Agilent Technologies 856290216 service manual Contents-12

4-13. Al6 Fast ADC and Al7 CRT Driver Mounting Screws . . . . . . . . . .

4-14. HP 85623 Assembly Locations . . . . . . . . . . . . . . . . . . . .

4-15. A9 Mounting Screw at Right Side Frame . . . . . . . . . . . . . . . .

4-16. A10 Mounting Screws . . . . . . . . . . . . . . . . . . . . . . . .

4-17.HP 85623 All Mounting Screws at Right Side Frame . . . . . . . . . .

4-18.Al4 and Al5 Assembly Removal . . . . . . . . . . . . . . . . . . .

4-19. Al4 and Al5 Assembly Cables . . . . . . . . . . . . . . . . . . . .

4-20.Al6 and Al7 Mounting Screws . . . . . . . . . . . . . . . . . . . .

4-21.Al6 Cable Routing . . . . . . . . . . . . . . . . . . . . . . . . .

4-22.Main Deck Screws . . . . . . . . . . . . . . . . . . . . . . . . .

4-23.A6 Power Supply Cover . . . . . . . . . . . . . . . . . . . . . . .

4-24.W3 Dress and Connection to A6 Power Supply . . . . . . . . . . . . .

4-25.Line-Switch Mounting Screw and Cable Dress . . . . . . . . . . . . .

4-261.W3 Cable Connector . . . . . . . . . . . . . . . . . . . . . . . .

4-27Side Frame Mounting Screws . . . . . . . . . . . . . . . . . . . . .

4-28A21 OCXO Mounting Screws . . . . . . . . . . . . . . . . . . . . .

5-lParts Identification, Assembly Mounting . . . . . . . . . . . . . . . .

5-2Parts Identification, Cover Assembly . . . . . . . . . . . . . . . . .

5-3Parts Identification, Main Chassis . . . . . . . . . . . . . . . . . . .

5-4Parts Identification, RF Section . . . . . . . . . . . . . . . . . . . .

5-5Parts Identification, Front Frame . . . . . . . . . . . . . . . . . . .

5-6Parts Identification, Rear Frame . . . . . . . . . . . . . . . . . . .

6-lHinged Assemblies . . . . . . . . . . . . . . . . . . . . . . . . .

6-2 /Top View (A2 Unfolded) . . . . . . . . . . . . . . . . . . . . . . .

6-3Top View (A2 and A3 Unfolded) . . . . . . . . . . . . . . . . . . .

6-4Top View (A2, A3, A4, and A5 Unfolded) . . . . . . . . . . . . . . .

6-5.Bottom View (Al5 Unfolded) . . . . . . . . . . . . . . . . . . . . .

6-6.Bottom View (Al5 and Al4 Unfolded) . . . . . . . . . . . . . . . .

6-7.Al6 Fast ADC (Option 007) . . . . . . . . . . . . . . . . . . . . .

6-8.HP 85623 Front End . . . . . . . . . . . . . . . . . . . . . . . .

6-9. Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-l.Assembly Test Points . . . . . . . . . . . . . . . . . . . . . . . .

7-2.Ribbon Cable Connections (1 of 2) . . . . . . . . . . . . . . . . . .

7-3.Service Cal Data Menu . . . . . . . . . . . . . . . . . . . . . . .

7-4.Functional Sections . . . . . . . . . . . . . . . . . . . . . . . . .

7-5.Phase Lock Loops . . . . . . . . . . . . . . . . . . . . . . . . . .

7-6.Simplified Block Diagram . . . . . . . . . . . . . . . . . . . . . .

7-7.Overall Block Diagram (1 of 3) . . . . . . . . . . . . . . . . . . . .

8-l.A3 Test Connectors . . . . . . . . . . . . . . . . . . . . . . . . .

8-2.A3 Interface Assembly Block Diagram . . . . . . . . . . . . . . . . .

8-3.Fast ADC (Option 007) Block Diagram . . . . . . . . . . . . . . . .

9-l. A4 and A5 Test Connectors . . . . . . . . . . . . . . . . . . . . .

9-2. IF Section Troubleshooting with the TAM . . . . . . . . . . . . . . .

9-3. IF Adjust Signature . . . . . . . . . . . . . . . . . . . . . . . . .

9-4. Detailed IF Adjust Signature (1) . . . . . . . . . . . . . . . . . . .

9-5. Detailed IF Adjust Signature (2) . . . . . . . . . . . . . . . . . . .

9-6. Detailed IF Adjust Signature (3) . . . . . . . . . . . . . . . . . . .

9-7. Detailed IF Adjust Signature (4) . . . . . . . . . . . . . . . . . . .

9-8. Detailed IF Adjust Signature (5) . . . . . . . . . . . . . . . . . . .

9-9. Noisy Signature . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-10. Noise with Correct Shape . . . . . . . . . . . . . . . . . . . . . .

Contents-12

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