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DC 9V SMT Soldering Test Kit Electronic Practice Set

4.0

★★★★★

$8.99 /$10.97

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$4.99 /$10.97

Faʻatau nei Faʻaopoopo i le taavaletoso

Credit poʻo Debit Card

Mautinoa le saogalemu o le siaki

Meaalofa e leai se totogi

Meaalofa e leai se totogi i soʻo se faʻatauga

Faiga faʻavae o uta

Lafo e leai se totogi i oka e sili atu i le $9.9

Faiga faʻavae o le toe faafoi

O mea e toe faafoi e talia i totonu o le 40 aso pe a o le aso e maua ai oloa. E le mafai ona toe faafoi pe fesuiai mea faʻapitoa. O mea na faʻatauina ma se kata meaalofa e mafai ona fesuiai; e le talia toe totogi.

Meaalofa e leai se totogi

Susū mai i Roymall, lau upega tafaʻilagi faʻapolofesa mo le faʻatauina o meaalofa maualuga. Matou te faʻatauaina ma talisapaia lau lagolago, ma matou te fia faʻaalia la matou faʻafetai e ala i le faʻaopoopoina o se lagona fiafia i au faʻatauga. A e faʻatau mai ia i matou, e le gata e te maua oloa maualuga e faʻaleleia ai lou olaga, ae o le a e mauaina foi se meaalofa e leai se totogi i soʻo se oka e te faia. Sauni e suʻesuʻe la matou aoina ma maua au meaalofa lelei? Suʻesuʻe la matou filifiliga o oloa maualuga, fai lau oka, ma faʻatali mo le fiafia o lau meaalofa e leai se totogi e oʻo mai faʻatasi ma lau faʻatauga.

Faiga faʻavae o uta

O le a matou galulue malosi e momoli atu oloa ia te oe pe a uma ona maua au oka ma faʻamautinoa e saogalemu le taunuu. O faʻamatalaga o le uta o le a tuʻuina atu i lau imeli faʻamaonia.I le tele o tulaga, o oka e faʻatautaia i totonu o le 2 aso. I tulaga faʻapitoa, o le a tuai e pei ona taua i lalo: A e faia se oka i le Aso Toʻonaʻi, Aso Sa poʻo aso malolo, o le a tuai mo le 2 aso.E masani lava, e manaʻomia le 5-7 aso faigaluega (Aso Gafua i le Aso Faraile) e aunoa ma le aʻafia i le tuai o vaalele poʻo isi mea tau siosiomaga.Talu ai o la matou auaunaga uta o le lalolagi atoa, o taimi o le uta o le a faʻalagolago i lou nofoaga, ma atonu e manaʻomia ai sina taimi ma faʻatali ma le onosaʻi pe afai o loʻo e i totonu o itumalo mamao poʻo atunuʻu.

1. Faiga faʻavae o le toe faafoi & fesuiai

Matou te talia na o mea na faʻatau mai roymall.com. Afai e te faʻatau mai a matou tufatufa i le lotoifale poʻo isi faleoloa, e le mafai ona e toe faafoi ia i matou. E le talia le toe faafoi o mea faʻaiʻu poʻo meaalofa e leai se totogi.Ina ia agavaa mo le toe faafoi, e tatau ona le faʻaaogaina lau oloa ma i le tulaga lava e tasi na e mauaina ai. E tatau foi ona i totonu o le uluai afifiina.Ina ua uma ona maua faʻatonuga toe faafoi mai ia i matou, faʻamolemole afifi au mea e toe faafoi ma lafo lau afifi i le falemeli poʻo se isi avefeʻau.
O le a matou faʻatautaia lau toe faafoi poʻo le fesuiai oloa i totonu o le 3-5 aso faigaluega pe a uma ona matou mauaina. O le toe totogiina o le a faʻatautaia ma tuʻuina atu otometi i lau auala muamua o le totogiina.E le mafai ona toe faafoi pe fesuiai mea na gaosia faʻapitoa, e aofia ai le lapoa faʻapitoa, lanu faʻapitoa, poʻo le lolomi faʻapitoa.Manaʻomia nisi fesoasoani, faʻamolemole faʻafesoʻotaʻi matou. service@roymall.com poʻo Whatsapp: +8619359849471

2.Faiga faʻavae o le toe totogiina

E te maua se toe totogiina atoa poʻo le 100% aitalafu faleoloa pe a uma ona matou mauaina le afifi toe faafoi ma siaki. O le toe totogiina o le a faʻatautaia ma tuʻuina atu otometi i lau auala muamua o le totogiina.Faamolemole ia matau o tau o uta ma soʻo se tiute poʻo pili e le mafai ona toe totogi. O tau faaopoopo o uta e le mafai ona toe totogi pe a uma ona lafo le afifi. O oe e nafa ma le totogiina o nei pili ma matou te le mafaia ona faʻamagalo pe toe totogi, tusa lava pe toe faafoi le oka ia i matou.Pe a matou mauaina ma faʻamaonia lau mea toe faafoi, o le a matou lafo atu ia te oe se imeli e taʻu atu ai ua matou mauaina lau mea toe faafoi. O le a matou faʻailoa atu foi ia te oe le faʻamaoniga poʻo le teena o lau toe totogi.Afai ei ai ni faʻafitauli e uiga i le faagasologa o le toe totogiina, faʻamolemole faʻafesoʻotaʻi matou. service@roymall.com poʻo Whatsapp: +8619359849471

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Description:

1. J1 and J2 are the power supply input terminals of the entire SMT board. It can work normally when connected to AC6V or DC9V. When working normally, all LED lights in this kit can work normally. At first, each group of LEDs flashes with water, and then flashes at intervals, and finally all Light up all the LEDs, then flash again, and cycle like this to check whether the LEDs are working and whether they are soldered well. If it is found that the corresponding LED does not flicker, it means that there is a welding error or a false welding.

2. The AC6V power supply is rectified by D1-D4 diodes, and then through each filter capacitor to pin 1 of the voltage regulator chip 78M05 (LED97 is always on, the rectifier circuit is working normally), and the output of DC5V is supplied to the whole test circuit through pin 3.

3. This test circuit is controlled by a single-chip microcomputer to work with 12 groups of 8-bit LED lights. Each group is composed of 1 74HC573 and 74HC164. One group can control 8 LEDs, 12 groups in total. Figure 1 is the control schematic diagram of one group. When working normally, all LED lights are on and can flash.

Specifications:

Product Name: SMD Soldering Test Kit

PCB material: FR-4PCB board

PCB size: 145*100MM

patch tape connection test

Power supply mode: DC DC9V

Applicable objects: junior welding patch personnel

Component Description: Common patch components are used

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