I need help with idx pro silverdog red pcb!!

[chiuino]

Hi Nándor! This is my new unit assembled and ready to try it out!
For now I have taped two 9 volt batteries, then if everything works, I'll see where to put them!!!
Crossfingers

[Nandor]

Very nice box design! Have luck!

[Koala]

Hi Nándor! This is my new unit assembled and ready to try it out!
For now I have taped two 9 volt batteries, then if everything works, I'll see where to put them!!!
Crossfingers
[ATTACH]39824[/ATTACH]

8x AA battery work well. Using headphones I get will over 20 hours probably near 40 but I change after 3 days detecting.

[chiuino]

8x AA battery work well. Using headphones I get will over 20 hours probably near 40 but I change after 3 days detecting.

Thanks Koala for the info but i want to recycle what i already have

[chiuino]

Very nice box design! Have luck!

Thank you, in the next few days i painted it in black! See you

[Tibuck19]

Being winter here, I am re visiting the IDX Pro ( red board), In all metal, the search depth is good, 34 CM on Canadian and USA Penny, however it does not seem to want to GB ( Using a ferrite )I tried a 20K,50k and 100K pot, it only seems to want GB at the very end of either Pots, Also it has no discrimination, If I set the 10K pot to its highest setting it will block out everything including clad. Any idea's. The coil I am using is one that Don made for me and I also tried a whites Blue max 256. Also the volume is very loud if I have headphones plugged in, Almost un useable with head phones.

[Tibuck19]

My board, Perhaps I Messed something up ?

[nonkapo]

Any fake chips i guess??? These days i'm scared when using anything with Texas instruments logo on it?!?!? Is the source of parts reliable?

[Tibuck19]

Any fake chips i guess??? These days i'm scared when using anything with Texas instruments logo on it?!?!? Is the source of parts reliable?

I doubt that very much the IC's that are on it now, Andy AKA silverdog sent them too me, I also have spares that I got from Digikey, there is something else wrong, Perhaps the 3.3? its not a Polyfilm but was sent by Andy so I figure it is good for it as with the 650p that next to the 553 ?its also not a polyfillm box. I doubt that's the problem though.

[dgm]

Good evening, first you should also send the back of the pcb, and not to be wrong for my experience, you have to measure each component (potentiometers - resistors - capacitors), and very carefully watch with a lens the welds that there is a short circuit , I say this because with the same circuit I had a similar problem because of a potentiometer and a capacitor with false capacity. It made me crazy.

[Tibuck19]

Good evening, first you should also send the back of the pcb, and not to be wrong for my experience, you have to measure each component (potentiometers - resistors - capacitors), and very carefully watch with a lens the welds that there is a short circuit , I say this because with the same circuit I had a similar problem because of a potentiometer and a capacitor with false capacity. It made me crazy.

Here is the back side, I will re look with a magnifying glass. If you are wondering why one resistor is put on the back side, its because I wanted the lead to be used for the Y if I was going to put a VID on it at one point.

[kt315]

i always ask people DO NOT use sprint layout. this simplest soft does NOT have internal means to check/compare
your schematic with a layout. just high level CAD soft have that engine and you can easely to check the conformity
between your schematic and board layout.

[Tibuck19]

i always ask people DO NOT use sprint layout. this simplest soft does NOT have internal means to check/compare
your schematic with a layout. just high level CAD soft have that engine and you can easely to check the conformity
between your schematic and board layout.

Im not sure what you are suggesting I to do to solve this.

[kt315]

what i must do? remake new board?

[Tibuck19]

what i must do? remake new board?

OHHH ok I get it! you meant the board layout is not the best it could be, although I am sure you are right, others have made this and they seem to work correctly ???