Acer Extensa 2509-C6l8. Auto off 5 Sec.

[lorins_core]

Have a Nice Day to all Badcapsters.

I need a advice to my Repair. Acer Extensa 2509-C6l8
Mobo: Z5WAL LA-B211P (Rev: 1.0) 2014-03-26

Symtoms: if i turn on Processor Fan not Spinning After 5 sec Turn off.

Other : error first Shorted the USB Connector. i'll already remove the USB port

1. i check the voltage.



check the PQ302 (MOSFET MDU1512) Nchannel marked red box. test actual

On plugin addpter( system turn off)
Using Digital Test
S 123=19.59V
G 4 = 0V ?
D 5678= 19.59V

On plugin addpter( system turn on)
Using Digital Test
S 123=19.59V
G 4 = 0V ?
D 5678= 19.58V

First question Here the picture
Source Prove Red the Black on Gnd


Prove Red the Black on Gnd



then the Drain same reading on Source.

second question if the Gate have no supply
maybe this is happen?


but how come (1) why?


i need for advice and Help me to fix this. thanks

[String2016]

Re: Acer Extensa 2509-C6l8. Auto off 5 Sec.

Can you upload schematics please

[lorins_core]

Re: Acer Extensa 2509-C6l8. Auto off 5 Sec.

Can you upload schematics please

here Sir

[lorins_core]

Re: Acer Extensa 2509-C6l8. Auto off 5 Sec.

Follow Up...

[lorins_core]

Re: Acer Extensa 2509-C6l8. Auto off 5 Sec.

Help... pls

[jasko_jacker]

Re: Acer Extensa 2509-C6l8. Auto off 5 Sec.

Mosfet in short ? Post the schematic.

[lorins_core]

Re: Acer Extensa 2509-C6l8. Auto off 5 Sec.

Mosfet in short ? Post the schematic.

Are you Sure Sir? the mosfet is Short?

can you explain me Why Mosfet is Short? for your Respect

here's the Schematic Diagram


Thanks for reply

[lorins_core]

Re: Acer Extensa 2509-C6l8. Auto off 5 Sec.

Have a Nice Day to all Badcapsters.

I need a advice to my Repair. Acer Extensa 2509-C6l8
Mobo: Z5WAL LA-B211P (Rev: 1.0) 2014-03-26

Symtoms: if i turn on System. but Processor Fan not Spinning. After 5 sec system Turn off.

Other : error first Shorted the USB Connector. i'll already remove the USB port

1. i check the voltage.



check the PQ302 (MOSFET MDU1512) Nchannel marked red box. test actual

On plugin addpter( system turn off)
Using Digital Test
S 123=19.59V
G 4 = 0V ?
D 5678= 19.59V

On plugin addpter( system turn on)
Using Digital Test
S 123=19.59V
G 4 = 0V ?
D 5678= 19.58V

First question Here the picture
Source Prove Red the Black on Gnd


Prove Red the Black on Gnd



then the Drain same reading on Source.

second question if the Gate have no supply
maybe this is happen?


but how come (1) why?


i need for advice and Help me to fix this. thanks

Help me to Solve it.

[lorins_core]

Re: Acer Extensa 2509-C6l8. Auto off 5 Sec.

Follow Up Again.

[meritosari]

Re: Acer Extensa 2509-C6l8. Auto off 5 Sec.

I think you should use scale 200V to measure volt on gate PQ302. How could be?

PQ302 its N-Channel mosfet. N-channel need voltage on gate with value vgs is positive (+) than source. pin 123 we need 19V. So, on gate we need higher than 19V. could be 19V+6V. (voltpin4-voltpin123= +). so on gate pq302 usually ~24-25V. And your dmm can't reading properly if you set 20V scale.

[lorins_core]

Re: Acer Extensa 2509-C6l8. Auto off 5 Sec.

I think you should use scale 200V to measure volt on gate PQ302. How could be?

PQ302 its N-Channel mosfet. N-channel need voltage on gate with value vgs is positive (+) than source. pin 123 we need 19V. So, on gate we need higher than 19V. could be 19V+6V. (voltpin4-voltpin123= +). so on gate pq302 usually ~24-25V. And your dmm can't reading properly if you set 20V scale.

Thanks I Try it late and I post the result

[lorins_core]

Re: Acer Extensa 2509-C6l8. Auto off 5 Sec.

Update: Not Yet Done

Unit Statuz: Auto Off 10 sec. CPU Fan Not Spinning

Power Led Indicating if press power on switch Light After 10 sec. Turning Off the light

hints: I already change the PQ302 same value

voltage value plug in the adapter

PQ302
S-123 = 19.5V
G-4 = 24.7
D-5678= 19.5V

PQ303
S-123 = 19.5V
G-4 = 24.7
D-5678= 19.5V

PQ301
PIN1 = 24.7V
PIN2 = 2.7
PIN3 = 19.5V

What Parts Have problem?

[lorins_core]

Re: Acer Extensa 2509-C6l8. Auto off 5 Sec.

Follow up....

[lorins_core]

Re: Acer Extensa 2509-C6l8. Auto off 5 Sec.

Follow up... Again. I have no Idea. Plssss Help