T25 Front panel LEDS very dim.

I’ll try this subject again.  The front panel leds on my T25 panel are so dim  they almost appear to be non functioning.  They only way I can confirm is the unequipped telephone line 2 is several shades of gray darker than line 1.  They may have been that way from the beginning, but can’t ever remember seeing a lit LED be so dim in brightness.  Just wanted to know if this is normal.