IDX-PRO+VDI

[dfbowers]

I put it in the sp. sp or is as photo
[ATTACH]23742[/ATTACH]

If it's a Silverdog kit they will be labeled SP+ and SP-

[onuba]

Speakers connection

8 ohm 0.5w speaker only responds cloc

I put it in the sp. sp or is as photo

[onuba]

8 ohm speaker only responds cloc

idx no sound
Speaker 4 ohm, 8 ohm, 16 ohm, 50 ohm ... value
thanks

8 ohm 0.5w speaker only responds cloc

[onuba]

no sound

idx no sound
Speaker 4 ohm, 8 ohm, 16 ohm, 50 ohm ... value
thanks

[ashefr10]

I saw that on the list des there R25 = 47 ohms?

[golfnut]

Often a - pin point function mode is enabled using a Push to make, push button switch.

My unit has a regular single pole switch - so you dont have to hold the button in.


The purpose of the PP - (if this is what you were asking) - is to enable a mode which requires No Motion of the searchhead to locate target.

This is very useful when a target is located during normal search - switch to PP mode and hover over taget to locate exactly where to dig ( best with concentric coils)


S

[joop]

ok, therefore a button tappet would suit?

a pushbutton, yes

[joop]

re what PP is P11 in nomenclature and therefore the pinpoint is?

Please rephrase your question.. hard to understand what you mean!

[ashefr10]

ok, therefore a button tappet would suit?

PP=pinpoint

[ashefr10]

re what PP is P11 in nomenclature and therefore the pinpoint is?

[joop]

PP=pinpoint

[ashefr10]

WHICH IS THE FUNCTION OF THE BUTTON PP. thank you

[golfnut]

IDX

I see two things that are apparent to me.


A) The PP ch is on in normal use..


I recall a few people posting on here saying that they had hoped for more depth from their IDX kit.


Looking at the schematic there are 3 Rx channels -

DISC
GEB
PP

In normal Disc use, all three rx chs are in use. ( In PP the Disc and Geb ch are isolated with a cosmos switch)

The PP ch works by having a response down to dc - to catch responses at no motion.

As the PP ch is:-
1)Broadband, it will let more noise though.
2)DC image from product detector will also be present.


A potential solution would be to add a 4u7 cap with a switch in parallel with it ( open switch - normal disc useage, closed - PP )



B) With VR4 up high - for more sens, the IDX begins to loose ability to reject iron...

This is because the PP ch (which is ON during normal use) isnt gated from the Disc gating but the GEB gate.

Dont know what to do here.. ?

S

[onuba]

my mistake speaker got the wrong cable and invest BC517 is not b

[ashefr10]

OK , I'm the cabler different potar, discrimination, treshold GEB ... PP points correspond to a push button for pinpoint? An average value which should make for your R25

It is approx 6.5kHz


There is flexibility to move it around, my Tx runs at 12kHz, Rx is about 8kHz

S