Pocket Uniprobe Schematic

[Andi68]

[kt315]

[kt315]

[kt315]

[kt315]

[Andi68]

Yesterday I was angry, so I checked myself.
I guess I have to change R7

[Andi68]

But actually I asked for a circuit diagram for the Uniprobe

[bernte_one]

hi andi nobody has a schematic from pocket uniprobe

i have one of the last pocket uniprobes here, and i never give it away
it totally insane, how sensitiv it is


http://www.geotech1.com/forums/showt...light=uniprobe

[Andi68]

werry nice for you

[dbanner]

hi andi nobody has a schematic from pocket uniprobe

i have one of the last pocket uniprobes here, and i never give it away
it totally insane, how sensitiv it is


http://www.geotech1.com/forums/showt...light=uniprobe

If you still have it, maybe put some values to components, then I can complete it to perfection. I completed the layout.

[Polymer]

@dbanner

Great Work I must say!

Thought I'd chip in on this one, it appears to be an interesting project for me.

I have taken your layout and gone about tracing the power rails to continue learning about the pos./neg/common rails.
It helps me learn about this stuff and is like fun puzzle work to understanding how things work.
What I havn't gotten yet is, if this PI has a voltage inverter or a second battery in it...

I could go about marking the components I can read well, but I will wait to see if Bernte1 answers and perhaps puts some better pictures in.
Maybe he will put in the values ... hello Bernte1 !?

Please do check where PIN 1 of the 555C timer goes to. It is not connected to anything by the looks of it.
It should be negative in relation to PIN 8.

Have a nice weekend, Polymer

Uniprobe_tif_04.tif

[dbanner]

@dbanner

Great Work I must say!

Thought I'd chip in on this one, it appears to be an interesting project for me.

I have taken your layout and gone about tracing the power rails to continue learning about the pos./neg/common rails.
It helps me learn about this stuff and is like fun puzzle work to understanding how things work.
What I havn't gotten yet is, if this PI has a voltage inverter or a second battery in it...

I could go about marking the components I can read well, but I will wait to see if Bernte1 answers and perhaps puts some better pictures in.
Maybe he will put in the values ... hello Bernte1 !?

Please do check where PIN 1 of the 555C timer goes to. It is not connected to anything by the looks of it.
It should be negative in relation to PIN 8.

Have a nice weekend, Polymer

[ATTACH]44644[/ATTACH]

I looked at the CS6 PI schematic by CSCOPE for clues as to how the power supply and other aspects of the circuit is set up. It is basically the same power supply circuit as the CS6PI. I don't know if there is inverter but there is curious inductor on cs6pi schematic. Maybe unrelated to power supply.
The retraced layout I did is mostly accurate but it can have few errors. I couldn't go any further.
There are two TO92 package positive and negative regulators in the circuit for the rails. The 555 is audio oscillator(chopper?) via Jfet. I couldn't see any connection to pin 1 just from photos of PCB, doesn't mean it isn't there.
Seems Alot of circuit for just a little probe.

[Andi68]

@ dbanner -I can not open this file

[waltr]

@ dbanner -I can not open this file

You need a .tif image viewer.
I use IrfanView. It is a free download.

[Polymer]

@ dbanner -I can not open this file

dbanner's file is a zipped file with a lay6 file in it.

Get sprint layout viewer for this. If you can't decompress zip file get an unzip program.
Both are free.