[the USB tester]

On 2/20/2022 at 1:23 PM, M Salman Sarwar Khan said:

This link is a TTL to USB converter and it works fine but first please explain what's your product? after knowing the details, I could give you a better response/solution

On this issue. As a USB manufacturer I want something that can be used to test if my USB is working without altering if and before sending them to the market... So advice me

[Breadboard dimensions]

to understand the standard measurement for the breadboard check here Other Breadboard Sizes | Breadboards for Beginners | Adafruit Learning System

[Smd device]

On 2/16/2022 at 11:40 AM, Greg1972 said:

Does anyone recocnize or have any info on this component? Any equivalent perhaps?

SQ2LA

what exactly do you want? the name of the component or the datasheet of the components

[RLC circuit]

On 4/10/2019 at 12:58 AM, Guest Deanne said:

R = 400, C = 0.1 F , L = 0.1 H.

you have just given the numerical data without being specific on what we need to do ... please post the question

[Motorola R2600...]

On 6/7/2014 at 3:02 AM, Externet said:

Am unable to download such Motorola R2600 service manual (Or General Dynamics R2600) supposedly available as .rar at a few places on the web, tried with different compfusers and all choke at every try.    -I do have the operator's manual-

Please, does anyone have it or has the skills to download it into a CD in .pdf ?  I will cover the cost.
Or, upload it to the cloud wherever I can download without .rar complications ?

check this one here and maybe it can help you

Motorola R2600 Service Manual - Free PDF File Sharing (juweliervisser.com)

[PANASONIC SERVICE MANUAL SCDM3 NEEDED]

On 9/28/2020 at 8:25 PM, Hari Kumar said:

I want the service manual for PANASONIC SCDM3 Home theatre system if anyone got it please give the link for it

for the manuals check through this link Panasonic SC-DM3 manuals (manualsdump.com)

[Television Circuit Diagram needed]

On 10/16/2006 at 9:43 AM, kmraghuram said:

I need circuit diagram of Thompson Television (all models)
any one to help me.

hello

check Thomson TV circuit board diagrams, schematics, PDF service manuals - Smart TV service manuals, repair, circuit diagrams, schematics (smarttvmanuals.net) and you will know a lot of things about the Thompsons tv boards

[my fluorescent tube choke]

In my fridge I have a fluorescent tube that helps in the lighting of the fridge. I have problem with the kind of the operations am getting from the lighting system. I have checked all the part and i have realized that they are working well except for the choke which has a problem. I even dont know how i test the functionality of the choke although from observation it has some black smoke. Help me out to see the solution.

[the USB tester]

hello everybody. Am a USB manufacturer and I have had many complains from the end users of my USB product where by after sales I have  gotten several information that the USB is not working, I really want to know how i can over come such challenges as for now my company reputation might go down. I want to know how i can test the end product to ensure its functionality without injecting into the phones. I have come across this type of tester ATtiny85 USB Tester - Share Project - PCBWay and am not sure if it is the best. Could any of you have adifferent idea about what am thinking of doing?

[Switching Frequency Transformer]

first have  a look at the information about transformers here Introduction to Transformer - The Engineering Projects. in this link you will learn a lot about how transformers work and how you will select the best transformer to replae the one that you have. Good lack

[Datasheet FQB60N03L]

can you check the datasheet in this link FQB60N03L Datasheet(PDF) - Fairchild Semiconductor (alldatasheet.com)

it will help you so much

[Anyone knows this component?]

from my end i can realize that this is just a manufacturers part number and not standard part numbers

[Transistor Substitute.]

hello

2SD613 NPN  replacement is BD243C

2SD633 replacement BD649

2SD600 has replacement BD139

2SB631 has replacement BD140

[Schematic / Datasheet for LY6806 device.]

Hello!

the best way is you draw the circuit and simulate it by yourself. That is the only way coz you will even be able to select your own components and feed the right foot prints.

[Question electrolytic capacitor]

The best way is before using a long time disused electronic device you need to change the electrolytic capacitors. It is good to avoid risks accompanied with using a faulty capacitor. 

[My robot shows an error on the left wheel]

Can you share some photos of the board so that i can try to understand what you really want.

[School Project Help.]

Am sorry that am seeing this in 2022. Hope you got the solution. If you never got one let me know so that i can give you a complete solution that I did sometime back.

[Newbie Circuit Designer]

Hey!

I think we have so many open source software that can help you learn about circuits design. The best thing is first to get some relevant knowledge on simple electronic components and their functions eg resistors,  capacitors,  diodes,  transistors,  inductors and transformers. If you get information about this you will be almost there and you can start designing your first simple circuit.