ACER Z1402 on around 10 second and off

[BlueRay]

Checked 19v, 3v, 5v, 10.5v, etc seem ok. i found one problem on switch button has 9.55v.

Try change Q7 and Q57 ic. but problem still exist, any suggestion? does the problem come from EC controller ic?

[gilasenak]

Re: ACER Z1402 on around 10 second and off

Have you solve the problem? Mine also have the same ptoblem.

[qonma]

Re: ACER Z1402 on around 10 second and off

same problem too

[Duranitron]

Re: ACER Z1402 on around 10 second and off

can you please tell us the original problem..so that we can relate.. and what have you done so far...any schematics for this unit..

[SMDFlea]

Re: ACER Z1402 on around 10 second and off

The schematic is already posted - https://www.badcaps.net/forum/showth...ighlight=Z1402

[Duranitron]

Re: ACER Z1402 on around 10 second and off

ok did you check the on of switch? if the switch is open you get 3.3v if its close you get 0v

[bigbily09]

Re: ACER Z1402 on around 10 second and off

Did you solve the problem. I got mine same problem 9v on power switch

[Duranitron]

Re: ACER Z1402 on around 10 second and off

Did you solve the problem. I got mine same problem 9v on power switch

https://www.badcaps.net/forum/attach...3&d=1537151559

check all the mosfets.. switch must be 3.3v when open and 0v when closed..

[piernov]

Re: ACER Z1402 on around 10 second and off

9V sounds ok there.

[lapfix]

Re: ACER Z1402 on around 10 second and off

Did you solve the problem. I got mine same problem 9v on power switch

9V is ok like piernov say : resistor divider .
Check Q7 , R174

[samsung35]

Re: ACER Z1402 on around 10 second and off

check 19v power rail is present or maybe shorted and check the 3.3v and 5v are present if present all if the problem is not exist put the thermal paste and clean the fan if dirty thank u hope u help my suggestion

[SACR]

Re: ACER Z1402 on around 10 second and off

Anyone solve this problem?

[ktmmotocross]

Re: ACER Z1402 on around 10 second and off

Anyone solve this problem?

post your voltage readings(VIN, 3/5VALW, powerswitch)

[SACR]

Re: ACER Z1402 on around 10 second and off

Checked 19v, 3v, 5v, 10.5v, etc seem ok. i found one problem on switch button has 9.55v.

Try change Q7 and Q57 ic. but problem still exist, any suggestion? does the problem come from EC controller ic?

Thanks reply. My problem same like this...

[Orsolino]

Re: ACER Z1402 on around 10 second and off

What is the problm if PWM_IN 3.3v is drop going to 0vdin the picture of screen is problm also.?

[Han404]

Re: ACER Z1402 on around 10 second and off

i found problem same too

[lazybigyan]

Re: ACER Z1402 on around 10 second and off

Everybody has same problem with mine too. Any suggestion or solution do you have? Wait for any response. Thank you.

[vienzen]

Re: ACER Z1402 on around 10 second and off

Anyone who solve this problem? any suggestion?

[lazybigyan]

Re: ACER Z1402 on around 10 second and off

Did you gays check the y2 (32.7khz)? Not done but not any improvement from change y2. So any further movement.