TDS3000/Repairs: Difference between revisions
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==CCFL Backlight of Display== | ==CCFL Backlight of Display== | ||
The | The backlight of the displays age and the light intensity will fall, together with a colour shift towards red. | ||
A replacement CCFL that still | Replacement CCFLs are available. The original CCFL has a length of ~150 mm and a width of ~2.5 mm. | ||
A replacement CCFL that still fits in can be up to 153 mm long, e.g. 2.6 mm × 153 mm | |||
Example of a replacement CCFL: | Example of a replacement CCFL: | ||
: Size: 2.6 × 153 mm² | |||
: Lamp Current: 5±0.5 mA | |||
: Running voltage: 330 V<sub>AC</sub>, Starting voltage: 490 V<sub>AC</sub> | |||
: Surface Brightness: 21000 cdm² | |||
: Color Temperature: 7800 Kelvin (X=0.286 and Y=0.283) | |||
: Life Rating: 30000 hours | |||
The CCFL assembly (CCFL, wires, silicone isolator and reflector) can be retracted easily from LCD assembly by pushing the black plastic nose down. | The CCFL assembly (CCFL, wires, silicone isolator and reflector) can be retracted easily from the LCD assembly by pushing the black plastic nose down. | ||
==Display== | ==Display== | ||
The original display in TDS3000 series is NEC NL6448BC20-08...NL6448BC20-08E. | The original display in the TDS3000 series is a NEC NL6448BC20-08...NL6448BC20-08E. | ||
==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
TEK-TDS3000-CCFL.jpg|New CCFL on top and old CCFL below | TEK-TDS3000-CCFL.jpg|New CCFL on top and old CCFL below | ||
</gallery> | </gallery> | ||
[[Category:Instrument repair reports]] | |||
Latest revision as of 02:08, 15 January 2021
CCFL Backlight of Display
The backlight of the displays age and the light intensity will fall, together with a colour shift towards red.
Replacement CCFLs are available. The original CCFL has a length of ~150 mm and a width of ~2.5 mm. A replacement CCFL that still fits in can be up to 153 mm long, e.g. 2.6 mm × 153 mm
Example of a replacement CCFL:
- Size: 2.6 × 153 mm²
- Lamp Current: 5±0.5 mA
- Running voltage: 330 VAC, Starting voltage: 490 VAC
- Surface Brightness: 21000 cdm²
- Color Temperature: 7800 Kelvin (X=0.286 and Y=0.283)
- Life Rating: 30000 hours
The CCFL assembly (CCFL, wires, silicone isolator and reflector) can be retracted easily from the LCD assembly by pushing the black plastic nose down.
Display
The original display in the TDS3000 series is a NEC NL6448BC20-08...NL6448BC20-08E.
Pictures
-
New CCFL on top and old CCFL below
