Tweet
FISHER 1265X METAL DETECTOR
Hi Eugene,
Yes, that seems to make more sense. I have not come across a late 1266X yet but if this is the transistor Fisher decided to replace the "problematic" Q506 with, I totally endorse it and I will try to source it to keep it in stock. Many thanks for the tip.
On the subject of my other faulty Fisher Cz70, I have now established that the CZ6, CZ7, CZ7 pro and CZ70 pro all share the same twin surfaced mounted pcbs.
I have a power supply problem where no voltage is being fed to the circuits and where you would think it should be easy enough to troubleshoot, but the fact is without a schematic, trying to trace the thin tracks on both layers and under the huge array of ics is not easy task.
I believe someone has connected the two pin power connector (J3 18v) the wrong way round as it fits in both ways unfortunately. So, with two good 9v batteries, the 18v supply is present between battery minus and both the cathode and anode of D1 -which is a type CS400D and cannot find any data on it, but it tests ok out of circuit.
Do you know what kind of diode is this? Also, I get no voltage reading across main electrolytic C1 so it looks like this is the area where the problem may lie??
I have never worked on one of these circuits before and surface mounted components are a nightmare to source, never mind removing and replacing them without the correct tooling.
I do need to establish what exactlly is D1 before I can continue the tedious task of tracing the supply link and other lesser feed voltages to the different stages.
If you have any information, it would be much appreciated.
Best regards
Tony
Hi Eugene,
Yes, that seems to make more sense. I have not come across a late 1266X yet but if this is the transistor Fisher decided to replace the "problematic" Q506 with, I totally endorse it and I will try to source it to keep it in stock. Many thanks for the tip.
On the subject of my other faulty Fisher Cz70, I have now established that the CZ6, CZ7, CZ7 pro and CZ70 pro all share the same twin surfaced mounted pcbs.
I have a power supply problem where no voltage is being fed to the circuits and where you would think it should be easy enough to troubleshoot, but the fact is without a schematic, trying to trace the thin tracks on both layers and under the huge array of ics is not easy task.
I believe someone has connected the two pin power connector (J3 18v) the wrong way round as it fits in both ways unfortunately. So, with two good 9v batteries, the 18v supply is present between battery minus and both the cathode and anode of D1 -which is a type CS400D and cannot find any data on it, but it tests ok out of circuit.
Do you know what kind of diode is this? Also, I get no voltage reading across main electrolytic C1 so it looks like this is the area where the problem may lie??
I have never worked on one of these circuits before and surface mounted components are a nightmare to source, never mind removing and replacing them without the correct tooling.
I do need to establish what exactlly is D1 before I can continue the tedious task of tracing the supply link and other lesser feed voltages to the different stages.
If you have any information, it would be much appreciated.
Best regards
Tony
Comment