Tandon TM-100-1 Operating And Service Manual page 36

TABLE 3-1
SYMBOLS AND ABBREVIATIONS
Symbol Meaning
rYYYY'\
Erase Coils
rYYY"\
Read/Write Coils
-t::
Normal Transistor
(,
C
Photo Transistor
------t>--o
Driver
~
Driver, Open Collector Output
~
Driver, Inverted
~
Inverter, Open Collector Output
=:[)-iE--
"AND" Gate, Open Collector Output
=D---
"AND"
Gate, Inverted
3-2