BH_Landstar_
New member
Hmmm ! Interesting......
Maybe Dave J. can give us some details on version 4 !
Maybe Dave J. can give us some details on version 4 !
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What Gives???
- Thread starter josey
- Start date
Ok I was hoping for someone to do this so I could compare units. Mine is a version 2. and yours a 2.9 .
I notice 4 differences between the models.
1. below the bat wires and above the coil wires it looks as if a adjustable pot has been added.
2. lower center at C16 different components.
3. beneath the black tape a additional piece of shielding has been added. Please confirm this for me if you can as it might be something to do with emi on my unit. (ps love the tape)
4. this is probably do to the other info you said you hid but their is no revision number or date or I have a newer rev board.
I don't now for sure but the new pot or the existing one might be a sens adjustment. My guess is the new one. Maybe our machines can be super-tuned?
The other point Id like to make is that (and I'm no expert) is that the left side processor may be a eprom chip for memory.
I hope someone will be nice and show the inside of the G2 so we would know about the double processors for sure. But even that might not answer our question as their are dual core processors all in one unit.
The other question is lower center of the board where we have different components has your board been reworked it appears to have a white residue or flux residue or smeared legend?
And was your unit repaired for the silver problem?
Thanks for posting the pic I had fun pulling mine apart for a comp.[attachment 187899 DSCN0753.JPG][attachment 187900 DSCN0768.JPG][attachment 187901 DSCN0765.JPG][attachment 187902 DSCN0767.JPG]
HH everyone
I notice 4 differences between the models.
1. below the bat wires and above the coil wires it looks as if a adjustable pot has been added.
2. lower center at C16 different components.
3. beneath the black tape a additional piece of shielding has been added. Please confirm this for me if you can as it might be something to do with emi on my unit. (ps love the tape)
4. this is probably do to the other info you said you hid but their is no revision number or date or I have a newer rev board.
I don't now for sure but the new pot or the existing one might be a sens adjustment. My guess is the new one. Maybe our machines can be super-tuned?
The other point Id like to make is that (and I'm no expert) is that the left side processor may be a eprom chip for memory.
I hope someone will be nice and show the inside of the G2 so we would know about the double processors for sure. But even that might not answer our question as their are dual core processors all in one unit.
The other question is lower center of the board where we have different components has your board been reworked it appears to have a white residue or flux residue or smeared legend?
And was your unit repaired for the silver problem?
Thanks for posting the pic I had fun pulling mine apart for a comp.[attachment 187899 DSCN0753.JPG][attachment 187900 DSCN0768.JPG][attachment 187901 DSCN0765.JPG][attachment 187902 DSCN0767.JPG]
HH everyone
BH_Landstar_
New member
Mine has 3 and not 2.9 btw !
The only other thing as you say is bottom center, it's a capacitor (a big one).
Under the black tape is a strip of card.
As for number 1, no adjustable pot added.
And number 4, I removed that info from the picture.
The only other thing as you say is bottom center, it's a capacitor (a big one).
Under the black tape is a strip of card.
As for number 1, no adjustable pot added.
And number 4, I removed that info from the picture.
BH_Landstar_
New member
To add more, mine was updated before I even got it. The long processor has been replaced as has the component at C16 with a large capacitor that you can see.
I don't think that the processors are dual core, but they are both programable and they control different parts of the detecotor, this is how it gets it's speed to process information and relay in back to the user via audio and VDI display.
I don't think that the processors are dual core, but they are both programable and they control different parts of the detecotor, this is how it gets it's speed to process information and relay in back to the user via audio and VDI display.
Monte--yes, this is the plain jane model and you do use the gg to ground balance. I still haven't had a chance to "monkey" with it. This came right from the factory. Serial # 0111XXXx so it was made in January. This at noon for me and I am going to try to get a hold of Mike Scott and see if it is of any importance or just small bump up----If I find anything during the next few days I will let you know---------this 50 degree break in my weather has kept me a little busier than normal---lol Barney
that is not a adjustable pot just under the power wires below the 17 pin connector # for the display?BH_Landstar_ said:
It looks like one in the pic but is partially hidden, either way it is a different component than I have on mine.
