White's PI3000 re-build

[kt315]

i need pics of the 3000's board and connection. do please under the light. partically desolder it. then i will reload all archive and give a link. my email [email protected]

Pleasure

[kt315]

no, it is original resistor. as i remember he went in forum to ask about burnt resistor R44.

[GeoMax]

Two different series of the PI1000 were released back then. Perhaps the pictures of Pete's are PI1000 Series 1 which do not have the PCB version number on it. Mine is definitely a PI1000 Series 2 and has a PCB version number on it.

[dbanner]

18 ohms might have been for some of the older coils??? It doesn't look like it's been changed, it looks like an original resistor. Have a look at the foil side of the 18ohm board to see if it's been replaced at some later stage, I doubt it.
This resistor (R16) was meant to limit the peak current in the coil.

Some of the date codes on the chips from that board seem to indicate 1982? If I'm reading it correctly. Im not sure.

[kt315]

that is. some notes at the schematic for a pcb with the ID code. unreadable while.

[GeoMax]

Hi,

okay... you mean the PCB version number. You are right in Pete's PCB it is missing on the bottom layer. The PCB version number of my PI1000 is 505-0128.

[kt315]

Hi KT315,

The numbers are not deleted. They are printed below the resistor. It looks at my PI1000 the same.
The only different I can see is the big damping resistor. This resistor in my PI1000 is 1/2W and 5R6 Ohms. In Pete's picture it looks like a 18 Ohm 1W resistor.

ok. i am feeling i must tell you about the aspect more detailly, as i can with my english.
Whites uses (used) very specific individual code on their boards printed. this ID code is corresponding to:

1. a schematic.
2. board revision.

it is just for inner using in the company.
ERGO, conclusions. EVERY Whites' pcb has the code and you can sure know what you see and what you wait from a pcb.
in present case of this PI3000 - look attachment.

[Octopulse]

Great! Happy hunting.

“I love the smell of napalm in the morning. It smells like victory”

I just love that movie.

"Napalm yes"...."Resistor no"

[GeoMax]

Hi KT315,

The numbers are not deleted. They are printed below the resistor. It looks at my PI1000 the same.
The only different I can see is the big damping resistor. This resistor in my PI1000 is 1/2W and 5R6 Ohms. In Pete's picture it looks like a 18 Ohm 1W resistor.

[kt315]

this part of board of PI1000 with R16, pics sent me by Pete M. on his pcb he deleted marking of Whites so ID number is absent, in assumption.

[GeoMax]

hi geo

i am just taken files from the forum, keeping, and put them back later, on an occasion, but i do not keep authors names. just sometimes but not always.

pleasure

Hi kt315,

okay... I do the same. I saved the PIDX files somewhere in the year 2002 already. There was also an actual picture of the detector that time. The detector was built by C.Pruysers, also a member in this forum. I had in mind to contact and ask him about this detector but he was seen online last time about 20 ago. Anyway, here is an actual picture of the detector he made that time. The resolution is not great, but you can identify the detector as the "PIDX detector".


The info saved together with the image was this.... "Detector Name PIDX (Picture_5 built by C.Pruysers (11-11-2002))"

[dbanner]

Well I am happy to report that the PI3000 is up and running and out of intensive care.....R16 is now a "happy" resistor. Ran the detector for over an hour and R16 (0.6W 5R6) was cool to the touch.

Initial tests on my gold ring were better than I was expecting....18K average size wedding band.

Thanks to everyone that contributed to the thread......it's good see another White's detector that should have a good deal of life left in her.

6 x new capacitors
1 x new charge pump (rated to 12v)
1 x new diode
1 x new resistor
1 x new 9V snap connector

All other IC's, resistors, transistors and diodes all checked and tested good. Hopefully the other non-electrolytic caps should be good.

Great! Happy hunting.

“I love the smell of napalm in the morning. It smells like victory”

I just love that movie.

[kt315]

Hi KT315,

the set of "PIDX pages" reassemble the Whites PI2000 model. I traced that and compared it with a "Whites PI2000" labeld schematic. My questions are now the following. Maybe someone knows the answer.

1) Were the PIDX pages issued by Whites Electronics? If not, does someone knows who published them?
2) If it is not published by Whites, has Whites Electronics copied this detector from someone else?
3) Was the PIDX dokument published before or after Whites launched their PI2000 detector? The year?

Unforunally there is no information in the whole document about the true developer of this detector and the cover page is missing as well.

hi geo

i am just taken files from the forum, keeping, and put them back later, on an occasion, but i do not keep authors names. just sometimes but not always.

pleasure

[kt315]

can you send me pics of the board in high resolution? my email [email protected]
i have PI1000 pics sent on a request from a geotecher and i see big similarity with yours one. just for an archive.

tia

[Octopulse]

Well I am happy to report that the PI3000 is up and running and out of intensive care.....R16 is now a "happy" resistor. Ran the detector for over an hour and R16 (0.6W 5R6) was cool to the touch.

Initial tests on my gold ring were better than I was expecting....18K average size wedding band.

Thanks to everyone that contributed to the thread......it's good see another White's detector that should have a good deal of life left in her.

6 x new capacitors
1 x new charge pump (rated to 12v)
1 x new diode
1 x new resistor
1 x new 9V snap connector

All other IC's, resistors, transistors and diodes all checked and tested good. Hopefully the other non-electrolytic caps should be good.