Shadow x5 problem

[tac]

Hello,
Im user X5 from Russia.
You can see my problem on the picture.
The nut of a potentiometer has been probably poorly twirled and it has turned breakage of a wire. Where what to solder?
I understand that i loose warranty but sending from Russia and back will be more problem and long.
Im electronic engineer and i have all equipment for adjustment.
Can you tell me method adjustment and calibrate Shadow X5 ?
I read about 16" for nickel but i have only 10-12 whith 9" coil (dis3,sen8 ).
Thanks

[Goodrat]

Re: Shadow x5 problem

Carl had a pic of the PC board. Maybe there is a pic of this section also around. I'd like to see how they seal the cover myself. As I am still afraid to open mine to adjust the preset GB, in fear of breaking any seal.
Plus, if anyone knows wich pot is the preset GB, that would be helpful. My machine is set too negative.

[Beachcomber]

Re: Shadow x5 problem




Here is a pix of the power switch and sensitivity control wiring. Hope this helps!!!

HH

Beachcomber

[Beachcomber]

Re: Shadow x5 problem

I would liek to know which pots do what but I haven't sat down to try and trace out the board. There are 8 internal controls on the X-5. One is for the preset GB and two are for the target check disc settings. Don't know what the other 5 are for.

HH

Beachcomber

[Beachcomber]

X-5 PCB Pix




Here's a pix of the X-5's PCB. Unlike many detectors Troy connected all the pots and switches to the PCB via a ribbon cable. The connector is located in the center of the PCB. Makes for a very neat clean and professional looking detector.

HH

Beachcomber

PS IF you find out before I do which controls do what please let me know!!! If I find out before I hear from you I will let you know! Thanks!!!

[tac]

Re: Shadow x5 problem




Thanks of lot Beachcomber !
I can mistake but i try experementaly move this pots...and i d like adjustment whith osciloscop from control point on the PCB (tp1-tp14)but dont know method.

[Goodrat]

Re: Gound Preset

What is GB+ and - ?
Wich is Preset ground?
What is "Tarsh" ?

[tac]

Re: Gound Preset

Gb is ground balance and + - like knob on front panel.
Tarsh-threshold level
But i repeat that is only my experience.

[Goodrat]

Re: Gound +/-

Are you saying that these two pots adjust the upper and lower maximums of the pot on the pannel? What about pre-set GB?
My guess would be that one pot is the preset, then, when switched to manual, that pot is out of the circuit and the panel pot takes over.
But two pots? Strange. Explain the effect when you turned them.

[Beachcomber]

Re: Gound +/-

One is probably the Fixed Ground Balance setpoint as you suspected. I had asked Troy if there was an internal adjustment for shifting the range of the front panel manual ground balance control and he told me that there wasn't. The reason I had asked is that in a few areas I need to have the GB control fully clockwise and still have a slight negative threshold and I wanted to shift it a little so that I could get a slight positive threshold. One thing I did find interesting is that my circuit board has a sticker on it that says Fisher. I would have thought the Circuit Board if it was marked at all would say Troy! Go figure.

HH

Beachcomber

[Beachcomber]

Re: Shadow x5 problem

Thanks for testing and marking the controls!

HH

Beachcomber

[Goodrat]

Re: Gound +/-

Since you have that appart, can you tell wich pot is the preset GB adjust?

[Beachcomber]

Re: Gound +/-

No I can't. Nothing is marked at all and many of the IC's have thier numbers ground off. DUring the Winter when the weather precludes detecting I am going to spend some time tracing out the wires from the controls and the switches to the circuitry that they are associated with. Then I will have a much better idea of Which control does what. I think I will get an X-3 also and look at them side by side since an X-3 is only a stripped down X-5. By looking at what is and isn't there between the two it should be a lot easier to determine which control does what. Who knows it might actually be quite easy to turn an X-3 into an X-5 without the beach modes

HH

Beachcomber

[Sean Goddard]

Re: Shadow x5 problem

This is about the TWENTIETH or so X5 I've seen with this problem. Looks like Fisher quality control is going down hill.

Maybe they need to step back and take stockc of what they are doing.

[Sean Goddard]

Re: Gound +/-

Hi All,

I suggest one is for BEACH GEB and the other INLAND GEB. Just a thought as I don't have an X5 (they like iron too much), and I don't!