Sure would like to see A G2
Why did you hid the rev #, what Difference would that make as far as bad info on the net?
When you say card under the tape do you mean like a cut up credit card type card or card board?
Thanks for your response and letting me compare units.
HH
Jim
BH_Landstar_
New member
Barney, does yours look like the picture below ?
Wow I'm surprised to hear the version 4s are the plain Jane model, I thought it was the 1s but I also thought all the first models that went to Cabellas had manual as well as GG balance.
That is the way they were marketed from the start. I'm starting to think versions have nothing to do with the operation just software Processes. And the operation is all design related I.E the different components between models. Also one of the version 4 sold on here was said to have Vco and manual GB.
Very interesting !!!
HH everyone.
That is the way they were marketed from the start. I'm starting to think versions have nothing to do with the operation just software Processes. And the operation is all design related I.E the different components between models. Also one of the version 4 sold on here was said to have Vco and manual GB.
Very interesting !!!
HH everyone.
BH_Landstar_
New member
I've had a closer look at the pictures that godigit1 posted and compared the boards in more detail. It looks as if mine has been modified to some degree.
The first picture in this post shows the board that godigit1 has, the other pictures show the mods that have been done to mine by FTP. Not sure why these have been done yet.
As you will see in the 2nd picture, there is a resistor just right of the yellow wire that connects to the red wire on the left (one of the coil wires).
Also, the component to the left above the yellow wire is different, smaller capacitor maybe ?
The next difference is the capacitor marked as C9 in the 3rd picture.
And now on to the next difference, bottom center of the board, I have two capacitors that have been replaced, and to the right of that there has been a mod where the resistor (R14) has been removed and replaced by a wire link that continues to bridge L3.
Not sure what these mods do, and no idea why they have been done, but I'd love to know if anyone at FTP wants to PM me with the details etc.
godigit1, under the black tape is a strip of card board, very thin at that too.
The first picture in this post shows the board that godigit1 has, the other pictures show the mods that have been done to mine by FTP. Not sure why these have been done yet.
As you will see in the 2nd picture, there is a resistor just right of the yellow wire that connects to the red wire on the left (one of the coil wires).
Also, the component to the left above the yellow wire is different, smaller capacitor maybe ?
The next difference is the capacitor marked as C9 in the 3rd picture.
And now on to the next difference, bottom center of the board, I have two capacitors that have been replaced, and to the right of that there has been a mod where the resistor (R14) has been removed and replaced by a wire link that continues to bridge L3.
Not sure what these mods do, and no idea why they have been done, but I'd love to know if anyone at FTP wants to PM me with the details etc.
godigit1, under the black tape is a strip of card board, very thin at that too.
Thanks Bh Landstar for showing the further differences between the boards. I'm going to ad a piece of thin plastic under my tape to further isolate the LCD from the headphones.
I would think the rework done on your board was to convert from saturated audio to Vco and or to deal with the emi I experience with my unit. Maybe some one can show a newer version to show that this is still being done but not as rework.
I'm thinking the addition of the resistor to the coil if on a receiving wire seems to me as possibly be the silver fix as it would change the signal received and processed by the computer. Or if on the transmit line it could be the emi fix allowing the newer units to operate at higher sensitivity adding resistance to the signal output. I do not know what the different wires are as to coil interface.
This is all very interesting and I think down the line I will buy some connectors and match value of that resistor and try adding it externally to see if it helps with my emi and or increases the silver sens. I do not seem to have a silver problem but if it added to my units ability It would be worth adding in this way and I could remove it for prospecting or relic hunting.
I hope someone from fisher gets contacts of you and or posts on the forum to help explain this.
Thanks Again
I would think the rework done on your board was to convert from saturated audio to Vco and or to deal with the emi I experience with my unit. Maybe some one can show a newer version to show that this is still being done but not as rework.
I'm thinking the addition of the resistor to the coil if on a receiving wire seems to me as possibly be the silver fix as it would change the signal received and processed by the computer. Or if on the transmit line it could be the emi fix allowing the newer units to operate at higher sensitivity adding resistance to the signal output. I do not know what the different wires are as to coil interface.
