HP 7942 Service Manual page 12

ILLUSTRATIONS
Figure
Transaction Structure ...... .
Hewlett-Packard Interface Bus Signal Lines
Disc Recording Format
Track Recording Format
Disc/Tape Drive, Block Diagram
Disc Drive, Block Diagram
Disc Drive, Functional Block
Disc Drive, Functional Block
Disc Drive, Functional Block
Front Panel Self-Test Display
Rear Panel Self-Test Display
Diagram,
Diagram,
Diagram,
P8 Signal Source (Sheet 1 of 3)
P8 Signal Source (Sheet 2 of 3)
P8 Signal Source (Sheet 3 of 3)
(Sheet
(Sheet
(Sheet
Field Replaceable Assembly (FRA) Locations
Power Distribution, Cable Assembly Wl
1 of 3)
2 of 3)
3 of 3)
UO-FRA4 (Power Supply Assembly A4), Layout and Cable Connections
UO-FRA4 (Power Supply Assembly A4), Test Points and Voltages
FRA5 (HOC PCA-A5), Layout and Cable Connections
FRAl (Disc Drive Al), Layout and Cable Connections
FRA2 (DOC PCA-A2), Layout and Cable Connections
Disc/Tape Cabling Diagram
Disc Signal Distribution
Order of Disassembly
HP 7942/HP 7946 Cable Interconnections
HP 7942/HP 7946 Major Assemblies
Disc/Tape Drive, Exploded View
Order of Disassembly
Disc/Tape Drive, Exploded View
x
Page
2-10
2-11
· 3-5
· 3-6
3-31/3-32
3-33/3-34
3-35/3-36
3-37/3-38
3-39/3-40
4-12
4-13
4-21
4-22
4-23
4-28
4-29
4-30
4-31
4-32
4-33
4-34
4-35/4-36
4-37/4-38
..... 5-8
. 5-9/5-10
5-11/5-12
· 6-3
A5-8
A6-3