compaq presario1600 not booting no power.. Please advise

Tested the power brick and I have 19 volts coming out of it and theres
a green light on it. When I plug it in my PC I have now power to boot
no green lights anything.. Any ideas ???? Compaq 1600 i laptop

Is the mother board shot .... the inverter board gone...

Is there any test points on the board I can test to see if the board
is getiing any voltage?????

Maybe the connect that recives the DC voltage from the brick???


Please advise

No green lights at all implies that no power is getting to the motherboard.
Based on experiences to date with HPaq notebooks, my strictly wild assed guess
is that the power connector became detached from the motherboard.

.... Ben Myers

On Wed, 15 Mar 2006 21:35:29 GMT, lid (belschner) wrote:

Tested the power brick and I have 19 volts coming out of it and theres
a green light on it. When I plug it in my PC I have now power to boot
no green lights anything.. Any ideas ???? Compaq 1600 i laptop

Is the mother board shot .... the inverter board gone...

Is there any test points on the board I can test to see if the board
is getiing any voltage?????

Maybe the connect that recives the DC voltage from the brick???


Please advise

Ben Myers wrote:
No green lights at all implies that no power is getting to the motherboard.
Based on experiences to date with HPaq notebooks, my strictly wild assed guess
is that the power connector became detached from the motherboard.

... Ben Myers

On Wed, 15 Mar 2006 21:35:29 GMT, lid (belschner) wrote:

Tested the power brick and I have 19 volts coming out of it and theres
a green light on it. When I plug it in my PC I have now power to boot
no green lights anything.. Any ideas ???? Compaq 1600 i laptop

Is the mother board shot .... the inverter board gone...

Is there any test points on the board I can test to see if the board
is getiing any voltage?????

Maybe the connect that recives the DC voltage from the brick???


Please advise


....or if it got wet, the main fuse has blown.

Q

A true test of a power supply is under load.
Can you get 19 volts and still have a bad power supply under load.
Not normally
Can it occur
Yes
For various reasons
Do I believe your is bad
I only believe it needs to be tested
Where do you get a load.
Two 12v 15watt automotive bulbs make a good load.
Or 2 (8 ohm) load reasisters from radio shack
See if you have not only 19 volts but also check the current draw

19/16=1.5 amps for the resitors
and you can figure it out for the bulbs yourself.


A switching voltage supllies works as follows.
It takes 110 or 220V AC
Rectifies it
Switches it off an on at a frequency of 100,00 cycles or so
Through a transformer
That does not need to be very large for this frequency


Then the output or outputs are rectified again
at a voltage that is little above the needed supply


A sensor at the output is fed back to maintain the 19Volts
It can give 19 volts at a no load condition
Actually there is a small loading resistor
If the current tries to increase and maintain the 19v and the regulator is
faulty
than it will give nilch under full load

Green light may will fail on brick depending on how it is wired

You can work from the wall to the laptop
Or the other way
Your choice
"Quaoar" wrote in message
...
Ben Myers wrote:
No green lights at all implies that no power is getting to the
motherboard.
Based on experiences to date with HPaq notebooks, my strictly wild assed
guess
is that the power connector became detached from the motherboard.

... Ben Myers

On Wed, 15 Mar 2006 21:35:29 GMT, lid (belschner) wrote:

Tested the power brick and I have 19 volts coming out of it and theres
a green light on it. When I plug it in my PC I have now power to boot
no green lights anything.. Any ideas ???? Compaq 1600 i laptop

Is the mother board shot .... the inverter board gone...

Is there any test points on the board I can test to see if the board
is getiing any voltage?????

Maybe the connect that recives the DC voltage from the brick???


Please advise


...or if it got wet, the main fuse has blown.

Q

19/16=1.1875
Last post the math was bad
Well I am not Einstein
"metronid" wrote in message
. ..
A true test of a power supply is under load.
Can you get 19 volts and still have a bad power supply under load.
Not normally
Can it occur
Yes
For various reasons
Do I believe your is bad
I only believe it needs to be tested
Where do you get a load.
Two 12v 15watt automotive bulbs make a good load.
Or 2 (8 ohm) load reasisters from radio shack
See if you have not only 19 volts but also check the current draw

19/16=1.5 amps for the resitors
and you can figure it out for the bulbs yourself.


A switching voltage supllies works as follows.
It takes 110 or 220V AC
Rectifies it
Switches it off an on at a frequency of 100,00 cycles or so
Through a transformer
That does not need to be very large for this frequency


Then the output or outputs are rectified again
at a voltage that is little above the needed supply


A sensor at the output is fed back to maintain the 19Volts
It can give 19 volts at a no load condition
Actually there is a small loading resistor
If the current tries to increase and maintain the 19v and the regulator
is faulty
than it will give nilch under full load

Green light may will fail on brick depending on how it is wired

You can work from the wall to the laptop
Or the other way
Your choice
"Quaoar" wrote in message
...
Ben Myers wrote:
No green lights at all implies that no power is getting to the
motherboard.
Based on experiences to date with HPaq notebooks, my strictly wild assed
guess
is that the power connector became detached from the motherboard.

... Ben Myers

On Wed, 15 Mar 2006 21:35:29 GMT, lid (belschner) wrote:

Tested the power brick and I have 19 volts coming out of it and theres
a green light on it. When I plug it in my PC I have now power to boot
no green lights anything.. Any ideas ???? Compaq 1600 i laptop

Is the mother board shot .... the inverter board gone...

Is there any test points on the board I can test to see if the board
is getiing any voltage?????

Maybe the connect that recives the DC voltage from the brick???


Please advise


...or if it got wet, the main fuse has blown.

Q