This is all very interesting and I think down the line I will buy some connectors and match value of that resistor and try adding it externally to see if it helps with my emi and or increases the silver sens. I do not seem to have a silver problem but if it added to my units ability It would be worth adding in this way and I could remove it for prospecting or relic hunting.
I hope someone from fisher gets contacts of you and or posts on the forum to help explain this.
Thanks Again
Thanks Amberjack.
It looks like they are now using the components replaced on BH Landstars unit as normal production as your board has not been reworked. So I would say they are for the purpose of the VCO And silver fix. All the versions # I would say are just software tweaks to refine the unit. In my mind this answers allot of questions and makes me feel good about my version still being the same machine only without VCO. Now if someone would post a G2 That would be great.
HH
It looks like they are now using the components replaced on BH Landstars unit as normal production as your board has not been reworked. So I would say they are for the purpose of the VCO And silver fix. All the versions # I would say are just software tweaks to refine the unit. In my mind this answers allot of questions and makes me feel good about my version still being the same machine only without VCO. Now if someone would post a G2 That would be great.
HH
oh that's good glad i could help and after reading this thread i was wondering what was in there ?
what is VCO? excuse my ignorance but i to think if i understand more about what i am using it will help use it better?
i do have one complaint that the screen is not flat with the rest of the face plate see the little bits of sand a bugga to get out!!
what is VCO? excuse my ignorance but i to think if i understand more about what i am using it will help use it better?
i do have one complaint that the screen is not flat with the rest of the face plate see the little bits of sand a bugga to get out!!
Hi Amberjack
VCO means voltage controlled oscillator. It is when the machine gets louder the closer you get to a target and or quieter when the target is deep. A good example is the Pin Point function on your unit.
Between that and your depth gauge you will learn to id allot of the surface foil and small undesirable targets. My version came out before they added this function in disc mode. I only have VCO in all metal and pinpoint function. My unit has saturated audio in disc mode meaning it hits at the same volume no matter how deep or close i am to the target. When I first got it it was a little hard to get used to as I spent the last 14 years mainly detecting for gold with the gold master ( A all metal vco machine) Ive really become to like it as I can relax a little more on the hunt and not have to concentrate on whispers. Even though it is just supposed to have two tone response Ive learned it has allot of personality as far as little blips and squeaks being deep targets. I don't know what kind of Processes this machine has but the saturated audio with the computer assigned tones will sometimes hit things I cant even get in all metal or pin point. Makes for some deeper finds I think. This might sound amazing but I dug a Copper nail the size of a 8 common nail at 13 inches with my 5" coil. I could not get it with all metal or pinpoint until I was down about 5 inches.[attachment 188134 re size_0322101851.jpg]
There are some better explanations on this forum of A VCO if you run a search.
Good luck out there
Godigit
VCO means voltage controlled oscillator. It is when the machine gets louder the closer you get to a target and or quieter when the target is deep. A good example is the Pin Point function on your unit.
Between that and your depth gauge you will learn to id allot of the surface foil and small undesirable targets. My version came out before they added this function in disc mode. I only have VCO in all metal and pinpoint function. My unit has saturated audio in disc mode meaning it hits at the same volume no matter how deep or close i am to the target. When I first got it it was a little hard to get used to as I spent the last 14 years mainly detecting for gold with the gold master ( A all metal vco machine) Ive really become to like it as I can relax a little more on the hunt and not have to concentrate on whispers. Even though it is just supposed to have two tone response Ive learned it has allot of personality as far as little blips and squeaks being deep targets. I don't know what kind of Processes this machine has but the saturated audio with the computer assigned tones will sometimes hit things I cant even get in all metal or pin point. Makes for some deeper finds I think. This might sound amazing but I dug a Copper nail the size of a 8 common nail at 13 inches with my 5" coil. I could not get it with all metal or pinpoint until I was down about 5 inches.[attachment 188134 re size_0322101851.jpg]
There are some better explanations on this forum of A VCO if you run a search.
Good luck out there
Godigit