IDX-PRO+VDI

[CDI]

My third idx pcb won't work, i have no sound when turned on. Checked all IC's, short connection's, bridges, almost all resisistors, no idea more what can be wrong...

[gaby_sult]

it is better than using 4066 in this part

pinpoint completely separated from discriminate mode

so the device less noise

I found something similar (name All 1M) a Czechoslovak site.
As a principle scheme is almost IDX.

[jaymay]

Hi
Im new here could someone send in rar all newest version IDX-PRO+VDI plus modifications (schem, PCB, elements list, coil etc.) because im reading few hours this forum and still cant get all things (even if i got all im not sure for 100% about it). THX You very much

[ossamaussama]

it is better than using 4066 in this part

pinpoint completely separated from discriminate mode

so the device less noise

[ossamaussama]

yes correct

[gaby_sult]

That's corect ?

[ossamaussama]

[gaby_sult]

i found the problem 4066 cannot switch high dc voltage ( above 3.5 volt ) i replace the switch between disc and pin point by toggle switch and it work even better

How did you change the PCB?
Can you put a picture montage changed?
Or a scheme with changes.

Regards Gaby

[ossamaussama]

i found the problem 4066 cannot switch high dc voltage ( above 3.5 volt ) i replace the switch between disc and pin point by toggle switch and it work even better

[silverdog]

Due to many requests I have just taken delivery of more IDX Pro boards

http://www.silverdog.co.uk/shop2/index.php?route=product/product&path=35&product_id=123

[Koala]

Very similar to my meter. Mine is slightly more basic. Love it. Very fast reading resistors no waiting for it to settle. AC works fine on things like mains voltage. Because its RMS not peak to peak it struggles to see small changes in the TX or RX where as a scope can see a fraction of a mm movement.

[CDI]

Less than 200mv pin 6 U1

Never had any success with my fluke multimeter. Scope easy. Think it depends on the meter.

Will try that Koala today.
Btw, if u mean on this Fluke, i had one. He was realy good.

http://www.fanzo.org/forum/download/file.php?id=46657&mode=view

[Koala]

Today i tried to null coils on my second idx, but there is weird problem. When i measure U1 pin 3, i got constantly 0.9 volt's. No changing voltage even with moving coils.
Measured AC 200 on multimeter.
What's the real nulling point on idx board? U1 pin 3 or?

Less than 200mv pin 6 U1

Never had any success with my fluke multimeter. Scope easy. Think it depends on the meter.

[CDI]

Today i tried to null coils on my second idx, but there is weird problem. When i measure U1 pin 3, i got constantly 0.9 volt's. No changing voltage even with moving coils.
Measured AC 200 on multimeter.
What's the real nulling point on idx board? U1 pin 3 or?

[Koala]

yes it can reject frite in all metal and discrimination mode

i change rx capacitor and still have the problem with large copper target

small coin can be detected very near the coil\
but large bronze coin can be detect only if it 5cm to 35 cm
not less not more

is it saturation problem in amplifer stage ?
is it normal?
in all metal ( pin point ) it can detect large copper very near the coil

35cm on large coins is normal.

Not detecting if close to the coil is not

I have no ideas hope someone can jumps in. Only thing I can think of is the phase is altering and the target is being discriminated out as iron

Is it the same in all metal mode