Logic Probe TTL/CMOS
- Handy, Quick and Easy
- For DTL, TTL and CMOS
- High Frequency Response
- Instant Indication
- Memory Function
How to use:
- Connect RED clip to + terminal and BLACK clip to – terminal of the power source of the circuit under test. The supply voltage should not exceed 18V DC.
- For TTL and DTL, set the switch to “TTL”
- For CMOS, set the switch to “CMOS”, connect the probe pin to the point to be tested. The LEDs will indicate its states:
A) ALL LEDs OFF -High impedance
B) RED LED ON – High (1)
C) Green LED ON – low (0)
D) Orange LED ON –
- For detecting and storing pulse or level transition, set lower select to side marked “PULSE” first. Contact the probe pin to the point to be tested and the LEDs will indicate is basic state. Then set the lower select switch to “MEM” and the orange LED will light when any or level is detected.
