TDS3000/Repairs

CCFL Backlight of Display

The back light of the displays age and the light intensity will fall together with a colour shift towards red. Exchange CCFLs are available. The original CCFL has a length of ~150 mm and a diameter of ~ 2,5 mmm. A replacement CCFL that still fits in can be up to 153 mm, e.g._ 2.6 mm x 153 mm

Example of a replacement CCFL:

Size: 2.6 x 153 mm
Lamp Current: 5±0.5 mA
Running voltage: 330v ac and Starting voltage: 490v ac
Surface Brightness: 21000cdm²
Color Temperature: 7800 Kelvin (X=0.286 and Y=0.283)
Life Rating: 30000hours

The CCFL assembly (CCFL, wires, silicone isolator and reflector) can be retracted easily from LCD assembly by pushing the black plastic nose down.

Display

The original display in TDS3000 series is NEC NL6448BC20-08...NL6448BC20-08E.

Pictures

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  New CCFL on top and old CCFL below.