• Updated 2023-07-12: Hello, Guest! Welcome back, and be sure to check out this follow-up post about our outage a week or so ago.

Powerbook 180c startup problem

Ralphieboy

Active member
Hi. I am rebuilding a PB180C.

Screen capacitors have been changed.

The machine boats a SCSI2SD, a custom 10Mo Ram expansion card and a new PRam battery. The main battery has a 1 minute autonomy.

However, each time I disconnet and reconnect the main power supply the machine does not want to boot anymore.

I usually have to reset the power manager and/or perform some voodoo tricks with the battery and power supply and reset button.

Can somebody help me with that?

 

MOS8_030

Well-known member
Just guessing I would say the dead main battery is preventing the PRAM battery from being charged.

 

Ralphieboy

Active member
Unfortunately I don’t think so.

The main battery is not actually dead, it holds little charge (1 minute, maybe less).

In fact I kept it in the machine in order to charge the PRAM battery.

 

MOS8_030

Well-known member
I believe the PRAM battery in these PB's won't charge until the main battery is charged to a certain level.

 
Top