Electronics > Repair
Industrial LCD display
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Gominalo:
Hi all,

I am facing to a LCD display that died suddently during weekend. I've been checking voltages and they seem to be okay, next step i think will be T-CON pcb.
Can anyone guide me through troubleshooting? (Signals to be checked, power-up sequence...)
The display is used for a semiconductor wafer prober, see photos.

Thank you.
BennoG:
usually the backlight breaks down on this type of units.
If you shine a bright light on the front can you see the image a little ?
Benno
coromonadalix:
the backlight board as 4 outputs on it, or 2 in parallel ? 

check if you see markings on it, who would help you   for voltages and control pins


t-con is not for backlight ...


do i see tdk  something  on the ccfl  board   can you show us photos or write the numbers
Gominalo:

--- Quote from: BennoG on November 07, 2024, 05:48:21 pm ---usually the backlight breaks down on this type of units.
If you shine a bright light on the front can you see the image a little ?
Benno

--- End quote ---

That has been checked by another person and told me that there's no image but i'll check by myself.
Thank you.
Gominalo:

--- Quote from: coromonadalix on November 07, 2024, 05:53:50 pm ---the backlight board as 4 outputs on it, or 2 in parallel ? 

check if you see markings on it, who would help you   for voltages and control pins


t-con is not for backlight ...


do i see tdk  something  on the ccfl  board   can you show us photos or write the numbers

--- End quote ---

I supose that like others ccfl there are two tubes in series per side of the LCD that's why i have 4 connectors.

TDK S/N is: PCU-P235B

Thank you.
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