600 only works on external monitor

I have tried 3 different screens, 2 different inverters, and still nothing. But I have noticed that the little switch at the side, the head is missing and there are 3 prongs sticking up. - Does anyone know what way these should be wired up? If i connect the 2 nearest to me together, the machine goes into standby. But if I connect the 2 farthest away it doesn't make any difference.
Any help would be appreciated.
I have tried 2 different bases as well, so it must be something that I am doing wrong?
one is 2645-450.
the other is a 2645 but the numbers have been cut off.
Thanks
Rick

I believe that the switch you are talking about is the lid switch, mounted to what's referred to as the Sub Card:
http://www.kawakami-ca.com/ibm_600x/sub_card/
As you have found out, that switch is what puts the system into standby or hibernation when the lid is closed. According to the picture on my site, when the Sub Card is properly mounted to the base and you're sitting in front of the laptop, the two pins closest to you would be the "normally open" contacts. Those should be left disconnected from each other when operating the system, as you found when you shorted them together the laptop went into standby. The two furthest away from you are the "normally closed" contacts. Those should be connected together. Whether or not that actually controls the backlight, I'm not sure, but that's the way the system would be if the switch was operational.
Once those pins ("center" and "rear") are connected together, make sure that the external monitor is disconnected and then power up the system. When the external monitor is detected at power up, the system may only activate that display; the LCD would be left off. In such cases you can press the Fn+F7 key combination repeatedly and that should cycle the display between the LCD and external monitor.
With three screens and 2 inverters, I'd imagine that one combination of those would be functional, but if you can't accurately determine which ones are working properly, then it's hard to say what might be the problem.
Ray Kawakami
X22;X24;X31;X41;X41T;X60;X60s;X61s;X300;X301;Z60m;Z61t;Z61p;560Z;600E;600X;T21;T22;T23;T41;R50;A21p;A22p;A31 and A31p
Not a Lenovo employee; just a volunteer helping out here
All personal links to PC-Doctor software removed 8/2012 by mfg request

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Strange issue with external monitor, only working when external speakers plugged in

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To start - I plugged the monitor in with the thunderbolt adaptor, and it powers up and works fine. However, there is a nasty buzz coming from the speakers. I did some research and it looks like a simple ground loop issue. I did a bit of troubleshooting, and this is where things get weird.
What I found is - If I unplug the MBox, the monitor loses signal from the computer (displaying ‘No Signal Detected!’). Further, if I keep the MBox plugged in, however unplug both the cables from the MBox to the speakers, the monitor loses signal. It doesn’t matter if the speakers are turned off, however they need to be plugged in (or the monitor loses signal). Weirder still, I can unplug the MBox, however the monitor will work if I plug in the speakers through my macs headphone jack.
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Hello cgoldberg11
Please go to the below link to test if you are having a speaker hardware failure.
Testing for Hardware Failures (Windows 7)
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Thanks
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Although I work for HP, my posts and replies are my own opinion and not those of HP. .....
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EDIT NOTE: This message was moved to the top of the thread in order to assist us with an escalation. For all future post and commments please continue posting in this thread.
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Go to Solution.

Hello,
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3) Get the driver for HD 4400 from Intel website. It doesn't install voluntarily, but there is a workaround: http://www.intel.com/support/graphic...hd+4400+driver
I tried it and only get 1024x768 on the external display, just as with driver (2). If I connect the monitor by VGA, I get the blinking-error described in (1).
Hence, the external monitor is not usable, what is highly unsatisfying.
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thanks,
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PS:
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- I installed the monitor driver from Samsung
- (1) is not an option in Win 7, only on Win8.1, since Win 7 doesn't find any driver for this card
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Hello GeneHall01,
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600 only works on external monitor

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