Resistor Chip Arrays
Kit name: High difficulty full mount welding practice board
Product model: TJ-56-649
Board size: 74 * 53mm
Board thickness: 1.6mm
Working power supply: DC5V (Android USB interface)
Board material: FR-4 tinned double-sided international standard board, green solder barrier layer, all solder pads are tinned, high-strength fireproof and anti drop material, which can be repeatedly disassembled.
Description:
The power part of this kit is composed of an Android USB interface and a self recovery fuse F1. It can be powered by using an Android phone charger or power bank, and has circuit protection function.
The upgraded circuit board can switch modes by turning the switch K2.
Mode 1: PWM mode, automatic water flow, power on to view the effect.
Mode 2: KEY mode, manual flow,
Press K1 to flow once, and when some LED lights cannot be lit normally, this mode can be enabled. Use a multimeter to check whether all signals are normal, fully train students' ability to troubleshoot, better understand the working principle of the circuit board, and accumulate experience in troubleshooting
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Condition : New
Type : Voltage Regulator
Origin : Mainland China