
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
Содержание 8112A
Страница 6: ......
Страница 24: ......
Страница 36: ......
Страница 44: ......
Страница 70: ......
Страница 92: ......
Страница 144: ...8 32 Testing Performance ...
Страница 176: ......
Страница 188: ...B END 1O 1 8 Instrument Overview and Troubleshooting Guide N E 3 5 N _ O E 3 1 r No E 5 r N E s 2 ...
Страница 190: ......
Страница 194: ...10 2 4 Servicing the Power Supply ...
Страница 196: ......
Страница 197: ......
Страница 216: ......
Страница 240: ...10 4 16 Servicing the Shaper and Output Amplifier ...
Страница 242: ...A R l BD RY MR I N 1 2 7 I I IJt 51 CR1 B e i 1 _ _ _ _ 20 ...
Страница 244: ......
Страница 251: ......
Страница 262: ...A B A2 ED RY CONTROL ...
Страница 270: ......
Страница 290: ...R B c R3 BD RY M I CROPROCESSOR 1 2 3 FIGURE 1 0 7 8 ...
Страница 294: ... 8 X2l 2 X2 Figure A 1 Mechanical Parts 1 A 2 Replaceable Parts ...
Страница 295: ...MP MP3 MP MP2 MP4 MPS MP 1 2 MPS MP MP I B ElElElEl Replaceable Parts A 3 ...
Страница 334: ......
Страница 378: ...Figure B 14 Mechanical Parts 1 B 44 Backdating ...
Страница 379: ...A3 tlP3 HP40 4x P41 4x J4 i J2 I O a J I 1 I I a 4 I I I V3 tlP1 I Figure B 15 Mechanical Parts 2 Backdating B 45 ...
Страница 380: ......
Страница 382: ......
Страница 402: ......