HP 8901B - Page 9

Volume 1 Table of Contents
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Model 8901B
SECTION 8
SERVICE (cont’d)
Error Messages ................................................. 8B-14
General
................................................... 8B-14
Error Message Catagories
........................................ 8B-14
Enabling Measurement Progress
and Service Error Messages .................... 8B-14
Measurement Progress Error Messages (Errors
40 through 64) .................... 8B-14
Service Error Messages (Errors
65 through 89) ............................. 8B-15
Power-Up Checks
................................................ 8B-17
Controller Test LEDs and Test Points
..................................... 8B-18
Signature Analysis
............................................... 8B-19
General Disassembly Procedures
....................................... .8 C-1
Top Cover Removal ............................................ .8 C-1
Bottom Cover Removal .......................................... .8 C-1
Side Cover Removal ............................................
.8 C-1
Wormation Tray Removal
........................................ .8 C-1
Front Panel Disassembly Procedure ...................................... .8 C-1
Front-Panel Assembly Removal ..................................... .8 C-1
A1 Keyboard and Display Assembly Removal ............................. .8 C-2
Front Dress Panel and Display Window Removal
........................... .8 C-2
Replacement of Pushbutton Switches and Annunciator LEDs .................... .8 C-2
Service Sheet BD1-Overall Block Diagram ................................. 8D-1
Service Sheet BD2-RF Block Diagram
.................................... 8D-15
Service Sheet BD3-IF Block Diagram
.................................... 8D-25
Service Sheet BD4-Audio Block Diagram
.................................. 8D-37
Service Sheet BD5-Digital and Power Supply Block Diagram ....................... 8D-47
Block Diagram Foldouts ............................................ .8 E.l
rev.08JUL91