I posted this note back in 2008, now I have to try again: maybe someone can help.
I am editing this message in hopes that SOMEONE might try to read the voltages present at the pins on the battery connector, maybe by running with no battery, and using a digital voltmeter to read the voltage present on the pins. I am trying to find which pin the charging voltage should appear on; I would expect it to be in the +15 volt range.....and also what pin is ground. As I have indicated below, my problem was the same as everyone else's (basically in this whole thread), but after resoldering the power connector, my laptop works flawlessly on AC power, but I have no "lightning bolt" on, and the battery shows no charge.
I would be very grateful if someone could post their findings from a WORKING Compaq R3000.
Thanks to all!
Could someone please tell me the pin layout for the battery connector in the Presario R3000?
Like so many other people, I have had to repair the power connector problem on my machine. I would certainly like to thank everyone who posted their experiences on this problem on this forum for the benefit of others. I am an ex telecom worker, so I do computer repair as a hobby/sideline while semi-retired.
The dismantling, soldering of the loose power cord connector went very well ( I did it about a year ago), but I do not get a charge light on the front of the machine; and it won't run at ALL on the battery. ( I have NO idea of the condition of the battery), so I'd like to first of all determine if charging voltage is where is should be on the connector. I do have 19.89 Volts present on the expansion bay contacts.
I have also had a very intermittent problem of losing the wireless feature on the R3000. The cause is the contact strip that connects the motherboard to the small circuit board containing the sound and wireless buttons. I think I have solved that one by removing the motherboard, and also the small "audio and wireless button board"...and then placing about a .005 thickness washer on each of the 2 standoffs and reinstalling the small card. The purpose of the washers is to slightly elevate the card to make the contact much firmer with the motherboard when it is screwed down. Doing this does not interfere with the operation of the various buttons. ( examine the soldering on the small card while you can: I touched up several bad (cold) joints on it as well, but the wireless ones were ok). So far, so good; I have not lost the wireless since that operation.
As an ex Telecom tech here in Alberta, HP test gear used to really GOOD equipment. That was back then; this is NOW. I am having to deal with all manner of HP screw-ups, especially in their all in one printer BLOATED software. I used to recommend HP hardware, but now I am not so sure. GEE, I wonder if letting "off-shore" companies produce almost EVERYTHING we NEED is such a smart idea??? Better not get into the politics of THAT one....
Thanks agin....GREAT forum!!!