Modification

Increase LED timing circuit.

Difficulty Level

3 – Moderate – removal or replacement of internal components.

Components Required

1. Capacitor:
   • 220 µfd, 16V, ~2 minutes
   • 470 µfd, 16V, ~4 minutes
   • 1000 µfd, 16V, ~5 minutes

Instructions

1. Remove and replace C3 on the main PC board of the LEF Series master station with a different value capacitor to achieve the desired LED timing length.
2. LEDs will stay illuminated for the duration of the timing circuit from the moment the last sub station places a call.

LEF Master Stations

Locate and replace capacitor C3. Change value to a higher level to reach the desired timing circuit length.

• 220 µfd, 16V, ~2 minutes
• 470 µfd, 16V, ~4 minutes
• 1000 µfd, 16V, ~5 minutes

LEF-10C Master station

Locate and replace capacitor C3. Change value to a higher level to reach the desired timing circuit length.

• 220 µfd, 16V, ~2 minutes
• 470 µfd, 16V, ~4 minutes
• 1000 µfd, 16V, ~5 minutes