HP Laptop power supply output plug

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

Reply to
N_Cook
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I'm too lazy to check the dimentia but this eBay search matches the power supply part number:

No. Someone bashed in the connector on the motherboard. The power supply is probably good. Test it with a volts-guesser.

However, you now have a major project replacing the PCB connector on the laptop end. This usually requires tearing the laptop apart, removing the main board, replacing the connector, reasembling, and hoping that it fixes the problem. I usually bill for about 1.0 to 1.5 hrs for the job. Take lots of photos along the way.

I usually bill for about 1.5 hrs plus the price of the connector.

So is the maker and model number of the laptop.

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Jeff Liebermann     jeffl@cruzio.com
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Jeff Liebermann

Laptop is with owner

Try a look here:-

formatting link

Colin @ CATronics

Reply to
Colin Horsley

I'll try some calculations on the foreshortened image on there but not far off 5mm recessed just going visually. I wonder if they do a splicing kit, to avoid trying to break into the box. Some sort of 5 amp compact connector and a 2 part black rubber formulation and 2-part mould that fits around the cable.

Reply to
N_Cook

The most chewed up area is the cover. 3 connections at the active end, pin and inner and outer rings not connected at the plug. Two leads coming from the supply but are the 2 rings connected to one supply line or just one and which one ?

Reply to
N_Cook

The remnants of the connector had a black covered wire and a blue covered wire going to the cylinder parts of the connector. I don't suppose there is a standard for these sorts of things , but it looks as though the blue one was not connected through to the power supply so just one lead but connected to the inside or the outside cylinder of the connection. This is a pin centre conductor , not a female connector. My guess is the inner surface as then both conductor surfaces are recessed from casual touching anything when disconnected.

Reply to
N_Cook

from the aptopjacks pic then recessed very approx 0.38 the length of the exposed barrel in the skew-on view, which makes it 5.1mm recessed going by the straight on view, so I'll take that as pin tip recessed 5mm

Reply to
N_Cook

Laptop is with owner

__________________

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

Colin @ CATronics

Colin @ CATronics

Reply to
Colin Horsley

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.

Reply to
N_Cook

it

amp

testing

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.

Reply to
N_Cook

I assume the small diameter core wire and central connector pin are for static discharge to ground, when used, not in this particular case

Reply to
N_Cook

"N_Cook" wrote in news:hmll9f$rtr$ snipped-for-privacy@news.eternal-september.org:

....

Some of these supplies use I2C communications to 'tell the computer about the power supply capabilities'. Without the I2C communications, the computer may complain that the supply doesn't have sufficient capacity to charge the computer's batteries.

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bz    	73 de N5BZ k       

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
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bz

Would a data stream be observable on the third wire from the ps at switch on and disconnected from the pc or only after a RTS chirp or something from the pc when connected?

Reply to
N_Cook

"N_Cook" wrote in news:hmm5kc$ale$ snipped-for-privacy@news.eternal-september.org:

I think that the computer senses when a voltage is present on the power jack. I think it then asks the supply 'who are you'. If the supply says 'I am an 85 (or whatever) supply', the computer is happy. If it doesn't reply or says 'I am a low wattage supply', the computer gives an error message.

I base this on the fact that the error message appears when I plug in my 'broken' power supply to the computer OR when I plug the supply into the AC, but not when I plug in a 'good supply' although the 'AC/battery indicator' changes when either supply is connected.

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bz    	73 de N5BZ k

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an 
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bz

Could not that be done totally within the pc Within a few seconds of connecting and normal loading is ok try maximum load for a fraction of a second and if undercurrent/undervoltage then display error message

Reply to
N_Cook

"N_Cook" wrote in news:hmqf2h$ia3$ snipped-for-privacy@news.eternal-september.org:

it's probably just a resistor value that gets read,forms a voltage divider and the developed V gets read. Simple,cheap to implement. No resistor,you get the "insufficient supply" message.

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Jim Yanik
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Jim Yanik

Jim Yanik wrote in news:Xns9D3270153A440jyaniklocalnetcom@216.168.3.44:

....

[quote from ]

"AC power adapter type cannot be determined"

When I startup my computer, I get the message ?The AC power adapter type cannot be determined. Your system will operate slower and the battery will not charge."

This error occurs due to a communication error between an id-chip within the AC adapter and the laptop. Mostly the issue is due to unprotected

1-wire id-chip getting destroyed, or the laptop motherboard being damaged. This issue has been known for a long time and DELL has done nothing to fix it or compensate customers more than replacing the damaged component within warranty, i.e. AC adapter or laptop motherboard. There are reports of customers replacing the AC adapter several times. This indicates that it is a design flaw, wrong construction that can destroy the id-chip. More info on

[end quote]

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bz 	

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bz

bz wrote in news:Xns9D34AFBDC5471WQAHBGMXSZHVspammote@130.39.198.139:

well,then you buy some "ID chips",and make an adapter that carries one,and your generic power supply plugs into that adapter.the adapter stays with the PC when you unplug the PS,so the ID chip doesn't get destroyed or damaged. Perhaps you could even wire the ID chip directly to the PC motherboard. Maybe it just needs a MOV or spike protector across the input.

the "ID chip" design smells(stinks,actually) of deliberate action to preclude use of inexpensive aftermarket supplies.

HOW does a "one-wire ID chip" work,anyways?

Heh,"one-wire ID chip" sounds like a chip resistor.

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Jim Yanik
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Jim Yanik

Jim Yanik wrote in news:Xns9D34C3B17FD3Bjyaniklocalnetcom@216.168.3.44:

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[quote]

1-Wire is a registered trademark of Dallas Semiconductor Corp.[1] for a device communications bus system designed by Dallas Semiconductor that provides low-speed data, signaling and power over a single signal, albeit using two wires, one for ground, one for power and data. 1-Wire is similar in concept to I²C, but with lower data rates and longer range. [unquote]
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bz    	73 de N5BZ k

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Reply to
bz

Power and data on one wire, and the chip needs a ground connection.

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Michael A. Terrell

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