DA0NE7MB6D0 Rev.D dead

[Pragmatiko]

Hi all,
i have that Sony Vaio VPCEE2E1E series completely dead.
Then only voltage i can see are 19 volt on dc connector.
There aren't 3.3V and 5V

Someone have schematic? I am looking for Rev.D that is is different from Rev.A

Thank you.

[Francisco.s]

Re: DA0NE7MB6D0 Rev.D dead

Hi all,
i have that Sony Vaio VPCEE2E1E series completely dead.
Then only voltage i can see are 19 volt on dc connector.
There aren't 3.3V and 5V

Someone have schematic? I am looking for Rev.D that is is different from Rev.A

Thank you.

Hope this help.

[Pragmatiko]

Re: DA0NE7MB6D0 Rev.D dead

Hope this help.

Hi Francisco i have that and is different from Rev.D

Thank you very much.

[Francisco.s]

Re: DA0NE7MB6D0 Rev.D dead

You are right, I didn't notice it is 3A revision.
Hope anyone could help.

[Pragmatiko]

Re: DA0NE7MB6D0 Rev.D dead

However, i used your schematic and seen at pag 31 that if i force VIN to PU12 at pin 6 it generate 3,3 volt but not generate 5 volt

[Francisco.s]

Re: DA0NE7MB6D0 Rev.D dead

However, i used your schematic and seen at pag 31 that if i force VIN to PU12 at pin 6 it generate 3,3 volt but not generate 5 volt

You need EN1 > 2.4 V (pin 14) in order to get 5 volt pwm output.

[whaldsz]

Re: DA0NE7MB6D0 Rev.D dead

Check npce781 pin13 if it generates a logic HIGH voltage to enable pin14 EN1 PU12 high.

[Pragmatiko]

Re: DA0NE7MB6D0 Rev.D dead

Check npce781 pin13 if it generates a logic HIGH voltage to enable pin14 EN1 PU12 high.

hi thanks,

how it can generates RVCC_ON if that ic (i mean NPCE781) is not powered?

[whaldsz]

Re: DA0NE7MB6D0 Rev.D dead

It is powered from +3VPCU in PU12. Check the pins for voltages - 1,3,4,6,7, 27,32.

[Pragmatiko]

Re: DA0NE7MB6D0 Rev.D dead

It is powered from +3VPCU in PU12. Check the pins for voltages - 1,3,4,6,7, 27,32.

but only voltage i can measure is VA+ 19 volt at pin3 of PQ15

[whaldsz]

Re: DA0NE7MB6D0 Rev.D dead

What voltage do you get at PR156?

Ignore the above question. Can you measure the resistance of PR36? Looks like it is open. Should read 220k ohms.

Or a possibility of short circuit protection.

[Pragmatiko]

Re: DA0NE7MB6D0 Rev.D dead

What voltage do you get at PR156?

Ignore the above question. Can you measure the resistance of PR36? Looks like it is open. Should read 220k ohms.

Or a possibility of short circuit protection.

on PR156 0volt

PR36 220kohm
PR35 220kohm

[Pragmatiko]

Re: DA0NE7MB6D0 Rev.D dead

well, i discovered one thing, if i supply voltage to battery connector motherboard start... an work

[dj_ricoh]

Re: DA0NE7MB6D0 Rev.D dead

the actual connector of the battery?
how much did you supply and on what pins?

[Pragmatiko]

Re: DA0NE7MB6D0 Rev.D dead

the actual connector of the battery?
how much did you supply and on what pins?

PCN7 pin 1 and pin7 11.1V

[whaldsz]

Re: DA0NE7MB6D0 Rev.D dead

What is the gate voltage at PQ15? Voltage of pin 3, 5 of PQ14A?

[Pragmatiko]

Re: DA0NE7MB6D0 Rev.D dead

What is the gate voltage at PQ15? Voltage of pin 3, 5 of PQ14A?

The gate voltage at PQ15 is 19 volt.
I'll check tomorrow about voltage on pin 3 and 5 of PQ14A

[Pragmatiko]

Re: DA0NE7MB6D0 Rev.D dead

voltage at pin 3 and 5 of PQ14A ARE zero Volt

[Am0rPHiA]

Re: DA0NE7MB6D0 Rev.D dead

hey pragmatiko where did you find the 11.v on the board to supply to the battery connector?

anyone solve this issue with the lack of 3.3v on the board? i have 2 boards with the same problem