Robie Jr deeper inspection

Okay, so oscilloscopes are expensive. So I purchased this very intriguing piece of hardware. The Bitscope. Oh yeah, its cool. Can you do microbiology with out a microscope? Nope. So an oscilloscope and a logic analyzer are a must for in-depth tinkering. I've laid out the schematic in Inkscape and begun the slow deconstruction and probing.

7-E055-R1. M6411B-24.

Here's what I have been able to learn currently.
LB1630 are cheap and common to the 1980's motor controllers.

Pin 1		Backward
Pin 2		Ground
Pin 3		Unused
Pin 4		Forward
Pin 5		Motor 1
Pin 6		Unused
Pin 7		Power
Pin 8		Motor 2

You can run the Robbie Jr on 5V 800 milliamps. Yes, you can only power the h bridges if you only want to bot to move and nothing else...but what kind of challenge is that?

M6111B-24 is still quite a mystery to me.

8622EY is the audio chip.
Pin 1 is power
Pin 13 is ground
Pin 15 is the sound output.