Re: Powerbook DVI 800 Trouble shooting help

On Jan 7, 9:31 am, "testert...@xxxxxxxxx" <testert...@xxxxxxxxx>
wrote:
On Jan 6, 2:31 pm, "testert...@xxxxxxxxx" <testert...@xxxxxxxxx>
wrote:



All,
I received a free PB DVI 800 from Craigslist and thought I'd try to
get it working. It came with no ram, harddrive, battery, power
adapter or cd drive. I know nothing about the laptop's history. I
bought an adapter and plugged it in. When I power it on, this is what
happens:

1. Power button does not blink or stay blue.
2. The pb makes one short beep then no other sounds.
3. The blue led button under the screen stays constant for 2 secs,
then blinks twice, then stays on for 2 seconds... then repeats.

I tried resetting the PMU which did nothing.

My questions are:
1. When starting with no ram, hd or battery, what should I expect?
2. Does the two blinks mean anything?
3. Should the fan(s) start turning with power?

Any incite is appreciated.
Thank you,

Terry

Thank you all for the advice. I will get some ram and see if I get
any further.

BTW (Don't you hate when someone says that when you are
troubleshooting a problem): The power adapter I got is a Kennsington
rated at 70w. If I leave the pb on in blinking mode, the laptop gets
quite hot. I'm not sure if it's an issue with too much voltage or the
fact that fans have not kicked in.

I'll update once I've added ram.

Thank you,

Terry

Hello again!

I'm making some progress with my Powerbook. I installed 512mb ran and
started it. Now I get the normal Mac startup tone. I noticed the LED
light at the bottom of the screen no longer blinks. In fact it does
nothing. Initially I thought the screen was blank, then I noticed, I
was getting a faint disk with a question mark. I assumed that is
expected with not HD or cd to boot off of. Adjusting the brightness
on the keyboard did nothing. Moving the screen (bad cable) didn't make
a difference.

What can the problem be? My next step is to replace the inverter
board? I also read about replacing the CCFL (backlight) bulb, but not
sure if that is possible with a PB G4 800 DVI.

Am I on the right track?

Thank you,

Terry
.