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Shammydab
I believe you have not found the depth modification, the resistor you mention is connected to the automatic notch circuit section, on the positive input (pin 12) of the U18, believed to be a CD324 chip, and more then likely is an restrictive (current) enhancement to the trash out circuit for some persons personal interest.
The normal resistor there was a 560 ohm (not M-ohm) value resistor. Yours you say is a 510 MegaOhm resistor. The adjustable pot R62, that is connected to R63, and then to negative 4 volts, is called Trash Out adjustment, and is a 10K pot in my records.
I am interested in what the original resistor might have done and what the replacement resistor your unit now has is presently doing as far as actual use in regard to the automatic notch circuit and in connection to the trash out control pot. Now I could be wrong, but I am speak of my archive records and that is what it is based upon. I do not possess a Coin Scanner Pro machine myself.
Melbeta
I am not sure it is a CD324 chip, it is marked 324, and I just put the CD in front. Compass was famous for falsely marking the chips, with fake numbers, so that guys doing reverse engineering on the boards, would end up with non working detectors.
I checked again, and R63 is definitely a 560 ohm resistor. It is on Compass documents that I have. The documents are not faked, it is the part markings on the boards that are faked.
If you have those markings, do a ohm reading on the resistor, it may have wrong color bands on it to deceive the reverse engineer. I hate to tell you this and ruin your dinner...
Melbeta
Shammydab
I believe you have not found the depth modification, the resistor you mention is connected to the automatic notch circuit section, on the positive input (pin 12) of the U18, believed to be a CD324 chip, and more then likely is an restrictive (current) enhancement to the trash out circuit for some persons personal interest.
The normal resistor there was a 560 ohm (not M-ohm) value resistor. Yours you say is a 510 MegaOhm resistor. The adjustable pot R62, that is connected to R63, and then to negative 4 volts, is called Trash Out adjustment, and is a 10K pot in my records.
I am interested in what the original resistor might have done and what the replacement resistor your unit now has is presently doing as far as actual use in regard to the automatic notch circuit and in connection to the trash out control pot. Now I could be wrong, but I am speak of my archive records and that is what it is based upon. I do not possess a Coin Scanner Pro machine myself.
Melbeta
I am not sure it is a CD324 chip, it is marked 324, and I just put the CD in front. Compass was famous for falsely marking the chips, with fake numbers, so that guys doing reverse engineering on the boards, would end up with non working detectors.
I checked again, and R63 is definitely a 560 ohm resistor. It is on Compass documents that I have. The documents are not faked, it is the part markings on the boards that are faked.
If you have those markings, do a ohm reading on the resistor, it may have wrong color bands on it to deceive the reverse engineer. I hate to tell you this and ruin your dinner...
Melbeta
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