View Single Post
  #9   Report Post  
Posted to sci.electronics.repair
N_Cook N_Cook is offline
external usenet poster
 
Posts: 5,247
Default HP Laptop power supply output plug

N_Cook wrote in message
...
Colin Horsley wrote in message
news
"Colin Horsley" wrote in message
. au...

"N_Cook" wrote in message
...
Somewhat chewed up, seems to be 7.3mm outside diameter, 9.5mm deep, 5mm
inside diameter , about 0.5mm pin but tip recessed 5mm into body, would

it
be recessed by as much as 5mm ?
Number on ps body
PP012L-E
WASHBOABMXWDR4

Laptop is with owner

__________________

It would be SO much easier to help you if we had the MODEL number!

Colin @ CATronics



Colin @ CATronics





COMPAQ - model #CQ60-307EA is the model in question

The minor, blue covered central lead , i think, was turned back within the
fill of the connector shroud, not connected to the pin, safer leaving
disconnected without any specific knowledge.
Just leaving the polarity of the 2 concentric cylinders taking the 4.74

amp
rating
Just looked at another known Compaq (Compaq Presario 2700EA) and DVM

testing
the simple 2 way DC power connection , nothing on diode range.
no reading on R range one way
but other -2.8M on 30M range , DVM+ to known neagative and chassis ground
-260K on 3M range
and with another DVM
-6M on 20M range
-600K on 2M
-25K on 200K

how universal is that ? if not able to power up with current limited bench
power supply, monitoring voltage.




not found a www ref specifically to that Compaq DC polarity.
Did just DVM the blue lead back to the mains connector and 1.3M regular
resistance back to mains ground pin, nothing showing on any other routes.