DC 9V SMT Soldering Test Kit Electronic Practice Set
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DC 9V SMT Soldering Test Kit Electronic Practice Set

3.53 out of 5
17 customer reviews|Add a review

16,80 €

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Availability: 1 in stock Category: Vendor: Electronics Stock Discoun

Description

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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S.N. Name Mark Num. Location
1 103 capacitor※0805 30 C1-C24,C26, C29-C32, C35
2 20P 0805※ 2 C27, C37
3 10uf/16V※ 1 C25
4 100uf/16V※ 1 C34
5 220uf/16V※ 1 C33
6 The resistance value of the resistor is between 1K-3K ohms※ 102 101 R1-R97, R123,R124,R135
7 The resistance value of the resistor is between 0-100 ohms※ 101 35 R98-R106,R108-R122,R125-R134
8 The resistance value of the resistor is between 8.5K-20K ohms※ 203 1 R107
9 10K exclusion※ 103 9 RP1-RP9
10 IN4007 diode※ 5 D1-D5
11 LED light※ 97 LED1-LED97
12 78M05※ 1 U26
13 Touch the button※ 1 S1
14 8M crystal oscillator※ 1 Y1
15 74HC573※ 12 U7-U12,U19-R24
16 74HC164※ 12 U1-U6,U12-R18
17 STC89C52※ 1 U25
18 Single row of needles 2 J1,J2
19 PCB board 1
Note: Components marked with a ※ symbol in the table indicate that the component is a patch component.

Package Include:

1× SMT Soldering Test Kit
(Note: The products shipped are loose parts, and the actual products need to be assembled by the buyer.)

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1de751b1 324c 4a35 95bc ae7badd16a28

Additional information

Weight 0,072 kg

17 reviews for DC 9V SMT Soldering Test Kit Electronic Practice Set

  1. 4 out of 5

    Breana –

    Not bad, but the service does not meet my expectations.

  2. 4 out of 5

    Zion –

    Not the best thing, but worth the money

  3. 3 out of 5

    Tania –

    If you take a look closely, there’re quite some issues.

  4. 3 out of 5

    Gerald –

    Easy to handle

  5. 3 out of 5

    Jaime –

    If you take a look closely, there’re quite some issues.

  6. 2 out of 5

    Verner –

    Buying this was my worst decision

  7. 4 out of 5

    Jamie –

    Hope to see your improvement over time

  8. 4 out of 5

    Larissa –

    Great item. Easy to use and really clean. Worked perfectly!

  9. 3 out of 5

    Jesus –

    I wish there were more customization possible. The support is okay.

  10. 4 out of 5

    Hunter –

    Very flexible and well designed.

  11. 4 out of 5

    Linwood –

    Everybody skips this, but it’s actually a good item, I’ll remove 1 star for the customer support

  12. 3 out of 5

    Juliana –

    No big difference compared to other similar products

  13. 4 out of 5

    Major –

    Got some issues, but it works for me.

  14. 4 out of 5

    Minerva –

    Got some issues, but it works for me.

  15. 3 out of 5

    Kade –

    Please think carefully when purchasing this item.

  16. 5 out of 5

    Alysa –

    I got excellent support for this item. They were patient with me, and helped me solve my issue. I recommend this company 100%

  17. 3 out of 5

    Bennie –

    Sadly, the item was broken, but they offer me a refund so I’ll give a 3-star rating for the support

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Vendor Information

Vendor: Electronics Stock Discoun

Rating: 3.48 rating from 2072 reviews
Company: Stock&Discount

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