl12 in diode mode (without the coil or with a disconnected coil)

[bianchi77]

Re: HP DV6 issue ?

At this point I suspect that there is a short in another power line, report with multimeter the value of both sides of pl12 in diode mode (without the coil or with a disconnected coil)

The value is 0.121V

[bianchi77]

Re: HP DV6 issue ?

How much value should it be?

[jasko_jacker]

Re: HP DV6 issue ?

do the reading on both sides

[bianchi77]

Re: HP DV6 issue ?

do the reading on both sides

A to GND and B to GND ?

[jasko_jacker]

Re: HP DV6 issue ?

yes

[bianchi77]

Re: HP DV6 issue ?

yes

negative wire of multimeter to the ground, diode mode,

one pin of PL12 = Open Line and the other is 0.005V,
==============
positive wire of multimeter to the ground, diode mode,

one pin of PL12 = 0.006V and the other is 0.119V

what's wrong with it ? thanks

[jasko_jacker]

Re: HP DV6 issue ?

like the image or viceversa ?

[bianchi77]

Re: HP DV6 issue ?

like the image or viceversa ?

yes like the image, without PL12, I have removed it