Service manual

84
Table 6-3. Schematic Diagram Notes
1. All resistors are in ohms ±1%, 1/8 W, unless otherwise specified.
2. All capacitors are in microfarads unless otherwise specified.
3. All unmarked capacitors are 0.047µF.
4. An asterisk negates a signal name. For example, CS2 appears on the schematic as CS2*.
5. Signal lines that are terminated by flags continue on other sheets, and may also go to other locations on the same
sheet (see Table 6-3). Note that flags do not indicate signal flow direction.
Ex: : CAL_LOCK
6. Unterminated signal lines go to at least one other location of the same schematic sheet.
Ex: ----------------- SA_GATE
7. Heavy signal lines represent multiple-wire data buses.
8. Unless otherwise noted, bias connections to integrated-circuit packages are as follows:
Common + 5V
14-pin packages pin 7 pin 14
16-pin packages pin 8 pin 16
20-pin packages pin 10 pin 20
9. Primary refers to the microprocessor and related circuits on the GPIB board. Secondary refers to the microprocessor
and related circuits on the Control Board.