There is a boost converter with a rather large inductor. L7, C6, C3, VR1, D1 Form the boost converter. Check the Diode, and obviously C6 and C3 have to be replaced as well. Also, pull the datasheet on the linear technology boost regulator and check it against what it should be via datasheet. you will find your fault this way.

Datasheet:

http://pdf1.alldatasheet.com/datasheet-pdf/view/70296/LINER/LT1070CT.html

Take a peak at the first page, it has an example 5v to 12v circuit based around the LT1070 which is what the portables use. Start here...

Note: since its a boost configuration, if it was not oscillating/running, your v-out would be V-in minus a diode drop. So, it minimum your output voltage would be roughly a volt below the input supply. So if it was 6v, it would be around 5v. Now since yours is sitting around 1v, you need to make sure your output isnt shorted or heavily loaded, which it appears to be, the regulator will shutdown in overcurrent protection, and your D1 would heat up really fast. But at the same time, the LT1070 can also be shorted and give you the same result, and it will also heat up really fast. Something is getting hot. For sure. Too heavy of a drop from Vsupply.