User manual for the GT2100A tester that measures multiple parameters of digital ICs such as voltage, current and pin status.
The GT2100A Digital IC Multi‑Parameter Tester, produced by Jin San Hang Technology, provides a range of test modes for TTL and CMOS ICs, including full‑parameter, functional and custom tests. The device features an intuitive interface with LED indicators, a keypad for mode selection, and automatic identification of 74‑series CMOS devices.
The manual explains power requirements, wiring, parameter settings, test procedures, result interpretation (PASS/FAIL), and troubleshooting. It also lists technical specifications such as voltage ranges, current limits and environmental limits. This manual is written in Chinese.
| Power Supply | 220 V AC ±10 % |
|---|---|
| LED Indicators | L0 – power, L1‑L5 – IC pin status |
| Maximum Input Current (TTL, 5 V) | Iimax = 200 µA |
| Maximum Input Current (CMOS, 5 V) | Iimax = 10 µA |
| Maximum Output Current (TTL, 5 V) | Ioh max < 8 mA |
PASS is shown as “PASS”; FAIL conditions appear as “FAILin”, “FAILout” or “FAIL I C C”.
It requires a 220 V AC supply with a tolerance of ±10 %.
LEDs L1 through L5 display the status of the corresponding IC pins during testing.