Unfortunately the PRAM battery in the Wallstreet requires almost a full dismantling of the PB to get to it. They changed the location in the Lombard and made it a really easy switch. If you are going to take it apart, just put the new battery in and don't make double work for yourself. It will not be a fun procedure.
My Wallstreet still has the original PRAM in it. If the main battery is charged it will hold the settings but it isn't used much so I often find myself booting to OS 9 and then having to restart to get to X. One thing I do remember is that if the main battery is dead the PRAM battery charge will last only 5 minutes as it gets it's charge from the main battery. You may be wasting your time if you don't have a good main battery.
Try taking out the main battery and optical drive and unplugging the AC. (Make sure it is propped up in the rear so it won't flop backward.)
Wait for 10 minutes. Then do the power reset, wait a few seconds, plug in the AC and try to boot. Repeat this a couple times if needed.
You can also disconnect the keyboard and try booting.
Alternatively, if this fails you may want to go inside and make sure all is properly connected.
Then connect to AC and let it sit for awhile before trying to start up.
Do you hear anything? The fan? A whirring noise? My Wallstreet goes though a RAM memory check on its own when it starts up and will look like it isn't booting, just a black screen and no noise or action for about 30 seconds. Then suddenly I will hear the drive spin up and several seconds later the screen will come on. I often worry that it isn't working then remember this odd routine it goes through.
