Pulse Star II (first analog version)

[eduardo1979]

Hello.
The integrated circuits are completely erased and absolutely nothing is visible. I assume they are: TL064, CD4066, CA3130, and LF411.

[Mehr076]

Hello Ivconic.
I just received my Pulse Star 2 from Aliexpress. Congratulations on the great work you've done.
Thanks to you I have had the opportunity to test this detector.
Best regards,
Eduardo.

What are the specifications of those four erased ICs?

[eduardo1979]

Hello Ivconic.
I just received my Pulse Star 2 from Aliexpress. Congratulations on the great work you've done.
Thanks to you I have had the opportunity to test this detector.
Best regards,
Eduardo.

[kt315]

Jumpers are often required for 2-sided PCBs and usually are not included in the schematic. This is normal.

Repeating over and over that the schematic or PCB has errors is not going to solve your problem. Multiple people have said it works, so it's time to try a different path. Troubleshoot your circuit and figure out what is wrong with it. Start with the power supplies, then the timing, then the TX, then work your way down the RX. It will probably help to redraw the schematic in a more readable form.

the jumpers in epoxy layer are just for protection from pirates. no another aim. when the pirate deletes the black epoxy he breaks those thin copper wires, after he gets his full copy of board is not working.
in Pulse Star II Pro author used two PIC micros and did not use the black epoxy, no need. the PICs have the protection bite.

[Orbit]

1.2 n was in one of the units, in the other it was 1nf, that capacitor affects the width of the transmission pulse, nothing significant affects the operation! The device works with both 1nf and 1.2nf. You yourself made a mistake on the pcb and no one can help you but you! As someone said solder another pcb no one can help you.

[Mehr076]

I know very well what I'm talking about, two original pcbs, I disassembled all the components, resistors, capacitors, and everything else is correct! The fact that someone does not know how to add 2+2 = 4 is already his problem!

Which capacitor did you remove, I think you mean the 1.2n capacitor that is used for the 555 IC?

[Mehr076]

You simply cannot arrange something, buy it and not think! No one can help you if you're stubborn, you haven't broken a single pcb and you know it's not true, at least ten people have done the device, maybe even more, all of them work except for one person?!

Those who made it changed the resistor values and changed some of the paths to make it work.

[Orbit]

It seems to me that the translator translates rather poorly?

[Orbit]

The resistor values in the schematic are wrong and some of the wiring is incorrect.

You simply cannot arrange something, buy it and not think! No one can help you if you're stubborn, you haven't broken a single pcb and you know it's not true, at least ten people have done the device, maybe even more, all of them work except for one person?!

[Orbit]

I know very well what I'm talking about, two original pcbs, I disassembled all the components, resistors, capacitors, and everything else is correct! The fact that someone does not know how to add 2+2 = 4 is already his problem!

[Mehr076]

Yes, you've said that many time, no need to keep repeating. It is now up to you to find the problems.

difference

[Carl-NC]

The resistor values in the schematic are wrong and some of the wiring is incorrect.

Yes, you've said that many time, no need to keep repeating. It is now up to you to find the problems.

[Mehr076]

Jumpers are often required for 2-sided PCBs and usually are not included in the schematic. This is normal.

Repeating over and over that the schematic or PCB has errors is not going to solve your problem. Multiple people have said it works, so it's time to try a different path. Troubleshoot your circuit and figure out what is wrong with it. Start with the power supplies, then the timing, then the TX, then work your way down the RX. It will probably help to redraw the schematic in a more readable form.

The resistor values in the schematic are wrong and some of the wiring is incorrect.

[Mehr076]

Jumpers are often required for 2-sided PCBs and usually are not included in the schematic. This is normal.

Repeating over and over that the schematic or PCB has errors is not going to solve your problem. Multiple people have said it works, so it's time to try a different path. Troubleshoot your circuit and figure out what is wrong with it. Start with the power supplies, then the timing, then the TX, then work your way down the RX. It will probably help to redraw the schematic in a more readable form.

Yes, that's right, I have to find the problem myself.

[Carl-NC]

So these two jumpers are not drawn in the schematic, which means the schematic is not complete and has flaws.

Jumpers are often required for 2-sided PCBs and usually are not included in the schematic. This is normal.

Repeating over and over that the schematic or PCB has errors is not going to solve your problem. Multiple people have said it works, so it's time to try a different path. Troubleshoot your circuit and figure out what is wrong with it. Start with the power supplies, then the timing, then the TX, then work your way down the RX. It will probably help to redraw the schematic in a more readable form.