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Dell LCD Monitor P2412Hb

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peter6701:
Hi Everyone

I'm chasing a service manual/schematics for a DELL LCD Monitor P2412Hb .

It has a problem with it's backlight (LED Backlights in this one).

Problem #1 - Would function ok, until you powered off, then on again.  Backlight would not work.  Caps checked out ok on the power board, then I replaced a few caps on the controller board that had odd esr results....first power-up, looks ok. On/Off multiple times....looking good, until I powered it off and moved it to my desk...then it failed again.  The diagnosis continues.

Diagrams would be a great help.

Regards

Peter

michael first:

 Hi,what IC employs as inverter controller because depending on it it's possible to try to disable the protections

 as could be a malfunction of the inverter.

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