No Power HP1065 Laptop

[ColTom2]

Hi:

I have a HP1065 laptop that I cannot get any power with or without the
battery. I have tested the AC Power Adapter and it seems fine. As far as the
battery I do no know if it's charged or how to test it.

Does this HP laptop require the battery to be installed to use the AC
Power Adapter or can the Adapter be used without the battery being
installed? I have tried the AC Power Adapter w/o battery and still no power.

From what I have been able to learn on the internet it appears that I have
a bad DC Power Jack or Systems Board. Of course I can be wrong about all
this, as I am into a situation that I have never encountered before.
If anyone has any ideas as to how I can test my laptop's DC Power Jack or
Systems Board I would be most appreciative. Or for that matter any other
item that could cause this problem.

Any and all info is welcomed!

Thanks

 

[Paul]

Hi:

I have a HP1065 laptop that I cannot get any power with or without the
battery. I have tested the AC Power Adapter and it seems fine. As far as the
battery I do no know if it's charged or how to test it.

Does this HP laptop require the battery to be installed to use the AC
Power Adapter or can the Adapter be used without the battery being
installed? I have tried the AC Power Adapter w/o battery and still no power.

From what I have been able to learn on the internet it appears that I have
a bad DC Power Jack or Systems Board. Of course I can be wrong about all
this, as I am into a situation that I have never encountered before.
If anyone has any ideas as to how I can test my laptop's DC Power Jack or
Systems Board I would be most appreciative. Or for that matter any other
item that could cause this problem.

Any and all info is welcomed!

Thanks

Is this the machine (Presario 1065) ?

http://h10025.www1.hp.com/ewfrf/wc/...1089&cc=us&dlc=en&lc=en&jumpid=reg_R1002_USEN

If it was that old, I might check the state of the CMOS battery. That is what
runs the RTC clock. On some computers, a weak CMOS battery can prevent
POST. Laptops sometimes package these in shrink wrap tubing, with a two
pin connector that plugs to the motherboard of the laptop. You may be
able to use the part number on the battery, to look up what the normal
voltage is supposed to be.

http://www.christopherlowe.name/wp-...6026-TP600E-CMOS-battery-replacement 0011.jpg

Other than that, your suggestion of a power jack or motherboard failure,
are also possibilities.

Paul

 

[ColTom2]

No it's a HP Pavilion DV1065.

Hi:

I have a HP1065 laptop that I cannot get any power with or without the
battery. I have tested the AC Power Adapter and it seems fine. As far as
the
battery I do no know if it's charged or how to test it.

Does this HP laptop require the battery to be installed to use the AC
Power Adapter or can the Adapter be used without the battery being
installed? I have tried the AC Power Adapter w/o battery and still no
power.

From what I have been able to learn on the internet it appears that I
have
a bad DC Power Jack or Systems Board. Of course I can be wrong about all
this, as I am into a situation that I have never encountered before.
If anyone has any ideas as to how I can test my laptop's DC Power Jack or
Systems Board I would be most appreciative. Or for that matter any other
item that could cause this problem.

Any and all info is welcomed!

Thanks

Is this the machine (Presario 1065) ?

http://h10025.www1.hp.com/ewfrf/wc/...1089&cc=us&dlc=en&lc=en&jumpid=reg_R1002_USEN

If it was that old, I might check the state of the CMOS battery. That is
what
runs the RTC clock. On some computers, a weak CMOS battery can prevent
POST. Laptops sometimes package these in shrink wrap tubing, with a two
pin connector that plugs to the motherboard of the laptop. You may be
able to use the part number on the battery, to look up what the normal
voltage is supposed to be.

http://www.christopherlowe.name/wp-...6026-TP600E-CMOS-battery-replacement 0011.jpg

Other than that, your suggestion of a power jack or motherboard failure,
are also possibilities.

Paul

 

[Paul]

No it's a HP Pavilion DV1065.

I found three manuals that claim to describe disassembly. They're
different versions of the same thing. The usual nice fuzzy
non-descript pictures to work with.

http://h10032.www1.hp.com/ctg/Manual/c00248252.pdf
http://h10032.www1.hp.com/ctg/Manual/c00312379.pdf
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00444244/c00444244.pdf

Since I don't have a reference schematic for laptop power, I don't
know what to expect in terms of problems. The laptop has both
power management (battery charging) and power conversion
functions, so just like a desktop, there are some MOSFETs and
switching components that would be under stress (especially
with the level of cooling available in a laptop).

Paul

 

[ColTom2]

Hi Paul:

I really appreciate your effort to help me in this matter. I also had
found the last URL you listed after my posting to be very helpful.

Tomorrow I am going to try and find someone who can possibly check and
hopefully charge if necessary the laptop battery. If by chance the battery
is dead and can be charged and then installed AND the laptop powered up, it
would then tell me for sure that the problem is the DC Power Jack. If it
doesn't power up with a known charged battery then I feel the assumption
would have to be either the Systems Board or possibly the Power Switch. Most
likely it would be the Systems Board unless I can find out additional info
to the otherwise.

Again I appreciate your responses.

ColTom2

No it's a HP Pavilion DV1065.

I found three manuals that claim to describe disassembly. They're
different versions of the same thing. The usual nice fuzzy
non-descript pictures to work with.

http://h10032.www1.hp.com/ctg/Manual/c00248252.pdf
http://h10032.www1.hp.com/ctg/Manual/c00312379.pdf
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00444244/c00444244.pdf

Since I don't have a reference schematic for laptop power, I don't
know what to expect in terms of problems. The laptop has both
power management (battery charging) and power conversion
functions, so just like a desktop, there are some MOSFETs and
switching components that would be under stress (especially
with the level of cooling available in a laptop).

Paul

 

[ColTom2]

Hi:

After finding the basic procedures for checking out the DC Power Adapter I
have now concluded that it is the Motherboard.

I will transfer all the data from HD to a DVD....

ColTom2


Hi Paul:

I really appreciate your effort to help me in this matter. I also had
found the last URL you listed after my posting to be very helpful.

Tomorrow I am going to try and find someone who can possibly check and
hopefully charge if necessary the laptop battery. If by chance the battery
is dead and can be charged and then installed AND the laptop powered up, it
would then tell me for sure that the problem is the DC Power Jack. If it
doesn't power up with a known charged battery then I feel the assumption
would have to be either the Systems Board or possibly the Power Switch. Most
likely it would be the Systems Board unless I can find out additional info
to the otherwise.

Again I appreciate your responses.

ColTom2

No it's a HP Pavilion DV1065.

I found three manuals that claim to describe disassembly. They're
different versions of the same thing. The usual nice fuzzy
non-descript pictures to work with.

http://h10032.www1.hp.com/ctg/Manual/c00248252.pdf
http://h10032.www1.hp.com/ctg/Manual/c00312379.pdf
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00444244/c00444244.pdf

Since I don't have a reference schematic for laptop power, I don't
know what to expect in terms of problems. The laptop has both
power management (battery charging) and power conversion
functions, so just like a desktop, there are some MOSFETs and
switching components that would be under stress (especially
with the level of cooling available in a laptop).

Paul