Superscan PI

[pustareka]

Eclipse show yours PCB butom to drow tracks superscan ! Ok?

valid poljska sxema Superscan Erik Foster 1996.

[eclipse]

I don't wish to disassemble it at the moment. Even If I wanted the device is not here with me. You're on your own with this.

[Voyager]

Bom dia KT, estou procurando um arquivo que vi em algum lugar do forum, ? de goldscan e foi uma c?pia reversa feita atrav?s de fotos originais, se puder me ajudar me direcionando com informa??es aqui, desde j? agrade?o pela disponibilidade, caso contr?rio agrade?o assim mesmo, e um ano novo repleto de sa?de e boas realiza??es, obrigado.

[surfdetector]

Bom dia KT, estou procurando um arquivo que vi em algum lugar do forum, ? de goldscan e foi uma c?pia reversa feita atrav?s de fotos originais, se puder me ajudar me direcionando com informa??es aqui, desde j? agrade?o pela disponibilidade, caso contr?rio agrade?o assim mesmo, e um ano novo repleto de sa?de e boas realiza??es, obrigado.

Translated:
Good morning KT, I'm looking for a file I saw somewhere on the forum, ? from goldscan and it was a reverse copy made through original photos, if you can help me by directing me with information here, since now? I thank you for your availability, otherwise I thank you anyway, and a new year filled with health and good achievements, thank you.

[kt315]

sorry. i'm not keeping the files made in sprint layout. sometimes they seems much crocked for me. yes, happy new year to you also.
i am ready to keep GERBERS of high quality layouts, although, but do not meet.

[ZOUjiarui]

https://www.geotech1.com/forums/show...oldscan-IVHere it is slightly wrong, the forum has the correct schematic to fix it

[GeoMax]

Hi,

does someone knows the function of the diode in front of the 555 timer (Pin 7)? See red box in the schematic.

Thanks

[Carl-NC]

Looks like it varies the charge rate of the timer RC based on the signal level from U8b. Don't know what that means in terms of the generated audio, though.

[Hassanp]

Hello friends, I made the circuit and solved many problems, but unfortunately the circuit does not work, I have a beeping sound and the threshold volume works, but it does not work when the metal is close to the sense metal coil. I give

[GeoMax]

Hi Hassanp,

what kind of "problems" have you solved? Maybe you have "solved" to much and that's whay the circuit is not working anymore. You should give us a little bit more information's of what you did.

[Hassanp]

Well, the schematic of the circuit did not match with the pcb that my friends placed, for example, the bases of the MOSFETs j112 and j113 were shifted, and for example, the power supply line in the vco part of the sound was wrong, and in the doubler part, the voltage +5v and -5v, unfortunately, there were mistakes, for example, instead of diode 4007 instead of 4148 It has been used and a number of others. I mean, has anyone succeeded in setting up the circuit with this schematic, and if there are any special modifications, please post them so that I can set up the circuit. My circuit is still in trouble and does not have a metal sense. please help

[Hassanp]

I am asking friends who have succeeded in building this circuit to help my circuit work and I will give a great project for free to a friend who helps.

[GeoMax]

Hi Hassanp

Which of the 3 or 4 known Superscan schematics was your base for the project? And further... which PCB layout did you use? Probably there are also several floating around in the Internet.

[Hassanp]

I built the circuit by hand according to the schematic. Do you have the schematic or pcb that is healthy and working and can you put it for me?

[Hassanp]

I have a lot of respect for Almanah, they are good people, my friend, if you have a correct design of this device, please send it to my email so that my problem can be solved.