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1.Description:

This is a kit parts. You should solder it by yourself.

2.Features:

1>.High sensitivity;

2>.Low power;

3>.Wide operating voltage range;

4>.Low power consumption;

5>.DIY design;

6>.Colorful display;

7>.Mode adjustable;

3.Parameters :

No.	Parameter	Value
1	Model	ASD-84
2	Standby current	Less than 1mA
3	Soldering difficulty Level	Easy
4	Working voltage	DC 5V
5	Display LED	8*4
6	Display color	Red+Blue
7	LED Size	257
6	PCB Size	94*39.5mm

4.Instructions:

Step 1: Complete the installation in the normal way following installation manual and schematic.(Please request separately).

Step 2:Connect audio;

Step 3:DC 4-9V voltage;

Step 4:Adjust working mode

Step 5:Test and use.

5.Mode setting:

Mode	Set Method	Remarks
Factory Testing Mode	Press button S1 before Power on	It is used to detect all LED whether can be ON
Fast Flashing Mode(3)	Short press S1 less than 1second	The refresh frequency is very fast
Medium Flashing Mode(2)	Short press S1 less than 1second	The refresh frequency is general
Slow Flashing Mode(1)	Short press S1 less than 1second	The refresh frequency is slow
High Sensitivity Mode(H)	Long press S1 more than 2second	It can detect weaker audio signals
Medium Sensitivity Mode(B)	Long press S1 more than 2second	It can detect general audio signals
Low Sensitivity Mode(L)	Long press S1 more than 2second	It can filter more interference audio signals

6.Using attention

1>.Please make sure all components in right direction and right place.

2>.Please check whether pseudo/float welding.This is very important .

3>.The soldering iron can't touch the components for a long time, otherwise the components will be damaged because of the high temperature.

4>.It is recommended to use a stable power supply, otherwise it may interfere with the audio signal output.

7.Component list:

NO.	Component Name	PCB Marker	Parameter	Quantity
1	Metal Film Resistor	R15	10ohm	1
2	Metal Film Resistor	RX1-RX4,RY5-RY12	47ohm	12
3	Metal Film Resistor	R13-R14	470K	2
4	Ceramic Capacitor	C5	0.001uF 102	1
5	Ceramic Capacitor	C2-C4	0.1uF 104	3
6	Electrolytic Capacitor	C1	220uF	1
7	Red LED	D1-D16	257mm	16
8	Blue LED	D17-D32	257mm	16
9	Audio Socket	J2,J3	SMD3P	2
10	Power Socket	J1	DC3.5	1
11	WD1084	U1	DIP-16	1
12	Button	S1	665	1
13	USB to DC Cable		100cm	1
14	Audio Cable		100cm	1
15	PCB	ASD-84	94*39.5mm	1

Note:Please request install manual and schematic for us;You can finish install by PCB silk screen and component listing.

8.Application:

1>.Electronic teaching

2>.Exercise welding skills

3>.Circuit application

9.Frequency asked questions:

1>.Why can't work?

A :Please make sure all components in right direction and right place and check whether pseudo/float welding.This is very important.

10.Install tools you need preliminary preparation by yourself：

1>. Soldering iron;

2>. Multimeter;

3>. Solder wire;

4>. Iron stand;

5>. Diagonal cutting pliers;

6>. The screwdriver;

7>. Tweezers;

8>. Long nose pliers;

9>. Suction tin;

10>. Cleaning sponge;

11>. Screwdriver set.

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Refund

If you can't receive the product within 2 months (60 days), please contact with us,we promise to payback 100% of your money.
We ensure our products work normally before post.If the products is broken before arrival to you,all you should do is taking a photo to show us our broken product.We promise to payback 100% of your money.
If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please contact us and double check the return address before you return it.
If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.

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2. We only ship to confirmed PAYPAL address; your PAYPAL address must match your Shipping address.
3. Any non-received items caused by invalid address registered on PayPal are not in our full refund or replacement policy. Shipping fee has including the local handing and packaging fee.
4. All the items will be shipping within 1-2 working days after receiving the payment, except some holidays.
5. We will not be responsible for any custom delay or tax, because transit time is highly depended and provided by postal Service.
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Items will go to post within 1-2 business days after payment confirmed.

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