If I remove the VS diode will the laptop power-up and boot?

 

Maybe, if the rest of the circuit is ok and no damaging transients are generated.

 

Thanks for your reply.

 

If the TVS is part of the charging circuit, it's might be okay to operate on battery power.

 

Mr. dl324, Attach is the charging circuit "PD11" . How about if i will the power adapter as the power source coz my battery is defective and not accepting charge anymore.

 

I can see some Zener diodes as the closest thing to a TVS diode. Which one did/will/would you remove?

Why are you thinking of removing it? (Is it shorted?)

 

Mr. dl324, Attach is the charging circuit "PD11" . How about if i will the power adapter as the power source coz my battery is defective and not accepting charge anymore.

The TVS is intended to prevent overvoltage from the adapter connected to the laptop. If you're certain the adapter won't introduce any transients that could damage downstream circuitry; go for it...

Breakdown voltage for the TVS in question is 22.2 to 24.6V.

 

MR. DICKCAPPELS, I intend to remove the Zener diode mark "PD11 (P4SMAJ20A)". It is shorted I want to replace it but I cannot find a store here in the Phils that selli TVS diode. Any suggestion if there is a replacement similar to that.

 

Mr. dl324, I will use HP adapter which is 18.5 V, 3.5 A, 65 W output as my source for this acer laptop.

 

Some laptop supplies are unregulated or have a higher output voltage than specified. Make sure your adapter is actually 18.5V.

 

I will make it certain that it is in 18.5 V and check it before I connect it to laptop. Thanks for your help! I will inform you to what happen next time.