pcb-lorens-5

[eclipse]

I believe you didn't get help is nothing personal.
Probably no one else has tried to built this board because of the complexity.

[eclipse]

I've started drawing the schematic for one of the boards (the more complex one). It's coming along nicely.
I will publish the schematic later today, if I'm lucky. I hope forum people will step in to make a discussion.

[eclipse]

Here is the schematic. Here and there some missing connections needed to be sorted.
It still needs to be checked for errors, simplify the connections with net ports, etc... and aloooot of cleaning up, probably best to split into sections.

"Mystery Chips":
* IC1-IC18
* Q1-Q5
* R2 - ?? unknown value

[eclipse]

Added one missing link and slightly more readable.

[mee60]

hi
in your circuit not to exist , sound driver(2 ic) , mosfet driver(3 tr and 1 mosfet and 1 ziner diod) , power supply (3 ic) , selector driver (2 ic), analog meter driver(2 ic)
q1 and q5 is 2n3906
r2 not assemble in original board
R55 and R64 is 22K not 33K

[eclipse]

Yes that's just the bottom board.






The top board with the power & mosfet & preamp I haven't tried yet.
Thanks for the R2 & transistors info.

[eclipse]

R55 is 22K - yes, not 33K.

But R64 is 220K (marked on the original picture as R55/220K).

[sinclairuser]

first of all well done eclipse, dont pay much attention to that other guy as we say here "he is only blowing bubbles anyway".
secondly, this thread is a prime example why no info should be given without info being posted, dont come here asking for infomation on devices and indeed then get upset as none was forthcoming, you have contributed nothing infact you even blanked out chip part numbers on photos.
you simply want to copy a device for your own ends, you want us to help you but you wont even give us the correct info to be able to help you how messed up is that?

[gurdal]

http://s9.dosya.tc/server2/mfyfh8/Lo...lse_5.rar.html

[eclipse]

I think the chips markings are blank by the manifacturer too, so efen if you recognize them its not 100% accurate unless you have the device. Uncapsulate the chips and read the markings/structure of the die itself. You can easily recognize the 555 timer the dual op amp and the single op amps by their power supply connections. The big 16 pin chips im not too sure about. Must be some similar to cd4538, 74hc221 i guess.

It's alot of work to turn this into readable schematic, and even way more in working device so I get that, no one here is to blame beheaving badly.

[mee60]

R55 is 22K - yes, not 33K.

But R64 is 220K (marked on the original picture as R55/220K).

in original board R64 an R55 is 22K
which original board R55 is 220K?
i dont see it.

[mee60]

I think the chips markings are blank by the manifacturer too, so efen if you recognize them its not 100% accurate unless you have the device. Uncapsulate the chips and read the markings/structure of the die itself. You can easily recognize the 555 timer the dual op amp and the single op amps by their power supply connections. The big 16 pin chips im not too sure about. Must be some similar to cd4538, 74hc221 i guess.

It's alot of work to turn this into readable schematic, and even way more in working device so I get that, no one here is to blame beheaving badly.

I think the chips markings are blank by the manifacturer too, so efen if you recognize them its not 100% accurate unless you have the device. Uncapsulate the chips and read the markings/structure of the die itself. You can easily recognize the 555 timer the dual op amp and the single op amps by their power supply connections. The big 16 pin chips im not too sure about. Must be some similar to cd4538, 74hc221 i guess.

It's alot of work to turn this into readable schematic, and even way more in working device so I get that, no one here is to blame beheaving badly.

I am of course somewhat help you
Because hardly got Schematic
I built the circuit. And gave the correct answer
Sufficient funds are absolutely correct me
Coils who have not won more than its original sample
Please send me your email so I can send you my movie for its function

this ic is MC14538 not 74hc221
should be MC14538 original
با تشکر

[mee60]

Hi all
this is my new Lorenz lp5 pcb

[mee60]

Hi all
my new pcb of lorenz lp5 and assembled power supply , object and battery charge LED , selector driver , sound driver , and Reference voltage

[deltapulse]

hi mee60
i can't find ic i, can you help me ?