Hi. This is a my first posting and I am hoping that the collective wisdom of the site will assist me with a little problem.
Some background; I bought a small lathe a couple of years ago. This has a variable speed drive with a digital speed indicator. The lathe was bought from Warco in the U.K. but was manufactured in China. The speed controller was manufactured by KB Electronics in the U.S.
The problem is that recently the speed indicator started to flicker and has now died. In all other respects, the lathe is working fine and there is nothing wrong with the speed control itself. Now, I traced the problem back to a failed 5V voltage regulator on the power supply board and I replaced the component so that I now have 5V at the display driver chip.
I then decided to replace this IC but I have no idea what it is, who made it and whether there is an available replacement. My search of catalogues revealed nothing so I am completely in the dark. It is 20-pin and bears the lettering 1511TGCCA and CCF608.00E1117 on the underside. I wonder if it is of Chinese origin. The four-digit display has the letters 5641BH-S on the side.
Some photos attached illustrate the issue.
If any of you could shed any light on this, I would be immensely grateful.
Regards
Richard
Some background; I bought a small lathe a couple of years ago. This has a variable speed drive with a digital speed indicator. The lathe was bought from Warco in the U.K. but was manufactured in China. The speed controller was manufactured by KB Electronics in the U.S.
The problem is that recently the speed indicator started to flicker and has now died. In all other respects, the lathe is working fine and there is nothing wrong with the speed control itself. Now, I traced the problem back to a failed 5V voltage regulator on the power supply board and I replaced the component so that I now have 5V at the display driver chip.
I then decided to replace this IC but I have no idea what it is, who made it and whether there is an available replacement. My search of catalogues revealed nothing so I am completely in the dark. It is 20-pin and bears the lettering 1511TGCCA and CCF608.00E1117 on the underside. I wonder if it is of Chinese origin. The four-digit display has the letters 5641BH-S on the side.
Some photos attached illustrate the issue.
If any of you could shed any light on this, I would be immensely grateful.
Regards
Richard