IDX-PRO+VDI

[silverdog]

Hi Eduardo

I need your help

I not find this components MCP1703 and MCP602 in market

What the equivalent please?

cordially
nicolas

MCP1703 is 8v LDO voltage reg. - any 8v reg is ok, LDO will give a bit more battery life
I have some MCP602 if you need some

[walkman]

Hi friends;
As a little confused forum
What are the most recent files for VDI IDX-PRO + Is it possible to install the latest version?

[Nicolas]

I think with a thing like that would solve the problem.

Hi Eduardo

I need your help

I not find this components MCP1703 and MCP602 in market

What the equivalent please?

cordially
nicolas

[said_jarrah]

Thx yalnızefe im waiting i have already designing schematic all over.I sent u message private to.

[yalnizefe]

Let me tell you after the first coil okey done in this day and tomorrow I've just arranged pcb coil wrap

[said_jarrah]

would u help me about this idx pro coil ?

[yalnizefe]

I need help setting fuse hex file?

[Davor]

It is good. Try extracting (one side of) R24 to increase sensitivity of discrimination. it is the blue one on your board next to U4.

[konan]

I measure value it is about 90mV...

[Davor]

This is PCB :

Could you please try connecting your scope to a jumper as indicated on the attached picture and see what residual unbalanced voltage is found here. If under 100mV you're golden, and you can seek your problem elsewhere.
Otherwise try to reduce this to as low as possible by carefully balancing your coil.

Edit: I added a green ground connection too.

[Mefisto]

Shielding coil is formed carbon (fine powder) dissolved in acetone lacquer. R is approximately 500 ohms / 5 cm.

[golfnut]

You mention in PP its real good. This says

your coil must be OK.
GEB CH is working
PP CH is working


Its when your in normal disc mode its weak - take a look at the disc CH

S

[der_fisherman]

To clean a PCB I use an old toothbrush and methylated spirits (alcohol, also called denatured spirits in some areas). Use them to scrub the dirt and flux away, pat off with clean kitchen roll....It can make some serious changes to sensitive circuitry.....

[konan]

The coil is DD, when I override coils I get _____________________ on oscilloscope on RX coil. The rejection of iron is not good. I will clean my pcb. I will inform you about.

[eduardo1979]

Hello,

I made idx pro without display and its performance was pure. 1€ coin detect on about 15cm in the air, I made coil as founder give data for it (RX 35,6 mh, 92ohms and TX 0,587 mh, 1,8ohms) TX operate at 6,5 khz. I really don know what is wrong, pinpoint work perfect with them I can detect 1€ at 28 cm so I think that coil is good set. What can be reason for that pure performance ? Any sugestion?

I make from this pcb, from attachment

If the cancellation of the coils is good, then you have to change the LF347 and U4 (LM393). You have to get some IC with more gain. The rejection of the ferrite and iron as they are?. Many factors can influence. The PCB is not very clean. Try what I said and tell us what happened. Regards.