"sck0006" wrote in message
...
We have a TDS 220, S/N B070664, with a very dim backlight. It seems
stable, just very dim. The inverter measures 201VAC w/ the backlight
connected, 205V without. Is it safe to assume the tube is bad?
Tektronix charges $73.00 for the part now, as they no longer sell only
the tube (P/N 119-5585-00), it apparently now comes with the whole
plastic assembly (P/N 199-4991-11). Is there anywhere to still buy
just the tube? It lists the Mfr p/n for the tube as LM0F2964, MFG is
LF2569 (Sharp Corporation). Thanks for all help,

Steve


Probably the tube. There's lots of places that sell CCFL tubes in various
sizes and color temperatures, they're cheap. Just look up LCD backlight
replacement.