HP 8112A, Operating, Programming And Servicing Manual

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Contents-14
8-20. Correct High-level Control .
8-21 . Correct Delay Control . . .
8-22. HP-IB Verification Test . .
9-1 . Access to the HP 8 1 12A for Adjustments
9-2. Pre adjustments setup
9-3. Typical Pulse Display . .
9-4. Decade Accuracy . . . .
9-5. Double Pulse Adjustment
9-6. Low Pass Filter . . . .
9-7. Slope test setup . . . .
9-8. Adjustment Points on the Main Board Al
9-9. Adjustment Points on the Control Board A2
10.1- 1 . HP 8 1 12A Functional block diagram
10.1-2. Custom ICs used in the HP 81l2A
10.1-3. HP 8 1 12A in its servicing position
10.2- 1 . Power Supply block diagram .
10.2-2. Main Board Al - Schematic 1
10.2-3. Main Board Al - Schematic 2
10.2-4. Detail of wiring to Line Voltage Selector switches
10.2-5. Power supply components - Underside of main board
8-28
8-29
8-30
9-4
9-5
9-8
9-10
9-12
9-1 6
9- 19
9-22
9-23
10.1-1
10.1-2
10.1-3
10.2-1
10.2-5
10.2-7
10.2-9
Al . . . . . . . . . .
10.2- 10
10.3- 1 . Timing IC block diagram . .
10.3-3
10.3-2. Example of signal generation .
10.3-5
1 0.3-3. Slope IC block diagram . . . 10.3-7
10.3-4. Main Board Al - Schematic 3 10.3-9
10.3-5. Main Board Al - Schematic 4 10.3- 1 1
10.3-6. Main Board A l - Schematic 5
10.3-13
10.3-7. Address decoder - Simplified block diagram 10.3-14
10.3-8. Period Generator Input pin 7 10.3-16
10.3-9. Period Generator ramp signal pin 20
10.3- 17
10.3-10. Period Generator output signals . . 10.3-17
10.3- 1 1 . Delay Generator I/P O/P waveforms 10.3- 18
10.3-12. Delay Generator ramp signal pin 20 . 10.3-18
10.3- 13 . Width Generator Input . . . 10.3-19
10.3-14. Width Generator ramp signal 10.3-20
10.3-15. Width Generator output
10.3-20
10.3-16. Slope Generator Input and Output signals 10.3-21
10.4- 1 . Shaper IC Block Diagram . . . . 10.4-2
10.4-2. Current Mirror . . . . . . . . .
10.4-4
10.4-3. Simplified Output Amplifier circuit
10.4-5
10.4-4. Main Board Al - Schematic 6 . . 10.4-7
10.4-5. Main Board Al - Schematic 7 . . 10.4-9
10.4-6. Shaper IC Input Signals on Pins 18/19
10.4- 1 1
10.4-7. Shaper I C Output on Pin 12 . 10.4- 1 1
10.4-8. Shaper I C Output (FIXED) . . . . . 10.4- 12
10.4-9. Shaper IC Output (LINEAR) . . . . 10.4- 12
10.4-10. Shaper IC Output (FIXED, HIL +0.99 V) 10.4- 12
10.4- 1 1 . Main Board Al - Component layout
10.4- 1 7
10.4- 12. Main Board Al - Component locator
10.4-19
10.5- 1 . Principle of DAC Operation
10.5-2
10.5-2. DAC - Reciprocal operation . . . . 10.5-3