: Character or Graphic LCD module, frequently found in 16x2 or 20x4 character formats.
Because the string "KL SN102" does not correspond to a widely recognized global standard part number (like those from TI, Texas Instruments, or Vishay), this appears to be a specific manufacturer part or a proprietary Printed Circuit Board (PCB) designation. kl sn102 94v 0 datasheet pdf 48 exclusive
You mentioned "48 exclusive" in your query. This is interpreted in two ways within the industry: : Character or Graphic LCD module, frequently found
drop-in replacements for standard Hitachi HD44780 displays. Users report that "S" type modules may require -5V for contrast control instead of the standard 0–5V range. Alibaba.com Troubleshooting & Usage Common Applications: : Character or Graphic LCD module
I can then help you find a or identify the failed component on the board.