Contents
About This Guide
vii
1
Overview
1.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–1
1.2
DECstation Base System . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–2
1.3
DECstation Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–3
1.3.1
System Unit Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–4
1.4
DECstation System Configurations . . . . . . . . . . . . . . . . . . . .
1–4
1.4.1
DECstation 212
LP
Main Logic Board . . . . . . . . . . . . . . . . .
1–6
1.4.2
DECstation 316
SX
Main Logic Board . . . . . . . . . . . . . . . . .
1–6
1.4.3
DECstation 320
SX
Main Logic Board . . . . . . . . . . . . . . . . .
1–6
1.4.4
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–7
1.4.5
Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–7
1.4.6
Enhanced Keyboards . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–9
1.4.6.1
101-Key Enhanced Keyboard . . . . . . . . . . . . . . . . . . . . .
1–9
1.4.6.2
LK250 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–9
1.4.7
Math Coprocessor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–10
2
Troubleshooting
2.1
Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–1
2.2
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–2
2.3
Normal Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–3
2.4
Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . . . . . . .
2–3
2.4.1
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–4
2.4.2
No Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–5
2.4.3
System Does Not Boot . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–6
2.4.4
System Boots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–6
iii
Summary of Contents for DECstation 212LP
Page 49: ...3 6 FRU Replacement New Illustration LJ 1711 Figure 3 1 Exploded View of DECstation Chassis...
Page 54: ...FRU Replacement 3 11 New Illustration LJ 1708 Figure 3 4 Opening the DECstation System Unit...
Page 57: ...3 14 FRU Replacement New Illustration LJ 1707 Figure 3 5 Removing the Bus Adapter Board...
Page 59: ...3 16 FRU Replacement New Illustration LJ 1706 Figure 3 6 Removing the DECstation 212LP Battery...
Page 63: ...3 20 FRU Replacement Insert version LJ 1703 Figure 3 9 Removing and Replacing the 212LP SIMM...
Page 66: ...FRU Replacement 3 23 Insert version LJ 1701 Figure 3 11 Replacing the 212LP Math Coprocessor...
Page 67: ...3 24 FRU Replacement New Illustration LJ 1700 Figure 3 12 Replacing the 316SX Math Coprocessor...
Page 68: ...FRU Replacement 3 25 New Illustration LJ 1785 Figure 3 13 320SX Math Coprocessor Replacement...
Page 71: ...3 28 FRU Replacement New Illustration LJ 1698 Figure 3 15 Removing the 316SX Main Logic Board...
Page 72: ...FRU Replacement 3 29 New Illustration LJ 1786 Figure 3 16 Removing the 320SX Main Logic Board...
Page 74: ...FRU Replacement 3 31 New Illustration LJ 1697 Figure 3 17 Replacing the Floppy Disk Drive...
Page 76: ...FRU Replacement 3 33 New Illustration LJ 1696 Figure 3 18 Removing the DECstation Power Supply...
Page 91: ......
