Agilent Technologies 4284A Service Manual page 17

SECTION 3. ASSEMBLY SERVICE INFORMATIONS
3-1. I N T R O D U C T I O N
3-2. S A F E T Y CONSIDERATIONS
3-3. R E C O M M E N D E D TEST EQUIPMENT
3-4. A F T E R SERVICE PRODUCT SAFETY CHECKS
3-5. A S S E M B L Y DESIGNATIONS AND LOCATIONS
3-6. R E P L A C E A B L E MECHANICAL PARTS LIST
3-7. T O O L S AND FASTENERS
3-8. D I S A S S E M B LY
3-8-1. T o p Cover Removal
3-8-2. A l Assembly Removal
3-8-3. R e m o v i n g the A2, A3, A4, A5, A6, A7
3-8-4. F r o n t Panel Disassembly
3-8-5. A 9 or A90 Assembly Removal
3-8-6. A 1 0 Assembly Removal
3-8-7. A 1 3 Assembly Removal
3-8-8. A 9 1 (LCD module) Assembly Removal
3-9. T H E O R Y OF OPERATION
3-9-1. P o w e r Supply Block Section
3-9-2. D i g i t a l Control Block Section
3-9-3. S o u r c e Block Section
3-9-4. T r a n s d u c e r Block Section
3-9-5. V e c t o r Ratio detector Section
3-10. F A U L T Y BOARD ISOLATION
3-10-1. S e l f Test
3-10-2. F a u l t y Board Isolation Program
3-10-3. F a u l t y Board Isolation Procedure
TABLE OF CONTENTS
3
3 -
A20, A30, A31, A40, A50 assemblies
3
3
3
3 - 1
3 - 1
3 -
3 -
3 -
- 1 6
1 6
3 - 1 6
3 - 1
3 - 1
3 - 1
3 - 1
3 - 1
3 - 1
3 - 1
- 2 1
3 - 2
3 - 2
3 - 2
3 - 2
3 - 3
- 3 5
- 3 5
3 - 3
3 - 4
3-1
3-1
2
3
5
7
7
8
8
8
9
9
1
3
5
7
0
8
0