Nokia Ta | 1114 Schematic Diagram

Search the PDF for "KEYPAD_BL" or "LED_KP." You will find a circuit consisting of:

The BL-5C has three pins (sometimes four): nokia ta 1114 schematic diagram

The schematic provides component values (e.g., R2203 = 2.2 Ohms, L2200 = 4.7uH). You can order exact replacements from suppliers like Mouser or Digi-Key. Search the PDF for "KEYPAD_BL" or "LED_KP