AT&T PC 6300 - Motherboard Component Layout

SYSTEM OVERVIEW
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Motherboard Component Layout
Figure 2-7 shows the physical location of the following principal
Motherboard integrated circuits and other components:
1. 8086-2 CPU
2. 8250 UART
3. Bank 0 RAM
4. Bank 1 RAM
5. High-Byte EPROM
6. Low-Byte EPROM
7. 8237 DMA Controller
8. 8259A Interrupt Controller
9. NEC mPD765 MFD
Controller (or equivalent)
10. 8041 or 8741 Keyboard
Controller
11. 8253 Timer
12. 8288 Bus Controller
13. Speaker
14. RESET Button
15. Battery
16. Clock-Calendar Chip
17. DIP Switch Bank 1
18. DIP Switch Bank 0
19. Z-8530 Socket
20. 8087-2 Socket
21. ±12V Connector.
2-25